The disclosure generally relates to footwear, such as skates for playing hockey or other skating activities, or other types of footwear.
Skates are used by users in various sports such as ice hockey or roller hockey and other activities. A skate comprises a skate boot that typically comprises a number of parts assembled together to form the skate boot. This can include a body, sometimes referred to as a “shell”, a toe cap, a tongue, a tendon guard, etc.
While existing skates may offer decent performances, they may have some drawbacks. For instance, characteristics of those skates (e.g., range of motion of a user's foot, power transfer between the user's foot and a skating surface, comfort, customability, etc.) may be incompatible with one another and therefore some may need to be sacrificed during design of those skates.
Similar considerations may sometimes arise for other types of footwear (e.g., ski boots, snowboarding boots, etc.).
For these and/or other reasons, there is a need to improve skates and/or other footwear.
In accordance with various aspects, this disclosure relates to footwear, such as a skate (e.g., a hockey skate), comprising a boot (e.g., a skate boot) or other foot-receiving structure configured to receive a user's foot, in which the boot or other foot-receiving structure is designed to enhance performance, including a range of motion of the user and energy transfer (e.g., to a skating surface while skating or otherwise moving on the skating surface), fit on the user's foot, and/or comfort of the user, such as by having articulated, thermoformable and/or removable parts that may have desired properties in selected regions.
For example, in accordance with an aspect of the disclosure, there is provided a skate boot for a skate. The skate boot defines a cavity to receive a user's foot. The skate boot comprises a shell comprising a medial side portion configured to face a medial side of the user's foot, a lateral side portion configured to face a lateral side of the user's foot, a heel portion configured to face a heel of the user's foot, and an ankle portion configured to face an ankle of the user. The shell is articulated such that at least part of the ankle portion of the shell is movable relative to at least part of the medial side portion of the shell, at least part of the lateral side portion of the shell, and at least part of the heel portion of the shell. The skate boot comprises a liner removably disposed within the shell and thermoformable about the user's foot.
In accordance with another aspect of the disclosure, there is provided a skate boot for a skate. The skate boot defines a cavity to receive a user's foot. The skate boot comprises a shell comprising a medial side portion configured to face a medial side of the user's foot, a lateral side portion configured to face a lateral side of the user's foot, a heel portion configured to face a heel of the user's foot, and an ankle portion configured to face an ankle of the user. The shell comprises a lower shell member including at least part of the medial side portion of the shell, at least part of the lateral side portion of the shell, and at least part of the heel portion of the shell. The shell comprises an upper shell member including at least part of the ankle portion of the shell and pivotable relative to the lower shell member. The skate boot comprises a liner removably disposed within the shell and thermoformable about the user's foot.
In accordance with another aspect of the disclosure, there is provided a skate boot for a skate. The skate boot defines a cavity to receive a user's foot. The skate boot comprises a shell comprising a medial side portion configured to face a medial side of the user's foot, a lateral side portion configured to face a lateral side of the user's foot, a heel portion configured to face a heel of the user's foot, and an ankle portion configured to face an ankle of the user. The shell is articulated such that at least part of the ankle portion of the shell is movable relative to at least part of the medial side portion of the shell, at least part of the lateral side portion of the shell, and at least part of the heel portion of the shell. The shell is thermoformable about the user's foot. The skate boot comprises a liner disposed within the shell.
In accordance with another aspect of the disclosure, there is provided a skate boot for a skate. The skate boot defines a cavity to receive a user's foot. The skate boot comprises a shell comprising a medial side portion configured to face a medial side of the user's foot, a lateral side portion configured to face a lateral side of the user's foot, a heel portion configured to face a heel of the user's foot, and an ankle portion configured to face an ankle of the user. The shell is articulated such that at least part of the ankle portion of the shell is movable relative to at least part of the medial side portion of the shell, at least part of the lateral side portion of the shell, and at least part of the heel portion of the shell. The shell includes a plurality of zones that differ in stiffness. The skate boot comprises a liner disposed within the shell.
In accordance with another aspect of the disclosure, there is provided a skate boot for a skate. The skate boot defines a cavity to receive a user's foot. The skate boot comprises a shell comprising a medial side portion configured to face a medial side of the user's foot, a lateral side portion configured to face a lateral side of the user's foot, a heel portion configured to face a heel of the user's foot, and an ankle portion configured to face an ankle of the user. The skate boot comprises a liner removably disposed within the shell, thermoformable about the user's foot, and including a plurality of thermoformable materials that are different.
In accordance with another aspect of the disclosure, there is provided a goalie skate for a hockey goalkeeper. The goalie skate comprises a skate boot for receiving a foot of the hockey goalkeeper, the skate boot comprising a shell and a liner. The goalie skate comprises a blade for contacting ice; and a blade holder between the skate boot and the blade. The shell comprises a plurality of pieces that are movable relative to one another. The liner is removably disposed within the shell and thermoformable about the user's foot.
In accordance with another aspect of the disclosure, there is provided a goalie skate for a hockey goalkeeper. The goalie skate comprises a skate boot for receiving a foot of the hockey goalkeeper, the skate boot comprising a shell and a liner. The goalie skate comprises a blade for contacting ice; and a blade holder between the skate boot and the blade. The shell comprises a first piece and a second piece, the first piece being moveably connected to the second piece. The liner is removably disposed within the shell and thermoformable about the user's foot.
In accordance with another aspect of the disclosure, there is provided a goalie skate for a hockey goalkeeper. The goalie skate comprises a skate boot for receiving a foot of the hockey goalkeeper, the skate boot comprising a shell and a liner. The goalie skate comprises a blade for contacting ice; and a blade holder between the skate boot and the blade. The shell comprises a first piece and a second piece, the first piece being pivotably connected to the second piece. The liner is removably disposed within the shell and thermoformable about the user's foot.
In accordance with another aspect of the disclosure, there is provided a goalie skate for a hockey goalkeeper. The goalie skate comprises a skate boot for receiving a foot of the hockey goalkeeper, the skate boot comprising a shell and a liner. The goalie skate comprises a blade for contacting ice; and a blade holder between the skate boot and the blade. The skate boot comprises an upper portion and a lower portion; and the goalie skate is configured to allow movement of a lower leg of the wearer relative to the lower portion of the skate boot when the hockey goalkeeper wears the goalie skate and while the lower leg of the wearer does not move relative to the upper portion of the skate boot. The liner is removably disposed within the shell and thermoformable about the user's foot.
In accordance with another aspect of the disclosure, there is provided a goalie skate for a hockey goalkeeper. The goalie skate comprises a skate boot for receiving a foot of the hockey goalkeeper, the skate boot comprising a shell and a liner. The goalie skate comprises a blade for contacting ice; and a blade holder between the skate boot and the blade. The skate boot comprises an upper portion. The goalie skate is configured to allow movement of a lower leg of the wearer relative to the blade when the hockey goalkeeper wears the goalie skate and while the lower leg of the wearer does not move relative to the upper portion of the skate boot. The liner is removably disposed within the shell and thermoformable about the user's foot.
In accordance with another aspect of the disclosure, there is provided a goalie skate for a hockey goalkeeper. The goalie skate comprises a skate boot for receiving a foot of the hockey goalkeeper, the skate boot comprising a shell and a liner. The goalie skate comprises a blade for contacting ice; and a blade holder between the skate boot and the blade. The skate boot comprises an upper portion. The goalie skate is configured to allow movement of a lower leg of the wearer relative to the blade holder when the hockey goalkeeper wears the goalie skate and while the lower leg of the wearer does not move relative to the upper portion of the skate boot. The liner is removably disposed within the shell and thermoformable about the user's foot.
In accordance with another aspect of the disclosure, there is provided a goalie skate for a hockey goalkeeper. The goalie skate comprises a skate boot for receiving a foot of the hockey goalkeeper, the skate boot comprising a shell and a liner. The goalie skate comprises a blade for contacting ice and a blade holder between the skate boot and the blade. The shell and the liner are thermoformable such that: the shell can be heated to a first pre-determined temperature at which an original shape of the shell can be altered into an altered shape of the shell and the shell can keep altered shape of the shell after cooling down; and the liner can be heated to a second pre-determined temperature at which an original shape of the liner can be altered into an altered shape of the liner and the liner can keep altered shape of the liner after cooling down.
In accordance with another aspect of the disclosure, there is provided a goalie skate for a hockey goalkeeper. The goalie skate comprises a skate boot for receiving a foot of the hockey goalkeeper, the skate boot comprising a shell and a liner. The goalie skate comprises a blade for contacting ice, and a blade holder between the skate boot and the blade. The liner is removable from the skate boot and is thermoformable such that the liner can be heated to a pre-determined temperature at which an original shape of the liner can be altered into an altered shape of the liner and the liner can keep altered shape of the liner after cooling down.
In accordance with another aspect of the disclosure, there is provided a goalie skate for a hockey goalkeeper. The goalie skate comprises a skate boot for receiving a foot of the hockey goalkeeper, the skate boot comprising a shell and a liner. The goalie skate comprises a blade for contacting ice, and a blade holder between the skate boot and the blade. The liner comprises a first zone comprising a first material having a first rigidity and a second zone comprising a second material rigidity, the first rigidity being greater than the second rigidity, a ratio of the first rigidity over the second rigidity being at least 2.
In accordance with another aspect of the disclosure, there is provided a goalie skate for a hockey goalkeeper. The goalie skate comprises a skate boot for receiving a foot of the hockey goalkeeper, the skate boot comprising a shell and a liner, a blade for contacting ice, and a blade holder between the skate boot and the blade. The shell comprises a portion where an internal surface of the shell can be punched to plastically deform the shell to enlarge a cavity of the skate boot.
In accordance with another aspect of the disclosure, there is provided a goalie skate for a hockey goalkeeper. The goalie skate comprises a skate boot for receiving a foot of the hockey goalkeeper, the skate boot comprising a shell and a liner. The goalie skate comprises a blade for contacting ice, and a blade holder between the skate boot and the blade. The shell comprises a portion where an external surface of the shell is smooth and has a lower friction coefficient with ice than a lateral portion of a skate boot.
In accordance with another aspect of the disclosure, there is provided a goalie skate for a hockey goalkeeper. The goalie skate comprises a skate boot for receiving a foot of the hockey goalkeeper, the skate boot comprising a shell and a liner. The goalie skate comprises a blade for contacting ice, and a blade holder between the skate boot and the blade. The shell comprises a plurality of ribs, the ribs comprising a torsional rib contributing to a torsional stiffness of the skate boot, the ribs comprising an impact rib configured to dissipate energy of an impact with a flying puck when the impact occurs on the impact rib.
In accordance with another aspect of the disclosure, there is provided a goalie skate for a hockey goalkeeper. The goalie skate comprises a skate boot for receiving a foot of the hockey goalkeeper, the skate boot comprising a shell and a liner. The goalie skate comprises a blade for contacting ice, and a blade holder between the skate boot and the blade. The shell comprises a plurality of ribs, the ribs comprising a torsional rib contributing to a torsional stiffness of the skate boot, the ribs comprising an impact rib configured to spread energy of an impact with a flying puck when the impact occurs on the impact rib.
These and other aspects of this disclosure will now become apparent to those of ordinary skill in the art upon review of the following description of embodiments in conjunction with the accompanying drawings.
A detailed description of embodiments of the disclosure is provided below, by way of example only, with reference to drawings annexed hereto, in which:
In the drawings, embodiments are illustrated by way of example. It is to be expressly understood that the description and drawings are only for purposes of illustration and as an aid to understanding, and are not intended to be limiting.
The skate 10 comprises a skate boot 22 configured to receive a foot 11 of the goalie 12 and a skating device 28 disposed beneath the skate boot 22 to engage the ice 14. In this embodiment, the skating device 28 comprises a blade 26 for contacting the ice 14 and a blade holder 24 between the skate boot 22 and the blade 26. The skate 10 has a longitudinal direction, a widthwise direction, and a heightwise direction.
As further discussed later, in this embodiment, the skate boot 22 is designed to enhance performance, including a range of motion of the goalie 12 and energy transfer to the ice 14 while skating or otherwise moving on the ice 14, fit on the goalie's foot 11, and/or comfort of the goalie 12, such as by having articulated, thermoformable and/or removable parts that may have desired properties in selected regions.
In this embodiment, the skate 10 is designed specifically for goalkeeping by the goalie 12, as opposed to other skates for hockey players other than goalies (i.e., forwards and defensemen), and can thus be referred to as “goalie skates”. Goalie skates may differ from other skates for hockey players other than goalies in many aspects, as those with ordinary skill in the art will appreciate. For example, goalie skates typically are free from a tendon guard and have a tongue which defines their highest point (i.e., the point that is farthest from an ice-contacting surface of the skate's runner), resulting in a ratio of a height of the skate boot over a length of the skate boot that is relatively small (e.g. no more than 0.8), which allows the skates to be lighter and allow the goalie to be more agile, while player skates often have a tendon guard that is configured to protect the Achille's tendon, which results in a higher ratio of a height of the skate boot over a length of the skate boot. As another example, goalie skates typically have a blade with a flat portion of an ice-contacting surface that is relatively high (e.g., at least 70% of a length of the blade) which allows goalies to also be more agile, while player skates often have a blade with no flat portion or with a flat portion of an ice-contacting surface that is smaller to increase power transfer during a skating stride. As another example, goalie skates typically have a cowling to protect the goalie's foot from impact with flying pucks and hold the blade of the goalie skate, or reinforced portions in the skate boot to protect the goalie's foot from impact with flying pucks and hold the blade of the goalie skate as described in U.S. patent application Ser. No. 15/270,756, which is incorporated by reference herein in its entirety, while player skates often do not comprise such cowling or reinforced portions to reduce their weight and/or improve their performances.
The skate boot 22 defines a cavity 54 for receiving the goalie's foot 11. With additional reference to
More particularly, the skate boot 22 may comprise a heel portion 21 configured to face the heel HL of the goalie's foot, an ankle portion 23 configured to face the ankle A of the goalie, a medial side portion 25 configured to face the medial side MS of the goalie's foot, a lateral side portion 27 configured to face the lateral side LS of the goalie's foot, an instep portion 41 configured to face the instep IN of the goalie's foot, a sole portion 29 configured to face the plantar surface PS of the goalie's foot, and a toe portion 19 configured to receive the toes T of the goalie's foot.
As it is for goalkeeping, the skate boot 22 may be shorter than skate boots of conventional skates for hockey players other than goalies. For example, in some embodiments, a ratio HB/LB of a height HB of the skate boot 22 over a length LB of the skate boot 22 may be no more than 0.8, in some cases no more than 0.775, in some cases no more than 0.75, in some cases no more than 0.725, and in some cases even less.
Still, in this embodiment, the skate 10 may support the goalie's foot 11 relatively high relative to the ice 14. A support height HS of the skate 10, which refers to a height from a bottom 50 of the blade 26 to a bottom 52 of the skate boot 22, may be relatively large. For example, in some embodiments, a ratio HS/H of the support height HS of the skate 10 over an overall height H of the skate 10 may be at least 0.25, in some cases 0.275, in some cases at least 0.30, in some cases at least 0.325, in some cases at least 0.35, and in some cases even more. The ratio of the support height HS of the skate 10 over the overall height H of the skate 10 may have any other value in other embodiments. For instance, in some embodiments, the support height HS of the skate 10 may be at least 70 mm, in some cases at least 75 mm, in some cases at least 80 mm, in some cases at least 85 mm, and in some cases even more. The support height HS of the skate 10 may have any other value in other embodiments.
In this embodiment, the skate boot 22 comprises a shell 30 and a liner 50. Also, in this embodiment, the skate boot 22 comprises facings 31, a tongue 34, a footbed 38, an insole, and an outsole 42. The skate boot 22 also comprises a strap 43 (e.g., including a hook-and-loop fastener), and eyelets 461-46E extending through the shell 30 and the liner 50 vis-à-vis apertures 48 in order to receive a lace for lacing the skate 10. The shell 30 of the skate boot 22 is a body that imparts strength to the skate boot 22 to support the goalie's foot 11. More particularly, in this embodiment, the shell 30 comprises a heel portion 62 for receiving the heel HL of the goalie 12, an ankle portion 64 for receiving the ankle A of the goalie 12, medial and lateral side portions 66, 68 for facing the medial and lateral sides MS, LS of the goalie's foot 11, respectively, and a toe-covering portion 69 for covering and protecting toes T of the goalie 12. The heel portion 62 may be formed such that it is substantially cup-shaped for following the contour of the heel HL of the goalie 12. The ankle portion 64 comprises medial and lateral ankle sides 74, 76. In this embodiment, the shell 30 comprises two internal projections 91, 93 between the heel portion 62 and the ankle portion 64 to effectively hold or “lock” the heel HL fully inside the heel portion 62 when the goalie 12 wears the skate 10, to increase power transfer from the lower leg of the goalie 12 to the ice. The medial ankle side 74 has a medial depression 78 for receiving the medial malleolus MM of the goalie 12 and the lateral ankle side 76 has a lateral depression 80 for receiving the lateral malleolus LM of the goalie 12. The lateral depression 80 is located slightly lower than the medial depression 78 for conforming to the morphology of the goalie's foot 11. In this example, the shell 30 also comprises a sole portion 69 configured to face the plantar surface PS of the goalie foot 11. The sole portion 69 of the shell 30 constitute at least part of the sole portion 29 of the skate boot 22. The ankle portion 64 may further comprise a rear portion 82 facing the lower part LP of the Achilles tendon AT of the goalie 12. In this example, the skate boot 22 is free of (i.e., without) a tendon guard affixed to the rear portion 82 of the ankle portion 64 and extending upwardly therefrom as is conventionally found in skates for hockey players other than goalies.
In this embodiment, the lateral ankle side 76 of the ankle portion 64 extends lower than the medial ankle side 74 of the ankle portion 64 in the height-wise direction of the skate 10. More specifically, the ankle portion 64 comprises a medial upper edge 45 facing a medial side of the ankle of the goalie's foot 11 and a lateral upper edge 47 facing a lateral side of the ankle of the goalie's foot 11. The lateral upper edge 47 extends lower than the medial upper edge 45 in the height-wise direction of the skate 10 such that the medial upper edge 45 is higher than the lateral upper edge 47 by a vertical offset DV. The lower lateral upper edge 47 may be helpful to relieve pressure on the lateral side LS of the goalie's foot 11 while allowing the goalie 12 to have a deeper stance (i.e., squat closer to the ice 14). Moreover, the higher medial upper edge 45 may provide additional protection and support to the goalie's foot 11. For example, the vertical offset DV of the lateral upper edge 47 and the medial upper edge 45 of the ankle portion 64 may be at least 10 mm, in some cases at least 15 mm, in some cases at least 20 mm, and in some cases even more.
The vertical offset DV may be significant relative to the overall height H of the skate 10. For instance, a ratio DV/H of the vertical offset DV of the lateral upper edge 47 and the medial upper edge 45 of the ankle portion 64 over the overall height H of the skate 10 may be at least 0.02, in some cases at least 0.04, in some cases at least 0.06, in some cases at least 0.08, and in some cases even more.
With additional reference to
More particularly, in this embodiment, the shell 30 comprises a lower shell member 421 and an upper shell member 42 that is movable relative to the lower shell member 40. In this example, the lower shell member 40, which may also be referred to as a “main shell member” or “foot covering” of the shell 30, includes at least part of the medial side portion 66 of the shell 30, at least part of the lateral side portion 68 of the shell 30, and at least part of the heel portion 62 of the shell 30, whereas the upper shell member 42, which may also be referred to as a “cuff” of the shell 30, includes at least part of the ankle portion 64 of the shell 30.
More particularly, in this embodiment, the shell 30 comprises a plurality of shell members 421-42p connected to one another and movable relative to one another during skating or otherwise moving on the ice 14.
Specifically, in this embodiment, a lower shell member 421 of the shell members 421-42p which may also be referred to as a “main shell member”, a “main foot-covering shell member”, or simply a “foot covering” of the shell 30, includes at least part of (i.e. part of or an entirety of) the medial side portion 66 of the shell 30, at least part of the lateral side portion 68 of the shell 30, and at least part of the heel portion 68 of the shell 30. For instance, in some embodiments, the lower shell member 421 may be configured to cover at least 70%, in some embodiments at least 80%, in some embodiments at least 90%, and in some embodiments even more, of a total surface of the goalie's foot 11 when the goalie wears the skate 10.
The main foot-covering shell member 421 may have any suitable height. For example, in some embodiments, a ratio of a height HM of the main foot-covering shell member 421 over a height HB of the skate boot 22 may be at least 0.4, in some embodiments at least 0.5, in some embodiments at least 0.6, in some embodiments even more (e.g., at least 0.7), in some embodiments no more than 0.8, in some embodiments no more than 0.7, in some embodiments no more than 0.6, and in some embodiments even less (no more than 0.5).
In this embodiment, an upper shell member 422 of the shell members 421-42p, which may also be referred to as a “cuff” of the shell 30, includes at least part of the ankle portion 64 of the shell 30 and is movable relative to the main foot-covering shell member 421 when the goalie 12 skates or otherwise moves on the ice 14. In this example, the cuff 422 is pivotable relative to the main foot-covering shell member 421 when the goalie 12 flexes his/her foot.
The cuff 422 may have any suitable height. For example, in some embodiments, a ratio of a height HC of the cuff 422 over the height HB of the skate boot 22 may be at least 0.2, in some embodiments at least 0.3, in some embodiments at least 0.4, in some embodiments even more (e.g., at least 0.5), and in some embodiments no more than 0.6, in some embodiments no more than 0.5, in some embodiments no more than 0.4, and in some embodiments even less (e.g., no more than 0.3).
In this embodiment, the main foot-covering shell member 421 constitutes at least part of the medial and lateral side portions 66, 68 and at least part of the heel portion 62 of the shell 30, while the cuff 422 constitutes at least part of the ankle portion 64 of the shell 30. More particularly, in this embodiment, the main foot-covering shell member 421 constitutes an entirety of the medial and lateral side portions 66, 68 and an entirety of the heel portion 62 of the shell 30, while the cuff 422 constitutes an entirety of the ankle portion 64 of the shell 30.
The main foot-covering shell member 421 and the cuff 422 may be designed to have different mechanical properties. For instance, in some embodiments, the main foot-covering shell member 421 may be stiffer than the cuff 422. For example, in this embodiment, a thickness of walls forming the main foot-covering shell member 421 may be different from a thickness of walls forming the cuff 422. In some embodiments, a ratio of the average thickness of walls forming the main foot-covering shell member 421 over the average thickness of walls forming the cuff 422 may be at least 1.1, in some embodiments at least 1.2, in some embodiments at least 1.5, and in some embodiments even more (e.g., at least 2). As another example, the main foot-covering shell member 421 may comprise a material 72 that makes up at least a substantial part (i.e., a substantial part or an entirety) of the main foot-covering shell member 421 and that is different from a material 74 of the cuff 422 which makes up at least a substantial part (i.e., a substantial part or an entirety) of the cuff 422. In particular, a rigidity of the material 72 may differ from a rigidity of the material 74. In some embodiments, a ratio of the rigidity of the material 72 over the rigidity of the material 74 is at least 1.1, in some embodiments at least 1.5, in some embodiments at least 2, and in some embodiments even more (e.g., at least 3).
In this embodiment, the main foot-covering shell member 421 and the cuff 422 are movably connected to one another. Specifically, the main foot-covering shell member 421 and the cuff 422 are pivotably connected to one another. In particular, in this embodiment, the shell 30 comprises a pivot 56 disposed between the main foot-covering shell member 421 and the cuff 422 to allow them to pivot relative to one another. In this example, the pivot 56 is configured to sit below the medial and lateral malleoli MM, LM and comprises a pair of pivot elements 441, 442 that are disposed on respective ones of the medial side portion 66 and the lateral side portion 68 of the shell 30 and collinear. In this example, the pair of colinear pivot elements 441, 442 defines a pivot axis 46 of the pivot 56 around which the cuff 422 pivots relative to the main foot-covering shell member 421.
As shown in
The shell 30 may have any suitable pre-determined range of positions. In some embodiments, the pre-determined range of positions may span at least 15°, in some embodiments at least 20°, in some embodiments at least 25°, and in some embodiments even more (e.g., at least 45°).
This may enable the goalie to be more agile by improving the range of motion of the goalie's lower legs and ankle while the goalie wears the skate without compromising performances (e.g., power transfer from the goalie's leg and ankle to the ice, reactiveness of the skate, etc.). Notably, in traditional skates, the range of motion of the goalie's lower leg relative to the skate principally depends on tightness and stiffness of the skate boot over the goalie's foot and ankle, and increasing tightness and stiffness of the skate boot diminishes the range of motion of the goalie's lower leg relative to the skate. In this embodiment, the shell 30 may enable an increased range of motion of the goalie's lower leg relative to the main foot-covering shell member 421 without compromising tightness and stiffness of the skate boot 22 over the goalie's foot and ankle. More specifically, in this embodiment, the goalie skate 10 is configured to allow movement of the lower leg of the goalie relative to the main foot-covering shell member 421, the blade holder 24 and the blade 26 when the hockey goalkeeper wears the goalie skate 10 and while the lower leg of the hockey goalkeeper does not move relative to the cuff 422. In particular, the goalie skate 10 may allow movement of the lower leg of the goalie relative to the main foot-covering shell member 421, the blade holder 24 and the blade 26 while the lower leg of the hockey goalkeeper does not move relative to the cuff 422 over a range of positions that corresponds to the pre-determined range of positions of the shell 30.
In this embodiment, at least part of (i.e. part of or an entirety of) the shell 30 may be thermoformable about the goalie's foot 11 such that such that the shell 30 can be heated to a pre-determined temperature at which an original shape of the shell 30 can be altered into an altered shape and can keep its altered shape after cooling down. More specifically, in this embodiment, at least part of the main foot-covering shell member 421 and at least part of the cuff 422 are thermoformable about the goalie's foot 11. More specifically, in this embodiment, at least a majority of (i.e. a majority of or an entirety of) the main foot-covering shell member 421, at least a majority of the cuff 422 are thermoformable about the goalie's foot 11, and at least part of the shell 30 is non-thermoformable. More specifically, in this embodiment, at least part of the medial side portion 66, at least part of the lateral side portion 68, at least part of the heel portion 62, and at least part of the ankle portion 64 of the shell 30 are thermoformable about the goalie's foot 11, and the toe-covering portion 69 is non-thermoformable. To achieve this, the shell 30 may comprise one or more different thermoformable materials (e.g. at the medial side portion 66, the lateral side portion 68, the heel portion 62, and/or the ankle portion 64) and one or more different non-thermoformable materials (e.g., at the toe-covering portion 69).
Practically, as shown in
Thermoformability (i.e., a degree of ease with which that portion can be thermoformed, higher thermoformability entailing that less energy is needed to achieve a given level of deformation or more deformation is achieved with a given level of energy) of the materials of the shell 30 may be different between two different thermoformable portions of the shell 30. For example, thermoformabilities of the materials of the medial and lateral side portions 66, 68 and ankle portion 64 of the shell 30 may be greater than a thermoformability of the material of the heel portion 62 of the shell 30.
In this embodiment, the shell 30 may also comprise portions 1601-160p where an internal surface 162 of the shell 30 can be punched to plastically deform the shell 30, for example to enlarge the cavity 54 of the skate boot 22 at the respective portions 1601-160p. More specifically, in this embodiment, the internal surface 162 of the main foot-covering shell member 421 comprises a punchable portion 1601 that is configured to cover a medial metatarsus of the goalie foot 11, a punchable portion 1602 that is configured to cover a lateral metatarsus of the goalie foot 11, and a punchable portion 1603 that is configured to face the plantar surface PS of the goalie foot 11, and the cuff 422 comprises a punchable portion 1604 that is configured to cover the medial malleolus MM and a punchable portion 1605 that is configured to cover the lateral malleolus LM.
In this embodiment, the skate 10 may be cowlingless, i.e., free of (i.e., without) any cowling (i.e., hard cover) covering a toe area 31, a heel area 33, a lower medial area 35, and a lower lateral area 37 of the skate boot 22. This contrasts with conventional goalie skates, which comprise a cowling covering a toe area, a heel area, a lower medial area, and a lower lateral area of a skate boot.
By being cowlingless, in this embodiment, the skate 10 may facilitate the thermoforming and/or punching capabilities of the shell 30, by avoiding a structure which would restraint the thermoforming capability of the shell 30 and/or which would also need to be customably adapted to properly fit the altered shape of the shell 30.
By being cowlingless, in this embodiment, as shown in
As the skate 10 is cowlingless, in this embodiment, the main foot-covering shell member 421 and the cuff 422 of the shell 30 comprise a plurality of zones that are more or less exposed to flying pucks during play. For instance, in this embodiment, a bottom region 84 of the lateral side portion 68 of the shell 30, a bottom region 86 of the medial side portion 66 of the shell 30, a bottom region 88 of the heel portion 62 of the shell 30, and a bottom region 90 of the toe covering portion 32 are exposed. This is in contrast to the conventional skate for a hockey goalie, in which such bottom regions are covered by a cowling.
To appropriately protect the goalie foot 11 while remaining exposed (i.e., without any cowling covering it), the shell 30 may be reinforced where exposed to impact with a puck during play. That is, in view of an absence of a cowling in the skate 10, the shell 30 is reinforced in one or more zones of the shell 30 expected to be impacted by a puck during play in order to properly protect the goalie's foot 11. To that end, the shell 30 comprises reinforced zones 94 exposed to impact with a puck during play. The reinforced zones 94 of the shell 30 may be strengthened to take into account the absence of a cowling in the skate 10. For instance, the reinforced zones 94 of the shell 30 may have a material composition (e.g., a different, stronger material or an additional material) and/or a shape (e.g., a thicker area) that makes that part of the shell 30 more protective. Consequently, the stiffness of the shell 30 may vary for different zones of the shell 30, e.g., a stiffness of a given one of the reinforced zones 94 may be different from a stiffness of a given one of non-reinforced zones 97. In this example of implementation, the reinforced zones 94 of the shell 30 do not extend over an entirety of the shell 30 such that the reinforced zones 94, which may be more likely to be impacted by a puck during play, may provide more impact protection (e.g., be stronger and/or able to absorb more energy from impacts) than non-reinforced zones 97 of the shell 30 that are outside of the reinforced zones 94 and that may be less likely to be impacted by a puck during play.
In this embodiment, the reinforced zones 94 of the shell 30 comprise at least part of the medial and lateral side portions 66, 68 of the shell 30 and at least part of the heel portion 62 of the shell 30. For instance, the reinforced zone 94 comprises the bottom region 84 of the lateral side portion 68, the bottom region 86 of the medial side portion 66, and the bottom region 88 of the heel portion 62 of the shell 30.
For instance, in this embodiment, the reinforced zones 94 of the shell 30 have a thickness TR that is greater than a thickness TNR of the non-reinforced zones 97 of the shell 30. For instance, in some embodiments, a ratio TR/TNR of the thickness TR of the reinforced zones 94 of the shell 30 over the thickness TNR of the non-reinforced zones 97 of the shell 30 may be at least 1.1, in some cases at least 1.2, in some cases at least 1.5, in some cases at least 2, and in some cases even more. This ratio may have any other suitable value in other embodiments. For example, in some embodiments, the thickness TR of the reinforced zones 94 of the shell 30 may be at least 4 mm, in some cases at least 6 mm, in some cases at least 8 mm, in some cases at least 10 mm, and in some cases even more, while in some embodiments, in order to be less bulky, less heavy and less brittle, the thickness TR of the reinforced zones 94 of the shell 30 may be no more than 12 mm, in some embodiments no more than 10 mm, in some embodiments no more than 8 mm, and in some embodiments even less (e.g., no more than 7 mm). In comparison, in some embodiments, the thickness TNR of the non-reinforced zones 97 of the shell 30 may be at least 2 mm, in some cases at least 3 mm, in some cases at least 4 mm, and in some cases even more, while in some embodiments, in order to be less bulky and less heavy, the thickness TNR of the non-reinforced zones 97 of the shell 30 may be no more than 6 mm, in some embodiments no more than 4 mm, in some embodiments no more than 3 mm, and in some embodiments even less (e.g., no more than 2 mm). The thickness TR of the reinforced zones 94 of the shell 30 may have any other suitable value in other embodiments.
For example, in some embodiments, a thickness of the lateral side portion 68 of the shell 30 may be at least 6 mm, in some cases at least 7 mm, in some cases at least 8 mm, in some cases at least 9 mm, and in some cases even more. In some embodiments, the thickness of the lateral side portion 68 of the shell 30 may be greater than a thickness of the medial side portion 66 of the shell 30. As another example, a thickness of the heel portion 62 of the shell 30 may be at least 6 mm, in some cases at least 7 mm, in some cases at least 8 mm, in some cases at least 9 mm, and in some cases even more. In some embodiments, the thickness of the heel portion 62 of the shell 30 may be greater than the thickness of the medial side portion 66 of the shell 30.
The reinforced zones 94 may be significantly stiffer and/or harder than the non-reinforced zones 97. For instance, in some embodiments, a ratio of a modulus of elasticity of a given one of the reinforced zones 94 (e.g., over the lateral side portion 68 of the shell 30) over a modulus of elasticity of a given one of the non-reinforced zones 97 (e.g., over the medial side portion 66 of the shell 30) may be, in some cases, at least a 1.1, in some cases at least 1.2, in some cases at least 1.3, in some cases at least 1.4, in some cases at least 1.5, in some cases at least 2 and in some cases even more.
In some embodiments, only limited extents of the lateral side portion 68, the medial side portion 66, and/or the heel portion 62 of the shell 30 may be reinforced.
For example, in some embodiments, the reinforced portion 94 of the lateral side portion 68 may only span limited extents of the lateral side portion 68 such that a thickness of the lateral side portion 68 may vary. For instance, a thickness of a first area 113 corresponding to the reinforced zone 94 of the lateral side portion 68 of the shell 30 may be greater than a thickness of a second area 117 corresponding to the non-reinforced zone 97 of the lateral side portion 68 of the shell 30. The first area 113 of the lateral side portion 68 of the shell 30 may be lower than the second area 117 of the lateral side portion 68 in the height-wise direction of the skate 10. For instance, a ratio of the thickness of the first area 113 of the lateral side portion 68 over the thickness of the second area 117 of the lateral side portion 68 may be at least 1.1, in some cases at least 1.2, in some cases at least 1.3, and in some cases even more. For example, a thickness of the bottom region 84 of the lateral side portion 68 may be greater than a thickness of an upper region 87 of the lateral side portion 68 of the shell 30. A stiffness and/or a hardness of the lateral side portion 68 may vary. For instance, a stiffness of the first area 113 corresponding to the reinforced zone 94 of the lateral side portion 68 of the shell 30 may be greater than a stiffness of the second area 117 corresponding to the non-reinforced zone 97 of the lateral side portion 68 of the shell 30. For instance, a ratio of the stiffness of the first area 113 of the lateral side portion 68 over the stiffness of the second area 117 of the lateral side portion 68 may be at least 1.1, in some cases at least 1.2, in some cases at least 1.3, in some cases at least 1.4, in some cases at least 1.5, in some cases at least 1.6, in some cases at least 1.7, in some cases at least 1.8, in some cases at least 1.9, in some cases at least 2, and in some cases even more. For example, a stiffness of the bottom region 84 of the lateral side portion 68 may be greater than a stiffness of an upper region 87 of the lateral side portion 68 of the shell 30.
As another example, in some embodiments, the reinforced portion 94 of the heel portion 62 may only span limited extents of the heel portion 62 such that a thickness of a first area 119 corresponding to the reinforced zone 94 of the heel portion 62 of the shell 30 may be greater than a thickness of a second area 121 corresponding to the non-reinforced zone 97 of the heel portion 62 of the shell 30. The first area 119 of the heel portion 62 of the shell 30 may be lower than the second area 121 of the heel portion 62 in the height-wise direction of the skate 10. For instance, a ratio of the thickness of the first area 119 of the heel portion 62 over the thickness of the second area 121 of the heel portion 62 may be at least 1.1, in some cases at least 1.2, in some cases at least 1.3, and in some cases even more. For example, a thickness of the bottom region 88 of the heel portion 62 may be greater than a thickness of an upper region 123 of the heel portion 62 of the shell 30. A stiffness and/or a hardness of the first area 119 corresponding to the reinforced zone 94 of the heel portion 62 of the shell 30 may be greater than a stiffness and/or a hardness of the second area 121 corresponding to the non-reinforced zone 97 of the heel portion 62 of the shell 30. For instance, a ratio of the stiffness of the first area 119 of the heel portion 62 over the stiffness of the second area 121 of the heel portion 62 may be at least 1.1, in some cases at least 1.2, in some cases at least 1.3, in some cases at least 1.4, in some cases at least 1.5, in some cases at least 1.6, in some cases at least 1.7, in some cases at least 1.8, in some cases at least 1.9, in some cases at least 2, and in some cases even more. For example, a stiffness of the bottom region 88 of the heel portion 62 may be greater than a stiffness of an upper region 123 of the heel portion 62 of the shell 30.
While in this embodiment the thickness TR of the reinforced zones 94 of the shell 30 is greater than the thickness TNR of the non-reinforced zones 97 of the shell 30, the thickness TR of the reinforced zones 94 of the shell 30 is comparatively small in relation to a sum of thicknesses of the cowling 515 and a shell 530 of the skate boot 522 of the conventional goalie skate 510. In view of this relatively small thickness TR of the reinforced zones 94, a “lower foot-facing width” WB of the skate 10 may be smaller than a lower-foot-facing width of the conventional goalie skate 510. The lower-foot-facing width WB of the skate 10 is a width of the skate 10 measured in a lower portion of the skate boot 22 that faces the lateral and medial sides LS, MS of the goalie's foot 11. For instance, the lower-foot-facing width WB of the skate 10 may be measured at a bottommost two-inch extent of the skate boot 22. That is, the lower-foot-facing width WB of the skate 10 is a maximal width of the skate 10 measured between the bottom 52 of the skate boot 22 and a point two inches above the bottom 52 of the skate boot 22 in the height-wise direction of the skate 10. For example, in some embodiments, for a North American size 8D senior goalie skate (i.e., a regular width size 8 senior goalie skate), the lower-foot-facing width WB of the skate 10 may be no more than 80 m, in some cases no more than 70 mm, in some cases no more than 60 mm, and in some cases even less. Moreover, regardless of a size designation of the skate 10, in some embodiments, a ratio of the lower-foot-facing width WB of the skate 10 over the overall height H of the skate 10 may be no more than 0.35, in some cases no more than 0.325, in some cases no more than 0.3, in some cases no more than 0.275, in some cases no more than 0.25, and in some cases even less.
In this embodiment, the skate boot 22 comprises a gliding portion 312 where an external surface 57 of the skate boot 22 is smooth to facilitate gliding on the ice during lateral displacements of the goalie. In particular, the gliding portion 312 may be located on the medial side 66 of the shell 30, and may be configured to cover the medial metatarsus MM of the hockey goalkeeper.
The external surface 57 of the portion may have a surface finish that facilitates gliding on ice and reduces a friction coefficient on ice, e.g., by being smoother than a surface finish of a lateral part of the toe portion. In some embodiment, a friction coefficient on ice at −7° C. may be less than 0.15, in some embodiments less than 0.10, in some embodiments less than 0.05, and in some embodiments even less (e.g., less than 0.03).
In this embodiment, the shell comprises a plurality of ribs 1051-105r. The ribs 1051, 1052 may be torsional ribs which contributing to a torsional stiffness of the skate boot 22 in addition to providing impact protection by dissipating energy of an impact with a flying puck when the impact occurs on the impact rib 1051 or 1052 and/or by spreading energy of an impact with a flying puck when the impact occurs on the impact rib 1051 or 1052. The ribs 1051, 1052 may extend from the medial and lateral side portions 66, 68 to the front of the skate boot 22 (e.g. to a front portion of the toe covering portion 32 of the skate boot 22). The rib 1053 may be a post protector or an impact rib to provide protection by spreading energy of an impact with a goal post when the goalie moves laterally to protect the goal. In order to contribute to stiffness and/or dissipate or spread impact energy, the ribs 1051, 1052, 1053 may have suitable dimensions. For example, in this embodiment, a maximal width of the ribs is at least 1 mm, in some embodiments at least 3 mm, in some embodiments 5 mm and a maximal height of the ribs is at least 1 mm, in some embodiments at least 2 mm, in some embodiments 2.5 mm.
In this embodiment, the shell 30 comprises synthetic materials 72, 74 that makes up at least a substantial part (i.e., a substantial part or an entirety) of the shell 30. In this embodiment, the synthetic materials 72, 74 are polymeric materials. For example, in some embodiments, the polymeric materials 72, 74 may include polypropylene. In some cases, the polymeric materials 72, 74 may be a foam. For instance, in some cases, the polymeric materials 72, 74 may include an ethylene-vinyl acetate (EVA) foam or any other suitable foam. The polymeric materials 72, 74 may include any other suitable polymer in other embodiments (e.g., nylon, polyester, vinyl, polyvinyl chloride, an ionomer resin (e.g., Surlyn®), ultrahigh impact polypropylene, TPO, TPU, SEBS/PP, styrene-butadiene copolymer (e.g., K-Resin®) etc.). In some examples of implementation, the polymeric materials 72, 74 may be polymer-matrix composite materials (e.g., in which fibers are embedded in a polymer matrix). For instance, in some embodiments, the polymeric materials 72, 74 may comprise self-reinforced polymer composites, such as self-reinforced polypropylene composite (e.g., Curve). The synthetic materials 72, 74 may be implemented in any other suitable way in other embodiments (e.g., other types of polymers, other types of composite material, etc.).
In this example of implementation, the synthetic materials 72, 74 of the shell 30 are molded material. That is, the synthetic materials 72, 74 of the shell 30 are formed by a molding process in a mold. An original shape of each one of the synthetic materials 72, 74 of the shell 30 is thus a molded shape imparted during the molding process. More particularly, in this example of implementation, the synthetic materials 72, 74 of the shell 30 are thermoformed material. More particularly, in this example of implementation, the synthetic materials 72, 74 of the shell are thermoformable and remain thermoformable after being initially thermoformed and molded into their respective original shape. For instance, a sheet of a respective one of the synthetic materials 72, 74 may be heated (e.g., in an oven) until it reaches a pliable forming temperature. The sheet of the respective one of the synthetic materials 72, 74 is then formed via a mold to have a shape of the shell 30. Once the synthetic materials 72, 74 have cooled and any excess material has been trimmed, the shell 30 is complete, has its original shape and is ready for assembly with other components of the skate 10. In other examples of implementation, the synthetic materials 72, 74 of the shell 30 may be molded in any other suitable way (i.e., injection molded).
The synthetic materials 72, 74 of the shell 30 may be relatively rigid, i.e., may have relatively high moduli of elasticity (i.e., Young's modulus). For example, in some embodiments, the moduli of elasticity of the synthetic materials 72, 74 may be at least 4 GPa, in some cases at least 4.5 GPa, in some cases at least 5 GPa, in some cases at least 5.5 GPa, and in some cases even more. The moduli of elasticity of the synthetic materials 72, 74 of the shell 30 may have any other suitable value in other embodiments.
The synthetic materials 72, 74 of the shell 30 may be relatively hard and impact resistant. For instance, synthetic materials 72, 74 may not break during a Charpy impact strength test (−30° C., ISO 179).
The overlay 95 comprises a synthetic material 104 for imparting protection to the goalie's foot 11. More particularly, in this embodiment, the synthetic material 104 is more compliant (i.e., elastically deformable) than the synthetic materials 72, 74 of the shell 30 such that the synthetic material 104 is capable of absorbing energy from impacts better than the synthetic materials 72, 74. To that end, a modulus of elasticity (i.e., Young's modulus) of the synthetic material 104 may be smaller than the modulus of elasticity of the synthetic materials 72, 74. For example, a ratio of the modulus of the synthetic material 104 of the overlay 95 over the modulus of the synthetic materials 72, 74 may be, in some cases, no more than 0.9, in some cases no more than 0.8, in some cases no more than 0.7, in some cases no more than 0.6 and in some cases even less.
Furthermore, in this embodiment, the synthetic material 104 of the overlay 95 has a thickness TO that is different from a thickness TB of the synthetic materials 72, 74 of the shell 30. More particularly, in this embodiment, the thickness TO of the synthetic material 104 of the overlay 95 is less than the thickness TB of the synthetic materials 72, 74. For instance, in some embodiments, a ratio TO/TB of the thickness TO of the synthetic material 104 of the overlay 95 over the thickness TB of the synthetic materials 72, 74 may be no more than 0.25, in some cases no more than 0.2, in some cases no more than 0.15, and in some cases even less.
As shown in
In this embodiment, the liner 50 may comprise a medial side portion 416 for facing the medial side MS of the goalie's foot 11, a lateral side portion 418 for facing the lateral side LS of the goalie's foot 11, a heel portion 412 for facing the heel HL of the goalie 12, an ankle portion 414 for receiving the ankle A of the goalie 12, a sole portion 420 for facing the plantar surface PS of the goalie 12, a toe covering portion 422 for covering the toes T of the goalie 12, an instep portion 424 configured to face the instep IN of the player's foot and a tongue 34 connected to the toe covering portion 422 for protecting the top surface TS of the goalie foot 11. The liner 50 may further comprise straps 4321, 4322 respectively connected to the ankle portion 414 and to the tongue 34 to facilitate manipulation and adjustment of the liner 50 of the goalie foot 11 and/or in the shell 30. In this embodiment, the liner 50 comprises an elastic 434 which helps limiting an extent of a top opening between the medial and lateral side portions 416, 418, where the tongue 34 is located. In other embodiments, the liner 50 may comprise any other fastening system (e.g., a lace 436 and lacing openings 438 arrangement, the lacing openings 438 being configured for receiving the lace 436) in order to do so.
In this embodiment, the liner 50 may extend higher than the cuff 422 of the shell 30 such that the liner 50 defines the highest point of the skate 10. For instance, when the liner 50 is inside the shell 30, the ankle portion 414 of the liner 50 may protrude from the ankle portion 64 of the shell 30 by at least 1 mm, in some embodiments by at least 2 mm, in some embodiments by at least 5 mm, in some embodiments by at least 10 mm, in some embodiments by at least 15 mm, in some embodiments by even more (e.g., at least 20 mm).
In this embodiment, at least part of (i.e. part of or an entirety of) the liner 50 may be compressible, thermoformable and thermoexpandable such that the liner 50 can be heated to a pre-determined temperature at which the liner 50 will expand and an original shape of the liner 50 can be altered (e.g., compressed) into an altered shape and can keep its altered shape after cooling down. For instance, in this embodiment, at least part of the medial side portion 416, at least part of the lateral side portion 418, at least part of the heel portion 412, at least part of the sole portion 420, and at least part of the instep portion 424 of the liner 50 are compressible, thermoformable and thermoexpandable, and at least part of the toe covering portion 422 of the liner 50 is non-thermoformable. As such, in this embodiment, the liner 50 may comprise thermoformable, thermoexpandable portions and non-thermoformable, non-thermoexpandable portions. More particularly, in this embodiment, some of the thermoformable, thermoexpandable portions of the liner 50 are configured to underly respective thermoformable portions of the shell 30 such that thermoformable portions of the shell 30 (e.g. lateral side portion 68, the medial side portion 66, the heel portion 62, etc.) overly respective thermoformable portions of the liner 50 (e.g. the medial side portion 416, the lateral side portion 418, the heel portion 412, etc.).
Practically, as shown in
The liner 50 may comprise a compressible material to ensure a better fit of the skate 10 with the goalie foot 11 while increasing comfort. Specifically, the compressible material may be a thermoformable material such that the liner 50 can be heated to the pre-determined temperature at which the original shape of the liner 50 can be altered into its altered shape and the liner 50 can keep its altered shape after cooling down. More specifically, the compressible thermoformable material may be a thermoexpandable material such that the compressible material expands when the liner 50 is heated to the pre-determined temperature.
The pre-determined temperature of the compressible thermoformable thermoexpandable material of the liner 50 may have any suitable value compared to the predetermined temperature of the synthetic materials 72, 74 of the shell 30. For example, in some embodiments, the pre-determined temperature of the material of the liner 50 may be the same as the predetermined temperature of the synthetic materials 72, 74 of the shell 30, while in some embodiments the pre-determined temperature of the material of the liner 50 may be lower than the predetermined temperature of the synthetic materials 72, 74 of the shell 30 (e.g., by at least 5° C., by at least 10° C., by at least 20° C., by at least 30° C.), while in some embodiments the pre-determined temperature of the material of the liner 50 may be higher than the predetermined temperature of the synthetic materials 72, 74 of the shell 30 (e.g., by at least 5° C., by at least 10° C., by at least 20° C., by at least 30° C.).
In this embodiment, the liner 50 comprises a plurality of pieces that are affixed (e.g., stitched) to one another. In variants, however, the liner 50 may be a one-piece liner.
In this embodiment, the plurality of pieces of the liner 50 define a plurality of zones 701-70z having different mechanical properties to increase comfort over pre-determined area of the goalie foot 11 and increase comfort over some areas of the goalie foot 11. Each one of the zones 701-70z may comprise a respective one of materials 3401-340M. The materials 3401-340M may differ from one zone to another, and the different materials 3401-340M may be connected and affixed to one another by being fastened to one another, e.g., by stitching. For instance, some of the materials 3401-340M may be compressible, thermoformable and/or thermoexpandable, while some of the materials 3401-340M may be non-thermoformable and/or non-thermoexpandable, such that some of the zones 701-70z may be compressible, thermoformable and/or thermoexpandable, while some of the zones 701-70z may be non-thermoformable and/or non-thermoexpandable.
Thermoformability (i.e., a degree of ease with which that portion can be thermoformed, higher thermoformability entailing that less energy is needed to achieve a given level of deformation or more deformation is achieved with a given level of energy) of the materials 3401-340M of each one of the zones 701-70z may also be different. For instance, in some embodiments, thermoformabilities of the different materials 3401-340M of zones 701-70z may vary. For example, thermoformabilities of respective ones of the materials 3401-340M of the respective ones of the zones 701-70z corresponding to the medial side portion 416 and the lateral side portion 418 of the liner 50 may be greater than a thermoformability of the materials 3401-340M of the respective ones of the zones 701-70z corresponding to the heel portion 412 of the liner 50.
Mechanical properties of the materials 3401-340M of each one of the zones 701-70z may also be different. For instance, in some embodiments, rigidities of the respective compressible materials 3401-340M of zones 701-70z may vary, and in some embodiments, a ratio of the rigidity (i.e., modulus of elasticity or Young's modulus) of the compressible material 3401 of a given one of the zones 701-70z (e.g., spanning at least part of the sole portion 420 for facing the plantar surface PS of the goalie 12 and/or the toe covering portion 422) over the rigidity of the compressible material 340j of another one of the zones 701-70z (e.g., spanning at least part of the medial side portion 416 for facing the medial side MS of the goalie's foot 11, a lateral side portion 418, the heel portion 412, the ankle portion 414, and/or the tongue 34) is at least 2, in some embodiments at least 5, in some embodiments at least 10, in some embodiments at least 15, in some embodiments at least 17, and in some embodiments even more (e.g., at least 20). In some embodiments, a density of the compressible materials 3401-340M of zones 701-70z may be different, and in some embodiments, a ratio of the density of the compressible material 3401 of a given one of the zones 701-70z (e.g., spanning at least part of the sole portion 420 for facing the plantar surface PS of the goalie 12 and/or the toe covering portion 422) over the density of the compressible material 340j of another one of the zones 701-70z (e.g., spanning at least part of the medial side portion 416 for facing the medial side MS of the goalie's foot 11, a lateral side portion 418, the heel portion 412, the ankle portion 414, and/or the tongue 34) is at least 2, in some embodiments at least 5, in some embodiments at least 10, in some embodiments at least 15, in some embodiments at least 16, and in some embodiments even more (e.g., at least 20).
Any suitably material may be used in the liner 50. In this embodiment, the materials 3401-340M may be polymers. More specifically, the materials 3401-340M comprise polymeric foams. More specifically, the compressible materials 3401-340M may be closed cell chemically cross-linked foams which have relatively high levels of cross-linking (e.g. at least 70%, at least 75%, at least 80%) and may provide increased thermo-moulding and thermo-forming capabilities. During manufacturing, the materials 3401-340M may be pre-heated and placed in a cold mold under pressure, such that the materials 3401-340M have increased deformation capabilities. The materials 3401-340M of the liner 50 may include polyethylene foam, ethyl-vinyl-acetate copolymers, blended copolymers, vinyl-nitrile foam, Poron, Ultrastop.
The footbed 38 may be mounted inside the liner 50 and comprises an upper surface 106 for receiving the plantar surface PS of the goalie's foot 11 and a wall 108 projecting upwardly from the upper surface 106 to partially cup the heel HL and extend up to a medial line of the goalie's foot 11. The insole may have an upper surface 25 for facing the plantar surface PS of the goalie's foot 11 and a lower surface 23 facing a sole portion of the liner 50.
The outsole 42 is affixed to an underside of the shell 30 for forming the skate boot 22. The outsole 42 comprises a rigid material for imparting rigidity to the outsole 42. More particularly, in this embodiment, the rigid material of the outsole 42 comprises a composite material. For example, the composite material may be a fiber-matrix composite material that comprises a matrix in which fibers are embedded. The matrix may include any suitable polymeric resin, such as a thermosetting polymeric material (e.g., polyester, vinyl ester, vinyl ether, polyurethane, epoxy, cyanate ester, etc.), a thermoplastic polymeric material (e.g., polyethylene, polypropylene, acrylic resin, polyether ether ketone, polyethylene terephthalate, polyvinyl chloride, polymethyl methacrylate, polycarbonate, acrylonitrile butadiene styrene, nylon, polyimide, polysulfone, polyamide-imide, self-reinforcing polyphenylene, etc.), or a hybrid thermosetting-thermoplastic polymeric material. The fibers may be made of any suitable material such as carbon fibers, polymeric fibers such as aramid fibers, boron fibers, glass fibers, ceramic fibers, etc. In other embodiments, the rigid material may comprise any other suitable material (e.g., nylon, polycarbonate materials, polyurethane, thermoplastics, thermosetting resins, reinforced thermoplastics, reinforced thermosetting resins, polyethylene, polypropylene, high density polyethylene).
The tongue 34 extends upwardly and rearwardly from the toe-covering portion 422 of the liner 50 for overlapping the top surface TS of the goalie's foot 11. In this embodiment, with additional reference to
The core 140 comprises one or more materials suitable for providing additional rigidity to the tongue 34. For instance, in this embodiment, the core 140 comprises a padding reinforced with a rigid insert. The rigid insert of the core 140 may comprise any suitable material to provide additional rigidity to the tongue 34. For example, the rigid insert may comprise a plastic material (e.g., nylon) and/or a composite material (e.g., carbon fiber). The rigid insert may comprise any other suitable material in other embodiments.
The padding member 142 is configured to surround the core 140 and is affixed thereto (e.g., via stitching). The padding member 142 comprises a material 148 suitable for absorbing impacts. For instance, in this embodiment, the material 148 comprises felt. In other embodiments, the material 148 of the padding member 142 may comprise a foam material, a fibrous material, a non-woven material, a laminate material (e.g., foam “sandwiched” between layers of textile) or any other suitable material. The material 148 of the padding member 142 may be one of a plurality of materials of the padding member 142. For example, in some cases, the padding member 142 may comprise an additional material (e.g., foam) that is layered on top of the material 148. Moreover, in this embodiment, the padding member 142 comprises a pair of padding elements 1501, 1502 that are affixed to one another to form the padding member 142. In this example, the padding elements 1501, 1502 are lateral and medial padding elements 1501, 1502.
The peripheral member 144 is affixed to the padding member 142 such as to define the periphery of the tongue 34. In this embodiment, the peripheral member 144 comprises a pair of peripheral elements 1521, 1522 that are affixed to one another, and to the padding member 142, to form the peripheral member 144. More particularly, in this embodiment, the peripheral elements 1521, 1522 are lateral and medial peripheral elements 1521, 1522.
The cover member 146 constitutes an esthetic appearance of the front surface of the tongue 32. As such, the cover member 146 may comprise a variety of decorative features such as a textured surface (e.g., ridges, grooves, etc.), a trademark or logo stitched thereto or a section defining a different color. In some embodiments, the decorative features such as the logo may be printed or formed (e.g., embossed) on the cover member 146. In this embodiment, the cover member 146 comprises a plurality of cover elements 1561-156K that are affixed to one another (e.g., via stitching or gluing) in order to form the cover member 146. Moreover, in its assembled state, the cover member 146 defines an opening 154 for exposing the core 140.
In this embodiment, the tongue 34 is configured to be asymmetric. More particularly, the lateral and medial portions 147, 149 of the tongue 34 extend to different heights such that the proximal portion 153 of the tongue 34 is uneven in the height-wise direction of the skate 10. Specifically, the medial portion 149 of the tongue 34 extends higher than the lateral portion 149 of the tongue 34. To that end, the lateral and medial padding elements 1501, 1502 are shaped differently from one another and the lateral and medial peripheral elements 1521. 1522 are shaped differently from one another. Moreover, the cover member 146 is also configured such that its lateral portion is shaped differently from its medial portion. This asymmetric design of the tongue 34 may provide additional padding at a pressure point of the tongue 34 and may minimize interference with the goalie's leg (e.g., in butterfly style).
The skate boot 22 may be constructed in any other suitable way in other embodiments. For example, in other embodiments, various components of the skate boot 22 mentioned above may be configured differently or omitted and/or the skate boot 22 may comprise any other components that may be made of any other suitable materials and/or using any other suitable processes.
With additional reference to
The blade-retaining base 164 is elongated in the longitudinal direction of the blade holder 24 and is configured to retain the blade 26 such that the blade 26 extends along a bottom portion 186 of the blade-retaining base 164 to contact the ice surface. To that end, the blade-retaining base 164 comprises a blade-retention portion 188 to face and retain the blade 26. In this embodiment, the blade-retention portion 188 comprises a recess 190 in which an upper portion of the blade 26 is disposed.
The blade holder 24 can retain the blade 26 in any suitable way. In this embodiment, the blade holder 24 comprises a blade-detachment mechanism 192 such that the blade 26 is selectively detachable and removable from, and attachable to, the blade holder 24 (e.g., when the blade 26 is worn out or otherwise needs to be replaced or removed from the blade holder 24). More particularly, in this embodiment, the blade 26 includes a plurality of projections 194, 196. The blade-detachment mechanism 192 includes an actuator 198 and a biasing element 200 which biases the actuator 198 in a direction towards the front portion 170 of the blade holder 24. In this embodiment, the actuator 198 comprises a trigger. To attach the blade 26 to the blade holder 24, the front projection 194 is first positioned within a hollow space 202 (e.g., a recess or hole) of the blade holder 24. The rear projection 196 can then be pushed upwardly into a hollow space 204 (e.g., a recess or hole) of the blade holder 24, thereby causing the biasing element 200 to bend and the actuator 198 to move in a rearward direction. The rear projection 196 will eventually reach a position which will allow the biasing element 200 to force the actuator 198 towards the front portion 170 of the blade holder 24, thereby locking the blade 26 in place. The blade 26 can then be removed by pushing against a finger-actuating surface 206 of the actuator 198 to release the rear projection 196 from the hollow space 204 of the blade holder 24. Thus, in this embodiment, the blade-detachment mechanism 192 is free of any threaded fastener (e.g., a screw or bolt) to be manipulated to detach and remove the blade 26 from the blade holder 24 or to attach the blade 26 to the blade holder 24. Further information on examples of implementation of the blade-detachment mechanism 192 in some embodiments may be obtained from U.S. Pat. No. 8,454,030 hereby incorporated by reference herein. The blade-detachment mechanism 192 may be configured in any other suitable way in other embodiments.
In this embodiment, the blade-retaining base 164 comprises a plurality of apertures 2081-2084 distributed in the longitudinal direction of the blade holder 24 and extending from the medial side 182 to the lateral side 184 of the blade holder 24. In this example, respective ones of the apertures 2081-2084 differ in size. The apertures 2081-2084 may have any other suitable configuration, or may be omitted, in other embodiments.
The blade-retaining base 164 may be configured in any other suitable way in other embodiments.
The support 168 is configured for supporting the skate boot 22 above the blade-retaining base 164 and transmit forces to and from the blade-retaining base 164 during skating. In this embodiment, the support 168 comprises a front pillar 210 and a rear pillar 212 which extend upwardly from the blade-retaining base 164 towards the skate boot 22. The front pillar 210 extends towards the front portion of the skate boot 22 and the rear pillar 212 extends towards the rear portion 58 of the skate boot 22. The blade-retaining base 164 extends from the front pillar 210 to the rear pillar 212. More particularly, in this embodiment, the blade-retaining base 164 comprises a bridge 214 interconnecting the front and rear pillars 84, 86
The support 168 and the skate boot 22 can be connected to one another (i.e., in opposition to being integrally formed with one another) in any suitable way. In this embodiment, the support 168 is affixed to the skate boot 22. More particularly, in this embodiment, the front and rear pillars 210, 212 are fastened to the skate boot 22 by fasteners (e.g., rivets, screws, bolts). In this example, each of the front and rear pillars 210, 212 comprises a flange 216 including a plurality of apertures 2181-218F to receive respective ones of the fasteners that fasten the blade holder 24 to the skate boot 22. The support 168 may be affixed to the skate boot 22 in any other suitable manner in other embodiments (e.g., by an adhesive).
With additional reference to
The ice-contacting surface 222 of the blade 26 comprises a flat portion 224 having a length LF. The portion of the ice-contacting surface 222 that is not part of the flat portion 215 (i.e., on either side of the flat portion 125) diverges from the ice (e.g., is generally curved away from the ice). The length LF of the flat portion 224 is significant relative to the length LT of the blade 26 as opposed to that of blades of other skates for hockey players other than goalies (i.e., forwards and defensemen). For instance, a ratio LF/LT of the length LF of the flat portion 224 of the blade over the length LT of the blade 26 may be at least 0.6, in some cases at least 0.65, in some cases at least 0.7, in some cases at least 0.75, in some cases at least 0.8, in some cases at least 0.85, and in some cases even more.
The blade 26 also has a width that is significant relative to a width of blades of other skates for hockey players other than goalies. For example, the width of the blade 26 may be at least 3 mm, in some cases at least 4 mm, in some cases at least 5 mm, and in some cases even more.
The blade holder 24 and the blade 26 may be designed to complementarily decrease a weight of the skate 10 while simultaneously increasing its support height HS. For instance, in this embodiment, the blade holder 24 has a relatively large height HH. That is, the height HH of the blade holder 24 is significant in comparison to the blade holder of conventional goalie skates. For example, a ratio HH/HS of the height HH of the blade holder 24 over the support height HS of the skate 10 may be at least 0.7, in some cases at least 0.75, in some cases at least 0.8, in some cases at least 0.85, in some cases at least 0.9, and in some cases even more.
Simultaneously, the blade 26 may have a relatively small height HP. That is, in this embodiment, the height HP of the blade 26 is small in comparison to the blade of conventional goalie skates. For example, a ratio HP/HS of the height HP of the blade 26 over the support height HS of the skate 10 may be at least 0.15, in some cases at least 0.2, in some cases at least 0.25, in some cases at least 0.3 and in some cases even more. Moreover, a ratio HH/HP of the height HH of the blade holder 24 over the height HP of the blade 26 may be at least 3, in some cases at least 3.5, in some cases at least 4, and in some cases even more.
As the blade 26 is typically denser than the blade holder 24, the increased height of the blade holder 24 and the decreased height of the blade 26 may cause a reduction in the weight of the skate 10. Moreover, the resulting increased support height HS also may also allow an increase in the maximum angle of attack θA of the skate 10.
The goalie skate 10 may be implemented in any other suitable way in other embodiments.
For instance, in a variant, the skate boot 22 may not comprise any lace members and the eyelets 461-46E may extend directly through the shell 30 and the liner 50 via the apertures 48. The skate boot 22 may be free of a toe cap, such that an external surface of the toe covering portion 32 of the shell 30 may define a frontmost surface of the skate boot and define an external profile of a toe area 31 of the skate boot 22.
For instance, in a variant, the blade holder 24 may retain the blade 26 in any other suitable way. For instance, instead of being selectively detachable and removable from and attachable to the blade holder 24, in other embodiments, the blade 26 may be permanently affixed to the blade holder 24 (i.e., not intended to be detached and removed from the blade holder 24). As an example, in some embodiments, as shown in
The blade 26 may be implemented in any other suitable way in other embodiments. For example, in some embodiments, as shown in
In another variant, as shown in
The toe cap 32 may comprise a synthetic material 105 that imparts stiffness to the toe cap 32. For instance, in various embodiments, the synthetic material 105 of the toe cap 32 may comprise nylon, polycarbonate materials (e.g., Lexan®), polyurethane, thermoplastics, thermosetting resins, reinforced thermoplastics, reinforced thermosetting resins, polyethylene, polypropylene, high density polyethylene or any other suitable material. In some cases, the synthetic material 105 of the toe cap 140 may be a composite material comprising thermoset material, thermoplastic material, carbon fibers and/or fiberglass fibers. For example, the composite material may be a fiber-matrix composite material that comprises a matrix in which fibers are embedded. The matrix may include any suitable polymeric resin, such as a thermosetting polymeric material (e.g., polyester, vinyl ester, vinyl ether, polyurethane, epoxy, cyanate ester, etc.), a thermoplastic polymeric material (e.g., polyethylene, polyurethane, polypropylene, acrylic resin, polyether ether ketone, polyethylene terephthalate, polyvinyl chloride, polymethyl methacrylate, polycarbonate, acrylonitrile butadiene styrene, nylon, polyimide, polysulfone, polyamide-imide, self-reinforcing polyphenylene, etc.), or a hybrid thermosetting-thermoplastic polymeric material. The fibers may be made of any suitable material such as carbon fibers, polymeric fibers such as aramid fibers, boron fibers, glass fibers, ceramic fibers, etc.
The synthetic material 105 of the toe cap 32 may be relatively stiff. For example, a stiffness of the synthetic material 105 of the toe cap 32 may be related to a modulus of elasticity (i.e., Young's modulus) of the synthetic material 105. For example, in this embodiment, the modulus of the synthetic material 105 of the toe cap 32 may be at least 0.5 GPa, in some cases at least 2 GPa, in some cases at least 3 GPa, in some cases at least 4 GPa, and in some cases even more.
The modulus of elasticity of the synthetic material 105 of the toe cap 32 may have any other suitable value in other embodiments.
As the skate 10 is cowlingless, in this embodiment, the toe cap 32 is reinforced. That is, in view of an absence of a cowling in the skate 10, the toe cap 32 is reinforced to properly protect the goalie's toes. The toe cap 32 is thus strengthened to take into account the absence of a cowling in the skate 10. For instance, the toe cap 32 may have a material composition (e.g., a stronger material or an additional material) and/or a shape (e.g., a thicker area) that makes the toe cap 32 more protective.
In this embodiment, the toe cap 32 is reinforced via an increase of a thickness Tc of the toe cap 32. For instance, the thickness Tc of the toe cap 32 may be greater than that of a toe cap 532 of the conventional goalie skate 510. For example, in some embodiments, the thickness Tc of the toe cap 32 may be at least 5 mm, in some cases at least 6 mm, in some cases at least 7 mm, and in some cases even more. The thickness Tc of the toe cap 32 may have any other suitable value in other embodiments.
Also, in this embodiment, the toe cap 32 comprises a reinforcement 132. In this example, the reinforcement 132 is disposed on the outer surface 112 of the toe cap 32. The reinforcement 132 may be provided on one or more of the lateral side portion 118, the medial side portion 120, the end portion 122 and the upper portion 124 of the toe cap 32.
In this example, the reinforcement 132 comprises a plurality of reinforcing elements 1331-133G distributed on the toe cap 32. More particularly, in this embodiment, each of the reinforcements 1331-133G extends along a front-to-rear direction of the toe cap 32 (i.e., generally along a direction of the longitudinal axis 110). In other embodiments, the reinforcements 1331-133G may extend in any other direction (e.g., a direction transversal to the longitudinal axis 110). In this case, each of the reinforcements 1331-133G comprises a projection 134 projecting on the outer surface 112 of the toe cap 132. For example, the projection 134 may be a rib, a ridge, or any other suitable projection. The reinforcements 1331-133G may form corrugations on the outer surface 112 of the toe cap 32.
The reinforcement 132 may be implemented in any other suitable way in other embodiments. For example, in other embodiments, as shown in
In another variant, the toe cap 32 of the skate boot 22 may be configured such that a first part of the toe cap 32 that is more likely to be impacted by a puck during play may be more protective (e.g., stiffer, harder) than a second part of the toe cap 32 that is less likely to be impacted by a puck during play.
For instance, a given one of the lateral side portion 118, the medial side portion 120, the end portion 122 and the upper portion 124 of the toe cap 32 may be configured to be stiffer than another one of the lateral side portion 118, the medial side portion 120, the end portion 122 and the upper portion 124 of the toe cap 32. For example, a ratio of a stiffness of the lateral side portion 118 of the toe cap 32 over a stiffness of the medial side portion 120 of the toe cap 32 may be, in some cases, at least 1.1, in some cases at least 1.2, in some cases at least 1.3, in some cases at least 1.4, in some cases at least 1.5, in some cases at least 1.6, in some cases at least 1.7, in some cases at least 1.8, in some cases at least 1.9, in some cases at least 2 and in some cases even more.
To provide a part of the toe cap 32 with more stiffness than another part of the toe cap 32, the modulus of elasticity of certain parts of the toe cap 32 may vary. For instance, in some cases, the modulus of elasticity of a given one of the lateral side portion 118, the medial side portion 120, the end portion 122 and the upper portion 124 of the toe cap 32 may be greater than the modulus of elasticity of another one of the lateral side portion 118, the medial side portion 120, the end portion 122 and the upper portion 124 of the toe cap 32. For instance, in some examples of implementation, the modulus of elasticity of the lateral side portion 118 of the toe cap 32 may be greater than the modulus of elasticity of the medial side portion 120 of the toe cap 32. In some examples of implementation, the modulus of elasticity of the end portion 122 of the toe cap 32 may be greater than the modulus of elasticity of the medial side portion 120 of the toe cap 32. This may provide additional reinforcement at the lateral side portion 118 and/or the end portion 122 of the toe cap 32 where impact by a puck may be more likely to occur during play.
In some cases, the modulus of elasticity of a given one of the lateral side portion 118, the medial side portion 120, the end portion 122 and the upper portion 124 of the toe cap 32 may vary. For instance, in one example of implementation, as shown in
To implement different stiffnesses at different parts of the toe cap 32, the toe cap 32 may comprise a plurality of materials having different properties. For example, with additional reference to
In one example of implementation, with additional reference to
In another example of implementation, in order to make a part of the toe cap 32 stiffer, the toe cap 32 may be configured such that its thickness Tc varies. For example, a given one of the lateral side portion 118, the medial side portion 120, the end portion 122 and the upper portion 124 of the toe cap 32 may have a thickness that is greater than a thickness of another one of the lateral side portion 118, the medial side portion 120, the end portion 122 and the upper portion 124 of the toe cap 32. This may impart reinforcement at selected portion(s) of the toe cap 32 that are more likely to be impacted during play.
In one example of implementation, the bottom region 90 of the toe cap 32 may have a thickness that is greater than a remainder of the toe cap 90. As another example, a thickness of the lateral side portion 118 of the toe cap 32 may be greater than a thickness of the medial side portion 120 of the toe cap 32. In some cases, a thickness of the end portion 122 of the toe cap 32 may be greater than the thickness of the medial side portion 120 of the toe cap 32. The thickness of the toe cap 32 may vary in any other suitable way.
Furthermore, in some embodiments, the thickness of a given one of the lateral side portion 118, the medial side portion 120, the end portion 122 and the upper portion 124 of the toe cap 32 may vary. For instance, a thickness TC1 of a first area 128 of the lateral side portion 118 may be greater than a thickness TC2 of a second area 130 of the lateral side portion 118. A ratio of the thickness TC1 of the first area 128 over the thickness TC2 of the second area 130 may be at least 1.1, in some cases at least 1.2, in some cases at least 1.3, and in some cases even more. In this example, the first area 128 is lower than the second area 130 in the height-wise direction of the skate 10 such that a lower area of the lateral side portion 118 is thicker than an upper area of the lateral side portion 118.
In one example of implementation, the different thicknesses at different parts of the toe cap 32 may be provided through the second synthetic material 115 of the toe cap 32 when it is used as an overlay that is disposed over the first synthetic material 105 of the toe cap 32. For instance, the second synthetic material 115 of the toe cap 32 may have a thickness different from a thickness of the first synthetic material 105 of the toe cap 32. For example, the thickness of the second synthetic material 115 of the toe cap 32 may be less than the thickness of the first synthetic material 105 of the toe cap 32.
Although in embodiments considered above the skate 10 is designed specifically for goalkeeping by the goalie, as opposed to other skates for hockey players other than goalies (i.e., forwards and defensemen), in other embodiments, the skate 10 may be a player skate for the user who is a forward or defenseman, as shown in
Although in embodiments considered above the skate 10 is designed for playing ice hockey on the skating surface 14 which is ice, in other embodiments, the skate 10 may be constructed using principles described herein for playing roller hockey or another type of hockey (e.g., field or street hockey) on the skating surface 14 which is a dry skating surface (e.g., a polymeric, concrete, wooden, or turf skating surface or any other dry skating surface on which roller hockey or field or street hockey is played). Thus, in other embodiments, instead of comprising the blade 26, the skating element may comprise a set of wheels to roll on the dry skating surface 14.
While in embodiments considered above the footwear 10 is a skate, in other embodiments, the footwear 10 may be any other suitable type of footwear. For example, as shown in
In some embodiments, any feature of any embodiment described herein may be combined with any feature of any other embodiment described herein.
Certain additional elements that may be needed for operation of certain embodiments have not been described or illustrated as they are assumed to be within the purview of those of ordinary skill in the art. Moreover, certain embodiments may be free of, may lack and/or may function without any element that is not specifically disclosed herein.
In case of any discrepancy, inconsistency, or other difference between terms used herein and terms used in any document incorporated by reference herein, meanings of the terms used herein are to prevail and be used.
Although various embodiments have been illustrated, this was for purposes of description, but should not be limiting. Various modifications will become apparent to those skilled in the art and are within the scope of this disclosure.
Number | Date | Country | |
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62976392 | Feb 2020 | US |