David J H Chang: Shoe sole having compressible shock absorbers. Far East Athletics, Cushman Darby & Cushman, April 24, 1990: US04918838 (138 worldwide citation)

This is a sole with compressible shock absorbers which not only provides an improved shock absorbing function but also provides more comfort for the wearer. The shock absorbers consist of a polygonal replaceable air bellows placed in a polygonal recess on the forefoot section of the shoe and a cylin ...

Robert M Lyden, Michael A Aveni: Shoe sole including a peripherally-disposed cushioning bladder. Nike, Banner & Allegretti, January 21, 1997: US05595004 (135 worldwide citation)

An athletic shoe including an upper and a sole. The sole includes a cushioning bladder including a sealed, fluid-filled tube disposed about the perimeter of the shoe. In one embodiment, the bladder includes lateral and medial portions extending about the heel and forwardly towards the forefoot to de ...

George S Cole: Sole-and-heel structure having premolded bulges. Energaire Corporation, Emrich & Dithmar, March 25, 1986: US04577417 (132 worldwide citation)

In one embodiment, the sole-and-heel structure includes an outer member having a sole portion and a heel portion. A bulge is molded into the heel portion and a bulge is molded into the sole portion in the metatarsal region thereof. A thin sealing member is attached to the outer member with adhesive ...

David A Goodwin, Richard M Hogan, Steven D Buchanan Sr, Gary Allen Kokstis: Resilient bladder for use in footwear and method of making the bladder. Nike, Banner & Witcoff, November 30, 1999: US05993585 (131 worldwide citation)

The present invention includes a method for forming a resilient bladder structure for use in the sole of footwear. The method comprises the steps of forming a shell from a flexible material to have a floor and a perimeter sidewall extending from the floor; placing a core, having spaced apart outer s ...

Robert M Lyden, Gordon A Valiant, Robert J Lucas, Michael T Donaghu, David M Forland, Joel I Passke, Thomas McGuirk, Lester Q Lee: Athletic shoe with rearfoot strike zone. Nike, Banner Birch Mckie & Beckett, June 20, 1995: US05425184 (131 worldwide citation)

An athletic shoe has a sole with a rearfoot strike zone segmented from the remaining heel area by a line of flexion which permits articulation of the strike zone during initial heel strike of a runner. The line of flexion is located to delimit a rearfoot strike zone reflecting the heel to toe runnin ...

Michael Polus, Hans Besendorfer: Sport shoe with pneumatic inflating device. Holman & Stern, August 16, 1988: US04763426 (131 worldwide citation)

There is a sports shoe with a sole (4) and an inflating device which is arranged under a convex part of the foot (3) and delimits a compression chamber (16) with a chamber body (1) as well as a chamber roof (14), the compression chamber having an inlet opening (17) and an outlet opening (18). It is ...

Armenak Moumdjian: Athletic shoe with inflatable mobile inner sole. Herbert Dubno, April 6, 1993: US05199191 (129 worldwide citation)

An athletic shoe has an air pressurizable inner sole received in a compartment between the sole and the upper so as to be free to move therein except for the location at which the valve formation of the inner sole passes through the wall of this compartment.

David A Goodwin, Richard M Hogan, Steven D Buchanan Sr, Edward Nathaniel Thomas, Gary Allen Kokstis: Resilient bladder for use in footwear. Nike, Banner & Witocoff, September 19, 2000: US06119371 (126 worldwide citation)

A bladder for use as a cushioning element and footwear incorporating the bladder. The enclosed core is formed of spaced apart first and second fabric layers connected together by a plurality of connecting yarns. The shell is formed of see-through plastic material whereby the connecting yarns are vis ...

Lars G B Peterson: Shoe sole construction. Harness Dickey & Pierce, July 10, 1984: US04458430 (124 worldwide citation)

A shoe sole construction designed so as to be biodynamically shock-absorbing.

David Goodwin: Protective cage for footwear bladder. Nike, Banner & Witcoff, December 23, 2003: US06665958 (123 worldwide citation)

A protective cage for footwear bladders is disclosed. The protective cage includes a cage base and a plurality of support members that extend outwardly from the cage base. The support members extend across the side wall of the bladder to protect the device from abrasion and to prevent fatigue. The u ...