Lace system for footwear

Information

  • Patent Grant
  • 7658019
  • Patent Number
    7,658,019
  • Date Filed
    Thursday, June 5, 2008
    16 years ago
  • Date Issued
    Tuesday, February 9, 2010
    14 years ago
Abstract
A snowboard boot incorporating techniques for making the process of tightening and loosening the laces of a snowboard boot more convenient for the wearer is disclosed. The snowboard boot may be provided with at least two independent lacing zones, the tensions of which are separately adjustable by the wearer. The zones may be secured by pulling on two laces, each of which tightens one of the two independent lacing zones. This arrangement allows the wearer to simultaneously tighten each zone, providing the wearer with the “feel” as though he or she is tightening a conventional single lacing zone snowboard boot. The laces may be simultaneously, yet independently secured by a lace lock at the upper and/or forward region of the snowboard boot. Slack may be created to facilitate loosening of the snowboard boot and easy removal of a foot from the snowboard boot by unhooking the lace from the lace guide without a corresponding distance of lace traveling through the lace lock. A release strap, graspable by the wearer, facilitates unhooking the lace.
Description
FIELD

This invention relates generally to tightening arrangements for articles of footwear, and more particularly to lacing systems for boots, including snowboard boots.


BACKGROUND

Boots conventionally comprise a lace threaded back and forth through the medial and lateral sides of the boot. Typically, the lace has two free ends protruding from the top portion of the boot, which a wearer can pull to tighten the boot around his or her foot and leg.


The same is true of many snowboard boots, particularly snowboard boots of the “soft” variety. Soft boots, as their name suggests, typically are comprised of softer materials (e.g., leather, fabric, and/or thin plastic components) that are more flexible than the relatively rigid, typically molded plastic shell of a hard boot. Soft boots are generally more comfortable and easier to walk in than hard boots, and are often favored by riders who engage in recreational, “freestyle” or trick-oriented snowboarding. Tightening a soft boot typically involves pulling on both ends of the lace and tying the lace in a knot or bow.


Frequently, the lace is sufficiently long, and threaded back and forth sufficiently many times, that tightening the lace merely by pulling on its free ends can be difficult due to friction between the lace and the portions of the boot (e.g., eyelets or lace guides) through which the lace is guided. Accordingly, a wearer often must tighten the lace progressively from the bottom to the top of the boot, culminating with the wearer pulling on the free ends of the lace. Despite these efforts, the wearer may still experience an undesirable tightness and discomfort in part of the boot. To address this concern, boots having “zone lacing” have been developed in which separate areas or “zones” of the boot may be independently tightened so that a wearer can adjust the level of tightness desired in a particular area. However, such lacing systems lack a convenient arrangement for tightening the laces.


Also, prior lacing systems, whether incorporating “zone lacing” or not, typically include laces having long free ends to permit grasping, pulling and tying the lace. The free ends can become untied and hang loose from the boot. Lacing systems with short lace ends would be beneficial; however, striking a balance between a sufficiently short lace and a one having enough length to provide slack facilitating removal of the boot is challenging.


SUMMARY

One illustrative embodiment is directed to a boot having a boot body with a lower region adapted to cover a foot of a wearer and an upper region adapted to cover at least a portion of a shin of the wearer. The boot also includes a first lacing zone comprising a first lace adapted to tighten a first region of the boot and a second lacing zone comprising a second lace adapted to tighten a second region of the boot. The first and second laces have portions that are disposed at the upper region. Both the first lace and the second lace are simultaneously securable at the upper region of the boot.


Another illustrative embodiment is directed to s boot having a boot body with a lower region adapted to cover a foot of a wearer, an upper region adapted to cover at least a portion of a shin of the wearer, and a rear side that faces backward when the boot is worn by the wearer. The boot also includes a first lacing zone comprising a first lace adapted to tighten a first region of the boot and a second lacing zone comprising a second lace adapted to tighten a second region of the boot, The first and second laces have portions that are disposed at the upper region. Both the first lace and the second lace are simultaneously securable at a location forward of the rear side to completely secure the boot body to the wearer.


A further illustrative embodiment is directed to a boot having a boot body, a plurality of lace guides coupled to the boot body, and at least one lace guided by the lace guides. At least one of the lace guides includes a lace hook and the at least one lace is adapted to be dislodged from the hook. The boot further includes at least one lace lock engageable with the at least one lace so that the boot may be tightened to the wearer, and a release strap coupled to the at least one lace. The release strap is graspable to remove the at least one lace from the hook to so as to create slack in the at least one lace.


Another illustrative embodiment is directed to a boot having a boot body, a plurality of lace guides coupled to the boot body, and at least one lace guided by the lace guides. At least one of the lace guides includes a lace hook and the at least one lace is adapted to be dislodged from the hook. The boot further includes at least one lace lock engageable with the at least one lace so that the boot may be tightened to the wearer. An amount of slack lace created upon removing the at least one lace from the hook is greater than an amount of slack lace that would otherwise be created upon disengaging the at least one lace from the at least one lace lock.


Yet another illustrative embodiment is directed to a boot comprising a boot body, a plurality of lace guides coupled to the boot body, and at least one lace guided by the lace guides. At least one of the lace guides includes a lace hook and the at least one lace is adapted to be dislodged from the hook. The boot further includes at least one lace lock engageable with the at least one lace so that the boot may be tightened to a wearer. The at least one lace is adapted to have a free-end portion extending from the at least one lace lock after the at least one lace has been tightened. An amount of slack lace provided by the free-end portion of the at least one lace upon disengaging the at least one lace from the at least one lock is insufficient to permit easy removal of the boot from the wearer and an amount of slack lace created upon removing the at least one lace from the lace hook aids in permitting easy removal of the boot from the wearer.


A further illustrative embodiment is directed to a method of using a boot. The boot has a boot body, a plurality of lace guides coupled to the boot body, at least one lace guided by the lace guides, and at least one lace lock cooperating with the at least one lace and engaging the at least one lace so that the at least one lace is holdable toward a tightening direction to tighten the boot body about the wearer. The at least one lace is adapted to have a free-end portion extending from the at least one lace lock after the at least one lace has been tightened. An amount of slack lace provided by the free-end portion of the at least one lace upon disengaging the at least one lace from the at least one lock may be insufficient to permit easy removal of the boot from the wearer. The method includes removing the at least one lace from at least one lace guide to create a length of slack in the at least one lace to aid in permitting removal of the foot from the boot, and drawing the lace through at least one of the other lace guides in a loosening direction.


Yet another illustrative embodiment is directed to a soft snowboard boot. The boot includes a boot body formed of flexible material, with the boot body having a lower region adapted to cover a foot of a rider and an upper region adapted to cover at least a portion of a shin of the rider. A plurality of lace guides is mounted to the boot body, and at least one of the lace guides comprising a lace hook. The boot also includes a first lacing zone having a first lace and a first lace lock mounted to the boot body in the upper region. The first lace is guided by the lace guides and cooperates with the lower region. The first lace is adapted to extend through and engage with the first lace lock to tighten the lower region. The first lace has a portion that extends from the lower region to the upper region so as to be engageable with the first lace lock. The boot further includes a second lacing zone having a second lace and a second lace lock mounted to the boot body in the upper region. The second lace is guided by the lace guides and the lace hook and cooperates with the upper region. The second lace is adapted to extend through and engage with the second lace lock to tighten the upper region. Both the first and second laces may be simultaneously secured by the first and second lace locks, respectively, in the upper region of the boot body forward of a rear side of the boot body. A release strap is coupled to the second lace and is graspable to remove the second lace from the hook so as to create slack in the second lace.


Various embodiments of the present invention provide certain advantages. Not all embodiments of the invention share the same advantages and those that do may not share them under all circumstances.


Further features and advantages of the present invention, as well as the structure of various embodiments of the present invention are described in detail below with reference to the accompanying drawings.





BRIEF DESCRIPTION OF THE DRAWINGS

Various embodiments of the invention will now be described, by way of example, with reference to the accompanying drawings, in which:



FIG. 1 is a perspective view of one illustrative embodiment of the boot of the present invention;



FIGS. 2 and 3 are perspective views of the boot of FIG. 1 with a slackened lace;



FIG. 4 is a side view of the boot of FIG. 1;



FIG. 5 is a side view of the boot of FIG. 1 showing the opposite side of the boot;



FIG. 6 is a plan view of an illustrative lace lock for use with the boot of FIG. 1;



FIG. 7 is cross-sectional view of the lace lock of FIG. 6, taken along line 7-7; and



FIG. 8 is a perspective view of an illustrative lace guide for use with the boot of FIG. 1.





DETAILED DESCRIPTION

The boot of the present invention includes arrangement(s) and/or technique(s) for making the process of tightening and loosening the laces of a boot more convenient for the wearer.


In one aspect, the boot is provided with at least two independent lacing zones, the tensions of which are separately adjustable by the wearer, thereby increasing comfort, flexibility and/or performance for the wearer. Thus, the wearer can choose (for example) for part of the boot to fit more tightly, and for another part of the boot to fit less tightly.


To provide the wearer of the boot of the present invention with the familiar sensation that accompanies tightening conventionally laced boots, in one embodiment, the zones may be tightened by pulling on two lace ends, each of which emerges from a lacing zone at about the same location typical of a conventionally laced boot, i.e., at the upper and/or forward region of the boot. In one embodiment, each zone is tightened with a separate lace. The sensation of tightening the boot by pulling on, and securing, two laces at the upper and/or forward region of the boot is similar to that accompanying the use of a conventional boot lace.


This arrangement allows the wearer to simultaneously tighten each zone, providing the wearer with a “feel” as though he or she is tightening a conventional boot having a single lacing zone, while still obtaining the benefits of tightening a particular zone to a desired tension. In one embodiment, the laces may be simultaneously, yet independently, secured. Although in this aspect, the lacing arrangement allows the wearer to simultaneously secure the laces, the wearer need not do so. Rather, the system of this embodiment merely provides the wearer with the option to simultaneously secure the laces of each zone. In an alternative embodiment, for example, the wearer may first secure the lower lace, after which the wearer secures the upper lace.


Another aspect of the invention relates to creating slack in a lace to facilitate loosening and removing the boot. In this aspect, a balance is struck between employing a relatively short lace end and providing sufficient lace slack to facilitate removing the boot. In one embodiment, the boot includes a lace lock for securing the end of the lace, and one or more lace guides formed as open hooks (also referred to herein as “speed hooks”), provided on the boot. The wearer can unhook the lace from the speed hook to create slack in the lace without a corresponding distance of lace traveling through the lace lock. In one embodiment, a pull tab or release strap, graspable by the wearer, is coupled to the lace to facilitate unhooking the lace from the speed hook. In this manner, lace slack may be created quickly and easily to facilitate removal of the boot. An additional benefit may be minimizing wear of the lace resulting from travel of the lace through the lace lock.


The above aspects of the invention may be employed in any suitable combination as the present invention is not limited in this respect. Also, any or all of the above aspects may be employed in a snowboard boot; however, the present invention is not limited in this respect, as aspects of the invention may be used on any type of footwear, including boots and snowboard boots. Various aspects and embodiments of the invention will now be described in more detail with respect to the accompanying drawing figures. The invention is not, however, limited to the aspects and embodiments shown.


A boot 2 (which may be formed as a snowboard boot) in accordance with one embodiment of the present invention that incorporates the above-discussed aspects is illustrated in FIGS. 1-5. The boot 2 has a boot body 3 (also referred to as a boot upper) and a sole 4 (typically formed of rubber). Boot body 3 has a lower region 6 adapted to cover the foot of a wearer, and an upper region 7 adapted to cover at least a portion of the wearer's shin. Boot body 3 includes a tongue opening 18 disposed in a shin-to-toe direction, and a tongue 19 disposed within the tongue opening 18, and attached at a lower end portion to the boot body 3, in a conventional manner known in the art.


The boot 2 shown in the figures is configured for the right foot of a wearer, and comprises medial side 10 and lateral side 12. (Herein, the term “lateral side” is used to refer to the side of a boot facing outward and away from the wearer, i.e., the left side of the left boot and the right side of the right boot, when worn by the wearer. The term “medial side” is used to refer to the side of a boot facing inward toward the wearer's other foot, i.e., the right side of the left boot and the left side of the right boot, when worn by the wearer.) Upper lace 14 and lower lace 16 are threaded through medial and lateral sides 10 and 12 of boot 2. Upper lace 14 and lower lace 16 can be used to tighten boot 2 (and, correspondingly, to reduce the width of tongue opening 18 between medial side 10 and lateral side 12).


In the embodiment shown in FIGS. 1-5, the boot comprises two lacing zones—upper lacing zone 20 and lower lacing zone 22. Upper lace 14 is provided for tightening upper lacing zone 20 in the upper region 7 of boot body 3, and lower lace 16 is provided for tightening lower lacing zone 22 in the lower region 6 of boot body 3.


As discussed above, the use of multiple lacing zones provides a wearer with the ability to separately tighten different parts of the boot to desired tension(s). In the example shown in FIGS. 1-5, a wearer may tighten upper lacing zone 20 to one tension with upper lace 14 and lower lacing zone 22 to another tension with lower lace 16. The invention is not limited in this regard, however, as the boot may be divided into lacing zones in any desired manner, and need not be divided into an upper lacing zone and a lower lacing zone. Other two-zone configurations are also contemplated, and will occur to one of ordinary skill in the art. Likewise, more than two lacing zones (in any desired configuration) may be employed for additional flexibility, comfort and/or performance.


In one embodiment, lower lace 16 is anchored to the boot at position 24 toward the bottom of lower lacing zone 22 (e.g., in the toe-area of the boot), and is threaded through external lace guides 26, before entering internal lace guide tube or channel 32 disposed within the wall of medial side 10 of boot 2, through intake eyelet 34. Lower lace 16 extends through internal lace guide tube 32 and exits at an exit eyelet 36 (FIG. 5), to the upper region 7 of boot 2, where it is threaded through lace lock 38 (FIG. 5). In an analogous fashion, upper lace 14 is anchored to the boot at position 50 toward the top of upper lacing zone 20 in the upper region 7 of boot 2 (e.g., in the shin-area of the boot), and is threaded through lace guide(s) 26 and over hook 54 (described in more detail below), before entering internal lace guide tube or channel 58 disposed within the wall of the lateral side 12 of the boot 2, through intake eyelet 60. Upper lace 14 extends through internal lace guide tube 58 and exit eyelet 62, and is then threaded through lace lock 64, which is provided on the upper region 7 of boot 2. The invention is not limited, however, as other suitable configurations of laces, lace guides and lace locks may be employed.


For example, fewer or more lace guides may be provided for guiding each of the laces. The lace guides may be formed in any desired configuration. For example, they may comprise tubes to receive a lace, hooks, eyelets, posts, and any other configuration suitable to guide the lace through the lacing zone. While one such combination of internal and external lace guides in shown in FIGS. 1-5, other combinations are within the scope of the invention and will be apparent to one of ordinary skill in the art.


The invention also is not limited to any particular location for anchoring an end of a lace to the boot. For instance, instead of anchoring one end of upper lace 14 at the top of upper lacing zone 20, in another embodiment one end of upper lace 14 may be anchored at the bottom of upper lacing zone 20, or in any other appropriate location. The same holds true with respect to the anchoring of lower lace 16. Likewise, the lace locks 38 (FIG. 5) and 64 (FIGS. 1-4) need not necessarily be located at the top portion of the boot as shown; the lace locks may be located elsewhere, such as on a front portion of the boot.


In the embodiment illustrated in FIGS. 1-5, each of the laces 14 and 16 includes a free-end portion, graspable by the wearer, to tighten the lace. In one embodiment, the free-end portion may include a portion of lace that is looped back onto itself to create a handle to facilitate pulling the lace by a wearer. In particular, upper lace 14 includes handle 66, and lower lace 16 includes handle 42.


In operation, the wearer can pull on handles 66 and 42, which draws the laces in a tightening direction “A”, to tighten the upper and lower lacing zones 20 and 22 sequentially or simultaneously. When each lacing zone has reached a desired tightness, the wearer may lock the respective laces in their corresponding lace locks, though which the laces are threaded. As described above, this action permits the user to achieve the sensation of tightening a conventional boot by pulling up on two free ends of laces. In addition, the need to progressively tighten a single lace from the bottom to the top of the boot is obviated, as is the need to tie a knot or bow at the top of the boot. In short, the wearer can tighten and secure the laces of the boot with a single motion.


To hold the lace in place, a lace lock may be employed. One particular embodiment of a lace lock is illustrated in FIGS. 6-7 and is shown as a cleat. The lace lock 38, 64 comprises a body 98 having two opposing walls, i.e., an inner wall 100 and an outer wall 102, between which is disposed a channel 104. The lace lock comprises a front 106 (which faces forward when the lace lock is mounted to the boot) and a back 108 (which faces backward when lace lock is mounted to the boot).


The inner wall 100 and outer wall 102 of the lace lock each comprise a plurality of locking teeth 110, which cooperate to form the cleat as depicted in FIG. 6. The depth “d” of the teeth 110 increases from the front 106 to the back 108 of the lace lock. Accordingly, the teeth 110 converge to form a wedge or “V” shaped cleat in the channel 104, within which a lace may be secured. The invention is not limited in this regard, as any appropriate arrangement of teeth, or any appropriate mechanism for securing the lace within the lace lock, may be employed.


As shown in FIG. 7, the teeth 110 closest to a bottom portion 112 of the lace lock begin at or close to the front edge 106 of the lace lock, whereas the teeth 110 closest to a top portion 114 of the lace lock are shorter, and begin farther from the front edge 106 of the lace lock. Accordingly, the teeth 110 closest to the bottom portion 112 of the lace lock are engaged first by the lace as the wearer pulls the lace from the front edge 106 of the lace lock toward the back end 108 of the lace lock, after which the lace engages the teeth 110 closest to the top portion 114 of the lace lock. The invention is not limited in this regard, however, and other configurations of the teeth 110 are contemplated.


The lace lock is secured to boot 2 at its inner wall 100 with fasteners (not shown) passing through holes 116. The invention is not limited in this regard, however, as other mechanisms for securing the lace lock to the boot may be employed, such as adhesives or sewing.


It should be appreciated that the invention is not limited to a particular arrangement for securing the lace, as any suitable mechanism may be employed. For example, the lace lack may be configured as a spring-loaded barrel lock, a capstan, a cam lock, post, or any other suitable device or arrangement.


To further facilitate securing the lace once the lace has been tightened, the lace lock may be oriented in a position so that a wearer can tighten and secure the laces in a single motion. In one embodiment, after the wearer has tightened the laces to a desired tension, the wearer simply pulls the laces toward the back edge 108 of the lace lock, which causes then to be trapped within the “V”-shaped cleat formed by teeth 110. This may be accomplished by orienting the lace lock on the boot in a manner such that channel 104 in the lace lock is substantially parallel to the tongue opening 18 (as shown in FIGS. 1-5). Alternatively, the lace lock may be configured such that upon relieving the tension in the lace, the lace automatically is held within the lace lock. The invention is not limited in this regard, however, as other single or multi-step locking arrangements may be employed.


The handles may be formed in a manner to relieve pressure points on the hand of the wearer as he or she pulls on the handle. In one example, each handle 42, 66 includes a tube through which the lace is passed. A fabric material may be placed over the tube, or if no tube is employed, the fabric may be placed over the lace. Suitable padding may also be employed.


In one embodiment, it may be advantageous to designate for the wearer to which zone the lace belongs. Thus, as shown in FIG. 1, handle 66 includes the label “UPPER ZONE” embroidered on or otherwise applied to the handle. Similarly, handle 42 includes the label “LOWER ZONE” embroidered on or otherwise applied to the handle. The present invention is not limited in this respect, as other suitable designations may be employed, such as color coded or differently shaped handles. Suitable designations may alternatively be placed at or on the side of the boot. In addition, no designations need be employed, as the present invention is not limited in this respect.


The handles 42 and 66 of laces 16 and 14 (as well as any excess lace after tightening) may be stowed to reduce excess lace that might otherwise hang off the boot and get in the wearer's way. In one embodiment, as shown in FIGS. 1-5, the boot may include pockets 44 and 70. In FIG. 4, handle 66 is shown stowed in pocket 44. In FIG. 5, handle 42 is shown stowed in pocket 70. In one embodiment, pockets 44 and 70 comprise elongate openings in the wall of the boot body 3, at or near the top of the boot 2, and extend in a substantially vertical direction. In another embodiment, the pocket may extend at an angle relative to the vertical position, as shown in FIG. 5.


It should be appreciated, however, that the invention is not limited in this regard, as pockets need not be provided (or, if provided, may be located elsewhere on the boot or in a different configuration).


In one embodiment, although not shown, a rotary closure device may be used in place of the lace lock. With such a device, the free ends of the laces may be threaded into the body of the device and wrapped around a spool as the spool is rotated to achieve the desired tension and the use of a pocket may not be necessary. Such closure devices are well known for use in other applications, such as for use with a cable tightening system to replace conventional laces in an athletic shoe, and examples of such rotary closure devices are described in U.S. Pat. Nos. 3,738,027; 3,808,644; 4,433,456; 4,616,524; 4,660,300; 4,748,726; 4,761,859; 4,787,124; 4,796,829; 4,841,649; 4,884,760; 4,961,544; 5,042,177; 5,065,481; 5,150,537; 5,152,038; 5,157,813; 5,325,613; 5,600,874; 5,606,778; 5,638,588; and 5,669,116; and European patent applications EP056,953 and EP264,712. It should be appreciated that the present invention is not limited to the use of any particular type of closure device, as any mechanism that is capable of taking up slack in the lace can be used in connection with the present invention.


In another embodiment, also not shown, a lace recoil device may be employed. The free end of the lace is anchored to a self-winding spool such that after the desired tension is applied to the lace, the recoil action of the spool would take up excess lace. Again, with such a device the use of a pocket may not be necessary. The recoil device may include a lock to hold the lace at a desired tension.


Returning to the embodiment shown in FIGS. 1-5, the lace guides 26 may have semi-circular or generally “C” shaped guiding surfaces. An enlarged rear perspective view of one lace guide 26 is shown in FIG. 8, with the guiding surface bearing reference numeral 200. As shown in FIG. 8, the lace guide is partially closed, by closure portions 202, to capture the lace and prevent the lace from dislodging from the lace guide when tension in the lace is relieved. The invention is not limited in this regard, however, and any appropriate configuration of the lace guide to trap the lace may be used. For example, the lace guide may comprise a tube. In another example, the back portion of the lace guide may comprise a piece of flexible material to block the lace from becoming dislodged when tension in the lace is relieved. Other configurations are also contemplated and will readily occur to one of ordinary skill in the art.


In one embodiment, the radius of curvature “r” of the guide surface provides a gradual reversal of direction for the lace. Such a gradual reversal reduces kink points and reduces the chance that the lace will bind in the guide. In this manner, the efficiency with which the force applied to the lace is translated to the tightening tension on the lace is maximized. That is, drag or other losses are minimized. In one embodiment, the radius of curvature “r” is approximately ½ inch. Other suitable radii of curvature, or other suitable shapes for the lace guide, may be employed as the present invention is not limited in this respect.


The lace guides are made from a low-friction material, such as teflon, to reduce frictional drag on the laces. The invention is not limited in this regard, however, as the lace guides can be made from any appropriate material, such as metal or fabric.


As noted above, another aspect of the invention relates to creating slack in a lace to facilitate loosening and removing the boot. In this aspect, an open hook 54 (also referred to as “speed hook 54”) is provided on the boot body 3, the speed hook 54 being adapted to permit the lace to dislodge from the speed hook 54 when desired by the wearer. As depicted in FIGS. 1-4, the speed hook 54 is provided in the upper lacing zone 20 for cooperation with the upper lace 14. The invention is not limited in this regard, however, as a speed hook 54 may be used in connection with the lower lacing zone 22 (or one or more other lacing zones) as well. The hook 54 may be configured in any suitable manner and formed of any suitable material, as the present invention is not limited in this respect. In one embodiment, the hook 54 is formed of a material similar to the other lace guides, but is smaller, where the radius of curvature is either the same (e.g., approximately ½ inch) or smaller (e.g., ¼ or ⅛ inch).


Further, as shown, the hook 54 is disposed between two lace guides 26 such that, upon dislodging the lace from the hook 54, the ends of lace on either side of the hook are still captured by the other lace guides. In this manner, upon re-tightening the boot, the wearer need only to re-engage the lace with the hook 54, rather than with several of the other lace guides 26. However, the present invention is not limited in this respect, and the lace hook 54 may be positioned in other suitable locations and/or additional lace hooks may be employed. In other embodiments, the lace may be removable from any one or more of the lace guides.


A pull tab 120 (also referred to as a “release strap”) is provided on the lace (in this case upper lace 14) and includes a graspable portion to facilitate movement of lace 14 onto and off of the speed hook 54. In one embodiment, the release strap is formed from a strip of material, for example, fabric, that is stitched onto the lace. The strap may be attached to the lace in a manner that allows it to slide along the lace. In one embodiment, a portion of the strip of material is folded over the lace and back onto itself to form a loop that surrounds the lace, and sewn closed. The invention is not limited in this regard, however, as the release strap may be formed using other techniques, or may be formed into other structures, such as a solid piece of material with a channel formed therein to receive the lace. Alternatively, absent such structures, the wearer may move the lace onto and off of the hook with a finger.


In this aspect, the wearer unhooks the lace 14 from the speed hook 54 (with or without release strap 120, as noted above), as shown in FIG. 2, to create slack in the lace 14. This slack may be transferred to adjacent lace portions 14a, 14b, as shown in FIG. 3, enabling the wearer to more easily remove the boot from the foot by, for example, moving the tongue away from the wearer's leg, which is now largely unrestricted due to the slack in the lace.


By allowing the lace to become dislodged from the lace hook 54, the need for the lace to pass back through the lace lock is minimized. As shown in FIG. 1, the amount of lace “L” at the free end of lace 14 that extends generally between the lace lock 64 and position 122 of handle 66 (i.e., where the lace 14 re-unites with itself after being formed into a handle loop) is minimal so that a large amount of lace is not hanging off the boot or otherwise need to be stowed. This length of lace (“L”) is less than an amount of lace typically desired to produce enough slack lace to facilitate easy removal of the boot. That is, upon disengaging the lace 14 from the lace lock 64 and pulling the lace 14 back through the lace lock 64 in a loosening direction “B”, the lace will only move until position 122 abuts the lace lock 64. No additional amount of lace 14 can pass through lace lock 64 in direction “B”. Therefore, to create additional slack in the lace 14, the lace 14 is unhooked from hook 54, as shown in FIGS. 2 and 3, to aid the wearer in removing the boot.


In one embodiment, the amount of slack created in the lace 14 by unhooking the lace 14 from the speed hook 54 (“S1” and “S2”, as shown in FIG. 2) exceeds an amount of lace “L” available to pass through the lace lock 64 in the loosening direction “B”. In one embodiment, this amount of lace (“S1” and “S2”) creates sufficient slack by itself that unlocking the lace 14 from the lace lock 64 is not necessary for removal of the boot 2. In another embodiment, the amount of lace (“S1” and “S2”) plus the additional amount “L” provided upon unlocking the lace 14 form the lace lock 64 produces sufficient slack to facilitate boot removal.


In one embodiment, the amount of lace “L” at the free-end of the lace 14 is approximately 3 inches. The amount of lace “S1” and “S2” together is approximately 9 inches. However, it should be appreciated that the present invention is not limited in this respect, as other suitable lengths may be employed.


The laces 14 and 16 can be implemented in any of numerous ways, and the present invention is not limited to any particular implementation. The laces 14 and 16 should be sufficiently strong to resist the substantial forces that can be encountered when snowboarding, and in this respect may require greater strength than the laces employed in conventional footwear such as athletic shoes. The laces 14 and 16 can be formed from a monofilament or a multistrand line. In accordance with one illustrative embodiment of the invention, the laces 14 and 16 are formed of a low-friction material capable of resisting a high tensile force without elongation to minimize frictional engagement between the laces 14 and 16 and the lace guides 26, and thereby facilitate even pressure distribution throughout the respective lacing zones 20 and 22. While not limited to any particular material or any particular form (i.e., woven, braided, monofilament, etc.), examples of materials that can be used for the laces 14 and 16 include various types of fabrics, plastics, metals, Kevlar and/or Spectra Cord.


The boot 2 may be configured as a soft boot employing soft, flexible materials such as leather, fabrics, plastics (e.g., non-rigid plastics) or other suitable natural or manmade materials. A liner (not shown) may also be employed and inserted into the interior region of the boot, however, the present invention is not limited in this respect. A tongue stiffener, whether removable or not, may be employed to stiffen an otherwise flexible tongue. An example of a tongue stiffener may be found in commonly assigned U.S. Pat. No. 6,360,454, which is hereby incorporated herein by reference.


In the embodiments shown, the laces 14 and 16 follow a meandering path and do not cross over themselves, unlike many conventional laces that cross over themselves while “criss-crossing” the tongue opening 18. The invention is not limited in this regard, however, and other lacing patters may be used as will be apparent to one of ordinary skill in the art. For example, a lacing pattern in which the laces cross over themselves may be employed.


It should be understood that the foregoing description of the invention is intended merely to be illustrative thereof and that other embodiments, modifications, and equivalents of the invention are within the scope of the invention recited in the claims appended hereto. Further, although each embodiment described above includes certain features, the invention is not limited in this respect. Thus, one or more of the above-described or other features of the boot or methods of use, may be employed singularly or in any suitable combination, as the present invention is not limited to a specific embodiment.

Claims
  • 1. A snowboard boot comprising: a snowboard boot body;a plurality of lace guides coupled to the snowboard boot body, at least one of the lace guides comprises a lace hook;at least one lace guided by the lace guides, the at least one lace adapted to be dislodged from the hook;at least one lace lock engageable with the at least one lace so that the snowboard boot may be tightened to a wearer, anda release strap coupled to the at least one lace, the release strap being graspable by the wearer to remove the at least one lace from the hook to so as to create slack in the at least one lace.
  • 2. The snowboard boot of claim 1, wherein the release strap is graspable to remove the at least one lace from the hook so as to create slack in the at least one lace without the necessity of the at least one lace disengaging the at least one lace lock.
  • 3. The snowboard boot of claim 1, wherein the at least one lace lock comprises a body that is adapted to receive a portion of the at least one lace therethrough, the at least one lace adapted to be tightened upon pulling the at least one lace in a tightening direction, wherein an amount of slack lace created upon removing the at least one lace from the hook is greater than an amount of lace available to pass through the at least one lace lock in a loosening direction.
  • 4. The snowboard boot of claim 1, wherein the snowboard boot body further comprises a lower, foot region adapted to cover a foot of a wearer, and an upper, shin region adapted to cover at least a portion of a shin of the wearer, the snowboard boot further comprising: a lower lacing zone comprising a lace adapted to tighten the lower region; andan upper lacing zone comprising a lace adapted to tighten the upper region.
  • 5. The snowboard boot of claim 4, wherein the lace of the upper zone and the lace of the lower zone may be tightened independently to achieve different levels of tightness in the upper lacing zone and the lower lacing zone.
  • 6. The snowboard boot of claim 4, wherein the lace of the lower zone is free of a release strap.
  • 7. The snowboard boot of claim 4, wherein the at least one lace lock comprises a first lace lock adapted to secure the lace of the upper zone and a second lace lock adapted to secure the lace of the lower zone.
  • 8. The snowboard boot of claim 1, wherein the at least one lace lock comprises a lace cleat having a body including opposing walls with locking teeth formed on each wall, the walls converging to form a wedge-shaped channel, the channel and locking teeth cooperating to hold a portion of the at least one lace within the body of the cleat.
  • 9. The snowboard boot of claim 8, wherein the snowboard boot includes a tongue opening disposed in a shin-to-toe direction and a tongue disposed within the opening, wherein the cleat is mounted to the snowboard boot body such that the wedge-shaped channel is substantially parallel to the tongue opening.
  • 10. The snowboard boot of claim 1, wherein the snowboard boot body comprises a wall, a lace channel is disposed in the wall, a portion of the at least one lace is disposed within the lace channel.
  • 11. The snowboard boot of claim 1, wherein the at least one lace is laced in a lacing pattern characterized in that the at least one lace follows a meandering path and does not cross over itself.
  • 12. The snowboard boot of claim 1, further comprising a handle coupled to the at least one lace, the handle being graspable by the wearer to tighten the at least one lace.
  • 13. The snowboard boot of claim 4, further comprising a first handle coupled to the lace of the upper zone, the first handle being graspable by the wearer to tighten the lace of the first zone, and a second handle coupled to the lace of the lower zone, the second handle being graspable by the wearer to tighten the lace of the lower zone.
  • 14. The snowboard boot of claim 13, wherein the snowboard boot body and the first and second handles cooperate to stow the first and second handles on the snowboard boot body.
  • 15. The snowboard boot of claim 14, wherein the snowboard boot body comprises at least one pocket adapted to receive at least one of the first and second handles.
  • 16. The snowboard boot of claim 15, wherein the at least one pocket comprise an elongate opening disposed in a wall of the snowboard boot body at the upper region and extending in a substantially vertical orientation.
  • 17. The snowboard boot of claim 16, wherein the at least one pocket comprises first and second pockets, the first pocket is adapted to receive the first handle, and the second pocket is adapted to receive the second handle, and wherein the first pocket is disposed on a first side of the snowboard boot body and the second pocket is disposed on a second side of the snowboard boot body.
  • 18. The snowboard boot of claim 4, wherein the lace of the lower zone comprises a first anchor end attached to the snowboard boot adjacent a toe-area.
  • 19. The snowboard boot of claim 18, wherein the lace of the upper zone comprises a second anchor end attached to the snowboard boot adjacent a shin-area.
  • 20. The snowboard boot of claim 4, further comprising an indicator to indicate to the wearer that a lace corresponds to a particular lacing zone.
  • 21. The snowboard boot of claim 20, wherein the indicator comprises a first indicator on the lace of the lower zone, wherein the first indicator comprises the word “LOWER”.
  • 22. The snowboard boot of claim 20, wherein the indicator comprises a second indicator on the lace of the second zone, wherein the second indicator comprises the word “UPPER”.
  • 23. The snowboard boot of claim 4, wherein the lace of the upper zone and the lace of the second zone are sequentially or simultaneously securable at the upper region.
  • 24. The snowboard boot of claim 1, wherein the snowboard boot body has a tongue opening disposed in a shin-toe direction and a tongue disposed within the tongue opening, wherein the lace of each of the upper and lower lacing zones crosses over the tongue more than once.
  • 25. The snowboard boot of claim 4, wherein each zone is tightened with a separate lace.
  • 26. The snowboard boot of claim 4, wherein the lace of the lower zone has a portion that is disposed in the upper region and wherein the lace of the upper zone has a portion that is disposed in the upper region.
CROSS-REFERENCE TO RELATED APPLICATIONS

This application is a continuation and claims the benefit under 35 U.S.C. § 120 of prior application Ser. No. 11/286,956, filed Nov. 23, 2005, now U.S Pat. No. 7,401,423, titled LACE SYSTEM FOR FOOTWEAR which in turn is a continuation of prior application Ser. No. 10/732,834, filed Dec. 10, 2003, now U.S. Pat. No. 7,281,341, titled LACE SYSTEM FOR FOOTWEAR, each of which is herein incorporated by reference in its entirety.

US Referenced Citations (283)
Number Name Date Kind
375677 Kyle Dec 1887 A
547424 Eaton Oct 1895 A
586770 Kempshall Jul 1897 A
599906 Kempshall Mar 1898 A
654388 Diemer Jul 1900 A
714191 Kempshall Nov 1902 A
737769 Preston Sep 1903 A
742206 Maurer Oct 1903 A
795119 Harlow Jul 1905 A
1053529 Neary Feb 1913 A
1090438 Worth et al. Mar 1914 A
1242774 Curry Oct 1917 A
1246724 Daggett Nov 1917 A
1282539 Carlson Oct 1918 A
1292975 Valade Jan 1919 A
1371637 Meredith Mar 1921 A
1429657 Trawinski Sep 1922 A
1466075 Triay Jr. Aug 1923 A
1530713 Clark Mar 1925 A
1608214 Janke Nov 1926 A
2019587 Tyrell Nov 1935 A
2022554 Williams Nov 1935 A
2109751 Matthias et al. Mar 1938 A
2284814 Gookin Jun 1942 A
2345057 Marinetti Mar 1944 A
2674021 Cataldi Apr 1954 A
2871537 Hickerson Feb 1959 A
3106003 Herdman Oct 1963 A
3122805 Hakim Mar 1964 A
3132394 Russell May 1964 A
3176362 Tames Apr 1965 A
3193950 Liou Jul 1965 A
3221384 Aufenacker Dec 1965 A
3229340 Herdman Jan 1966 A
3239903 Steinberg Mar 1966 A
3265032 Hume Aug 1966 A
3321815 Herdman May 1967 A
3333304 Daddona Aug 1967 A
3430303 Perrin et al. Mar 1969 A
3473198 Meier Oct 1969 A
3546796 Adams Dec 1970 A
3574900 Emery Apr 1971 A
3618232 Shnuriwsky Nov 1971 A
3631613 Brettell Jan 1972 A
3703775 Gatti Nov 1972 A
3710486 Revny Jan 1973 A
3715782 Newell Feb 1973 A
3731350 Diebold May 1973 A
3812811 Rodriguez May 1974 A
3834048 Maurer Sep 1974 A
3908238 Panicci Sep 1975 A
3934346 Sasaki et al. Jan 1976 A
3988810 Emery Nov 1976 A
4081916 Salisbury Apr 1978 A
4084532 Feder Apr 1978 A
4120077 Fink Oct 1978 A
4125918 Baumann Nov 1978 A
4142307 Martin Mar 1979 A
4227322 Annovi Oct 1980 A
4245408 Larsen et al. Jan 1981 A
4261081 Lott Apr 1981 A
4309033 Parker, Jr. et al. Jan 1982 A
4333649 Vaughn et al. Jun 1982 A
RE31052 Adams Oct 1982 E
4361938 Emery Dec 1982 A
4391049 Parisotto Jul 1983 A
4397253 Uecker et al. Aug 1983 A
4408403 Martin Oct 1983 A
4426756 Herdman Jan 1984 A
4433456 Baggio Feb 1984 A
4442613 Dobbin Apr 1984 A
4458432 Stempski Jul 1984 A
4519625 Luitz et al. May 1985 A
4536975 Harrell Aug 1985 A
4538367 Adams Sep 1985 A
4592154 Oatman Jun 1986 A
4616524 Bidoia Oct 1986 A
4622763 Adams Nov 1986 A
4630383 Gamm Dec 1986 A
4633548 Siskind et al. Jan 1987 A
4633599 Morell et al. Jan 1987 A
4638579 Gamm Jan 1987 A
4640025 DeRenzo Feb 1987 A
4653204 Morell et al. Mar 1987 A
4660300 Morell et al. Apr 1987 A
4698922 Sartor Oct 1987 A
4715094 Herdman Dec 1987 A
4726126 Bernhard Feb 1988 A
4727660 Bernhard Mar 1988 A
4766682 Malloy, III Aug 1988 A
4787124 Pozzobon et al. Nov 1988 A
4799297 Baggio et al. Jan 1989 A
4802291 Sartor Feb 1989 A
4805270 Kimbrough Feb 1989 A
4856207 Datson Aug 1989 A
4858282 DuPont Aug 1989 A
4877167 McNemar Oct 1989 A
4884760 Baggio et al. Dec 1989 A
4893419 Arieh Jan 1990 A
4896403 Vouros Jan 1990 A
4937952 Olivieri Jul 1990 A
4937953 Walkhoff Jul 1990 A
4956897 Speedie Sep 1990 A
4961544 Bidoia Oct 1990 A
4969242 Carlton, Sr. Nov 1990 A
4999888 Miller Mar 1991 A
4999889 LeCouturer Mar 1991 A
5001817 De Bortoli et al. Mar 1991 A
5003711 Nerrinck et al. Apr 1991 A
5012598 Baggio et al. May 1991 A
5016327 Klausner May 1991 A
5027482 Torppey Jul 1991 A
5029371 Rosenblood et al. Jul 1991 A
5042119 Williams Aug 1991 A
5042120 Nichols Aug 1991 A
5042177 Schoch Aug 1991 A
5048204 Tacchetto et al. Sep 1991 A
5067736 Olson et al. Nov 1991 A
5074013 Arnold et al. Dec 1991 A
5088166 Lavinio Feb 1992 A
5092614 Malewicz Mar 1992 A
5117567 Berger Jun 1992 A
5129130 Lecouturier Jul 1992 A
5152038 Schoch Oct 1992 A
5157813 Carroll Oct 1992 A
5158428 Gessner et al. Oct 1992 A
5158559 Pozzobon et al. Oct 1992 A
5170573 Clinch Dec 1992 A
5171033 Olson et al. Dec 1992 A
5177882 Berger Jan 1993 A
5181331 Berger Jan 1993 A
5189818 Skaja Mar 1993 A
5190301 Malewicz Mar 1993 A
5205055 Harrell Apr 1993 A
5249377 Walkhoff Oct 1993 A
5271130 Batra Dec 1993 A
5295315 Osawa et al. Mar 1994 A
5319868 Hallenbeck Jun 1994 A
5319869 McDonald et al. Jun 1994 A
5325613 Sussmann Jul 1994 A
5327662 Hallenbeck Jul 1994 A
5331752 Johnson et al. Jul 1994 A
5341583 Hallenbeck Aug 1994 A
5345697 Quellais Sep 1994 A
5349764 Posner Sep 1994 A
5351420 Pozzobon et al. Oct 1994 A
5353483 Louviere Oct 1994 A
5355596 Sussmann Oct 1994 A
5357691 Hyde et al. Oct 1994 A
5388315 Jones Feb 1995 A
5412883 Wulf et al. May 1995 A
5421106 Emrick Jun 1995 A
5425161 Schoch Jun 1995 A
5463822 Miller Nov 1995 A
5467511 Kubo Nov 1995 A
5467537 Aveni et al. Nov 1995 A
5471769 Sink Dec 1995 A
5477593 Leick Dec 1995 A
5485688 Gorza et al. Jan 1996 A
5502902 Sussmann Apr 1996 A
5511325 Hieblinger Apr 1996 A
5526585 Brown et al. Jun 1996 A
5535531 Karabed et al. Jul 1996 A
5537763 Donnadieu et al. Jul 1996 A
5564203 Morris Oct 1996 A
5566474 Leick et al. Oct 1996 A
5566477 Mathis et al. Oct 1996 A
D375677 Gaultier Nov 1996 S
5570522 Olson et al. Nov 1996 A
D376041 Nitz Dec 1996 S
D377410 Crowley Jan 1997 S
5606778 Jungkind Mar 1997 A
5640785 Egelja Jun 1997 A
5647104 James Jul 1997 A
5649342 D'Andrade et al. Jul 1997 A
5651197 James Jul 1997 A
5651198 Sussmann Jul 1997 A
5671517 Gourley Sep 1997 A
5675872 Emery Oct 1997 A
5692319 Parker et al. Dec 1997 A
5701688 Crowley Dec 1997 A
5718021 Tatum Feb 1998 A
5737854 Sussmann Apr 1998 A
5755044 Veylupek May 1998 A
5761777 Leick Jun 1998 A
5765841 Johnson et al. Jun 1998 A
5775011 Reitano Jul 1998 A
5778500 Illingworth Jul 1998 A
5791021 James Aug 1998 A
5791068 Bernier et al. Aug 1998 A
5839210 Bernier et al. Nov 1998 A
5848457 Silagy Dec 1998 A
5873183 Posner Feb 1999 A
5906057 Borsoi May 1999 A
5909946 Okajima Jun 1999 A
5913483 Polk Jun 1999 A
5918352 Galbreath Jul 1999 A
5934599 Hammerslag Aug 1999 A
5937542 Bourdeau Aug 1999 A
5947487 Keleny et al. Sep 1999 A
5956823 Borel Sep 1999 A
5966841 Barret Oct 1999 A
5979080 Borsoi Nov 1999 A
5983530 Chou Nov 1999 A
5996256 Zebe, Jr. Dec 1999 A
6000111 Deskins et al. Dec 1999 A
6029323 Dickie et al. Feb 2000 A
6029375 Borel Feb 2000 A
6032387 Johnson Mar 2000 A
6038791 Cornelius et al. Mar 2000 A
6070886 Cornelius et al. Jun 2000 A
6070887 Cornelius et al. Jun 2000 A
6073370 Okajima Jun 2000 A
6076241 Borel Jun 2000 A
6102412 Staffaroni Aug 2000 A
6119318 Maurer Sep 2000 A
6119372 Okajima Sep 2000 A
6128801 Adzick et al. Oct 2000 A
6148489 Dickie Nov 2000 A
6202953 Hammerslag Mar 2001 B1
6219891 Maurer et al. Apr 2001 B1
D442771 Haas May 2001 S
D442772 Dietrich May 2001 S
6233790 Carothers May 2001 B1
6240657 Weber et al. Jun 2001 B1
6289558 Hammerslag Sep 2001 B1
6295704 Rivas Oct 2001 B1
6305103 Camargo Oct 2001 B1
6324773 Gaither Dec 2001 B1
6324774 Zebe, Jr. Dec 2001 B1
6327750 Muldowney et al. Dec 2001 B1
6338186 Kleinmann Jan 2002 B1
D453413 Tsujino et al. Feb 2002 S
6357093 Takahashi Mar 2002 B1
6367169 Barret Apr 2002 B1
6378230 Rotem et al. Apr 2002 B1
6405457 Basso et al. Jun 2002 B1
6416074 Maravetz et al. Jul 2002 B1
6427361 Chou Aug 2002 B1
6457260 Roelofs Oct 2002 B1
6467193 Okajima Oct 2002 B1
6467194 Johnson Oct 2002 B1
6467195 Pierre et al. Oct 2002 B2
6473999 Fellouhe Nov 2002 B2
6502329 Silagy Jan 2003 B1
6513211 Fisher Feb 2003 B1
6532688 Bouvier Mar 2003 B2
6560898 Borsoi et al. May 2003 B2
6568103 Durocher May 2003 B2
6568104 Liu May 2003 B2
6601323 Tsujino et al. Aug 2003 B2
6729000 Liu May 2004 B1
6775928 Grande et al. Aug 2004 B2
6802439 Azam et al. Oct 2004 B2
6952890 Blakeslee Oct 2005 B1
7281341 Reagan et al. Oct 2007 B2
7293373 Reagan et al. Nov 2007 B2
7392602 Reagan et al. Jul 2008 B2
7401423 Reagan et al. Jul 2008 B2
20010001906 Borosi May 2001 A1
20010002518 Morrow et al. Jun 2001 A1
20010007178 Pierre et al. Jul 2001 A1
20010025434 Fellouhe Oct 2001 A1
20020002781 Bouvier Jan 2002 A1
20020046476 Snyder Apr 2002 A1
20020050076 Borsoi et al. May 2002 A1
20020078597 Burt Jun 2002 A1
20020083620 Tsujino et al. Jul 2002 A1
20020083621 Durocher Jul 2002 A1
20020095750 Hammerslag Jul 2002 A1
20020144435 Shepherd Oct 2002 A1
20020170205 Shepherd Nov 2002 A1
20020174570 Proctor Nov 2002 A1
20030034365 Azam et al. Feb 2003 A1
20030041478 Liu Mar 2003 A1
20030051374 Freed Mar 2003 A1
20030093882 Gorza et al. May 2003 A1
20030177661 Tsai Sep 2003 A1
20030226284 Grande et al. Dec 2003 A1
20040078999 Freed Apr 2004 A1
20050097780 Pellegrini May 2005 A1
20060053658 Voughlohn Mar 2006 A1
20060174516 Peruzzo Aug 2006 A1
Foreign Referenced Citations (57)
Number Date Country
3626837 Feb 1988 DE
3813470 Nov 1989 DE
19624553 Jan 1998 DE
20116755 Jan 2002 DE
101 16 779 Jul 2002 DE
0018074 Oct 1980 EP
0255869 Feb 1988 EP
0393380 Oct 1990 EP
0395536 Oct 1990 EP
0395537 Oct 1990 EP
0465222 Jan 1992 EP
0465223 Jan 1992 EP
0466459 Jan 1992 EP
0503877 Sep 1992 EP
0679346 Nov 1995 EP
0717942 Jun 1996 EP
0734662 Oct 1996 EP
0857501 Aug 1998 EP
0858819 Aug 1998 EP
0858821 Aug 1998 EP
0923965 Jun 1999 EP
0937487 Aug 1999 EP
0848917 Apr 2000 EP
1219195 Jul 2002 EP
1182409 Jun 1959 FR
1349832 Dec 1963 FR
1404799 May 1965 FR
2689732 Oct 1993 FR
2726440 May 1996 FR
2766068 Jan 1999 FR
2 770 379 A May 1999 FR
2814919 Apr 2002 FR
1010686 Nov 1965 GB
1463362 Feb 1977 GB
2041765 Sep 1980 GB
2046826 Nov 1980 GB
7-19152 Jun 1932 JP
50-22459 Jul 1975 JP
1-124103 Aug 1989 JP
5-58008 Jan 1992 JP
7-33106 Dec 1993 JP
2001-197905 Jul 2001 JP
2002-360309 Dec 2002 JP
2003-518397 Jun 2003 JP
2004-41666 Feb 2004 JP
WO 9511602 May 1995 WO
WO 9531119 Nov 1995 WO
WO 9532030 Nov 1995 WO
WO 9728713 Aug 1997 WO
WO 9837782 Sep 1998 WO
WO 9909850 Mar 1999 WO
WO 9915043 Apr 1999 WO
WO 0053045 Sep 2000 WO
WO 0108525 Feb 2001 WO
WO 0147386 Jul 2001 WO
WO 02051511 Jul 2002 WO
WO 2004093589 Nov 2004 WO
Related Publications (1)
Number Date Country
20080235995 A1 Oct 2008 US
Continuations (2)
Number Date Country
Parent 11286956 Nov 2005 US
Child 12133677 US
Parent 10732834 Dec 2003 US
Child 11286956 US