The present invention relates to an adjustable helmet system assembly and a method for fitting the adjustable helmet system assembly to a wearer's head. The adjustable helmet system assembly includes a locking mechanism that allows the front shell to be movable or slidable to a rear shell to adjust to a desired length. Furthermore, the adjustable helmet system assembly may incorporate crumple zones or crumple features that allow the adjustable helmet system assembly to undergo structural changes in a pre-determined fashion so that the structural changes are recoverable but yet provide protection.
Adjustable helmets have been known in the art for years, and used in different applications such as sports, firefighting, construction work, and the military. In particular, many of these adjustable helmets allow the wearer to adjust the helmet size to fit a particular head. For example, helmet adjustment mechanisms have consisted of a stud and notch or a headband with a rack and pinion adjusting mechanism, and/or by loosening and tightening screws.
Although, these and other conventional adjustment mechanisms have worked well, they have failed in a number of areas. For instance, loosening and tightening screws increase the length of adjustment time, require that the user carries tools and do not allow the helmet wearer to adjust the size of the helmet while wearing the helmet and/or adjust the helmet quickly. Accordingly, the helmet wearer must remove the helmet, adjust the helmet, and retry the helmet size multiple times before a proper fit can be established.
Also, in many other adjustable helmet designs, the adjustment does not allow the comfort liner padding to be properly fitted to the head of the user. Comfort liner padding assemblies are usually provided in standard sizes (e.g., small to xlarge) and are affixed to the helmet. The comfort liner padding assemblies are not adjustable, these variances create significant difficulties in having the helmet sized correctly with the comfort liner pad system. The comfort liner pad system may be improperly positioned, too large or too small preventing or decreasing the safety of its intended function.
Furthermore, the previous adjustable helmet designs are usually manufactured from rigid or substantially rigid polymers. These rigid polymers do not perform as intended because they lack the ability absorb a significant amount of energy after an impact and/or manufacturers tend to increase the relative thickness of the material. Using such materials or increased thicknesses, allows the impact force to be transferred to the wearer's head, thus causing severe traumatic brain injuries or result in adding unnecessary weight/imbalance resulting in disproportionate measurements for optimal muscle control. Accordingly, the impact force can also be transferred to other portions of the helmet, potentially causing premature disengagement of the helmet shells and exposing the wearer to further traumatic brain injuries.
It is therefore an object of the present invention to provide an adjustable helmet system with improved locking mechanisms and crumple zones that can overcome some of the disadvantages of the previous helmet designs. The adjustable helmet system offers a two-piece helmet that allows adjustment of the helmet quickly and efficiently without the need for tools, allow the impact mitigation layers and/or comfort liners pad systems to be easily disconnected and/or adjusted within the helmet, and/or provide for controlled localized deflection and/or deformation through the incorporation of structural features that promote the absorption of energy from an impact resulting in reduced forces experienced by the wearer and other portions of the helmet.
Another practical advantage with this adjustable helmet system that also improves safety by enabling a better customizing to fit different head shapes such as oval, oblong and round, not just adapt to sizes. Parents will be able to customize the helmets as their children grow, thus avoiding the understandable but dangerous habit of buying large so that the child will ‘grow into it’. A frontal fall in a helmet that is too large, forces the helmet backwards and can force the back of the helmet into the neck at the base of the skull, at the anatomical area of the brain stem, with tragic results often worse than if a helmet had not been worn at all.
In one embodiment, the adjustable helmet system may comprise a locking system. The adjustable helmet system comprises a first (or front) shell; a second (or back) shell, the second shell being slidably attached to the first shell; a locking mechanism, the locking mechanism being movable between a first unlocked position which allows the first and second shells to slide relative to each other and a second locked position which inhibits the first and second shells from sliding relative to each other.
In one embodiment, an adjustable helmet system may comprise a helmet clamp locking mechanism assembly. The adjustable helmet system may comprise a front shell, a back shell, and a clamp locking assembly. The clamp locking assembly will facilitate easy no-tool detachment and securement by using a lever function. To adjust a representative helmet, the user may lift the clamp body allowing the clamp post to place a downward compressive force against the clamp tongue thereby releasing the front and back shells to move relative to each other. Conversely, to secure or lock the clamp locking assembly, the user will push the clamp body down within the cavity allowing the base plate coupled to the clamp post to place an upward compressive force to sandwich the front and back shells and prevent movement and have the plurality of teeth engage with the plurality of recesses. Alternatively, the helmet may further comprise helmet alignment guides. The helmet alignment guides may be strategically placed onto the helmet and can be placed within any region of the helmet, including frontal, ridge (or top), and/or the sides (right or left). The helmet alignment guides will help align the front and back shells in the proper position during adjustment.
In one embodiment, the adjustable helmet system may comprise a clamp locking mechanism assembly that may be modular and coupled to any commercially available helmet (retrofitting a commercially available helmet). The clamp locking mechanism assembly may comprise at least one of a clamp housing, a clamp body, clamp post, a base plate, a clamp tongue and/or any combination thereof. The clamp housing has a top surface and a bottom surface, at least a portion of the top surface having a cavity extending from the top surface towards the bottom surface, the cavity sized and configured to receive the clamp body, the cavity having an aperture, the aperture extends through the top surface to the bottom surface, the aperture is sized and configured to receive a clamp post, the clamp post is pivotally coupled to the clamp body; the clamp housing bottom surface having a plurality of teeth, the plurality of teeth extending outwardly from the bottom surface, the plurality of teeth sized and configured to fit within a plurality of recesses on a clamp tongue. The clamp tongue having a first surface and a second surface, at least a portion of the first surface including the plurality recesses, the plurality of recesses sized and configured to receive the clamp housing plurality of teeth, the clamp tongue having a channel, the channel extends through the first surface to the second surface, the channel sized and configured to receive the clamp post; the clamp post coupled to a base plate.
In another embodiment, the adjustable helmet system may comprise a clamp locking mechanism that may be integrated within a helmet. The adjustable helmet system comprises a helmet and a clamp locking mechanism assembly. The clamp locking mechanism assembly may comprise at least one of a clamp housing, a clamp body, clamp post, a base plate, a clamp tongue, a spring and/or any combination thereof. The helmet having a front shell, and a back shell, at least a portion of the front or back shell having one or more alignment guides; the front or back shell may have a clamp tongue, the clamp tongue having a longitudinal length that extends outward from the front or back shell, the clamp tongue having a first surface and a second surface, at least a portion of the first surface including a plurality recesses, the plurality of recesses sized and configured to receive a plurality of teeth, the clamp tongue having a channel, the channel extends through the first surface to the second surface, the channel sized and configured to receive the clamp post; the clamp post coupled to the base plate; at least a portion of the back or front shell having first surface and a second surface, the front or back shell first surface having a shell recess, the shell recess being sized and configured to fit a clamp housing, the shell recess having an shell aperture extends there through, the shell aperture being sized and configured to receive the clamp post; at least a portion of the front or back shell second surface having a plurality of teeth, the plurality of teeth sized and configured to fit within the plurality of recesses. The clamp housing has a top surface and a bottom surface, at least a portion of the top surface having a cavity extending from the top surface towards the bottom surface, the cavity sized and configured to receive the clamp body, the cavity having an aperture, the aperture extends through the top surface to the bottom surface, the aperture is sized and configured to receive a clamp post, the clamp post is pivotally coupled to the clamp body.
In another embodiment, the adjustable helmet system may comprise an alternate embodiment of a clamp locking mechanism that may be integrated within a helmet. The adjustable helmet system may comprise a front shell (or first shell), and back shell (or second shell), and a locking mechanism. The locking mechanism including a clamp assembly, a plurality of teeth, at least a portion of the plurality of teeth sized and configured to fit within a portion of a plurality of recesses, the plurality of teeth disposed on the first or second shell, a plurality recesses, at least a portion of the plurality of recesses are sized and configured to receive the plurality of teeth, the plurality of recesses disposed on the first or second shell, the clamp assembly being movable between a unlocked position that allows the plurality of teeth and the plurality of recesses to disengage and allow the first and second shells to slide relative to each other, and a locked position that allows a portion of the plurality of teeth and a portion of the plurality of recesses to engage that inhibits the first and second shells from sliding relative to each other.
In another embodiment, the adjustable helmet system may comprise crumple zones. The adjustable helmet system may comprise a first shell, a second shell, the second shell being slidably attached to the first shell, a locking mechanism, and/or at least one opening. The locking mechanism being movable between an unlocked position which allows the first and second shells to slide relative to each other and a locked position which prohibits the first and second shells from sliding relative to each other. The at least one opening placed adjacent to, in proximity to or within impact zones of the first or second shells resulting in local deformation and reducing the translation of impact forces from a portion of the first shell and/or second shells. The impact zones are zones of a wearer's head that may see higher than normal frequency of impacts and/or magnitude of impacts. The impact zones are within the occipital region, temporal region, parietal region, orbit region, the frontal region, the mandible (front, right and/or left side) region, the maxilla region, the nasal region, zygomatic region, the ethmoid region, the lacrimal region, the sphenoid region and/or any combination thereof.
In another embodiment, the adjustable helmet system may further comprise at least one impact mitigation layer. The adjustable helmet system may comprise a front shell (or first shell), a back shell (or second shell), a locking mechanism, and at least one impact mitigation layer. The at least one impact mitigation layer may include one or more impact structures. The impact structures may comprise at least a portion of liner pod assemblies, at least a portion of filaments, at least a portion of laterally supported filaments (LSFs), at least a portion of auxetic structures, TPU (not shown), inflatable bladders (not shown), shock bonnets (not shown), at least one foam layer (not shown), at least a portion of air bladders, and/or any combination thereof. The front shell and/or back shell may have an external surface and an internal surface, the at least one impact mitigation layer may be coupled to the internal surface of the front and/or back shells. Coupling may be fixed or removably coupled.
In another embodiment, the adjustable helmet system may further comprise at least one supplemental layer. The adjustable helmet system may comprise a front shell (or first shell), a back shell (or second shell), a locking mechanism, at least one impact mitigation layer and at least one supplemental layer. The front shell and/or back shells may have an external surface and an internal surface, the supplemental layer may be positioned proximate to the impact mitigation layer and/or may be positioned proximate to the internal surface of the front and/or back shells. The supplemental layer may include a plurality of liner pod assemblies or comfort liners that are desirably positioned around various locations of the wearer's head, covering much of the area inner surface of the helmet. The liner pod assemblies may include a pod and a connection mechanism. Such plurality of liner pod assemblies may be positioned within and/or proximate to one or more of the following regions: a frontal assembly (or front), an occipital assembly (or lower-back), a mid-back assembly, a parietal assembly (or midline), and a temporal assembly (right and/or left sides), and/or any combination(s) thereof. At least a portion of the liner pod assemblies may be removably coupled to the helmet and/or any combination thereof to increase energy absorption, mitigation of linear or angular impact forces, enhance fit and comfort.
In another embodiment, the adjustable helmet system may comprise a cam locking mechanism assembly. The cam locking assembly will facilitate easy no-tool detachment and securement by using a rotational function. To adjust a representative helmet, the user may rotate the cam body counter-clock position to allowing the cam post to place a downward compressive force against the clamp tongue thereby releasing the front and back shells to move relative to each other. Conversely, to secure or lock the cam locking assembly, the user will rotate the cam body to a clock-wise position to lift the base plate that coupled to the clamp post and place an upward compressive force to sandwich the front and back shells and prevent movement and have the plurality of teeth engage with the plurality of recesses. Alternatively, the helmet may further comprise helmet alignment guides. The helmet alignment guides may be strategically placed onto the helmet and can be placed within any region of the helmet, including frontal, ridge (or top), and/or the sides (right or left). The helmet alignment guides will help align the front and back shells in the proper position during adjustment.
In one exemplary embodiment, at least one commercially available (CA) may be retrofitted to have one or more crumple zones. The at least one CA helmet may comprise one or more protrusions that may be modified or replaced with impact mitigation structures or impact mitigation features to create a crumple zone. The one or more protrusion may be modified with impact mitigation features that allow the collapsibility, compressibility and/or impact absorption, the impact mitigation features comprising a plurality of perforations, the plurality of perforations may include a variety of different shapes and/or configurations to enhance collapsibility, compressibility and/or impact absorption. Such shapes and/or configurations may include relief cuts, slits, holes, openings, herringbone shape, zig-zag shapes, chevron shapes, auxetic shapes, reentrant shapes, and/or any combination thereof. In another exemplary embodiment, the one or more protrusion may incorporate at least one impact mitigation structure over the shell protrusions. Additionally, the one or more shell protrusions may be replaced with at least one impact mitigation structure. The at least one CA helmet shell protrusions may have at least one impact mitigation structure disposed within a cavity of the one or more protrusions. Alternatively, the at least one impact mitigation structure can be positioned between the at least two protrusions.
The various improved locking mechanisms provided herein are depicted with respect to hockey, but it should be understood that the various devices and systems may be suitable for use in protecting players in various other athletic sports, as well as law enforcement, military and/or informal training session uses. For example, the embodiments of the present invention may be suitable for use by individuals engaged in athletic activities such as baseball, bowling, boxing, cricket, cycling, motorcycling, golf, hockey, lacrosse, soccer, rowing, rugby, running, skating, skateboarding, skiing, snowboarding, surfing, swimming, table tennis, tennis, or volleyball, or during training sessions related thereto.
Accordingly, the adjustable helmet system with improved locking mechanisms provide significant benefits that can overcome some of the disadvantages of the previous adjustable helmet designs. The adjustable helmet system offers a two-piece shelled helmet that allows adjustment and/or locking of the helmet quickly and efficiently without the need for tools, it allows the locking and/or unlocking of the helmet with one handed function, it can allow for the impact mitigation layers and/or comfort liners pad systems to be easily disconnected and/or adjusted within the helmet, and/or provide for localized deflection through the incorporation of structural features that promote the absorption of energy from the impact in more predictable ways. The adjustability is key should the players or wearers decide to improve their impact protection during play, and exchange at least a portion of the impact mitigation layer and/or at least a portion of the supplemental layer based on the frequency or severity of impact. Then, the adjustable helmet system may be properly adjusted to accommodate the comfort and sizing of the specific wearer.
Adjustable Helmet Assembly
In one exemplary embodiment, the adjustable helmet assembly 101 comprises an adjustable helmet system 102, an impact mitigation layer 103, an inner shell 104. The adjustable helmet assembly 101 may further comprise a supplemental layer 105. The impact mitigation layer 103 nests within the adjustable helmet system 102, and the impact mitigation layer 103 disposed between the adjustable helmet system 102 and the inner shell 104. The supplemental layer 105 nests within the inner shell 104, where an exterior surface of the supplemental layer 105 is adjacent to an interior surface of the inner shell 104.
Adjustable Helmet System
The locking mechanism 208 may be a modular assembly and/or integrated within the first 206 and/or second 202 shells. In one embodiment, the locking mechanism comprises a clamp assembly, a plurality of teeth, at least a portion of the plurality of teeth sized and configured to fit within a portion of a plurality of recesses, the plurality of teeth disposed on the first or second shell, a plurality of recesses, at least a portion of the plurality of recesses are sized and configured to receive the plurality of teeth, the plurality of recesses disposed on the first or second shell, the clamp assembly being movable between an unlocked position that allows the plurality of teeth and the plurality of recesses to disengage and allows the first and second shells to slide relative to each other, and a locked position that allows the a portion of the plurality of teeth and a portion of the plurality of recesses to engage and inhibits the first and second shells from sliding relative to each other.
The first 206 and/or second shell 202 may be manufactured from a relatively rigid material, such as polyethylene, nylon, polycarbonate materials, acrylonitrile Butadiene Styrene (ABS), polyester resin with fiberglass, thermosetting plastics, and/or any other rigid thermoplastic materials. Alternately, the first and/or second shell may be manufactured from a relatively deformable material, such as polyurethane and/or high-density polyethylene, where such material allows local deformation upon impact.
The top portion 303 of the first or front shell 301 may be positioned on a portion of a central ridge of a wearer's head and covering a portion of the parietal region of a wearers head as shown as
The side portions 304 of the first or front shell 301 may be positioned within or near the temporal regions of the wearer, covering the right and left sides of the wearer and/or at least a portion of the wearer's mandible as shown in
Furthermore, the recess external surface 415 of the top portion 411 of the second or back shell 401 may further comprise a clamp post 420. The clamp post 420 being a solid or hollow longitudinal member that perpendicularly extends from the recess external surface 415. The clamp post 420 being a longitudinal member having a diameter, a height, a first end and a second end. The first or second end being coupled to the recess external surface 415, and the first or second having a planar surface, the planar surface abutting or mating within a planar surface of the clamp body. The recess 413 comprising a cross-sectional shape and a height 421. The recess 413 cross-sectional shape is configured to match or substantially match the clamp body (not shown) of the locking mechanism 404. The recess height 421 being equal to a clamp body width to provide a flush surface, or the recess height being greater than the clamp body width to allow the clamp body to be slightly recessed. Accordingly, the top portion 411 of the second or back shell 401 comprises one or more openings 402 giving rise to one or more crumple zones 407.
The side portions 419 of the second or back shell 401 may be positioned within or near the temporal regions of the wearer, covering the right and left sides of the wearer and/or at least a portion of the wearer's mandible as shown in
Alternatively, the protrusion alignment channels or the alignment guides 403 and the alignment protrusions 319 may be switched. For example, the protrusion alignment channels 403 may be disposed on the first shell 301 rather than the second shell 401. Accordingly, the alignment protrusions 319 may be disposed on the second shell 401 rather than the first shell 301. The helmet alignment guides or alignment protrusion channels may be strategically placed onto or within any region of the helmet, including frontal, ridge (or top), and/or the sides (right or left). The helmet alignment guides will help align the front and back shells in the proper position during adjustment. The helmet alignment guides comprise alignment protrusions and alignment guide channels. The alignment protrusions may be disposed onto a least a portion of the first or second shell, the alignment protrusions being sized and configured to fit within the alignment guide channels. The alignment guide channels may be disposed onto a least a portion of the first or second shell, the alignment guide channels having a translation length, the translation length minimizing the total adjustment size of the helmet. The alignment guide channels being sized and configured to receive the alignment protrusions. Once the alignment protrusions mate with the alignment guide channels, the helmet may only be adjusted to the designed translation length. The translation length may be anywhere from 0 inches to 6 inches.
Locking Mechanism Assemblies
In one embodiment, an adjustable helmet system may comprise a locking mechanism, the locking mechanism being a clamp locking mechanism assembly 601 (see
Alternatively, the clamp housing 701 (see
Alternatively, the cam tongue 1201 and/or the front or back shells may reverse some of the engagement features. The cam tongue 1201 having a first surface 1202 and a second surface 1203, at least a portion of the first surface 1202 including the plurality teeth, the plurality of teeth sized and configured to fit within a plurality of recesses with a front or back shell top portion second surface, the cam tongue having a channel 1203, the channel 1203 extends through the first surface 1202 to the second surface, the channel 1203 sized and configured to receive the cam post 1401; the channel having a length, the length allowing cam post 1401 to translate along an axis.
Alternatively, the cam housing 1301 and the camp tongue 1201 (see
In another embodiment, the adjustable helmet system may have an alternate embodiment of an integrated locking mechanism. The adjustable helmet comprises a first shell, the first shell having an external surface and an internal surface; a second shell, the second shell being slidably attached to the first shell, the second shell an external surface and an internal surface; and a locking mechanism, the locking mechanism including: a clamp tongue, clamp tongue extending away from the first or second shell, the clamp tongue having a plurality of a plurality recesses, at least a portion of the plurality of recesses are sized and configured to receive a portion of a plurality of teeth; a plurality of teeth, at least a portion of the plurality of teeth sized and configured to fit within a portion of the plurality of recesses, the plurality of teeth disposed on a portion of the first or second shell internal surfaces; and a clamp assembly, the clamp assembly being movable between a unlocked position that disengages the portion of the plurality of teeth from the portion of the plurality of recesses and allow the first and second shells to slide relative to each other, and a locked position that allows the a portion of the plurality of teeth and a portion of the plurality of recesses to engage that inhibits the first and second shells from sliding relative to each other. The adjustable helmet may further comprise a cavity, the cavity being sized and configured to receive the clamp assembly, the cavity being disposed within the first or second shells, the clamp assembly having a top surface and a bottom surface, the clamp assembly top surface being flush or substantially flush with the external surface of the first or second shell.
In another embodiment, the adjustable helmet system may have an alternate embodiment of an integrated locking mechanism. An adjustable helmet comprising: a first shell, the first shell having an external surface and an internal surface; a second shell, the second shell being slidably attached to the first shell, the second shell an external surface and an internal surface; and a locking mechanism, the locking mechanism including; and a clamp assembly, the clamp assembly having a clamp body, the clamp post, and a base plate; a clamp tongue, clamp tongue extending away from the first or second shell, the clamp tongue having a top surface, a bottom surface and a first channel, the clamp tongue top surface having a plurality of a plurality recesses, at least a portion of the plurality of recesses are sized and configured to receive a portion of a plurality of teeth, the channel sized and configured to receive the clamp post; a plurality of teeth, the plurality of teeth disposed on a portion of the first or second shell internal surface, at least a portion of the plurality of teeth sized and configured to fit within a portion of the plurality of recesses, the first or second shell internal surface further including a second channel, the second channel sized and configured to receive the clamp post; a cavity, the cavity being sized and configured to receive the clamp assembly, the cavity being disposed within the first or second shells external surface, the clamp assembly having a top surface and a bottom surface, the clamp assembly top surface being flush or substantially flush with the external surface of the first or second shell, the cavity having an aperture, the aperture sized and configured to receive the clamp post; the base plate coupled to the clamp post, the base plate abuts the bottom surface of the clamp tongue; a clamp assembly, the clamp assembly being movable between a locked position and an unlocked position, the locked position places tension on the clamp post and the base plate to compress the clamp tongue allowing a portion of the plurality of teeth and a portion of the plurality of recesses on the clamp tongue to engage and inhibit the first and second shells from sliding relative to each other, the unlocked position places compression on the clamp post and the base plate to release the clamp tongue allowing the portion of the plurality of teeth and the portion of the plurality of recesses of the clamp tongue to disengage, and allow the first and second shells to slide relative to each other.
Ear Protection and Other Accessories
Openings and Crumple Zones
In one exemplary embodiment, the adjustable helmet assembly may comprise one or more openings that gives rise to one or more crumple zones. Crumple zones are areas of the adjustable helmet assembly that are designed to deform in a controlled manner during an impact. The specifically designed crumple zones would absorb some of the impact force and redistribute the impact force before its transmitted to the wearer. More specifically, there's a given amount of force present during any impact, and the forces are determined by the acceleration and the mass of the wearer or the objects causing the impacts. Therefore, in order for the crumple zones to absorb and redistribute the impact force, it may do this by slowing down the acceleration or by extending the distance over which the adjustable helmet's kinetic energy is transferred out (into potential or thermal energy). The acceleration may be slowed by creating one or more crumple zones around the perimeter of the adjustable helmet, which the crumple zones would take the initial impact, slowing down acceleration by a few tenths of a second to create a drastic reduction in the force involved during an impact. Accordingly, crumple zones may be manufactured and integrated directly into the adjustable helmet and/or be commercially available (CA) helmet may be retrofitted with crumple zones.
The at least one opening 2002, 2003 placed adjacent to, in proximity to or within impact zones and/or crumple zones of the first shell 2004 or second shells 2005 resulting in absorption of the energy from the impact by controlled local deformation and/or reducing the impact forces transferred to the head of the wearer. The impact zones are zones of a wearer's head that may see higher than normal frequency of impacts and/or magnitude of impacts. The impact zones are within the occipital region (lower and mid), temporal region (right and left side), parietal region, orbit region, the frontal region, the mandible (front, right and/or left side) region, the maxilla region, the nasal region, zygomatic region, the ethmoid region, the lacrimal region, the sphenoid region, crown region or top ridge, raised eyebrow region and/or any combination thereof. In addition, the at least one opening may provide ventilation allowing air to circulate around the head of the wearer. The at least one opening may be positioned in plane tangent to the helmet circumference, in a plane perpendicular or substantially perpendicular to the helmet circumference, or in an oblique plane to the helmet plane, in a plane parallel to helmet plane, and/or any combination thereof.
Furthermore, the one or more openings 2002, 2003 may have one or more tabs 2006 disposed within the one or more openings 2002, 2003 to further absorb the impact forces. The one or more tabs 2006 couple the center plate 2007 to the top portion 2008 of the front shell 2004 and/or the back shell 2005. The one or more tabs 2006 may be desirably used to provide a controlled deformation and/or buckling. The one or more tabs 2006 may span the width of the one or more openings 2002, 2003. The one or more tabs 2006 may have a length, width and depth, as well as a cross-sectional shape that facilitates a controlled deformation response by providing some relative resistance. Such cross-sectional shape can vary, and includes square, rectangle, triangle, hexagon, dome or arched cross-sectional shape, and/or any combination thereof. The desired cross-sectional shape would improve on the specific deformation properties that are expected for the adjustable helmet design. The length, width and/or depth of the one or more tabs 2006 may vary to obtain the ideal tab structure that can provide such controlled deformation, and still allow return to its original configuration. Alternatively, different protrusions 2009 may be positioned within the center plate 2007 and/or other locations on the adjustable helmet 2001 that may also further facilitate impact absorption.
Furthermore, the shell protrusions 2102 provide many disadvantages to the player that decides to wear such a CA helmet 2101. The disadvantages provide (1) additional unnecessary weight to the CA helmet; (2) The shell protrusions have cavities that is considered unused real estate; (3) the shell protrusions do not provide any impact protection (see
As a result, the present invention overcomes many of the disadvantages observed with current CA helmets 2101. The present invention relates to various methods, devices and systems to retrofit CA helmets to leverage the existing shell protrusions and its cavities to improve impact performance of the CA helmet 2101. Impact performance may be improved by modifying or retrofitting the shell protrusions 2102 with impact mitigation structures and/or impact mitigation features to create crumple zones.
By leveraging at least one shell protrusion 2102 on the CA helmet 2101, the at least one shell protrusion 2102 may be deformable, bendable, deflectable, collapsible or compressible or buckle, behaving similarly to “crumple zones.” The at least one shell protrusion 2102 may be designed with impact mitigation structures and/or impact mitigation features to essentially convert the at least one shell protrusion to a crumple zone. The crumple zones will be defined as at least one shell protrusion that is converted into an impact structural area located in various regions on the CA helmet that facilitate the management of incident forces on the helmet during play, thus enhancing protection from the localized impact directly to the player's head in a predictable manner. Furthermore, such crumple zones can collapse, deform and/or compress in a predictable way to absorb much of the impact kinetic energy by reducing the initial impact force and redistribute the impact force before it reaches the player's head.
The plurality of perforations may include a variety of different shapes and/or configurations to enhance deformation, collapsibility, compressibility, buckling and/or impact absorption as shown in
Impact Mitigation Layer and Impact Mitigation Structures
In another embodiment, the adjustable helmet system assembly may further comprise an impact mitigation layer. The adjustable helmet system includes a helmet, a locking mechanism, and/or an impact mitigation layer. The helmet may comprise a front shell (or first shell) and a back shell (or second shell), the first or second shell having an external surface and an internal surface. The locking mechanism, being movable between a first unlocked position which allows the first and second shells to slide relative to each other and a second locked position which inhibits the first and second shells from sliding relative to each other. The impact mitigation layer may comprise at least one impact mitigation structure. The impact mitigation layer may further comprise a force distribution layer, the force distribution layer being a relatively rigid or rigid material. The impact mitigation structure may comprise a first portion and a second portion. The first portion and second portion may comprise the same impact mitigation structure or different impact mitigation structures. The impact mitigation layer may be coupled to a first and/or second shell internal surface. Coupling may occur in different regions within the first or second shell and the coupling may comprise heat staking, gluing, mechanical mounting, Velcro, and/or any combination thereof. The impact mitigation structures may comprise at least a portion of filaments (
Furthermore, as disclosed herein, any CA helmet with at least one shell protrusion may be leveraged to create or enhance impact protection by converting the at least one shell protrusion into crumple zones or impact zones. The at least one shell protrusion may be converted into a crumple zone or impact zone by incorporating impact mitigation features or impact mitigation structures that allow the collapsibility, compressibility and/or impact absorption. The impact mitigation structures may comprise at least a portion of filaments (
In one embodiment, the impact mitigating structures can comprise at least a portion of filaments.
In another embodiment, the at least a portion of the filaments may comprise filaments that buckle in response to an incident force, where buckling may be characterized by a localized, sudden failure of the filament structure subjected to high compressive stress, where the actual compressive stress at the point of failure is less than the ultimate compressive stress that the material is capable of withstanding. Furthermore, the at least a portion of the filaments may be configured to deform elastically, allowing the at least a portion of the filaments to substantially return to their initial configuration once the external force is removed. The at least a portion of filaments may extend between two surfaces, the at least a portion of filaments having at least one end coupled to the outer layer and/or the inner layer.
In another embodiment, the impact mitigating structures can comprise at least a portion of a plurality of filaments that are interconnected by laterally positioned walls or sheets in a polygonal configuration, otherwise known as laterally supported filaments (LSF).
Furthermore, the polygonal or hexagonal structures 3001 may be manufactured as individual structures or in a patterned array (see
Conversely, the polygonal or hexagonal structures 3001 may be manufactured directly into a patterned array that is affixed to at least one base membrane 3002. The base membrane may be manufactured with a polymeric or foam material. The polymeric or foam material may be flexible and/or elastic to allows it to be easily bent, twisted or flexed to conform to complex surfaces. Alternatively, the polymeric and/or foam material may be substantially rigid. The manufacturing of each patterned array of polygonal or hexagonal structures 3001 may include extrusion, investment casting or injection molding process. The base membrane with the polygonal or hexagonal structures may be affixed directly to at least a portion of the base or the entirety. Affixing each pattered array of polygonal or hexagonal structures 3001 may be arranged in continuous or segmented arrays. Also, the polygonal or hexagonal structures 3001 may have the same shape and configuration with repeating symmetrical arrangement or asymmetrical arrangement and/or different shape and configurations with repeating symmetrical arrangement or asymmetrical arrangement.
In another embodiment, the impact mitigation structure may comprise at least a portion of auxetic structures 3101 as shown in
In another embodiment, the impact mitigation layer may further comprise at least one foam layer or a portion of a foam layer. The at least one foam layer can include polymeric foams, quantum foam, polyethylene foam, polyurethane foam (foam rubber), XPS foam, polystyrene, phenolic, memory foam (traditional, open cell, or gel), impact absorbing foam (e.g., VN600),), Ethylene Vinyl Acetate foam (EVA), Ariaprene foam, latex rubber foam, convoluted foam (“egg create foam”), Evlon foam, impact hardening foam, 4.0 Custula comfort foam (open cell low density foam) and/or any combination thereof. The at least one foam layer may have an open-cell structure or closed-cell structure. The at least one foam layer can be further tailored to obtain specific characteristics, such as anti-static, breathable, conductive, hydrophilic, high-tensile, high-tear, controlled elongation, and/or any combination thereof. For example,
In another embodiment, the impact mitigation layer may further comprise at least one base layer. The at least one base layer may be a rigid and/or substantially rigid material. The at least one base layer may have a first surface and a second surface. At least a portion of an impact mitigation structure and/or a plurality of impact mitigation structures may be affixed to at least a portion of the at least one base layer first and/or second surface. Alternatively, at least one end of an impact mitigation structure and/or one end of a plurality of impact mitigation structures may be affixed to the at least one base layer first and/or second surface. Desirably, the at least one base layer may comprise two base layers, which the impact mitigation structure is disposed in between the two base layers.
In one embodiment, the impact mitigating structures can comprise a least a portion of liner pod assemblies as shown in
Furthermore, additional spaces 3308 may not be covered in case the wearer desires further attachment of additional one or more pod assemblies 3305 and allow easier flexing capabilities. Each of the liner pod assemblies 3305 may include easily removable connections (or removably connected) to couple to the helmet (e.g., first or second shells), the impact mitigation layer and/or various components thereof. Each of the one or more liner pod assemblies may be manufactured to accommodate and protect the desired region of the wearer's head. Such plurality of liner pod assemblies 3305 may include regions such as one or more of the following: a frontal assembly (or front), an occipital assembly (or lower-back), a mid-back assembly (right and/or left sides), a parietal assembly (or midline), and a temporal assembly (right and/or left sides), and/or any combination(s) thereof. Alternatively, each of the one or more liner pod assemblies 3305 may be positioned adjacent to another liner pod assembly and connected by a flexible coupling to create a single-piece pod layer. The single-piece pod layer can be folded and manipulated to conform to the curvature of the head.
Alternatively, the one or more pod assemblies 3403 may be coupled directly to the inner shell 3402. Each of the one or more liner pod assemblies 3403 may be manufactured to accommodate and protect the desired region of the wearer's head. Such plurality of liner pod assemblies 3403 may include regions such as one or more of the following: a frontal assembly (or front), an occipital assembly (or lower-back), a mid-back assembly (right and/or left sides), a parietal assembly (or midline), and a temporal assembly (right and/or left sides), and/or any combination(s) thereof.
In one exemplary embodiment, one or more liner pod assemblies can be provided in a series of sizes and/or thicknesses, such as the pods shown in
The one or more liner assemblies may comprise at least one single foam layer construction. The connection mechanism 3504 is removably coupled or permanently coupled to the single foam layer pod. The single foam layer pod construction may further comprise one or more impact mitigation structures (not shown). The at least one foam layer can include polymeric foams, quantum foam, polyethylene foam, polyurethane foam (foam rubber), XPS foam, polystyrene, phenolic, memory foam (traditional, open cell, or gel), impact absorbing foam (e.g., VN600),), Ethylene Vinyl Acetate foam (EVA), Ariaprene foam, latex rubber foam, convoluted foam (“egg create foam”), Evlon foam, impact hardening foam, 4.0 Custula comfort foam (open cell low density foam) and/or any combination thereof. The at least one foam layer may have an open-cell structure or closed-cell structure. The at least one foam layer can be further tailored to obtain specific characteristics, such as anti-static, breathable, conductive, hydrophilic, high-tensile, high-tear, controlled elongation, and/or any combination thereof.
Alternatively, the one or more liner pods may comprise a multi-foam layer construction. the multilayer layer construction may include a single foam layer, an enclosure, and impact mitigation structure, and/or a second foam layer. Such multi-construction layers may allow the assembly to function as impact mitigation and comfort, thus, eliminating the need for an additional comfort liner. In another embodiment, the one or more liner pod assemblies may comprise a multi-layered pod construction and a connection mechanism. The multi-layered pod construction comprises two or more material layers. The two or more material layers may include at least one foam layer, a resilient and/or flexible fabric (e.g., a two-way or four-way stretch fabric) layer, a plastic layer (e.g., polycarbonate), and/or any combination thereof. More specifically, the multi-layered pod construction comprises a top layer, a first foam layer, a second foam layer, a bottom layer, and/or any combination thereof. Furthermore, the one or more liner pod assembly may further comprise an impact mitigation structure (not shown) or an impact distribution plate (not shown), and/or an impact mitigation structure and an impact distribution plate, where the impact mitigation structure and/or the impact distribution plate are disposed between the top layer and/or bottom layer. Each of the two or more layers may be different material layers and/or the same material layers. The at least one top layer and at least one bottom layer may be the same material, or they may be different materials. The at least one foam layer may be a one single layer, and/or it may be a plurality of foam layers (two or more).
Desirably, the one or more liner pod assemblies may be easily removable and interchangeable. For example, in order to increase the amount of protection on the left and/or right side of the helmet, the wearer may simply replace one or more of the liner pods on the right side of the helmet with thicker or thinner liner pod assemblies to balance the width reduction, and ultimately have proper helmet adjustment to accommodate the exchange of liner pod assemblies. Alternatively, the player may choose an “oversized” comfort liner which may be slightly “too big” for the wearer, and then the wearer can replace the liner pod assemblies in one or more regions with thinner liner pod assemblies to “fit” the helmet more appropriately.
Inner Shell
In one embodiment, the adjustable helmet assembly may further comprise at least one inner shell, the inner shell being a force distribution layer. The inner shell being nested within the impact mitigation layer. The inner shell having an exterior surface and an interior surface. The at least one inner shell being a continuous shell that conforms and surrounds the head of the wearer. Alternatively, the at least one inner shell may have a two or more portions that align with the adjustable helmet system.
Accordingly, the at least one inner shell may be a rigid material. The at least one inner shell may be more rigid than the adjustable helmet system and/or more rigid than the impact mitigation layer. In some embodiments, the inner shell is five to 100 times stiffer or more rigid than the adjustable helmet system and/or the impact mitigation layer. The rigid material may comprise polycarbonate (PC). Alternatively, the inner shell comprises a relatively rigid material or relatively stiff material. The relatively rigid material may be stiff or rigid enough to withstand breakage or cracking, but flexible enough to deform slightly and distribute incident forces after an impact. The at least one inner shell may comprise a thermoplastic material. The thermoplastic materials may comprise polyurethane, polycarbonate, polypropylene, polyether block amide, and/or any combinations thereof
Supplemental Layers
In another embodiment, the adjustable helmet assembly may further comprise one or more supplemental layers. The adjustable helmet system includes a front shell, a back shell, a locking mechanism, and/or one or more supplemental layers. The helmet may further comprise an impact mitigation layer. The helmet may comprise a front shell (or first shell) and a back shell (or second shell), the first or second shell having an external surface and an internal surface. The locking mechanism being movable between a first unlocked position which allows the first and second shells to slide relative to each other and a second locked position which inhibits the first and second shells from sliding relative to each other. It may be desirous to supplement the impact mitigation layer with a one or more supplemental layers, and one or more supplemental layers may be positioned proximate to the impact mitigation layer and/or the supplemental layer may be positioned proximate to the front (or first) or back (or second) shells. In addition, the supplemental layer may be removably connected or coupled to the helmet and/or the impact mitigation layer for additional impact protection, comfort and fit for a user. The one or more supplemental layers may comprise one or more of the following: at least one foam layer, one or more liner pod assemblies, a one-piece pad assembly, a multi-piece pad construction, a polycarbonate layer and/or any combination thereof.
The supplemental layer may comprise of one or more liner pod assemblies as disclosed herein. The liner pod assemblies may be used as either a mitigation structure, supplemental layer and/or a combination thereof. The one or more liner pod assemblies may be positioned proximate to the mitigation structure and/or positioned proximate to the front and or back shells. Alternatively, the one or more liner pod assemblies may be coupled to the helmet, the impact mitigation layer, or both the helmet and the impact mitigation layer. Furthermore, the one or more liner pod assemblies may be coupled to a polycarbonate layer or a rigid polymer layer.
The one-piece supplemental layer may comprise a plurality of segmented pads that are coupled to the adjacent pad through a pivotal or flexible, elastic connection. Each of the plurality of pads may comprise a first layer, a second layer, and at least one foam layer. Each of the plurality of segmented pads are separated by gap. The foam layer is disposed between the first and second layer. The gap has a thickness, the thickness allowing substantial flexibility and/or a pivotal connection. Each of the plurality of pads may be placed in specific regions within the helmet, such as at least one frontal region (or front), an occipital region (or lower-back), a mid-back region, a parietal region (or midline), and a temporal region (right and/or left sides), and/or any combination(s) thereof. The first or second layer may comprise a two-way stretch fabric, four-way stretch fabric, Neoprene, Ducksan Power Net, thermoplastic polyurethane (TPU), any wicking material, any antimicrobial material, polycarbonate material and/or any combination thereof.
The at least one foam layer can include polymeric foams, quantum foam, polyethylene foam, polyurethane foam (foam rubber), XPS foam, polystyrene, phenolic, memory foam (traditional, open cell, or gel), impact absorbing foam (e.g., VN600), Ethylene Vinyl Acetate foam (EVA), Ariaprene foam, latex rubber foam, convoluted foam (“egg create foam”), Evlon foam, impact hardening foam, 4.0 Custula comfort foam (open cell low density foam) and/or any combination thereof. The at least one foam layer may have an open-cell structure or closed-cell structure. The at least one foam layer can be further tailored to obtain specific characteristics, such as anti-static, breathable, conductive, hydrophilic, high-tensile, high-tear, controlled elongation, and/or any combination thereof. The at least one foam layer may comprise of segmented pieces and/or one continuous layer.
Alternatively, the supplemental layer may comprise a plurality of individual segmented pads providing for a multi-piece construction. Each of the plurality of individual pads may comprise a first layer, a second layer, and at least one foam layer. The foam layer is disposed between the first and second layer. Each of the plurality of individual pads may be placed in specific regions within the helmet, such as at least one frontal region (or front), an occipital region (or lower-back), a mid-back region, a parietal region (or midline), and a temporal region (right and/or left sides), and/or any combination(s) thereof. The first or second layer may comprise a two-way stretch fabric, four-way stretch fabric, Neoprene, Ducksan Power Net, thermoplastic polyurethane (TPU), any wicking material, any antimicrobial material, polycarbonate material and/or any combination thereof.
In another embodiment, the supplemental layer 4601 may comprise a plurality of segmented assemblies 4603 providing for a multi-piece construction as shown in
1. An adjustable helmet comprising:
A first shell;
A second shell, the second shell being slidably attached to the first shell,
A locking mechanism, the locking mechanism being movable between a first unlocked position which allows the first and second shells to slide relative to each other and a second locked position which inhibits the first and second shells from sliding relative to each other.
2. An adjustable helmet comprising:
A first shell;
A second shell, the second shell being slidably attached to the first shell;
A locking mechanism, the locking mechanism being movable between an unlocked position which allows the first and second shells to slide relative to each other and a locked position which prohibits the first and second shells from sliding relative to each other.
At least one opening, the at least one opening placed adjacent to, in proximity to or within impact zones of the first or second shells, thereby absorbing the energy from an impact and reducing the transfer of the impact force to an adjacent portion of the first or second shell and/or to the wearer's head.
3. The adjustable helmet of claim 2, wherein the impact zones are located within the occipital region, temporal region, parietal region, orbit region, the frontal region, the mandible (front, right and/or left side) region, the maxilla region, the nasal region, zygomatic region, the ethmoid region, the lacrimal region, the sphenoid region and/or any combination thereof.
4. The adjustable helmet of claim 2, wherein the flexure and/or local deformation may occur laterally, perpendicular, oblique, normal to helmet plane, tangent to helmet plane, perpendicular to helmet plane, or parallel to helmet plane, and/or any combination thereof.
5. The adjustable helmet of claim 2, the at least one opening may be positioned in plane tangent to the helmet circumference, in a plane perpendicular or substantially perpendicular to the helmet plane, or in an oblique plane to the helmet plane, in a plane parallel to helmet plane, and/or any combination thereof.
6. An adjustable helmet comprising:
A first shell;
A second shell, the second shell being slidably attached to the first shell; and
A locking mechanism, the locking mechanism including:
a clamp assembly,
a plurality of teeth, at least a portion of the plurality of teeth sized and configured to fit within a portion of a plurality of recesses, the plurality of teeth disposed on the first or second shell,
a plurality of recesses, at least a portion of the plurality of recesses are sized and configured to receive the plurality of teeth, the plurality of recesses disposed on the first or second shell, the clamp assembly being movable between an unlocked position that allows the plurality of teeth and the plurality of recesses to disengage and allows the first and second shells to slide relative to each other, and a locked position that allows the a portion of the plurality of teeth and a portion of the plurality of recesses to engage and inhibits the first and second shells from sliding relative to each other.
7. An adjustable helmet comprising:
A first shell;
A second shell, the second shell being slidably attached to the first shell; and
A locking mechanism, the locking mechanism including:
a clamp tongue, clamp tongue extending away from the first or second shell, the clamp tongue having a plurality recesses, at least a portion of the plurality of recesses are sized and configured to receive a portion of a plurality of teeth,
a plurality of teeth, at least a portion of the plurality of teeth sized and configured to fit within a portion of the plurality of recesses, the plurality of teeth disposed on a portion of the first or second shell,
a clamp assembly, the clamp assembly being movable between an unlocked position that disengages the portion of the plurality of teeth from the portion of the plurality of recesses and allows the first and second shells to slide relative to each other, and a locked position that allows a portion of the plurality of teeth and a portion of the plurality of recesses to engage and inhibits the first and second shells from sliding relative to each other.
8. An adjustable helmet comprising:
A first shell, the first shell having an external surface and an internal surface;
A second shell, the second shell being slidably attached to the first shell, the second shell having an external surface and an internal surface; and
A locking mechanism, the locking mechanism including:
a clamp tongue, clamp tongue extending away from the first or second shell, the clamp tongue having a plurality of recesses, at least a portion of the plurality of recesses are sized and configured to receive a portion of a plurality of teeth,
a plurality of teeth, at least a portion of the plurality of teeth sized and configured to fit within a portion of the plurality of recesses, the plurality of teeth disposed on a portion of the first or second shell,
a clamp assembly, the clamp assembly being movable between an unlocked position that disengages the portion of the plurality of teeth from the portion of the plurality of recesses and allows the first and second shells to slide relative to each other, and a locked position that allows the a portion of the plurality of teeth and a portion of the plurality of recesses to engage and inhibits the first and second shells from sliding relative to each other.
a cavity, the cavity being sized and configured to receive the clamp assembly, the cavity being disposed within the first or second shells, the clamp assembly having a top surface and a bottom surface, the clamp assembly top surface being flush or substantially flush with the external surface of the first or second shell.
9. An adjustable helmet comprising:
A first shell, the first shell having an external surface and an internal surface;
A second shell, the second shell being slidably attached to the first shell, the second shell an external surface and an internal surface; and
A locking mechanism, the locking mechanism including; and
a clamp assembly, the clamp assembly having a clamp body, the clamp post, and a base plate;
a clamp tongue, clamp tongue extending away from the first or second shell, the clamp tongue having a top surface, a bottom surface and a first channel, the clamp tongue top surface having a plurality of a plurality recesses, at least a portion of the plurality of recesses are sized and configured to receive a portion of a plurality of teeth, the channel sized and configured to receive the clamp post;
a plurality of teeth, the plurality of teeth disposed on a portion of the first or second shell internal surface, at least a portion of the plurality of teeth sized and configured to fit within a portion of the plurality of recesses, the first or second shell internal surface further including a second channel, the second channel sized and configured to receive the clamp post;
a cavity, the cavity being sized and configured to receive the clamp assembly, the cavity being disposed within the first or second shells external surface, the clamp assembly having a top surface and a bottom surface, the clamp assembly top surface being flush or substantially flush with the external surface of the first or second shell, the cavity having an aperture, the aperture sized and configured to receive the clamp post; the base plate coupled to the clamp post, the base plate abuts the bottom surface of the clamp tongue;
a clamp assembly, the clamp assembly being movable between a locked position and an unlocked position, the locked position places tension on the clamp post and the base plate to compress the clamp tongue allowing a portion of the plurality of teeth and a portion of the plurality of recesses on the clamp tongue to engage and inhibit the first and second shells from sliding relative to each other, the unlocked position places compression on the clamp post and the base plate to release the clamp tongue allowing the portion of the plurality of teeth and the portion of the plurality of recesses of the clamp tongue to disengage, and allow the first and second shells to slide relative to each other.
10. The adjustable helmet of claim 1, 2, 5, 6, 7 or 8, wherein the adjustable helmet further comprises an impact mitigation layer.
11. The adjustable helmet of claim 1, 2, 5, 6, 7 or 8, wherein the adjustable helmet further comprises a supplemental layer.
12. The adjustable helmet of claim 1, 2, 5, 6, Tor 8, wherein the adjustable helmet further comprises ear protection.
13. The adjustable helmet of claim 1, 2, 5, 6, 7 or 8, wherein the adjustable helmet further comprises a jaw frame.
14. The adjustable helmet of claim 1, 2, 5, 6, 7 or 8, wherein the adjustable helmet further comprises a chin strap.
15. The adjustable helmet of claim 10, wherein the supplemental layer is one or more liner pod assemblies.
16. The adjustable helmet of claim 14, wherein the one or more liner pod assemblies are removably connected.
17. An improved helmet, comprising:
a helmet, the helmet having an outer layer and a shell protrusion, the outer layer having an outer surface and an inner surface, the shell protrusion extending outwardly from the outer layer outer surface, and
at least one impact mitigation feature, the at least one impact mitigation feature being disposed onto the shell protrusion and extending therethrough;
18. An improved helmet, comprising:
a helmet, the helmet having an outer layer and a shell protrusion, the outer layer having an outer surface and an inner surface, the shell protrusion extending outwardly from the outer layer outer surface, and
at least one impact mitigation structure, the at least one impact mitigation structure being disposed onto the shell protrusion;
19. An improved helmet, comprising:
a helmet, the helmet having an outer layer and a shell protrusion, the outer layer having an outer surface and an inner surface, the shell protrusion extending outwardly from the outer layer outer surface, the shell protrusion having a cavity disposed within, and
at least one impact mitigation structure, the at least one impact mitigation structure being disposed within the cavity of the shell protrusion;
20. An improved helmet, comprising:
a helmet, the helmet having an outer layer and a shell protrusion, the outer layer having an outer surface and an inner surface, the shell protrusion extending outwardly from the outer layer outer surface, the shell protrusion having a cavity disposed within, and
at least one impact mitigation structure, the at least one impact mitigation structure replacing the shell protrusion.
This application is a continuation of Patent Cooperation Treaty Application Serial No. PCT/US2019/027557, entitled “Adjustable Helmet Assembly,” filed Apr. 15, 2019 which claims benefit of U.S. Provisional Patent Appl. Ser. No. 62/657,744 entitled “Collapsible Helmet Impact Zones,” filed Apr. 14, 2018, U.S. Provisional Patent Appl. Ser. No. 62/716,066 entitled “No Tool Adjustable Helmet System,” filed Aug. 8, 2018 and U.S. Provisional Patent Appl. Ser. No. 62/792,573 entitled “No Tool Adjustable Helmet System, filed Jan. 15, 2019, which all the disclosures are incorporated by reference herein in its entireties.
Number | Date | Country | |
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62792573 | Jan 2019 | US | |
62657744 | Apr 2018 | US | |
62716066 | Aug 2018 | US |
Number | Date | Country | |
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Parent | PCT/US2019/027557 | Apr 2019 | US |
Child | 17067013 | US |