Patent Grant
9210976
Described herein are protective cases, sleeves or other containment systems for carrying a portable electronic device, such as, for example, a laptop computer.
Consumers are increasingly offered a variety of sizes when it comes to portable electronic devices such as, for example, laptop computers. For example, current standard sized laptop computers are often available with screen sizes ranging between 13 inches and 17 inches. Screen sizes for mini laptop computers may be in the range of 10″ or smaller, and extra large laptop computers may have screen sizes that exceed 17 inches. Some laptop computers are thick while others are extremely thin, e.g., the MacBook Air™ or the iMac™ laptop computers.
It is common for a person to own more than one portable electronic device, choosing to carry one device over the other depending on the needs of the person. For example, a professional may elect to carry a very large laptop computer when visiting a client to give a presentation, while electing to carry an iMac™ laptop computer when not working.
Many portable electronic device carrying systems, such as bags or cases, are designed to securely receive a relatively small range of sizes for portable electronic devices. As such, an individual may undesirably need multiple bags or cases to transport in a secure manner each device owned by the person.
In one embodiment, a containment apparatus for receiving a portable electronic device may include a base, a first flap, a second flap, a third flap, and a securing element. The base may include a generally planar region, a first edge, a second edge opposite the first edge, a third edge extending between the first edge and second edge, and a fourth edge opposite the third edge. The generally planar region may be bordered by the first, second, third and fourth edges. The first, second, and third flaps and the securing element may extend from the base. The first flap may include a first inner surface, a first outer surface, and a first engagement feature. The second flap may include a second inner surface, a second outer surface, and a second engagement feature. The third flap may include a third inner surface, a third outer surface, and a third engagement feature. The securing element may be positioned on a portion of the base distal from the first flap. The securing element may include a fourth inner surface, a fourth outer surface, and a fourth engagement feature.
When the apparatus is in an open condition in preparation for receiving the device, the first inner surface, the second inner surface, the third inner surface, and the fourth inner surface can be caused to face in generally the same direction as faced by the generally planar region. When the apparatus is in a closed condition about the device, the first inner surface, the second inner surface, the third inner surface, and the fourth inner surface face generally towards the generally planar region with at least one of the second, third, or fourth engagement features engaging the first engagement feature. Further, the first flap, the second flap, the third flap, and the base may collectively define an enclosing volume sized to receive at least a portion of the device therein.
In another embodiment, a containment apparatus for receiving a portable electronic device may include a base wall, a first wall, a second wall, a third wall, and a securing element. The base wall may include a right edge, a left edge, a bottom edge and a top edge. The securing element and the first, second, and third walls may each include a free end and an attached end opposite the free end. The attached ends of the securing element and the first, second and third walls may each be joined to the base wall. The securing element may be positioned on the base wall on a portion of the base wall distal from the third wall. The free ends of the first wall, the second wall, and the securing element may be repeatably and adjustably coupled to the third wall.
Yet another embodiment may take the form of a method of enclosing a portable electronic device in a containment apparatus. The method may include placing the device on a surface of a back wall. The method may also include folding a front wall that is joined to the back wall over the device so the device is positioned between the back wall and the front wall. The method may further include folding a right wall that is joined to the back wall over the front wall and securing the right wall to the front wall via engagement between securing features of the right wall and the front wall. The method may yet further include folding a left wall that is joined to the back wall over the front wall and securing the left wall to the front wall via engagement between securing features of the left wall and the front wall. The method may also include folding a securing element that is coupled to the back wall over the front wall and securing the securing element to the front wall via engagement between securing features of the securing element and the front wall.
In yet another embodiment, a containment apparatus for receiving a portable electronic computing device may include a base, a first flap, a second flap, and a third flap. The base may include a generally planar region, a first edge, a second edge opposite the first edge, a third edge extending between the first edge and second edge, and a fourth edge opposite the third edge. The generally planar region may be bordered by the first, second, third and fourth edges. The first, second, and third flaps may extend from the base. The first flap may include a first inner surface, a first outer surface, and a first engagement feature. The second flap may include a second inner surface, a second outer surface, and a second engagement feature. The third flap may extend from the base. The third flap may include a third inner surface, a third outer surface, and a third engagement feature. At least one of the second flap or the third flap may include a plurality of rectangular regions with each rectangular region joined to an adjacent rectangular region via a joint such that each rectangular region may be selectively pivoted relative to an adjacent rectangular region.
When the apparatus is in an open condition in preparation for receiving the device, the first inner surface, the second inner surface, and the third inner surface can be caused to face in generally the same direction as faced by the generally planar region. When the apparatus is in a closed condition about the device, the first inner surface, the second inner surface, and the third inner surface face generally towards the generally planar region with at least one of the second or third engagement features engaging the first engagement feature. Further, the first flap, the second flap, the third flap, and the base may collectively define an enclosing volume sized to receive at least a portion of the device therein.
In still yet another embodiment, a containment apparatus for receiving a portable electronic device may include a base, a first flap, a second flap, and a third flap. The base may include a generally planar region, a first edge, a second edge opposite the first edge, a third edge extending between the first edge and second edge, and a fourth edge opposite the third edge. The generally planar region may be bordered by the first, second, third and fourth edges. The first, second and third flaps may extend from the base. The first flap may include a first inner surface, a first outer surface, and a first engagement feature. The second flap may include a second inner surface, a second outer surface, and a second engagement feature. The third flap may include a third inner surface, a third outer surface, and a third engagement feature. At least one of the second flap or the third flap may include a plurality of padded regions with each padded region joined to an adjacent padded region via a joint such that each rectangular region may be selectively pivoted relative to an adjacent rectangular region.
When the apparatus is in an open condition in preparation for receiving the device, the first inner surface, the second inner surface, and the third inner surface can be caused to face in generally the same direction as faced by the generally planar region. When the apparatus is in a closed condition about the device, the first inner surface, the second inner surface, and the third inner surface face generally towards the generally planar region with at least one of the second or third engagement features engaging the first engagement feature. Further, the first flap, the second flap, the third flap, and the base may collectively define an enclosing volume sized to receive at least a portion of the device therein.
Described herein is a protective or supportive containment apparatus 5, such as a case, a sleeve or the like, configured to hold portable electronic devices 10 (e.g., laptop computers, electronic tablets, etc.) of a wide range of sizes. In some embodiments, the apparatus 5 may include a base 15, a first or bottom flap 50 extending from near a first or bottom edge 40 of the base, a securing element 195 extending from near a second or top edge 45 of the base, a second or right side flap 100 extending from near a third or right edge 30 of the base, and a third or left side flap 145 extending from near a fourth or left edge 35 of the base. The flaps may be configured to define walls of an enclosing volume 75 for receiving at least a portion of the device 10 therein, and the securing element may be configured to secure the device in the enclosing volume defined by the walls. In some embodiments, the base 15 may form the back wall, the bottom flap 50 and first portions of the right and left flaps may form the front wall, a second portion of the right flap 100 may form the right wall, and a second portion of the left flap 145 may form the left wall.
To create the enclosing volume, the bottom flap may be folded up and over the device 10 to be held by the apparatus 5. As viewed from the front of the apparatus, the right flap may be folded to the left and over the right side of the device and the outer face 90 of the bottom flap. A first securing feature 95 of the bottom flap may be engaged with a second securing feature 140 of the right flap. As viewed from the front of the apparatus, the left flap may be folded to the right and over the left side of the device and the outer face 90 of the bottom flap. A third securing feature 190 of the left flap may engage the first securing feature 95 of the bottom flap.
To secure the device 10 within the enclosing volume defined by the base and the bottom, right and left flaps, the securing element 195 may be folded down and over the top edge of the device 10 and the outer face 90 of the bottom flap. A fourth securing feature 225 of the securing element may engage the first securing feature 95 of the bottom flap 50.
Because the securing features'of the right flap, left flap and securing element are adjustably and repeatably securable to the securing feature of the bottom flap, the flaps and securing element can be secured snugly about a device of a first size and then secured snugly about another device of a second size that is substantially different than the first size. Thus, a single apparatus 5 can be employed to carry two or more differently sized devices owned by a user.
For a general discussion of an embodiment of a containment apparatus for carrying a range of sizes of portable electronic computing devices, reference is made to
For convenience, the edges of the base may be generally be referenced in the detailed description as the bottom edge, the top edge, the right edge, and the left edge with the understanding that the “bottom edge” could also be referred to as the “first edge”, the “top edge” as the “second edge”, the “right edge” as the “third edge”, and the “left edge” as the “fourth edge”. Similarly, the flaps may generally be referenced in the detailed description as the bottom flap, the right flap, and the left flap with the understanding that the “bottom flap” could also be referred to as the “first flap”, the “right flap” as the “second flap”, and the “left flap” as the “third flap”. Further, the terms “bottom”, “top”, “right”, “left”, “first”, “second”, “third”, and “fourth” are used to facilitate the user's understanding of the apparatus and are not intended to imply that any particular edge must necessarily be the “bottom”, “top”, “right”, “left”, “first”, “second”, “third”, or “fourth” edge; that any particular flap must necessarily be the “bottom”, “right”, “left”, “first”, “second”, or “third” flap; and that any particular securing feature must necessarily be the “first”, “second”, “third”, or “fourth” securing feature.
With reference to
Turning to
The seam 65 may generally define a first pivot axis that the bottom flap 50 may be selectively pivoted around. The seam 65 may further define a first elongated line that generally coincides with the first pivot axis. In some embodiments, the first pivot axis and the first elongated line may generally be parallel to the bottom edge 40.
With reference to
The joint 50C allows the two bottom flap regions 50A, 50B to pivot relative to each other to permit one bottom flap region to be positioned at one or more desired angles relative to the other bottom flap region. This selective pivotal movement between the first and second bottom flap regions 50A, 50B in conjunction with the ability to selectively pivot the first bottom flap region 50A relative to the base 15 along the seam 65 allows the bottom flap 50 to be selectively moved between an open configuration as shown in
When the bottom flap 50 is located in its open position, the second bottom flap region 50B may generally be located within the same plane as the first bottom flap region 50A, and the angle formed between the first bottom flap region 50A and the base 15 may be generally close to 180 degrees. In this opened state, the base 15 is generally not covered or otherwise hidden by the bottom flap 50. When the bottom flap 50 is located in its closed position, the second bottom flap region 50B may be positioned to extend away from the first bottom flap region 50A at a generally right angle, and the first bottom flap 50A may be positioned to extend away from the base 15 at a generally right angle. As a result, when the apparatus 5 is in the closed state depicted in
Turning to
In some embodiments, the inner face 85 and the outer face 90 of the bottom flap regions 50A, 50B may be formed using a fabric material (e.g., nylon, polyester, etc.), a shock absorbing material (e.g., Neoprene® foam), or some combination thereof. In some embodiments that utilize fabric material, the fabric material may enclose a foam or other shock absorbing material or system, rigid or relatively rigid materials (e.g., a polypropylene or polyethylene sheet), or some combination of shock absorbing and rigid or relatively rigid materials. In other embodiments, the inner face 85 and the outer face 90 of the regions 50A, 50B may be formed using rigid or relatively rigid materials (e.g., plastics such as acrylonitrile butadiene styrene (“ABS”), polycarbonate, or ABS/polycarbonate). The shock absorbing, rigid, or relatively rigid materials may be used to protect the device 10 contained in the enclosing volume 75.
A first securing feature 95, such as, for example, a hook-and-loop (e.g., Velcro™) material, may be joined to fabric material forming the outer face 90 of the second bottom flap region 50B or may be used in place of the fabric material forming the outer face 90 of the second bottom flap region 50B. At least a portion, up to the entirety, of the outer face 90 of the second bottom flap region 50B may covered or formed with the first securing feature 95. When the apparatus 5 is in a closed condition about the device 10, the first securing feature 95 of the bottom flap 50 faces forward.
Referring to
The second seam 115 may generally define a second pivot axis that the right flap 100 may be selectively pivoted around. The second seam 115 may further define a second elongated line that generally coincides with the second pivot axis. In some embodiments, the second pivot axis and the second elongated line may generally be parallel to the right edge 30.
The right flap 100 may be formed of multiple (e.g., five or more or less) right flap regions 100A-E joined together by a series of by a joints 100E-I, bending folds, or any other structures that allow each right flap region 100A-E to be selectively pivoted relative to an adjacent right flap region 100A-E. The right flap regions 100A-E may be generally rectangular in shape or any other pre-selected shape so long as the other pre-selected shapes allow each right flap region to be pivoted relative to an adjacent right flap region and to function at least as portions of the right and front walls of the enclosing volume 75. Each joint 100E-I may be formed via folding line stitches, living hinges, or any other structural mechanism that allows each right flap region 100A-E to be pivoted relative to adjacent right flap regions 100A-E.
The joints 100E-I allow the right flap regions 100A-E to fold relative to each other as needed such that a first group of regions (e.g., 100A-C) can be positioned at a desired angle (for example, a generally right angle) relative to a second group of regions (e.g., 100D-E). As a result, when the apparatus 5 is configured in the closed state depicted in
With reference to
In some embodiments, the inner face 130 and the outer face 135 of the right flap regions 100A-E may be formed using a fabric material (e.g., nylon, polyester, etc.), a shock absorbing material (e.g., Neoprene® foam), or some combination thereof. In some embodiments that utilize fabric material, the fabric material may enclose a foam or other shock absorbing material or system, rigid or relatively rigid materials (e.g., a polypropylene or polyethylene sheet), or some combination of shock absorbing and rigid or relatively rigid materials. In yet other embodiments, the inner face 130 and the outer face 135 of the right flap regions 100A-E may be formed using rigid or relatively rigid materials (e.g., plastics such as ABS, polycarbonate, or ABS/polycarbonate). When the right flap regions 100A-E incorporate or otherwise utilize any shocking absorbing materials or systems, the right flap regions 100A-E may be considered to be padded or cushioned right flap regions 100A-E. The shock absorbing, rigid, or relatively rigid materials may be used to protect the device 10 contained in the enclosing volume 75.
A second securing feature 140, such as, for example, a hook-and-loop (e.g., Velcro™) material, may be joined to the fabric or other material forming the inner face 130 of at least one of the right flap regions 100A-E, or may be used in place of the fabric or other material forming the inner face 130 of at least one of the right flap regions 100A-E. At least a portion, up to the entirety, of any inner facing portion of the right flap regions 100A-E that include the second securing feature 140 may covered or formed with the second securing feature 140. For example, in one embodiment, nearly the entirety of the right flap region 100E nearest the free end 105 of the right flap 100 is covered with the second securing feature 140. When the apparatus 5 is in a closed condition, the second securing feature 140 of region 100E overlaps and engages the first securing feature 95 of the bottom flap 50.
Turning back to
The third seam 160 may generally define a third pivot axis that the left flap 145 may be selectively pivoted around. The third seam 160 may further define a third elongated line that generally coincides with the third pivot axis. In some embodiments, the third pivot axis and the third elongated line may generally be parallel to the left edge 35. In some embodiments, the third pivot axis and the third elongated line may be positioned a pre-selected distance from, and generally parallel to, the second pivot axis and the second elongated line. The pre-selected distance may be set to be approximately equal to the minimum anticipated width for any portable electronic devices 10 that are intended to be positioned within the enclosing volume 75 of the apparatus 5. In some embodiments, the second pivot axis, the second elongated line, the third pivot axis, and the third elongated line may be generally transverse to the first pivot axis and the first elongated line.
Like the right flap 100, the left flap 145 may be formed of multiple (e.g., five or more or less) left flap regions 145A-E joined together by a series of by a joints 145F-I, bending folds, or any other structures that allow each left flap region 145A-E to be selectively pivoted relative to an adjacent left flap region 145A-E. The left flap regions 145A-E may be generally rectangular in shape or any other pre-selected shape so long as the other pre-selected shapes allow each right flap region to be pivoted relative to an adjacent right flap region and to function at least as portions of the right and front walls of the enclosing volume 75. Each joint 145F-I may be formed via folding line stitches, living hinges, or any other structural mechanism that allows each right flap region 145A-E to be pivoted relative to adjacent right flap regions 145A-E.
The joints 145F-I allow the left flap regions 145A-E to fold or pivot relative to each other as needed such that a first group of regions (e.g., 145A-C) may be positioned at a desired angle (for example, a generally right angle) relative to a second group of regions (e.g., 145D-E). As a result, when the apparatus 5 is in the closed state depicted in
Referring to
In some embodiments, the inner face 175 and the outer face 180 of the left flap regions 145A-E may be formed using a fabric material (e.g., nylon, polyester, etc.), a shock absorbing material (e.g., Neoprene® foam), or some combination thereof. In some embodiments that utilize fabric material, the fabric material may enclose foam or other shock absorbing material or system, rigid or relatively rigid materials (e.g., a polypropylene or polyethylene sheet), or some combination of shock absorbing and rigid or relatively rigid materials. In yet other embodiments, the inner face 175 and the outer face 180 of the left flap regions 145A-E may be formed using rigid or relatively rigid materials (e.g., plastics such as ABS, polycarbonate, ABS/polycarbonate). When the left flap regions 145A-E incorporate or otherwise utilize any shocking absorbing materials or systems, the left flap regions 145A-E may be considered to be padded or cushioned left flap regions 145A-E. The shock absorbing, rigid, or relatively rigid materials may be used to protect the device 10 contained in the enclosing volume 75.
A third securing feature 190, such as, for example, a hook-and-loop (e.g., Velcro™) material, may be joined to fabric or other material forming the inner face 175 of at least one of the left flap regions 145A-E, or may be used in place of the fabric or other material forming the inner face 175 of at least one of the right flap regions 145A-E. At least a portion, up to the entirety, of any inner facing portion of the left flap regions 145A-E that include the third securing feature 190 may covered or formed with the third securing feature 190. For example, in one embodiment, nearly the entirety of the left flap region 145E nearest the free end 150 of the left flap 145 is covered with the third securing feature 190. When the apparatus 5 is in a closed condition, the third securing feature 190 overlaps and engages the first securing feature 95 of the bottom flap 50.
When the three flaps 50, 100, 145 are positioned in the closed configuration, the inner surface of these three flaps 50, 100,145 may collectively define the enclosing volume 75. In some embodiments, the enclosing volume 75 may be sized so that a portion of the device 10 extends out of the enclosing volume 75. In such embodiments, this portion of the device 10 may be visible to the user while the remaining portion of the device 10 may be contained within the enclosing volume 75. The portion of the device 10 visible to the user may expose surfaces of the device 10 for the user to grasp to remove the device 10 from the enclosing volume 75 without positioning the flaps 50, 100, 145 in their open configuration. When a portion of the device 10 extends out of the enclosing volume 75, the portion extending out of the enclosing volume 75 may be less than the portion of the device 10 received within the enclosing volume 75. Further, in some embodiments, a substantial portion of the device 10 (e.g., approximately eighty percent or more) may be received in the enclosing volume 75. In yet other embodiments, the enclosing volume 75 may be sized so that the device 10 may be fully received within the enclosing volume 75. That is, the enclosing volume 75 may be sized such that no portion of the device 10 extends out of the enclosing volume 75.
Returning to
The free end may include a closed loop element 212, such as a circular or other shaped ring, that extends outwardly from the free end. The closed loop element 212 may provide an object for a user to grasp to facilitate separating the securing element 195 from the bottom flap 50.
The securing element 195 may be sufficiently flexible to allow the securing element 195 to bend as needed to secure the securing element 195 to the bottom flap 50 when the apparatus 5 is in the closed state depicted in
The securing element 195 may include an inner face 215 (shown in
The outer face 220 of the securing element 195 may simply be the surface of the material from which the securing element 195 is made (e.g., nylon, polyester, rubber, etc.). In some embodiments, a portion of the inner face 215 of the securing element 195 nearest the free end 200 may be a covered with a fourth securing feature 225, such as, for example, a hook-and-loop (e.g., Velcro™) material. When the apparatus 5 is in a closed condition about the device 10, the fourth securing feature 225 of the inner face 215 overlap and engage the first securing feature 95 of the bottom flap 50.
In one embodiment, the first securing feature 95 may be a female portion of a hook-and-loop material, and the second, third and fourth securing features 140, 190, 225 may each be a corresponding male portion. In other embodiments, the locations of the male and female hook-and-loop material portions may be reversed. In some embodiments, the securing features 95, 140, 190, 225 may be arrays of snaps or buttons. In yet other embodiments, the securing features may be arrangements of buckles, laces, or other fastening arrangements.
For a discussion of a method of employing the apparatus 5 to enclose or carry a portable electronic device 10, such as, for example, a laptop computer, reference is made to
Turning to
Referring to
Now referring to
With reference to
As can be understood from the preceding discussion, an apparatus for carrying a portable electronic device is described herein. The apparatus may include a back wall or a base. The apparatus may further include a front wall, a right wall, a left wall, or first, second, and third flaps, and a securing element attached to the back wall or base via respective seams that allow the securing element and front, right and left walls, or the first, second and third flaps, to be folded (e.g., in a hinge-like manner) over the back wall or base. Thus, when a device is placed on the back wall or base, the front wall or first flap may be folded up and over the device to sandwich the device between the back and front walls, or the base and the first flap. The right and left walls, or second and third flaps, may then be folded over the front wall, or first flap, and secured thereto in an adjustable and repeatable manner via a securing feature, such as, for example, Velcro™, that is on each of the walls, or flaps. The device is now enclosed within the enclosure volume defined by the back wall, right wall, left wall and front wall, or by the base, the first flap, the second flap and the third flap.
The securing element may then be folded over the front wall or the first flap and secured to the front wall or the first flap in an adjustable and repeatable manner via a securing feature, such as, for example, Velcro™. Thus, the size of the enclosure volume defined by the walls or the flaps may be custom fit for the size of the device by securing the walls or flaps to each other via securing features so that the walls or flaps snugly envelope the device. As a result, a user with devices 10 of multiple sizes and configurations can use a single apparatus 5 to meet the user's transportation needs for the devices.
The apparatus (e.g., a case or a sleeve) may be used to transport the device about in a protected manner or as a sleeve that is removably held in an outer case (e.g., brief case, backpack, etc.) for transporting the device. In some embodiments, the apparatus may be integrally incorporated into a case, a luggage piece, or the like (e.g., a brief case, a backpack, a suitcase, and so on). In such embodiments, the back wall or base may be a panel or other surface of the case, luggage piece or the like, and the front, right and left flaps or walls may be joined to the panel, see e.g.,
Although the protective or supportive containment apparatus is described herein with reference to illustrated embodiments, persons skilled in the art will recognize that changes may be made in form and detail without departing from the spirit and scope of the apparatus. Accordingly, the specific embodiments described herein should be understood as examples and not limiting the scope of the apparatus described and shown herein.
All directional references (e.g., upper, lower, upward, downward, left, right, leftward, rightward, top, bottom, above, below, vertical, horizontal, clockwise, and counterclockwise) are only used for identification purposes to aid the reader's understanding of the embodiments of the present disclosure, and do not create limitations, particularly as to the position, orientation, or use of the embodiments unless specifically set forth in the claims. Connection references (e.g., attached, coupled, connected, joined, and the like) are to be construed broadly and may include intermediate members between a connection of elements and relative movement between elements. As such, connection references do not necessarily infer that two elements are directly connected and in fixed relation to each other.
In some instances, components are described with reference to “ends” having a particular characteristic and/or being connected with another part. However, those skilled in the art will recognize that the present disclosure is not limited to components which terminate immediately beyond their points of connection with other parts. Thus, the term “end” should be interpreted broadly, in a manner that includes areas adjacent, rearward, forward of, or otherwise near the terminus of a particular element, link, component, part, member or the like. In methodologies directly or indirectly set forth herein, various steps and operations are described in one possible order of operation, but those skilled in the art will recognize that steps and operations may be rearranged, replaced, or eliminated without necessarily departing from the spirit and scope of the present disclosure. It is intended that all matter contained in the above description or shown in the accompanying drawings shall be interpreted as illustrative only and not limiting. Changes in detail or structure may be made without departing from the spirit of the apparatus and method for using the apparatus described herein.
This application claims the benefit, under 35 U.S.C. §119(e), of U.S. provisional application No. 61/377,768, entitled “Protective Case Or Sleeve For Carrying Portable Electronic Computing Devices Of A Wide Range Of Sizes” and filed on Aug. 27, 2010, the entirety of which is hereby incorporated herein by reference.
| Number | Name | Date | Kind |
|---|---|---|---|
| 3321120 | Cunningham | May 1967 | A |
| 4573573 | Favaro | Mar 1986 | A |
| 4941603 | Creamer et al. | Jul 1990 | A |
| 5209384 | Anderson | May 1993 | A |
| 5529184 | Sadow | Jun 1996 | A |
| 5988476 | Olerio | Nov 1999 | A |
| 6129254 | Yu | Oct 2000 | A |
| 6213267 | Miller | Apr 2001 | B1 |
| 6474524 | Ivarson et al. | Nov 2002 | B1 |
| 6491074 | Roegner | Dec 2002 | B1 |
| 6612432 | Motson | Sep 2003 | B2 |
| 6659320 | Alves et al. | Dec 2003 | B1 |
| 7036642 | Hoberman et al. | May 2006 | B2 |
| D531409 | Tullmann et al. | Nov 2006 | S |
| 7293649 | Gelphman et al. | Nov 2007 | B2 |
| 7487896 | Howard, Jr. et al. | Feb 2009 | B2 |
| 7540378 | Gallagher | Jun 2009 | B2 |
| 20050236452 | Rose et al. | Oct 2005 | A1 |
| 20070246386 | Nykoluk et al. | Oct 2007 | A1 |
| 20080202958 | Hanlen et al. | Aug 2008 | A1 |
| 20090230006 | Pidgley et al. | Sep 2009 | A1 |
| 20100089778 | Park | Apr 2010 | A1 |
| 20100089779 | Bowers | Apr 2010 | A1 |
| Number | Date | Country |
|---|---|---|
| 2255178 | Jun 1997 | CN |
| 0027728 | May 2000 | WO |
| Number | Date | Country | |
|---|---|---|---|
| 20120125956 A1 | May 2012 | US |
| Number | Date | Country | |
|---|---|---|---|
| 61377768 | Aug 2010 | US |
