Metallic Spring Patents (Class 36/38)
  • Patent number: 10383390
    Abstract: A sole cushioning module includes a contacting plate, a base plate, a connecting portion and a first spring leaf. The contacting plate abuts against a sole. The base plate and the contacting plate form a space. The connecting portion connects with the contacting plate and the base plate. The first spring leaf is located within the space. The first spring leaf connects with the base plate. The first spring leaf is curved and forms a first outer curved surface. A first region of the first outer curved surface abuts against the contacting plate. When the contacting plate moves towards the base plate, the contacting plate presses on the first outer curved surface. The first spring leaf deforms, and the first outer curved surface slides relative to the contacting plate. The first region shifts towards an end of the first spring leaf connecting with the base plate.
    Type: Grant
    Filed: July 20, 2016
    Date of Patent: August 20, 2019
    Assignee: NATIONAL TAIWAN UNIVERSITY OF SCIENCE AND TECHNOLOGY
    Inventors: Mau-Pin Hsu, Wei-Cheng Huang
  • Patent number: 10299537
    Abstract: Embodiments provide a support structure for an article of footwear, which may include upper and lower support elements, upper and lower members, a compression element disposed between the upper and lower members, and a torsion element. A vertical force applied to the upper support element compresses the compression element, rotationally displaces in a first direction the upper member relative to the lower member, rotationally displaces in the first direction a second portion of the torsion element relative to a first portion of the torsion element, deflects a torsion loading portion of the torsion element, and moves the upper member vertically toward the lower member. Upon release of the force, the torsion loading portion rotationally displaces in a second direction opposite to the first direction the second portion of the torsion element relative to the first portion. Embodiments of methods of manufacturing a support structure are also disclosed.
    Type: Grant
    Filed: October 26, 2017
    Date of Patent: May 28, 2019
    Assignee: NIKE, Inc.
    Inventors: Elizabeth Barnes, Zachary M. Elder, Fred G. Fagergren
  • Patent number: 9578924
    Abstract: A high-heeled shoe having a sole and a heel of at least 4 cm height provided thereto, wherein the heel is provided with a damping element. The damping element has different effective damping cross sections along the heel's longitudinal axis and/or is freely deformable in at least one direction perpendicular to the heel's longitudinal axis.
    Type: Grant
    Filed: April 18, 2012
    Date of Patent: February 28, 2017
    Inventor: Gabriela Rupprecht
  • Patent number: 9480298
    Abstract: An article of footwear includes an upper, a midsole, and a support assembly positioned beneath the midsole. The support assembly includes a plurality of primary support members having a substantially Z-shaped cross-section extending transversely across the support assembly. The support assembly may include a plurality of secondary support members having an inverted V-shaped cross-section, extending longitudinally along the support assembly, and intersecting with the primary support members. An outsole is positioned beneath the support assembly.
    Type: Grant
    Filed: August 1, 2013
    Date of Patent: November 1, 2016
    Assignee: NIKE, Inc.
    Inventors: Elizabeth Barnes, Margarita Cortez, Zachary Elder, Fred Fagergren, Lee Peyton
  • Patent number: 9241533
    Abstract: A shoe includes spring type support members, optionally for at least a heel area of a foot. The support member includes a primary biasing element in the form of a V-shaped spring assembly and a secondary biasing element provided at least partially within a volume defined by the primary biasing element (e.g., between its base member and its flexing member, beneath the flexing member, etc.). When the primary biasing element compresses beyond a predetermined extent, it will compress the secondary biasing element. This construction allows the degree of ground reaction force attenuation and energy absorption properties of a shoe to be dually controlled to meet the specific demands of the activity for which the footwear is intended to be used.
    Type: Grant
    Filed: February 21, 2013
    Date of Patent: January 26, 2016
    Assignee: NIKE, Inc.
    Inventors: Joshua P. Heard, Robert M. Bruce
  • Patent number: 9204686
    Abstract: The present disclosure describes a performance enhancing shoe sole that includes an anterior support structure and a posterior support structure that are connected by a first support structure. The anterior support structure and posterior support structure are flexible bent spring structures. The first support structure provides a plantar interface that includes a midfoot arch. The shoe sole is positionable in a shoe to provide shock absorption and controlled energy return from the posterior support structure to the first support structure. The shoe sole is an interconnected bent spring system that can be a single ribbon of flexible material defining multiple pivot angles or a multi-layered cantilevered flexible bent spring. The shoe sole can also include inserts that dampen shock.
    Type: Grant
    Filed: December 10, 2014
    Date of Patent: December 8, 2015
    Inventors: Howard Baum, Alan Malmut
  • Patent number: 9179733
    Abstract: An article of footwear is provided having an elevated plate structure incorporated in the sole structure and optionally including a fluid-filled chamber. The elevated plate structure can include an upper plate and a plurality of legs extending downward toward the outsole. End portions of the legs can engage an upper region of the outsole. The elevated plate structure can form a cage region that can optionally include a fluid-filled chamber substantially disposed therein. The elevated plate structure can further include a lower plate disposed at an upper region of the outsole, which can form a lower portion of the cage region. Portions of the legs can be integrated with impact-attenuating members in the heel region in various configurations and can provide features for the impact-attenuating members, such as support, impact-attenuation and adjustable impact-attenuation features.
    Type: Grant
    Filed: December 23, 2011
    Date of Patent: November 10, 2015
    Assignee: NIKE, Inc.
    Inventors: Lee D. Peyton, DeVonne DeVoe
  • Patent number: 9066559
    Abstract: A tri-layer energy return system is provided. The tri-layer energy return system includes a base; an orthotic; a platen directly or indirectly operably coupled to the base, the orthotic or both. A lever including a slide portion is movably received by said base. A tensioning member is coupled to said orthotic at an attachment point thereof.
    Type: Grant
    Filed: March 14, 2013
    Date of Patent: June 30, 2015
    Inventor: Barry A. Butler
  • Patent number: 8984772
    Abstract: A footwear for protecting the foot against an impact with an external body, comprising a protective component (20) adapted to deforming under pressure from the foot and/or the external body in case of impact. The protection component is made in a way to react under said pressure with a permanent and irreversible structural alteration, thus absorbing and simultaneously dispersing the received energy during the impact.
    Type: Grant
    Filed: August 29, 2007
    Date of Patent: March 24, 2015
    Assignee: Alpinestars Research SRL
    Inventor: Giovanni Mazzarolo
  • Patent number: 8959797
    Abstract: The present invention teaches a method of making a custom article of footwear. Further, the article of footwear can include a spring element that can provide improved cushioning, stability, and running economy. In addition, the components of the article of footwear can be selected from a wide range of options, and can be easily removed and replaced, as desired.
    Type: Grant
    Filed: May 6, 2012
    Date of Patent: February 24, 2015
    Inventor: Robert M. Lyden
  • Patent number: 8615900
    Abstract: The invention relates to footwear comprising a sole and an upper, which sole is attached to spring means supported on a ground surface, which spring means comprise at least one U-shaped spring element, which is connected to the sole with a first leg and which is supported on the ground surface with the other leg. A drawback of such footwear is that the spring means are constructed with a certain overmeasure in relation to the footwear so as to generate a certain useful spring effect. Adjusting the spring means of said known footwear is complex and cannot be done efficiently. The object of the invention is to provide improved footwear as referred to in the introduction, as well as improved spring means according to the invention, with on the one hand small constructional dimensions while retaining an advantageous spring effect, which is furthermore easier to adjust.
    Type: Grant
    Filed: January 14, 2009
    Date of Patent: December 31, 2013
    Inventor: Johannes Wilhelmus Maria Diekman
  • Patent number: 8607475
    Abstract: A footwear sole includes shock absorbing elements that extend from upper and lower plates. In one embodiment, the shock absorbing elements include a bridge defining a plurality of receptacles extending from the lower plate and a plurality of protrusions extending from the upper plate. Each protrusion is associated with one receptacle, and a portion of each protrusion extends into the receptacle.
    Type: Grant
    Filed: June 21, 2010
    Date of Patent: December 17, 2013
    Assignee: Wolverine World Wide, Inc.
    Inventor: Kiyotaka Nakano
  • Patent number: 8397402
    Abstract: The present invention relates to a shoe, in particular a sports shoe, with a cushioning system comprising a lower sole element and an upper sole element. The cushioning system further comprises at least one lever having at least two arms where an angle ? between the arms lies within the range 0°<?<180°. The first arm is connected to a deformation element and the second arm is connected to one of the two sole elements, wherein the lever is pivotably arranged at the other sole element.
    Type: Grant
    Filed: December 18, 2007
    Date of Patent: March 19, 2013
    Assignee: adidas International Marketing B.V.
    Inventors: Timothy David Lucas, Gerd Rainer Manz, Matthew Daniel Chandler, Paul Leonard Michael Smith, Josh Robert Gordon, Manfred Rippel, Robert Leimer, Jan Hill
  • Patent number: 8353968
    Abstract: A spring orthotic device comprising a cradle for contacting the foot of a user, a spring plate underneath the cradle, a ventral pivot beneath the spring plate, and a dorsal pivot above the spring plate and below the cradle located proximally of the ventral pivot.
    Type: Grant
    Filed: February 8, 2010
    Date of Patent: January 15, 2013
    Assignee: King Family Kingetics, LLC
    Inventors: Steven August King, Paul Hewitt
  • Publication number: 20120279084
    Abstract: An improved construction for a device intended to raise the heel or heels of a user up off an associated shoe to diminish or eliminate pain and discomfort. The device is adjustable to accommodate a variety of applications and is transferable between those applications.
    Type: Application
    Filed: May 4, 2012
    Publication date: November 8, 2012
    Inventor: E. James Bodmer
  • Patent number: 8136265
    Abstract: Disclosed herein is a footwear sole. The footwear sole includes a coupling seat, a connector and a locking pin. The coupling seat protrudes from the lower surface of a rear midsole, and includes a through hole in a central portion thereof, a locking recess formed around the through hole, and at least four pin slits formed at regular intervals. The connector is coupled to the top of the coil spring, and includes a locking protrusion corresponding to the locking recess, an internal threaded part, and a spring seat provided along an edge of an upper surface of the connector. The locking pin is provided at an end of the top of the spring, and protrudes to be fitted into an associated pin slit.
    Type: Grant
    Filed: May 18, 2009
    Date of Patent: March 20, 2012
    Assignee: Z-Coil Ltd.
    Inventor: Eun Jae Lee
  • Patent number: 8104194
    Abstract: The present invention relates to a shoe, and more particularly to a shoe including a mid-sole groove formed at a mid-sole, a texon hole formed at a texon, and an impact absorption member inserted between the mid-sole and the texon hole so that the shoe can absorb impact exerted on user's knees and ankles while the user walks or exercises, thereby protecting them.
    Type: Grant
    Filed: November 8, 2007
    Date of Patent: January 31, 2012
    Inventor: Suk Koung Kim
  • Publication number: 20110107618
    Abstract: The present invention relates to a shoe with elastic means, and provides a shoe with elastic means, which can be manufactured with ease and has superior elastic performance. To accomplish the object of the present invention, a shoe is provided comprising: an elastic cap made of a material having an elasticity higher than that of the peripheral area around the elastic cap; a conical groove formed in the elastic cap; and a spring which is formed separately from the elastic cap, and which has a conical shape which is the same shape as the conical groove so that the spring can be inserted into said conical groove. Accordingly, the present invention can manufacture a shoe embedded with both a spring and an elastic block in a further easier manner, and can manufacture a superior quality shoe with no defects.
    Type: Application
    Filed: September 16, 2009
    Publication date: May 12, 2011
    Inventor: Jong Ha Kim
  • Patent number: 7793431
    Abstract: Footwear including a foot support member and a sole assembly, the sole assembly having a first end and a second end, comprising a plurality of separate insole segments attached to the foot support member for bending the sole assembly, an outsole portion forming the base of the sole assembly, and a plurality of springs engaged between the insole segments and the outsole portion. The springs are arranged in a continuous series across the sole assembly from the first end to the second end, such that the springs exert a constant rebounding force on and across the sole of a user in series throughout a pace cycle.
    Type: Grant
    Filed: February 7, 2007
    Date of Patent: September 14, 2010
    Assignee: Yue's Hong Kong Invention Limited
    Inventor: Chun Ho Yu
  • Patent number: 7757411
    Abstract: A footwear sole includes a plurality of shock absorbing elements that extend from upper and lower plates. In one embodiment, the shock absorbing elements include a plurality of receptacles extending from the lower plate and a plurality of protrusions extending from the upper plate. Each protrusion is associated with one receptacle, and a portion of each protrusion extends into the receptacle. A resilient sleeve surrounds each associated protrusion and receptacle. In another embodiment, a plurality of shock absorbing elements extend from a bridge on one of the upper and lower plates.
    Type: Grant
    Filed: April 25, 2007
    Date of Patent: July 20, 2010
    Assignee: Wolverine World Wide, Inc.
    Inventor: Kiyotaka Nakano
  • Patent number: 7748143
    Abstract: An article of footwear having an upper and an outer bottom assembly, the outer bottom assembly having an outsole and, in the heel zone, an elastically deformable element that extends downward from the lower end of the upper to the medial, lateral edges, respectively, of the outsole.
    Type: Grant
    Filed: November 30, 2006
    Date of Patent: July 6, 2010
    Assignee: Salomon S.A.S.
    Inventors: Guillaume Mathieu, Jean-Michel Challe
  • Patent number: 7735240
    Abstract: Disclosed herein is a shoe sole having functions of correcting a gait, of absorbing shocks, and of mitigating partial side wear of the sole. The shoe sole according to the present invention includes a main sole, which has a front foot part provided with a soft front midsole and a front outsole, and has a rear foot part provided with a hard rear midsole. The shoe sole further includes a subsidiary sole. The subsidiary sole includes an elastic member, a rear outsole, which is coupled to the lower end of the elastic member, and a connection member, which is provided on the upper end of the elastic member. The connection member has an internal threaded part, which couples the connection member to the rear midsole, and stop protrusions, which are provided around the internal threaded part. The shoe sole further includes a coupling support, which is provided under the rear midsole. Stop holes corresponding to respective stop protrusions are formed in the coupling support.
    Type: Grant
    Filed: January 27, 2007
    Date of Patent: June 15, 2010
    Assignee: Z-Coil Ltd.
    Inventor: Eun Jae Lee
  • Publication number: 20090107006
    Abstract: A shoe with springs is disclosed. The shoe includes a sole, two or more fixing plates fixed to the sole, a supporting plate in contact with ground, two or more coil springs mounted between the sole and the supporting plate, and a cover formed in a bellows shape to be folded and unfolded according to contraction and expansion of the coil springs. The cover includes coupling protrusions at an upper end and a lower end. The sole and the supporting plate are formed with coupling grooves along side surfaces, in which the coupling protrusions of the cover are fitted. The coil springs are configured such that a diameter is gradually increased from an upper end portion to a lower end portion. Therefore, the coil springs are shielded by the cover and a coupling structure of the coil springs is improved to prohibit bending of the coil springs in a lateral direction, thereby increasing safety and protecting a user or a bystander from physical damage or injury.
    Type: Application
    Filed: October 29, 2007
    Publication date: April 30, 2009
    Inventors: Kyung Dae Ahn, Ho Jin Jung
  • Patent number: 7159339
    Abstract: An article of footwear having an upper and an outer bottom assembly, the outer bottom assembly having an outsole and, in the heel zone, an elastically deformable element that is substantially arch-shaped in the transverse direction and extends downward from the lower end of the upper to the medial, lateral edges, respectively, of the outsole.
    Type: Grant
    Filed: February 9, 2004
    Date of Patent: January 9, 2007
    Assignee: Salomon S.A.
    Inventors: Guillaume Mathieu, Jean-Michel Challe
  • Patent number: 7140125
    Abstract: High-heeled footwear has a heel with a resilient compressible element allowing the heel of the foot to be lowered at heel strike to approximate a normal walking pattern in low-heeled shoes. Preferably, the footwear also includes a midfoot support structure, which may be a sprung footbed, or a sling and reinforcement girder, and which serves to redistribute load from the wearer's forefoot to her midfoot.
    Type: Grant
    Filed: October 20, 2004
    Date of Patent: November 28, 2006
    Inventors: Angela Singleton, Mark Marion, Tiffany Card
  • Patent number: 7107235
    Abstract: The present invention teaches a method of conducting retail and Internet business including making and delivering a custom article of footwear. The article of footwear taught in the present invention includes a spring element that can provide improved cushioning, stability, and running economy. Unlike the conventional foam materials presently being used by the footwear industry, a preferred spring element is not substantially subject to compression set degradation and can provide a relatively long service life. The components of the article of footwear including the upper, insole, heel counter, spring element, and sole can be selected from a range of options, and can be easily removed and replaced, as desired. Accordingly, the present invention also teaches a method of making a custom article of footwear.
    Type: Grant
    Filed: October 24, 2002
    Date of Patent: September 12, 2006
    Inventor: Robert M. Lyden
  • Patent number: 7016867
    Abstract: The article of footwear taught in the present invention includes a spring element that can provide improved cushioning, stability, and running economy. Unlike the conventional foam materials presently being used by the footwear industry, a preferred spring element is not substantially subject to compression set degradation and can provide a relatively long service life. The components of the article of footwear including the upper, insole, spring element, and sole can be selected from a range of options, and can be easily removed and replaced, as desired. Moreover, the present invention teaches a method of making a customized article of footwear, and also a way of doing retail and Internet business.
    Type: Grant
    Filed: May 21, 2002
    Date of Patent: March 21, 2006
    Inventor: Robert M. Lyden
  • Patent number: 6928756
    Abstract: A shoe includes a shoe top structure secured to a sole having a sole forward segment for making contact with a shoe support surface such as the floor of a basketball court, and a sole rearward segment which arches upwardly and then extends rearwardly from the sole forward segment to be spaced above the shoe support surface, and including a heel in the form of a heel panel mounted beneath the sole rearward segment, and including spring means biasing the heel panel downwardly a certain distance from the sole rearward segment to define a vertical gap between the sole rearward segment and the heel panel. As a result of this construction, a downward thrust of a wearer heel inside the shoe presses the heel panel firmly against the shoe support surface drives the heel panel upwardly toward the sole rearward segment against the biasing of the spring means, thereby storing energy in the spring means.
    Type: Grant
    Filed: March 3, 2003
    Date of Patent: August 16, 2005
    Inventor: Richard Haynes
  • Patent number: 6754983
    Abstract: An article of footwear has an upper in a tented arrangement. The article of footwear includes a sole and an upper including a shroud. The article of footwear further includes a foot engaging system for joining a foot of a user to the sole, and a biasing system which includes one or more frame members that urges or influences the shroud away from the foot of the user. The one or more frame members may be coupled to the foot holding system on a medial and a lateral side. The article of footwear further includes a plurality of straps for holding the foot to the sole in which one of the straps engages the heel. The straps are located on an exterior surface of the shroud or alternatively they are located in the interior of the shroud. Air gaps are created between the shroud and the foot for ventilation. Several foot booties for holding a foot have aeration regions for providing air to ventilate the foot of a wearer.
    Type: Grant
    Filed: January 22, 2002
    Date of Patent: June 29, 2004
    Assignee: Nike, Inc.
    Inventors: Tinker L. Hatfield, Michael A. Aveni, Micheal R. Friton, Robert W. Dolan, S. H. Park
  • Patent number: 6751891
    Abstract: A shock absorption and energy return assembly for increasing the stability, shock absorption and energy return capabilities of a shoe. The assembly generally includes lower and upper guide members having a plurality of spring retainers, a plurality of springs positioned within the spring retainers, and a resilient connecting member which fixedly attaches the lower guide member to the upper guide member and serves to limit the separation between the guide members, preventing disengagement of the springs from within the guide members while simultaneously providing a means of allowing the springs to compress below their uncompressed height when a force is applied on the assembly. Alternatively, the assembly could be surrounded by a sealed, transparent encasement, which in one embodiment would comprise a lower portion and an upper portion surrounding the lower guide member and the upper guide member, and a plurality of lower extrusions and upper extrusions.
    Type: Grant
    Filed: September 7, 2001
    Date of Patent: June 22, 2004
    Inventor: Thomas D Lombardino
  • Patent number: 6718655
    Abstract: According to the present invention, a cushion-action applying implement comprising a gutter-like receiver, a plate spring in which a flexing portion is inserted into the gutter-like portion, the flexing portion is provided in its both sides with embedded portions in series, and an angle formed by the embedded portions is V or nearly horizontal, a switching shaft provided with a cam for pushing the flexing portion of the plate spring to change the angle formed by the embedded portions and in which an engaging portion for rotation is provided on the end thereof, a bearing of the switching shaft fixedly mounted on both ends of the gutter-like receiver, and a drive means for rotating the switching shaft is embedded in the flexing portion of the footwear bottom body, whereby the switching shaft is rotated to simply switch to the state of presence or the state of absence of cushioning.
    Type: Grant
    Filed: May 3, 2002
    Date of Patent: April 13, 2004
    Inventor: Fumio Sugawara
  • Publication number: 20040010940
    Abstract: A heel cushioning device with a cavity with a plurality of voids located within the cavity, the cavity conformed to accommodate a cushion formed with a terrace at the top of the cushion followed beneath by a plurality of generally concentric terraces or partial terraces increasing in area until reaching a lower portion of the cushion resting on a plurality of springs located in the voids.
    Type: Application
    Filed: June 30, 2003
    Publication date: January 22, 2004
    Inventor: Lester Erwin Carroll
  • Publication number: 20030217483
    Abstract: A complete energy absorbing system for a variety of items, including athletic shoes. To accomplish the foregoing, the invention utilizes a series of encapsulated springs that are always in a state of suspension. Such is a result of the unique stiffening of the conical spring during compression thereof. In the preferred mode, the encapsulated springs are conical in nature, and alternate between standard and upside-down orientation, providing the utmost in strength and support while preventing the springs from bottoming out upon impact. Importantly, as distinguished from the prior art, an encapsulating material placed around a plurality of conical springs prevents the springs from being continually placed in a stressed situation, thus maintaining their structural integrity. Such encapsulating material may be made of a polymeric or thermoplastic material, which conforms to the conical shape of the springs and their respective apertures, functioning to aid in the dissipation of impact forces.
    Type: Application
    Filed: May 24, 2002
    Publication date: November 27, 2003
    Inventor: Carl J. Abraham
  • Patent number: 6601042
    Abstract: The present application teaches a device and method for adjusting the width, girth, and foot shape of an article of footwear. Lasting boards having different configurations and alternate positions for selectively affixing various portions of an upper can be used to adjust and customize the fit of an article of footwear for an individual wearer. The lasting board can also comprise a spring element which can provide improved cushioning, stability, running economy, and a long service life. Unlike the conventional foam materials presently being used by the footwear industry, the spring element is not substantially subject to compression set degradation and can provide a relatively long service life. The components of the article of footwear including the upper, insole, lasting board and/or spring element, and sole including possible midsole and outsole portions can be selected from a range of options, and can be easily removed and replaced, as desired.
    Type: Grant
    Filed: May 17, 2000
    Date of Patent: July 29, 2003
    Inventor: Robert M. Lyden
  • Patent number: 6594918
    Abstract: An article of footwear has an upper in a tented arrangement. The article of footwear includes a sole and an upper including a shroud. The article of footwear further includes a foot engaging system for joining a foot of a user to the sole, and a biasing system which includes a plurality of frame members that urges or influences the shroud away from the foot of the user. The article of footwear further includes a plurality of straps for holding the foot to the sole in which one of the straps engages the heel. The straps are located on an exterior surface of the shroud or alternatively they are located in the interior of the shroud. Air gaps are created between the shroud and the foot for ventilation. Several foot booties for holding a foot have vent openings for providing air to ventilate the foot of a wearer. Further, the foot booties are combined with straps, in which the straps are disposed between the shroud and the foot booties.
    Type: Grant
    Filed: January 22, 2002
    Date of Patent: July 22, 2003
    Assignee: Nike, Inc.
    Inventors: Tinker L. Hatfield, Michael A. Aveni, Michael R. Friton
  • Publication number: 20030110661
    Abstract: A shock-absorbing shoe includes a vamp, an outsole, a heel cushion, and a plurality of spring coils. The outsole is connected to the vamp, and has toe and heel portions. The heel cushion is embedded in the heel portion, and has a bottom wall formed with a plurality of upstanding hollow tubes. The spring coils are respectively received in the tubes and protrude out of the tubes.
    Type: Application
    Filed: December 17, 2001
    Publication date: June 19, 2003
    Applicant: Winner Shoe Co., Ltd.
    Inventor: Pony Wu
  • Patent number: 6562427
    Abstract: An airbag for shoes has a plurality of elastically compressible cylindrical cushion members which are interconnected in a predetermined array by a connecting plate. The cushion members/connecting plate combination is encapsulated in a casing. The cushion members, connecting plate and casing are joined together to form an integral unit. The cushion members have a spiral groove formed in their outer surface which increases their compressibility during the initial phase of compression.
    Type: Grant
    Filed: October 11, 2001
    Date of Patent: May 13, 2003
    Assignee: Chinook Trading Company
    Inventor: Hun-Fa Hung
  • Publication number: 20020189134
    Abstract: An athletic shoe includes substantially horizontal chamber substantially within a heel portion of a midsole, the chamber having atmospheric communication at its lateral sides. The chamber includes an upper substantially rigid horizontal plate having at least four apertures therein and a lower substantially rigid horizontal support plate having a corresponding plurality of at least four apertures. Flexible resilient unitary sleeves integrally join respective vertical pairs of the apertures of the upper and lower plates respectively. Disposed within each of said resilient sleeves are resilient means each having spring constant and spring rate greater than that of said sleeves.
    Type: Application
    Filed: June 18, 2001
    Publication date: December 19, 2002
    Inventor: Roy Dixon
  • Patent number: 6449878
    Abstract: The article of footwear taught in the present invention includes a spring element which can provide improved cushioning, stability, running economy, and a long service life. Unlike the conventional foam materials presently being used by the footwear industry, the spring element is not substantially subject to compression set degradation and can provide a relatively long service life. The components of the article of footwear including the upper, insole, spring element, and outsole portions can be selected from a range of options, and can be easily removed and replaced, as desired. Further, the relative configuration and functional relationship as between the forefoot midfoot areas of the article of footwear can be readily modified and adjusted. Accordingly, the article of footwear can be customized by a wearer or specially configured for a select target population in order to optimize desired performance criteria.
    Type: Grant
    Filed: March 10, 2000
    Date of Patent: September 17, 2002
    Inventor: Robert M. Lyden
  • Patent number: 6405456
    Abstract: An innersole device for reducing shock to the feet of the user of shoes as would occur with one who is running in his shoes. A shoe sole and innersole is disclosed having several types of shock reduction methods including: (1) opposing magnets with compressed air/nitrogen bubbles inserted therebetween; (2) inner shock absorbers in the lower sole/heel of the shoe; (3) multiple, e.g., four shock absorbers, attached to the lower sole and the heel cup; (4) a flexible middle sole having a flexible cavity therein containing water or gel.
    Type: Grant
    Filed: April 10, 2001
    Date of Patent: June 18, 2002
    Inventor: Gregg R. Nichelson
  • Patent number: 6393731
    Abstract: An impact absorber for a shoe includes a multichamber housing having a plurality of springs located therein. Each spring can be adjusted as necessary to customize the impact absorbing characteristics of the shoe. A dividing wall is located in the multichamber housing to divide the housing into two chambers and springs can be located in each of the chambers. Cushion elements can be located in the chambers as well. A multichamber housing is located adjacent to the heel of the shoe and another multichamber housing can be located adjacent to the ball of the wearer's foot.
    Type: Grant
    Filed: June 4, 2001
    Date of Patent: May 28, 2002
    Inventors: Vonter Moua, Xia V. Moua
  • Publication number: 20010049888
    Abstract: A spring cushioned shoe is disclosed. The shoe includes a sole assembly that has a first spring disposed within a vacuity in the heel portion of the assembly, and a second spring disposed within a vacuity in the ball portion of the assembly. The springs are, e.g., wave springs that extend vertically from the upper to the lower internal boundaries of the vacuities.
    Type: Application
    Filed: July 10, 2001
    Publication date: December 13, 2001
    Inventors: David S. Krafsur, Francis E. LeVert
  • Patent number: 6282814
    Abstract: A spring cushioned shoe is disclosed. The shoe includes a sole assembly that has a first spring disposed within a vacuity in the heel portion of the assembly, and a second spring disposed within a vacuity in the ball portion of the assembly. The springs are, e.g., wave springs that extend vertically from the upper to the lower internal boundaries of the vacuities.
    Type: Grant
    Filed: October 15, 1999
    Date of Patent: September 4, 2001
    Assignee: Shoe Spring, Inc.
    Inventors: David S. Krafsur, Francis E. LeVert
  • Patent number: 6247249
    Abstract: The shoe system comprises a shoe that has a toe section and a heel portion. A shoe sole is disposed inside the shoe and has a groove defined therein. The groove extends angularly from an upper surface of the shoe sole rearwardly towards the heel portion of the shoe. A wedge section is removably attached to the shoe sole. A shoe insert has a stiff first member and a resilient second member attached to the first member. The second member is inserted into the groove. The second member has one side that may be thicker than the opposite side so that the second member is only twistable in one direction.
    Type: Grant
    Filed: June 7, 1999
    Date of Patent: June 19, 2001
    Assignee: Trackguard Inc.
    Inventor: Wilhelm Ove Lindqvist
  • Patent number: 6216365
    Abstract: A shock-absorbing insole for footwear, including a top member adapted to be in contact with the user's foot; a bottom member partly connected to the top member and adapted to rest on the inside sole of a piece of footwear, and defining a space with a heel portion of the top member, and a shock-absorbing unit including, in superposition, a top plate, at least one rubber pad and at least one effective member provided with a plurality of elastically deformable elements, the at least one rubber pad and the at least one effective member forming a cohesive packet which is introducible into the space via a window-like opening in a rim portion of the bottom member.
    Type: Grant
    Filed: November 4, 1999
    Date of Patent: April 17, 2001
    Assignee: Springco, Ltd.
    Inventor: Abraham Cohen
  • Patent number: 6115942
    Abstract: The shoe construction of the present invention includes an upper and a sole comprised of a lower portion which is mobile with respect to the upper portion, and at least one leaf spring which resiliently resists forces tending to bring closer together the lower and upper portions of the sole. The leaf spring or springs are arranged outside the space taken by the user's foot, and advantageously bend in a manner similar to buckling.
    Type: Grant
    Filed: November 13, 1998
    Date of Patent: September 12, 2000
    Assignee: Frederic Paradis
    Inventor: Frederic Alexandre Paradis
  • Patent number: 6055747
    Abstract: A shock absorption and energy return assembly for increasing the overall performance of a shoe by increasing the stability and shock absorption of the heel. The inventive device includes a lower guide member having a plurality of lower apertures and lower spring retainers, an upper guide member having a plurality of upper apertures and upper spring retainers, a plurality of compression springs positioned within the lower spring retainers and the upper spring retainers, a sealed encasement having a lower portion and an upper portion surrounding the lower guide member and the upper guide member, and a plurality of lower extrusions and upper extrusions. The lower guide member and the upper guide member are preferably U-shaped. The plurality of compression springs are aligned within the perimeter of the lower guide member and the upper guide member for providing maximum stability and response for the user.
    Type: Grant
    Filed: April 29, 1999
    Date of Patent: May 2, 2000
    Inventor: Thomas D. Lombardino
  • Patent number: 6029374
    Abstract: A midsole system for a running shoe or foot prosthesis have a sole spring, a heel spring and/or a forefoot spring stores energy of foot impact and releases it during the running cycle. A preferred embodiment provides bending beam sole systems for shoes or foot prostheses comprising a bending beam heel spring, a bending beam forefoot spring, a two coupled spring sole system, and a three coupled spring sole system. The sole systems of this invention maximize stability, cushioning, and walking or running economy.
    Type: Grant
    Filed: May 28, 1997
    Date of Patent: February 29, 2000
    Inventors: Hugh M. Herr, Rustem Igor Gamow
  • Patent number: 6006449
    Abstract: A shoe having a preassembled spring assembly incorporated into the sole thereof is provided. The spring assembly includes a pair of plates having a plurality of apertures formed therein. The pair of plates define an upper plate and a lower plate in which the apertures formed in the upper and lower plates are axially aligned when the upper plate is disposed directly above the lower plate. A plurality of spring members are disposed between the upper and lower plates. The spring members are axially aligned with the plurality of apertures. A mechanism for retaining the spring members between the upper and lower plates is also provided. The mechanism for retaining is designed for retaining the upper and lower plates at a predetermined distance.
    Type: Grant
    Filed: January 29, 1998
    Date of Patent: December 28, 1999
    Assignee: Precision Products Group, Inc.
    Inventors: Henry Orlowski, G. Paul Fletter, Alton L. Neal, II
  • Patent number: 5896679
    Abstract: An article of footwear for being worn on a wearer's foot as the wearer steps on a support surface. The article of footwear comprises a sole member having an upper surface for supporting the sole of the wearer's foot, a lower surface, a heel end, and a toe end; and a heel mechanism attached to the heel end of the sole member; the heel mechanism including a first plate for attachment to the lower surface of the sole member adjacent the heel end thereof, the first plate having a first end and a second end; the heel mechanism including a second plate having a first end attached to the first end of the first plate and a second end normally urged away from the second end of the first plate; the heel mechanism including lever structure associated with the second plate for urging the second end of the second plate toward the second end of the first plate when the wearer of the article of footwear takes a step.
    Type: Grant
    Filed: June 15, 1998
    Date of Patent: April 27, 1999
    Inventor: Phillip Baldwin