Containers for particulate (roast or ground) coffee have many unique requirements not considered for other containers. For example, coffee particulates give off gases while being stored, and are deleteriously affected by air. Thus, coffee particulate containers must prevent the ingress of air and hence be air-tight; but such containers must also be suitably robust to withstand a build-up of pressure, or alternatively, the container must vent the built up gases before the pressure thereof damages (miss-shapes or breaks) the container.
While particulate coffee containers were previously generally made of metal formed into a cylinder with a top and a bottom (which was thus easily made robust and air-tight), new cylindrical and other plastic containers, particularly with layered walls, have now been found to be suitable for containing particulate coffee. However, where such plastic containers have sufficient size to store a desired volume of particulate coffee, typically in the range of 2-4 pounds and having diameters of about 5-7 inches, such containers have been difficult to handle. Thus, ease of use by the user of such plastic containers at home has also been a problem.
Cylindrical plastic coffee containers which are sized as discussed above have been known with pinch handles to provide for easier handling and holding. However, such pinch handles require significant friction to be generated by the thumb/fingers of the user to prevent slippage, which friction is the result of the force with which the thumb/fingers engage the pinch handle. Thus, such pinch handles are difficult for the user to grasp and then to hold with the required force for a sufficient time due to tiring of the thumb/finger muscles, so that the overall container weight which a user is able to hold is limited. In addition, such containers may be hard to hold in view of the moment exerted on the wrist of the user due to the distance to the center of gravity of the container.
For example, depicted schematically in
The pinch grip for cylindrical container 10 is made of two mirror image concave pinch pockets 18a and 18b formed integrally in generally cylindrical wall member 14 of container 10. It will be appreciated that pinch pockets 18a and 18b are viewed from above in
In accordance with a first embodiment of the present invention, a plastic container for a particulate product includes a base and a surrounding wall member which is upstanding from the base, with the base and the surrounding wall member generally defining a container main interior volume. A top connects with the surrounding wall member and includes a large opening therein which is preferably at least sufficient for a 5 inch diameter cylinder to fit therethrough. The surrounding wall member includes a pair of pinch pockets having a lateral opening separation W which is not greater than about 2.5 inches.
In the first embodiment, the lateral opening separation W is preferably between about 2.0 to 2.5 inches, and W is most preferably about 2.25 inches with each pinch pocket also then having a vertical height of at least about 2.5 inches. In addition, the pinch pockets are centrally directed; and each pinch pocket has a depth D of not less than about 1.25 inch, and preferably the depth D is in the range of about 1.25-2.25 inches and is most preferably about 1.75 inch.
Also in the first embodiment, the pair of pinch pockets have a lateral minimum separation C of about 1.0 to 1.5 inches, and preferably about 1.25 inches. In addition, each pinch pocket has a vertical length of at least about 2.5 inches, and the lateral opening separation W is about 2.25 inches.
Other features of the first embodiment, which can be used singly or in combination as appropriate and desired, are: (a) the surrounding wall member further includes a thumb receiving concavity above each pinch pocket; (b) a portion of the surrounding wall member including the pinch pockets is generally curved in cross section; (c) a portion of the surrounding wall member including the pinch pockets is generally straight in cross section; (d) a portion of the surrounding wall member including the pinch pockets is a corner; (e) a portion of the surrounding wall member including the pinch pockets is a peaked side; (f) a portion of the surrounding wall member including the pinch pockets is recessed radially inward relative to a remainder of the surrounding wall member; (g) a portion of the surrounding wall member between the pinch pockets is recessed radially inward relative to a remainder of the surrounding wall member; and/or (h) a substantially horizontal support surface is provided between the pinch pockets.
In a second embodiment of the invention, the container similarly comprises a base, a surrounding wall member and a top with a large opening at least sufficient for a 5 inch diameter cylinder to fit therethrough. In addition, the surrounding wall member has a pair of pinch pockets having a lateral minimum separation C of not greater than about 2.0 inches. Preferably, the lateral minimum separation C is about 1.0 to 1.5 inches. More preferably, each pinch pocket has a vertical height of at least about 2.5 inches, and the lateral minimum separation C is about 1.25 inches.
In the preferred second embodiment, the pinch pockets have outside walls that are generally collinear to one another, and each pinch pocket has a depth D of not less than about 1.0 inch. Preferably, the depth D is between about 1.25-1.75 inches, and most preferably the depth D is about 1.5 inches. The other features of the first embodiment noted above are also usable as appropriate with this embodiment as well.
In another embodiment, a plastic container having a base, a surrounding wall member and a top with a large opening further includes a pair of pinch pockets and a separate thumb receiving concavity above each pinch pocket. The configurations of the pinch pockets can be as described above in either of the two noted embodiments. In addition, in one preferred embodiment, each thumb receiving cavity extends inwardly of the surrounding wall member a distance that is greater than a distance D that an adjacent the pinch pocket extends inwardly. The other features of the first embodiment noted above are also usable as appropriate with this embodiment as well.
In a further embodiment, a plastic container having a base, a surrounding wall member and a top with a large opening further includes a handle. The handle includes a pair of pinch pockets formed in a portion of the surrounding wall member, with the pinch pockets having a depth, shape and distance from each other so as to substantially minimize a distance between a wrist of a user when holding the container by the pinch pockets and a center of gravity of the container. Various shapes and features of the pinch pockets or handle are usable as appropriate and as described above for the other embodiments.
It is an advantage of the present invention that a plastic container from which a particulate product is withdrawn includes a pinch grip which is easily grasped and held.
It is also an advantage of the present invention that the pinch grip includes a thumb receiving cavity located above pinch pockets, making the container easier to grip and hold. It is also an advantage of the present invention that the pinch pockets are recessed into the surrounding wall member of the container to provide additional upper and/or lower support surfaces.
It is a further advantage that the container critical dimensions are disclosed which provide the pinch grip with the best combination of elements to provide a pinch grip which is easier to handle and hold.
Other features and advantages of the present invention are stated in or apparent from detailed descriptions of presently preferred embodiments of the invention as discussed in greater detail below.
With reference now to the drawings in which like numerals represent like elements in the views, a plastic particulate coffee container 20 according to a first embodiment of the present invention is shown in
Like the containers described in those serial numbers, (or like prior art container 10), container 20 is designed for the containing of ground or roast (particulate) coffee or a like non liquid-like product, so that container 20 is made of a suitable blow-molded plastic such as high density polyethylene (HDPE), preferably by an extrusion blow molding rotary process or the like. As so formed, container 20 includes a generally round base 22 with an integrally formed surrounding wall member 24 extending upwardly therefrom. In order to allow easy withdrawal of coffee from within container 20, it will be appreciated that container 20 has a large top opening 25, such as substantially the same diameter as surrounding wall member 24, and which top opening is at least sufficient for a 5 inch cylinder to fit therethrough.
As noted above, one problem with prior art containers such as container 10 is that they can be hard to handle and hold. It will thus be appreciated that container 20 includes a pinch grip formed from two pinch pockets 28a and 28b which is designed to make container 20 easier to handle and hold. It will also be appreciated that pinch pockets 28a and 28b are shown as viewed from above in
While otherwise broadly similar to pinch pockets 18 of the prior art, it will be noted that whereas prior art container 10 had a lateral opening separation distance W1 of 3.0 inches, container 20 of the present embodiment has a lateral opening separation W2 which is not greater than 2.5 inches, and preferably is between about 2.0-2.5 inches, and most preferably is about 2.25 inches. In addition to this reduced lateral opening separation, a reduced lateral minimum separation C2 of pinch pockets 28 is also desired, which is significantly less than the 2.375 inches lateral minimum separation C1 of prior art container 10. In particular, lateral minimum separation C2 is less than 2.0 inches, and preferably is between about 1.0-1-5 inches, and most preferably about 1.25 inches.
Like prior art pinch pockets 18, pinch pockets 28 also extend somewhat deeper into container 10 from surrounding wall member 24 at about a vertical center thereof relative to the top and bottom by a distance essentially the same as distance B discussed above for the prior art container 10 (or about 0.375 inches as noted above). However, pinch pockets 28 have a depth D2 which is not less than 1.25 inches, and which is preferably in the range of about 1.25-2.25, and preferably is about is 1.75. Further, it will be noted that pinch pockets 28 are generally radially directed, and in particular pinch pockets have inside walls 26a and 26b as well as outside walls 29a and 29b that are generally radially directed. This radial direction is different from prior art pinch pockets 18. In particular, while prior art pinch pockets 18 has inside walls 16 which are radially directed, outside walls 19 are generally collinear to one another and hence not radially directed. Thus, overall, prior art pinch pockets 18 are not radially directed (see
This radial direction of pockets 28, together with the smaller lateral opening separation W2, smaller lateral minimum separation C2, and deeper depth D2, make it easier to insert the fingers and thumb into pinch pockets 28 to grasp container 20 and to hold the fingers and thumb more naturally in place against inside walls 26a and 26b. This reduces finger muscle strain, making the handling and holding of container 20 much easier relative to prior art container 10. In addition, the deeper penetration of the fingers and thumb also means that there is now provided some vertical support (or some more relative to prior art container 10) as the upper portions of the ends of the user's forefinger and thumb engage the tops of pinch pockets 28 as appreciated from
The deeper penetration of the fingers further means that the distance from the center of gravity for container 20 to the center of the wrist joint of the user is also reduced relative to that of container 10. Thus, the resultant moment on the wrist joint is also reduced, again helping the user to more easily hold and handle container 10 (especially when container 20 is filled). In addition, the deeper penetration also allows a portion of the palm of the user to more easily contact the portion of surrounding wall member 24 between pinch pockets 28, so that resisting the pivoting moment of container 20 (and also the vertical supporting of container 20) is additionally made easier as the area of the hand resisting movement is spread over a larger area.
It will also be appreciated that with this reduced lateral opening separation W2 and reduced lateral minimum separation C2, the fingers and opposed thumb of the user when engaged in pinch pockets 28 are consequently closer together (approximately the distance C2) than in the prior art container 10. This is a more natural separation distance for both separations W2 and C2, and permits the fingers and thumb to engage inside walls 26a and 26b of each pinch pocket 28 to a greater extent than inside walls 16a and 16b of prior art pinch pockets 18 are engaged and with less muscle strain. This more positive engagement of inside walls 26a and 26b is also facilitated by the increased depth D2 which together with decreased lateral minimum separation C2 also provides a much greater surface area to be engaged by the thumb and fingers, as well as by the general radial directions of pinch pockets 28.
The ability of the above discussed particular features of container 20 to allow for a more easy holding and handling of container 20 can be suitably envisioned by imagining the difference between a half circle shape of the fingers and thumb of a hand engaging pinch pockets 18, and a greater than half circle shape of the same fingers and thumb of a hand engaging pinch pockets 28. Thus, more of the fingers and thumb of the hand are able to be located in the concavities of pinch pockets 28 and against inside walls 26a and 26b- relative to pinch pockets 18 where the narrow intersection (i.e., bridging connection) of pinch pockets 18 with surrounding wall member 14 are more likely to be engaged (and engaged with less effectiveness). In addition, the decreased lateral minimum separation C2 and greater depth D2 also translate into a longer and hence greater surface/friction area to be contacted by the thumb and fingers along inside walls 26a and 26b in pinch pockets 28, particularly where these pockets 28 are radially directed similar to the arced shape of the fingers and thumb; which thus also increases the ease of holding and handling. The decreased lateral minimum separation C2 and greater depth D2 further translate into a reduced distance from the center of support for container 10 by the fingers and thumb to the center of gravity of container 10.
Depicted in
Container 30 includes a particular pinch grip formed from two pinch pockets 38a and 38b which are designed to make container 30 easier to handle and hold. Like pinch pockets 28, pinch pockets 38 are generally designed for a container having a diameter of between about 5-7 inches (and hence an opening sufficient to fit about a 5 inch cylinder therethrough), and particularly for a container having about a 6.25 inch diameter like prior art container 10. However, it will be noted that whereas container 10 had a lateral minimum separation C1 of 2.375 inches, container 30 of the present invention has a lateral minimum separation C3 which is less than about 2.0 inches and preferably between about 1.0-1.5 inches, and most preferably is about 1.25 inches. And also unlike container 20, container 30 includes a lateral opening separation W3 of about 3.0 inches which is about the same as that of prior art container 10. Further, container 30 has a depth D3 which greater than 1.0 inches, preferably in the range of about 1.25-1.75, and preferably is about is 1.5. It will also be noted that pinch pockets 38 are generally not radially directed like pinch pockets 28 discussed above. Instead, pinch pockets 38 have outside walls 39a and 39b that are generally collinear and hence similar in that respect to outside walls 19a and 19b of container 10.
With this smaller lateral minimum separation C3 (i.e., with the fingertips and thumb tip closer) and hence deeper depth D3, or in other words a deeper (into container 30) concavity forming pinch pockets 38a and 38b relative to pinch pockets 18 of prior art container 10, the thumb and fingers of a user are able bend more when inserted and hence to penetrate deeper into pinch pockets 38a and 38b to more fully engage inside walls 36a and 36b of pinch pockets 38a and 38b even though the lateral opening separation W3 is still as large as that of prior art container 10. In addition, the deeper penetration also allows for some significant vertical support to be achieved as the ends of the forefinger and thumb contact the top of pinch pockets 38 in the same manner as discussed above for container 20. Thus the user is able to more effective handle and hold container 30 relative to prior art container 10 in much the same manners as described above for container 20, so that there is reduced finger muscle strain, etc. for the user compared to that which occurs with container 10.
Depicted in
Container 40 includes a pinch grip formed from two pinch pockets 48a and 48b which are otherwise broadly similar to the prior art pinch pockets 18a and 18b. However, near the top of each pinch pocket 48a and 48b, there are provided respective thumb receiving cavities 47a and 47b. Thumb receiving cavities 47 extend deeper into container 40 than pinch pockets 48, and the deepest part thereof is shifted closer to the other pinch pocket compared to the deepest part of the concavity of each pinch pocket 48 as shown best in
With the above-described construction, container 40 is easier to handle and hold by a user. In particular, when a user grips container 40 with one (either) hand, the thumb is located in one thumb receiving cavity 47 while the fingers are located in the other pinch pocket 48; although depending on desires or hand size of the user, the forefinger can either be located in the other/opposite thumb receiving cavity 47 or together with all of the fingers in the other/opposite pinch pocket 48. Obviously, container 40 can be gripped by either the left or right hand as the user desires since there is a thumb receiving cavity for both the left and right thumbs, and pinch pockets 48 on the opposite side therefrom then receive the fingers.
Due to the presence of deep thumb receiving cavity 47, a more positive vertical support is achieved by the end of the thumb engaging the top of thumb receiving cavity 47 as shown by
Depicted in
Container 50 includes a pinch grip formed from two pinch pockets 58a and 58b which are otherwise broadly similar to pinch pockets 28a and 28b of container 20. However, near the top of each pinch pocket 58a and 58b, there are provided respective thumb receiving cavities 57 (only the left side one is shown, the right side one not shown being a mirror image thereof). Similar to container 40 discussed above, thumb receiving cavities 57 of container 50 extend deeper into container 50 than pinch pockets 58, and the deepest part thereof is shifted closer to the other pinch pocket compared to the deepest part of the concavity of each pinch pocket 58 as shown. In addition, the overall concavity forming each thumb receiving cavity 57 is also extended circumferentially closer to the other to reduce the effective (with the thumb located in one thumb receiving cavity 57 and the fingers in the other pinch pocket 58) lateral opening separation W5 to be between about 1.5-2.0 inches, and preferably about 1.75 inches. It will thus be appreciated that W5 is significantly less than W1=3.0 for prior art container 10, and is smaller even than W2 (preferably about 2.25) of container 20 and W4 of container 40 due to thumb receiving cavity 57. In addition, the effective lateral minimum separation C5 is between about 1.0-1.5 inches, and preferably is about 1.125 inches; and the depth D5 of pinch pockets 58 is about the same as D2 of container 20 (greater than 1.25 inches, preferably in the range of about 1.25-2.25, and preferably is about is 1.75). It will thus be appreciated that C5 is significantly less than C1=2.375 for prior art container 10, and slightly smaller even than C2 (preferably about 1.25) of container 20 and smaller than C4 of container 40. Similar to container 20, outside walls 59a and 59b are also approximately radially directed.
With the above-described construction, container 50 is easier to handle and hold by a user. In particular, when a user grips container 50 with one (either) hand, the thumb is located in one thumb receiving cavity 57 while the fingers are located in the other pinch pocket 58 with or without the forefinger located in the other thumb receiving concavity as with container 40. Due to the reduced (relative to prior art container 10) effective lateral opening separation W5 which is even somewhat smaller than for container 20 described above due to thumb receiving cavity 57, container 50 is easier to grip and hold in the same manner as described above for containers 20 and/or 40 since the critical lateral opening separation for holding is that between the thumb and forefinger (where the majority of the gripping force is effected). Likewise, due to the reduced (relative to prior art container 10) effective minimum opening separation C5 which is even slightly smaller than for container 30 described above due to the greater depth of thumb receiving cavity 57, container 50 is easier to grip and hold in the same manner as described above for containers 20 and/or 40 since the thumb and fingers of a user are able bend more when inserted and hence to penetrate deeper into the deeper pinch pockets 58a and 58b to more fully engage inside walls 56a and 56b of pinch pockets 58a and 58b. Container 50 also has the other general advantages discussed above for containers 20 and 40 over prior art container 10.
Depicted in
Container 60 includes a pinch grip formed from two pinch pockets 68a and 68b which are otherwise broadly similar to pinch pockets 38a and 38b of container 30. However, near the top of each pinch pocket 68a and 68b, there are provided respective thumb receiving cavities 67 (only the left side one is shown, the right side one not shown being a mirror image thereof). Similar to container 40 discussed above, thumb receiving cavities 67 of container 60 extend deeper into container 60 than pinch pockets 68, and the deepest part thereof is shifted closer to the other pinch pocket compared to the deepest part of the concavity of each pinch pocket 68 as shown. In addition, the overall concavity forming each thumb receiving cavity 67 is also extended circumferentially closer to the other to reduce the effective (with the thumb located in one thumb receiving cavity 67 and the fingers in the other pinch pocket 68) lateral opening separation W6 to be between about 2.25-2.75 inches, and preferably about 2.5 inches. It will thus be appreciated that W6 is less than W1=3.0 for prior art container 10, and about the same as W4 of container 40. In addition, the effective lateral minimum separation C6 is between about 1.0-1.5 inches, and preferably is about 1.125 inches; and the depth D6 of pinch pockets 58 is about the same as D3 of container 30 (greater than 1.25 inches, preferably in the range of about 1.25-2.25, and preferably is about is 1.75). It will thus be appreciated that C6 is significantly less than C1=2.375 for prior art container 10, and slightly smaller even than C3 (preferably about 1.25) of container 30 and smaller than C4 of container 40. Similar to container 30, outside walls 69a and 69b are also generally collinear.
With the above-described construction, container 60 is easier to handle and hold by a user. In particular, when a user grips container 60 with one (either) hand, the thumb is located in one thumb receiving cavity 67 while the fingers are located in the other pinch pocket 68 with or without the forefinger located in the other thumb receiving concavity as with container 40. Due to the reduced (relative to prior art container 10 or container 30) effective lateral opening separation W6, container 60 is easier to grip and hold in the same manner as described above for containers 30 and/or 40 since the critical lateral opening separation for holding is that between the thumb and forefinger. Likewise, due to the reduced (relative to prior art container 10) effective minimum opening separation C6 which is even slightly smaller than for container 30 described above and due to the greater depth of thumb receiving cavity 67, container 60 is easier to grip and hold in the same manner as described above for containers 30 and/or 40 since the thumb and fingers of a user are able bend more when inserted and hence to penetrate deeper into pinch pockets 68a and 68b to more fully engage inside walls 66a and 66b of pinch pockets 68a and 68b. Container 60 also has the other general advantages discussed above for containers 30 and 40 over prior art container 10.
As noted above, containers 20, 30, 40, 50 and 60 were generally depicted as being cylindrical in cross section as shown in
Besides an elliptically shaped surrounding wall member, the container having a pinch grip in accordance with the present invention could also have an arcuate or curved portion of the surrounding wall member, with some or all of the remaining surrounding wall member having one or more straight or curved sides. For example, depicted in
As another example, depicted in
Besides providing a pinch grip in a curved wall portion, a pinch grip in accordance with the present invention could also be provided in a straight wall portion, such as straight wall portions 214 and 224 mentioned above. Thus, it would be possible to provide a container forming a polygon or other shape made up of one or more straight wall portions with a pinch grip in one (or more if desired) straight wall portions, such a rectangular container 230 depicted in
Examples of pinch grips which could be provided in straight wall portions are shown in
Similarly, depicted in
Also similarly, depicted in
Besides being provided in a curved or a straight wall portion of a container as described above, a pinch grip in accordance with the present invention could also be provided in a corner (intersection of two straight wall portions, or even a straight wall portion and a curved portion) such as those corners depicted in
Depicted in
Depicted in
The presence of recess wall portion 125 provides two mechanisms by which container 120 is easier to hold than even container 20. First, by moving pinch pockets 128 closer to the center of gravity of container 120, relative to pinch pockets 28 of container 20, there is a smaller pivot moment applied to the wrist of the user when container 120 is held using pinch pockets 128. Second, support surfaces 127 and 129 serve to provide, either singly, or preferably in combination: support against the moment as bottom support surface 129 is engaged with the bottom of the hand of the user gripping pinch pockets 128; and vertical support for the weight of container 120 as upper support surface is engaged with the top of the hand of the user. The result is thus that container 120 is even easier to hold than container 20, particularly when container 120 is full.
It will also be noted that container 120 has pinch pockets 128 located vertically differently from the previously disclosed embodiments. In particular, pinch pocket 128 are not located around the mid-point of the height of container 120, but rather downwardly therefrom. This downwardly offset location of pinch pockets 128 will make container 120 somewhat easier to hold, relative to a mid-point location of the pinch pockets, as container 120 is emptied.
Depicted in
Although the preferred embodiments of the containers have been depicted with pinch pockets which have inside walls that are generally C shaped (in longitudinal cross section), other shapes such as straight or including finger recesses would be possible.
While the present invention has been described with respect to exemplary embodiments thereof, it will be understood by those of ordinary skill in the art that variations and modifications can be effected within the scope and spirit of the invention.
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20080029475 A1 | Feb 2008 | US |