Antislipping Patents (Class 36/7.6)
  • Patent number: 11751637
    Abstract: A roofing shoe traction chassis system has a roofing shoe traction chassis with a toe strap, foot strap and heel strap coupled thereto for securing a shoe to the chassis. The chassis also has a detachable traction sheet configured for attachment to the base of the roofing shoe chassis. The roofing shoe traction chassis can be quickly donned over a pair of shoes allowing a user to wear a more comfortable and better ventilated shoe. The detachable traction sheet can be changed out as the traction layer is worn. An exemplary roofing shoe traction chassis has a strap support that extends up from a support plate and has a toe strap and foot strap aperture to receive and retain the toe and heel straps respectively. The support plate may also have post apertures for receiving and retaining heel strap posts.
    Type: Grant
    Filed: May 2, 2022
    Date of Patent: September 12, 2023
    Inventor: Davin Riera
  • Patent number: 11464277
    Abstract: An apparatus can comprise a main body configured to cover a portion of a lower side of a shoe, a plurality of cleats extending from a lower side of the main body, and at least one strap coupled to the main body and configured to extend over a shoe.
    Type: Grant
    Filed: April 22, 2019
    Date of Patent: October 11, 2022
    Assignee: Minimal Gear LLC
    Inventor: Gilad Frank Nachmani
  • Patent number: 11425965
    Abstract: A track and field shoe can include an upper and a sole structure. The upper includes a medial side portion, a lateral side portion, and a toe box portion. The sole structure is attached to the upper and includes a spike plate. The spike plate has an anterior portion, a posterior portion, a plurality of spikes, and a plurality of rails. The spikes extend in an inferior direction from the anterior portion of the spike plate and are configured for engaging a track surface. The rails extend in a superior direction from the anterior portion of the spike plate and extend over an exterior surface of the toe box portion of the upper, and the rails comprise longitudinal axes that extend in a superior/inferior direction.
    Type: Grant
    Filed: May 22, 2020
    Date of Patent: August 30, 2022
    Assignee: NIKE, Inc.
    Inventors: Cailee M. Caldwell, Ingrid Hagen-Keith, Austin J. Orand
  • Patent number: 11317680
    Abstract: A roofing shoe traction chassis system has a roofing shoe traction chassis with a toe strap, foot strap and heel strap coupled thereto for securing a shoe to the chassis. The chassis also has a detachable traction sheet configured for attachment to the base of the roofing shoe chassis. The roofing shoe traction chassis can be quickly donned over a pair of shoes allowing a user to wear a more comfortable and better ventilated shoe. The detachable traction sheet can be changed out as the traction layer is worn. An exemplary roofing shoe traction chassis has a strap support that extends up from a support plate and has a toe strap and foot strap aperture to receive and retain the toe and heel straps respectively. The support plate may also have post apertures for receiving and retaining heel strap posts.
    Type: Grant
    Filed: December 14, 2020
    Date of Patent: May 3, 2022
    Inventor: Davin Riera
  • Patent number: 11122853
    Abstract: Footwear includes structural features that may provide one or more of the following features or functions: (a) help “lock” the wearer to the ground under torsional forces induced in the leg/foot (e.g., by a golf swing or other activities); (b) help provide stable support, e.g., at the medial heel and/or lateral forefoot areas; (c) help support and prevent undesired distortion of the footwear upper, e.g., when torsional forces are applied; and/or (d) help provide a very stable and secure feel and fit by securing across the instep portion of the foot, e.g., in a forward lateral-to-rear medial direction (e.g., between medial heel and lateral forefoot sidewall supports).
    Type: Grant
    Filed: January 23, 2019
    Date of Patent: September 21, 2021
    Assignee: NIKE, Inc.
    Inventors: Mark J. Smith, Adam R. Welliver
  • Patent number: 10974127
    Abstract: Snowshoes are provided which include a footwear supporting plate, a front binding device and a rear binding device. The plate has a lattice-like, essentially flat configuration formed by a plurality of hollow prismatic structures partially superimposed on one another. The main axis (x) of each hollow prismatic structure may be inclined by an angle (?) between 200 and 70° relative to a middle plane of the plate, in such a manner that lower edges of the hollow prismatic structures form sharp edges which allow the plate to grip snow and inner surfaces of the hollow prismatic structures offer high resistance to penetration into snow allowing for the distribution of weight of a user over a wide contact surface, thereby ensuring good floatability.
    Type: Grant
    Filed: October 15, 2015
    Date of Patent: April 13, 2021
    Inventor: Robert Erwin Behrens
  • Patent number: 10653206
    Abstract: A sole designed for attachment to an article of footwear, made of a hard polymer outsole connection plate affixed to a flexible polymer outsole that has a series of threaded imbed anchors housed therein for the attachment of various designs of interchangeable cleats. The cleats reside in detents formed on planar channels across the width of the outsole and extend above a series of tapered raised pads formed on the bottom face of the outsole.
    Type: Grant
    Filed: June 25, 2018
    Date of Patent: May 19, 2020
    Inventor: Brian Chaney
  • Patent number: 10342294
    Abstract: According to one embodiment, a removable tightening device is described. The tensioning mechanism is removably coupleable with an article without damaging the article so that upon removal, the coupling of the tensioning mechanism with the article is unrecognizable or not readily detectable. The tensioning mechanism is operable with a tension member to maintain a tension of the tension member and thereby maintain a tightness of the article. The tension member is guided along a path about the article, via one or more guide members, and is tensionable, via the tensioning mechanism, to tighten the article.
    Type: Grant
    Filed: December 23, 2016
    Date of Patent: July 9, 2019
    Assignee: Boa Technology Inc.
    Inventors: Kristopher C. Lovett, Christopher H. Converse, Clark Morgan, Michael J. Nickel
  • Patent number: 10232222
    Abstract: A kit includes a pair of items of footwear; wherein each item of footwear includes a brace that is arranged to be releasably secured to at least part of a wearer's leg and/or foot; a platform that is operably connected to the brace; and a securing mechanism for releasably securing a balancing member, or a stack of balancing members, underneath the platform. The kit includes balancing members for each item of footwear so that one balancing member can be replaced with another balancing member that has a smaller ground-contacting area, or so that it can have another balancing member with a smaller ground-contacting area stacked underneath it.
    Type: Grant
    Filed: January 21, 2014
    Date of Patent: March 19, 2019
    Assignee: SkiA Designs Limited
    Inventors: Martin James Wallace Breach, Alexander James Start, Peter Viner
  • Patent number: 9572394
    Abstract: Foot-supporting elements for articles of footwear or other products may include: (a) a first diagonally-oriented plate that extends from a lateral heel location of an article of footwear to a medial forefoot location of the article of footwear; and (b) a second diagonally-oriented plate that extends from a medial heel location of the article of footwear to a lateral forefoot location of the article of footwear. These foot-supporting elements may be utilized in foot-receiving devices that may include: (a) a foot-covering member (such as an upper); and (b) a foot-supporting element engaged with the foot-covering member.
    Type: Grant
    Filed: March 1, 2013
    Date of Patent: February 21, 2017
    Assignee: NIKE, Inc.
    Inventors: Joshua P. Heard, Robert M. Bruce, John Hurd, Alexandre Baudouin, Kevin W. Hoffer, James Molyneux
  • Patent number: 9445965
    Abstract: A method of treating spine pathologies and related outcomes in a subject in need thereof is provided. The method includes placement of at least two calibrated, differential disturbances or protuberances under the subject's feet.
    Type: Grant
    Filed: December 10, 2012
    Date of Patent: September 20, 2016
    Assignee: APOS-MEDICAL AND SPORTS TECHNOLOGIES LTD.
    Inventors: Amit Mor, Avi Elbaz
  • Patent number: 9364047
    Abstract: A traction overshoe which enables a user to safely cover the footwear while sitting or standing. The traction overshoe has left side flaps, right side flaps and a tension cord system. The left side flaps and the right side flaps are contiguous with the front and back supports of the traction overshoe and a tension cord system is attached to the right side flaps and the left side flaps. In use, a user grips a bottom grip-bar and moves the left side flaps and the right side flaps into vertical positions. The user then slips the footwear into the device and moves the bottom grip-bar in an upward position to secure the left side flaps and the right side flaps against the footwear.
    Type: Grant
    Filed: July 3, 2014
    Date of Patent: June 14, 2016
    Inventor: Frank L Fackler
  • Patent number: 9254018
    Abstract: Provided is an automated shoe closure including a sole and a plurality of motors disposed in the sole. The motors are configured to expand or contract one or more shoe panels. The shoe panels each include one or more connectors configured to connect the shoe panels to each other when the shoe panels are in an expanded state. A plurality of slits are disposed in the sole. Each of the slits is configured to expand and contract a corresponding shoe panel therethrough. An expansion button is disposed in the sole. A retraction button is disposed in a side of the sole, and a charging port is disposed in the sole.
    Type: Grant
    Filed: May 13, 2014
    Date of Patent: February 9, 2016
    Inventor: Derrick Bliss
  • Patent number: 9161593
    Abstract: A heel traction aid (HTA) includes a gripping pad and a traction device having an upper surface, where the gripping pad includes a receiving bore penetrating the gripping pad and a raised ring encircling the receiving bore. The traction device is disposed in receiving bore such that the upper surface is disposed below the raised ring. The HTA includes a heel cup attached to lateral edges of the gripping pad, a first strap attached to the heel cup and including a first hook, and a second strap attached to the heel cup and including first holes. The first and second straps have elasticity sufficient to maintain tension when a heel of a shoe or foot is positioned in a concavity formed by the gripping pad and the contoured heel cup and when the first hook is engaged with one of the first holes of the second strap.
    Type: Grant
    Filed: August 17, 2011
    Date of Patent: October 20, 2015
    Assignee: Sure Foot Corporation
    Inventors: Jon C. Larson, Van B. Larson
  • Patent number: 8991069
    Abstract: A removable traction device for wearing over an article of footwear includes an outer peripheral band; a traction area defined within the outer peripheral band and including a removable traction member; and a plurality of resilient connecting strands extending between the traction area and the outer peripheral band. The traction area includes an exterior ground engaging surface and an interior surface opposite thereto and the interior surface includes a peripheral flange defining a traction member receiving pocket, such that the removable traction member is insertable into and removable from the traction member receiving pocket.
    Type: Grant
    Filed: May 18, 2012
    Date of Patent: March 31, 2015
    Assignee: Implus Footcare, LLC
    Inventor: Merrick Jones
  • Patent number: 8661713
    Abstract: Provided is a shoe outsole and/or a sheet material which can be used to fabricate such an outsole (among other things), formed of a base material that includes a number of indentations and lower-extending portions. Small particles are bonded to at least some of the indentations, but the lower-extending portions predominantly are uncoated with such small particles. Also provided are methods and techniques for manufacturing such outsoles and sheet material, as well as shoes incorporating such outsoles.
    Type: Grant
    Filed: September 8, 2006
    Date of Patent: March 4, 2014
    Assignee: Dynasty Footwear, Ltd.
    Inventors: John Koo, Jonathan Goldberg
  • Patent number: 8661708
    Abstract: A crampon capable of being worn on general footwear for golf shoes and climbing irons is disclosed, in which because of small volume and light load, the crampon has a cheap and conveniently portable advantage.
    Type: Grant
    Filed: October 31, 2007
    Date of Patent: March 4, 2014
    Assignee: Wookyung Tech Co., Ltd.
    Inventor: Wan-Do Park
  • Publication number: 20130312278
    Abstract: An assembly comprising an article of footwear, such as a boot, and a crampon, the assembly comprising a binding for retaining the crampon on the boot. The binding comprises an assembly device that comprises a first element affixed to the boot and a second element affixed to the crampon, the first and second elements being structured for assembly with one another in two phases, a first phase in which one of the elements guides the other element along a translational movement, from an initial point to a transition point, and a second phase in which one of the elements guides the other element along a rotational movement in the area of the transition point, the first phase and the second phase being mutually exclusive.
    Type: Application
    Filed: May 21, 2013
    Publication date: November 28, 2013
    Applicant: SALOMON S.A.S.
    Inventor: François GIRARD
  • Patent number: 8291613
    Abstract: A cleated sandal for use in athletic activities comprising a flexible sole and plural attachment straps for mounting the sandal on a foot or footwear of a wearer. A plurality of cleats for contacting a ground surface extend from a bottom side of the flexible sole at its toe and heel ends. The plural attachment straps include two vertical and two horizontal attachment straps each having a bottom surface and a top surface. The bottom and top surfaces of each of the attachment straps are covered with suction mesh hairs which cling to each other when overlaid; hence, allowing portions of each strap to connect to each other to form secure loops and to tighten the sandal on the foot or footwear of the wearer. The attachment straps also are additionally connected to the sole through respective aligned buckles.
    Type: Grant
    Filed: August 25, 2006
    Date of Patent: October 23, 2012
    Inventor: Kenneth Dean Cunningham
  • Patent number: 8256140
    Abstract: Provided is a personal traction device that includes a traction mechanism that is very comfortable underfoot, while providing excellent traction over slippery surfaces as well as excellent long-term wear.
    Type: Grant
    Filed: January 6, 2010
    Date of Patent: September 4, 2012
    Assignee: Kako International Inc.
    Inventors: Kate Lagrand, Marjory A. Wall
  • Patent number: 8250779
    Abstract: A sandal type overshoe for releasable mounting on primary footwear, e.g., a boot or shoe, is disclosed. The overshoe comprises a sole with a forefoot region, a midfoot region, and a hindfoot portion. Toe, side and heel anchor pieces are disposed along the perimeter of the sole and accept two removable lace pieces, one of which connects the front anchor piece and the side anchor pieces, and one of which connects the heel anchor pieces to the side anchor pieces. The sole portion has a ground engaging surface that can provide enhanced traction or other functionality.
    Type: Grant
    Filed: April 13, 2009
    Date of Patent: August 28, 2012
    Assignee: Joneric Products, Inc.
    Inventors: Jordan David Bell, Jonathan Marc Bell
  • Patent number: 8172730
    Abstract: A stilt device having a front extendible strut and a cooperating rear extendible strut pivotally connected to a base member and a shoe plate, the front and rear extendible struts being disposed in a parallelogram relationship. The rear extendible strut has a rear member and a rear extendible member. A leg support pole is supported at one end by the rear extendible member and extends for its other end to be connected to a workman's leg to provide stability and to thereby enable the replacement of height determining extendible members, the distance from the shoe plate being a common vertical difference that is unchanged the extension of the extendible struts or by components thereof. For stilts of increased height the springs of the damping assemblies are selectively stiffened.
    Type: Grant
    Filed: December 1, 2009
    Date of Patent: May 8, 2012
    Assignee: Emmert Second Limited Partnership
    Inventor: Raymond L. Emmert
  • Patent number: 7845094
    Abstract: An ice gripping footwear attachment includes a base having an upper surface for engaging the bottom of the footwear and a lower surface carrying a grit material that is frictionally engagable with an ice covered surface. Forward, intermediate and rearward fastening straps are secured to the base. The forward strap is wrapped across the footwear such that it extends rearwardly in a crisscrossed pattern. The intermediate strap is wrapped and fastened over the forward strap. The rearward strap is then secured across the wearer's ankle or heel to securely fasten the attachment to the footwear.
    Type: Grant
    Filed: January 30, 2009
    Date of Patent: December 7, 2010
    Inventor: Thomas Gaskins, Jr.
  • Publication number: 20100257750
    Abstract: A sandal type overshoe for releasable mounting on primary footwear, e.g., a boot or shoe, is disclosed. The overshoe comprises a sole with a forefoot region, a midfoot region, and a hindfoot portion. Toe, side and heel anchor pieces are disposed along the perimeter of the sole and accept two removable lace pieces, one of which connects the front anchor piece and the side anchor pieces, and one of which connects the heel anchor pieces to the side anchor pieces. The sole portion has a ground engaging surface that can provide enhanced traction or other functionality.
    Type: Application
    Filed: April 13, 2009
    Publication date: October 14, 2010
    Applicant: JONERIC PRODUCTS, INC.
    Inventors: Jordan David Bell, Jonathan Marc Bell
  • Publication number: 20100251562
    Abstract: An apparatus, system, and method are disclosed for a shoe cover. The shoe cover is useful for muffling sound of the wearer. The apparatus contains a padded sole, an encasing material, vertical straps, an attachment mechanism on the straps, and a replaceable cover. The replaceable cover can be substituted when the replaceable cover becomes worn or when a different type of cover is desirable.
    Type: Application
    Filed: April 2, 2010
    Publication date: October 7, 2010
    Inventor: Michael Barrick
  • Publication number: 20100139118
    Abstract: A crampon capable of being worn on general footwear for golf shoes and climbing irons is disclosed, in which because of small volume and light load, the crampon has a cheap and conveniently portable advantage.
    Type: Application
    Filed: October 31, 2007
    Publication date: June 10, 2010
    Inventor: Wan-Do Park
  • Patent number: 7703218
    Abstract: A traction device for a boot has a felt platform with a toe section and a heel section, and a heel extension attached to the heel section. Cording passes through two pairs of passages in each of the toe section and the heel extension. On each side, the cording passing from a toe section passage to a heel extension passage forms a side stringer, and the cord extending beyond the heel extension forms a cord extension segment. Loops are provided on each side stringer, and the cord extension segments are each passed through one of the loops before being cinched to tighten the cording against the boot. Preferably, a single length of cord is employed and the loops are tied into the side stringers. It is also preferred for the toe section passages to be positioned on ear extensions that protrude from a body of the felt platform.
    Type: Grant
    Filed: September 7, 2006
    Date of Patent: April 27, 2010
    Inventor: Richard C. Burgess
  • Publication number: 20090249653
    Abstract: Interchangeable slip-on golf overshoes for fitting over conventional footwear includes (a) a first golf overshoe being sufficiently symmetrical from a top view to be interchangeably worn over a shoe on a left foot and over a shoe on a right foot of a golfer, the first golf overshoe having at least a sole, a toe component and a heel component and having a portion of the first golf overshoe being stretchable; and the first golf overshoe having a predetermined pattern of spikes on the bottom of its sole; and, (b) a second golf overshoe being sufficiently symmetrical from a top view to be interchangeably worn over a shoe on a left foot and over a shoe on a right foot of a golfer, the second golf overshoe having at least a sole, a toe component and a heel component and having a portion of the second golf overshoe being stretchable; and the second golf overshoe having a predetermined pattern of spikes on the bottom of its sole.
    Type: Application
    Filed: April 7, 2008
    Publication date: October 8, 2009
    Inventors: Peter J. Gunthel, Frederic L. Peace
  • Patent number: 7594666
    Abstract: A skate assembly has a boot having a substantially completely open base with a sole plate of more rigid material than the boot secured over the open base. The base has an opening extending along at least substantially the entire length of the boot from the heel to the toe, with side rims extending along opposite sides of the base opening. The sole plate may be releasably or permanently secured to the boot.
    Type: Grant
    Filed: June 13, 2006
    Date of Patent: September 29, 2009
    Assignee: Sunshine Distribution, Inc.
    Inventor: Andreas C. Wegener
  • Publication number: 20090071034
    Abstract: A sole device or attachment for shoes, boots, athletic shoes, and similar footwear. The device comprises an undershoe attachment made of a lightweight material, including but not limited to rubber or foam, or a combination thereof. The device may come in various sizes to correspond to footwear sizes currently known, and may be of larger size than the corresponding footwear. The device may be attached to the sole of footwear directly by operation of spikes on the bottom of the footwear, or may be secured by one or more straps that extend across the footwear, or some combination thereof.
    Type: Application
    Filed: July 18, 2008
    Publication date: March 19, 2009
    Inventors: William Christopher Lotterhos, Richard N. Linder, JR.
  • Publication number: 20090049711
    Abstract: The overshoe for running is a protective and padded overshoe adapted to be worn over a running shoe or the like in order to provide additional shock absorption and padding for running on hard surfaces, such as pavement, cement and the like. The overshoe is in the form of a unitary body formed from a resilient material. The unitary body includes a sole having opposed upper and lower surfaces, and a peripheral wall extending from the periphery of the upper surface of the sole. The peripheral wall and the sole define an open interior region adapted for receiving the shoe. The overshoe is preferably dimensioned and configured to snugly receive the shoe so that the overshoe is removably secured thereto during use. An additional releasable fastener may be added for further securing the unitary body to the shoe.
    Type: Application
    Filed: May 21, 2008
    Publication date: February 26, 2009
    Inventor: John S. Finch
  • Publication number: 20080301974
    Abstract: An overshoe that covers a footwear structure for protecting a walking surface. The overshoe includes a base and an upstanding portion, which extends around at least a portion of the base. A protrusion extends inwardly from an inner surface of the upstanding portion. The protrusion engages the footwear structure for releasably retaining the overshoe to the footwear structure.
    Type: Application
    Filed: February 3, 2006
    Publication date: December 11, 2008
    Applicant: 311 INDUSTRIES, CORP.
    Inventors: David Bowen, Christopher Cataldo
  • Patent number: 7461467
    Abstract: Disclosed is a safety crampon with generality put on, which encircles front/rear/left/right sides of shoes around a spike pad to elastically press and grip them so that the crampon is not come off from the shoes, thereby ensuring safety. Also, the safety crampon has excellent wearing feeling and walking owing to characteristics of an elastic material, can be put on all kinds of shoes including mountain-climbing boots, high-heeled shoes, and rubber shoes, allows a user to safely climb a mountain and safely walk on a skiddy icy road of the ground, and has a conveniently portable advantage.
    Type: Grant
    Filed: October 4, 2005
    Date of Patent: December 9, 2008
    Assignees: Wookyung Tech Co., Ltd., KPM Global Co.
    Inventors: Wan Do Park, Chang Moo Jung
  • Patent number: 7409782
    Abstract: An anti-slip overshoe includes a contoured outer band, a gripping pad disposed interior to the contoured outer band for providing traction, and a web structure connecting the gripping pad to the contoured outer band. The gripping pad can include gripping ridges for providing traction. The gripping pad can include ridge spaces for providing traction. The gripping pad can include removable grip devices for providing traction. A method of making an ant-slip overshoe includes providing a contoured outer band, providing a gripping pad disposed interior to the contoured outer band, and providing a web structure connecting the gripping pad to the contoured outer band.
    Type: Grant
    Filed: February 18, 2005
    Date of Patent: August 12, 2008
    Inventors: Jon C. Larson, Van B. Larson
  • Publication number: 20080022555
    Abstract: Disclosed is a foldable anti-slip overshoe for wearing over an item of footwear, comprising a lower section for placement beneath at least a portion of the sole of the footwear, and an upper section comprising a toe section, a heel section, and a vamp section, configured to fit over at least a portion of each of the toe, heel and vamp of the footwear respectively, wherein a lower surface of the overshoe is provided with at least one anti-slip feature.
    Type: Application
    Filed: July 28, 2006
    Publication date: January 31, 2008
    Inventors: Oren Mor, Daniel Mor
  • Publication number: 20080000102
    Abstract: A covering for a shoe, the covering including: a body portion corresponding to a body portion of the shoe; a bottom portion corresponding to at least one of a sole and heel of the shoe; and one or more spikes arranged on the bottom portion, the one or more spikes being configured for one of football, baseball, soccer and golf.
    Type: Application
    Filed: July 1, 2006
    Publication date: January 3, 2008
    Inventors: Johangir S. Rastegar, Thomas Spinelli
  • Publication number: 20080000104
    Abstract: A traction element for a shoe is provided. The traction element including: a base element; at least one spike associated with the base element; and a securing element for securing the base element to the shoe; wherein the at least one spike is configured for one of football, baseball, soccer and golf.
    Type: Application
    Filed: July 1, 2006
    Publication date: January 3, 2008
    Inventors: Jahangir S. Rastegar, Thomas Spinelli
  • Patent number: 7290358
    Abstract: An apparatus, in its first, second, and third embodiments, that is intended to be temporarily attached to the soles of ski boots, whenever the wearer is not attached to skis and desires the ability to comfortably walk or desires protection for the soles of the ski boots. The first three embodiments generally comprise of sandal-like soles made of a resilient, elastic, springy material, which aids in the natural walking action by alternately compressing and releasing, adding energy to the step, thereby aiding walking while wearing ski boots. A fourth embodiment is made by altering the ski boots themselves so that the heel (41) and toe (40) sections of the boot are hinged (42) to the underside of the boot, and contain a spring that adds energy to each step taken by the user. The hinged sections are pinned against the boot while skiing.
    Type: Grant
    Filed: December 2, 2002
    Date of Patent: November 6, 2007
    Inventor: Charles Jelinek Francis
  • Publication number: 20070163146
    Abstract: An antiskid attachment for footwear is described wherein the traction increases when lateral skidding occurs. The attachment comprises of a multitude of skid-resisting elements positioned between the shoe sole and the surface, and flexible linkage used to ensure appropriate positioning of the elements allowing natural walking and running movement and easy application with virtually any type of footwear. The attachment ensures improved traction on ice and snow, thereby reducing the possibility of slipping during inclement weather, without danger to the user or damage to surfaces when used on ice-free surfaces. The inventive universal method of traction enhancement using polyhedral elements is explained as deployed in, but not limited to, the present footwear attachment.
    Type: Application
    Filed: January 14, 2007
    Publication date: July 19, 2007
    Inventor: Sergei BROVKIN
  • Patent number: 7191549
    Abstract: Provided is a shoe having a bottom surface that is adjacent to the ground in normal use. A sole, which is sufficiently durable and/or strong for long-term outdoor use, forms at least a portion of the bottom surface, and an upper portion extends above the sole. A plurality of small material particles are bonded to at least a portion of the bottom surface of the shoe.
    Type: Grant
    Filed: May 15, 2003
    Date of Patent: March 20, 2007
    Assignee: Dynasty Footwear, Ltd.
    Inventor: John C. S. Koo
  • Patent number: 7089688
    Abstract: A traction system for use on conventional flexible footwear is provided that includes both toe and heel sections that are independently attached to a wearer's footwear and are connected with a flexible linkage. The flexible linkage allows the traction system to move with the normal movement of the flexible footwear so as to provide a natural walking and running movement. The traction system provides numerous benefits over previously available crampon and other spiked traction systems, including flexibility, light weight, practical usability with a wide variety of footwear types—including highly flexible footwear such as running shoes, compactability, and ready adjustability between different sizes and types of footwear.
    Type: Grant
    Filed: April 8, 2004
    Date of Patent: August 15, 2006
    Assignee: Kahtoola, Inc.
    Inventor: Daniel G. Giovale
  • Patent number: 7047673
    Abstract: A step-in binding system (20, 220) including a binding (24, 224) and an engagement member (26, 226) for securing a snowshoe to footwear (22). In one embodiment, the binding includes a pivotable latch (78) and a fixed latch (80), each having a pair of catches (116) for engaging a corresponding receiver (110) on the engagement member. The pivotable latch is pivotable between a closed position (CP) and an open position (OP) and is biased into the closed position by a helical rotational spring (100). The binding further includes an adjustment mechanism (32) extending between a toe member (28) and a heel member (30) that allows the distance between the toe and heel members to be selectively changed by a user. In another embodiment, the binding includes a pair of pivotable latches (278, 280), each biased into its closed position by two torsional rotational springs (300).
    Type: Grant
    Filed: January 23, 2004
    Date of Patent: May 23, 2006
    Assignee: KZ Snowshoes, Inc.
    Inventor: David J. Dodge
  • Patent number: 7003901
    Abstract: An ice crampon for mountain climbing comprising a reinforcement 12B with a metal reinforcement, fitted with anchoring teeth 14, and a fastening device 30 comprising a lateral operating lever 32 forming a toggle joint for locking or unlocking the heel of the shoe along the pivoting direction of the operating lever 32.
    Type: Grant
    Filed: August 5, 2002
    Date of Patent: February 28, 2006
    Assignee: Zedel
    Inventors: Paul Petzl, Alain Maurice
  • Patent number: 6966127
    Abstract: An ice spike comprises a fixing clamp attached to the fixed rear part of the armature and having a cross-bar designed to latch directly onto a rear rim of the sole. The front part of the armature comprises stop means to wedge the front of the shoe in the longitudinal direction. A strapping system is provided with at least one safety lanyard arranged to press the shoe against the bearing surface. After lengthwise adjustment of the strip has been performed according to the shoe size, fitting the shoe does not require any variation of distance between the rear fixing clamp and the front stop means.
    Type: Grant
    Filed: February 27, 2004
    Date of Patent: November 22, 2005
    Assignee: Zedel
    Inventors: Paul Petzl, Laurent Perrod
  • Patent number: 6964118
    Abstract: A fastening system for fastening a crampon to a mountain boot having a sole; the fastening system having at least one fastening seat formed in the sole of the mountain boot, and at least one fastening member carried by the crampon and which engages the fastening seat to fix the crampon to the mountain boot.
    Type: Grant
    Filed: April 30, 2002
    Date of Patent: November 15, 2005
    Assignees: Calzaturificio S.C.A.R.P.A. S.p.A, Grivel S.r.l.
    Inventors: Davide Parisotto, Gioachino Gobbi
  • Patent number: 6836977
    Abstract: An overshoe that is removably disposable on a user's shoe and provides a tread surface that enhances the user's footing on slippery surfaces. The tread surface has removable spikes that penetrate surfaces and forward-oriented and rearwards-oriented gripping ridges that grip the surface. The ease of pulling on and removing the overshoe is enhanced by using stretch zones that are placed to allow stretching of the overshoe to fit over a shoe or the like without compromising the snugness of the overshoe fit. A spike assembly for use with an overshoe that fits over a person's shoe and enhances a person's contact with the ground, includes a spike having a head operably coupled to a shank; and a button overmolded on the spike and having a neck for removable engagement in a bore defined in the overshoe. A method of minimizing slippage on a ground surface is further included.
    Type: Grant
    Filed: December 9, 2002
    Date of Patent: January 4, 2005
    Inventors: Jon C. Larson, Van Larson
  • Patent number: 6833171
    Abstract: A shoe or foot covering with slip-resistant properties is disclosed. The shoe cover includes a slip-resistant material that is applied to the bottom portion of the shoe cover. The slip-resistant material may be a substantially amorphous atactic olefin polymer.
    Type: Grant
    Filed: April 3, 2002
    Date of Patent: December 21, 2004
    Assignee: Kimberly-Clark Worldwide, Inc.
    Inventors: Stephen M. Campbell, Linda G. Harris
  • Patent number: RE42965
    Abstract: An overshoe that is removably disposable on a user's shoe and provides a tread surface that enhances the user's footing on slippery surfaces. The tread surface has removable spikes that penetrate surfaces and forward-oriented and rearwards-oriented gripping ridges that grip the surface. The ease of pulling on and removing the overshoe is enhanced by using stretch zones that are placed to allow stretching of the overshoe to fit over a shoe or the like without compromising the snugness of the overshoe fit. A spike assembly for use with an overshoe that fits over a person's shoe and enhances a person's contact with the ground, includes a spike having a head operably coupled to a shank; and a button overmolded on the spike and having a neck for removable engagement in a bore defined in the overshoe. A method of minimizing slippage on a ground surface is further included.
    Type: Grant
    Filed: December 5, 2006
    Date of Patent: November 29, 2011
    Assignee: Sure Foot Corporation
    Inventors: Jon C. Larson, Van B. Larson
  • Patent number: RE44193
    Abstract: An overshoe that is removably disposable on a user's shoe and provides a tread surface that enhances the user's footing on slippery surfaces. The tread surface has removable spikes that penetrate surfaces and forward-oriented and rearwards-oriented gripping ridges that grip the surface. The ease of pulling on and removing the overshoe is enhanced by using stretch zones that are placed to allow stretching of the overshoe to fit over a shoe or the like without compromising the snugness of the overshoe fit. A spike assembly for use with an overshoe that fits over a person's shoe and enhances a person's contact with the ground, includes a spike having a head operably coupled to a shank; and a button overmolded on the spike and having a neck for removable engagement in a bore defined in the overshoe. A method of minimizing slippage on a ground surface is further included.
    Type: Grant
    Filed: February 25, 2010
    Date of Patent: May 7, 2013
    Assignee: Sure Foot Corporation
    Inventors: Jon C. Larson, Van B. Larson
  • Patent number: RE46681
    Abstract: Disclosed are chain-type crampons for preventing mountain-climbing boots from being slipped on a snowy road or icy road when climbing a mountain. The crampons having an elastic band and chains mounted on the band are provided with a plurality of spikes and link rings, so that a brake power on the snowy road or icy road is increased and snow is not adhered to the crampons.
    Type: Grant
    Filed: July 19, 2016
    Date of Patent: January 23, 2018
    Assignee: SNOWLINE CO., LTD.
    Inventor: Jinhong Choi