11
Jean Pierre Vermeulen: Shock absorbing system for footwear application. Riches McKenzie & Herbert, March 19, 1991: US04999931 (202 worldwide citation)

This invention relates to a new shock absorber which may be used as an insole or as a midsole for an article of footwear. The shock absorber comprises a multi-cell membrane which may be embedded in a flexible envelope or which may be used itself as a one-piece multi-cell membrane insole or midsole. ...


12
Paul H Johnson, Robert B Stevenson: Footwear having improved shock absorption. Head Johnson & Stevenson, May 8, 1984: US04446634 (196 worldwide citation)

Footwear having improved shock absorption in a shoe having a heel and box portion, a first flat elastomeric bladder supported by the shoe heel portion to bear the weight of the heel of the foot of a user, an elastomeric bladder portion supported by the shoe box portion to bear the weight of the ball ...


13
Paul E Litchfield, Matthew J Montross, Steven F Smith, J Spencer White, Alexander W Jessiman: Support and cushioning system for an article of footwear. Reebok International, Sterne Kessler Goldstein & Fox P L L C, June 30, 1998: US05771606 (194 worldwide citation)

A support and cushioning system for an article of footwear. The system includes a resilient insert disposed between a midsole and an outsole of a shoe. The resilient insert includes several chambers disposed in a heel portion of the resilient insert. These chambers are fluidly interconnected to each ...


14
Paul H Mitchell, James C Sell Jr, Henry W Bonk: Cushioning device with improved flexible barrier membrane. Nike, Tetra Plastics, Harness Dickey & Pierce, February 3, 1998: US05713141 (194 worldwide citation)

Products in the form of cushioning devices made from flexible membranes employing at least one layer including thermoplastic urethane and at least one layer of a copolymer of ethylene and vinyl alcohol are inflatable to a relatively high pressure. The cushioning devices maintain the internal inflata ...


15
Daniel R Potter, Allan M Schrock: Dynamically-controlled cushioning system for an article of footwear. Nike, Banner & Witcoff, August 13, 2002: US06430843 (193 worldwide citation)

An article of footwear with a dynamically-controlled cushoning system is disclosed. The cushioning system includes a sealed, fluid-filled bladder formed with a plurality of separate cushioning chambers, and a control system. The control system, which includes a CPU, pressure sensors and valves, cont ...


16
Byron A Donzis: Self-contained fluid pressure foot support device. Arnold White & Durkee, August 19, 1980: US04217705 (193 worldwide citation)

A device which supports and cushions the human foot by means of fluid pressure is disclosed. The device is non-elastic and self-supporting. Two superimposed plies of a fluid impervious woven fabric material are sealed to each other around the periphery and, according to predetermined design, at sele ...


17
Masafumi Ito: Sole. Asics Corporation, Armstrong Nikaido Marmelstein & Kubovcik, September 6, 1988: US04768295 (181 worldwide citation)

A sole for sports shoes is proposed which has improved shock absorbing capability when landing, and provides a repulsion force when kicking. Cushioning members are mounted in the recesses formed in the sole plate. Each cushioning member has a pair of sheets adhered together at spacings to form a plu ...


18
George S Cole, Karl M Schmidt: Thrust producing shoe sole and heel. Vogel Dithmar Stotland Stratman & Levy, November 16, 1982: US04358902 (175 worldwide citation)

A thrust producing shoe sole and heel having fluid-proof cavities located in the heel portion and in the sole portion which underlies the metatarsal ball area of a foot for which the sole and heel is sized, the cavities being connected by restricted passageways. The material underlying the cavities ...


19
Marion F Rudy: Pressurizable envelope and method. Robert C Bogert, Beehler & Pavitt, August 6, 1996: US05543194 (174 worldwide citation)

An internally pressurizable lightweight high tensile strength multi-layered structure with an outer barrier layer envelope of elastomeric semi-permeable material for use as a cushioning device is provided. The barrier layer is bonded, at a multiplicity of sites, to substantially the entire distal su ...


20
Marion F Rudy: Shoes with studded soles. Robert C Bogert, Subkow and Kriegel, June 9, 1981: US04271606 (171 worldwide citation)

Shoes incorporating a multiple chambered sole member inflated to a pressure above atmospheric, and disposed above and adjacent to an outsole having a deflectable web and projecting elements, such as ground-engaging studs, depending from the web and disposed in spaced geometric relation to each other ...