Multi-celled cushion and method of its manufacture

Details Multi-celled cushion and method of its manufacture Multi-celled cushion and method of its manufacture

F - Mech Eng,Light,Heat,Weapons

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F

F16F 9/04 (2006.01) B29D 35/14 (2010.01) B29D 99/00 (2010.01) A41D 31/00 (2006.01) A42B 3/12 (2006.01) A43B 13/18 (2006.01) A43B 13/20 (2006.01) A43B 17/02 (2006.01) A43B 17/03 (2006.01) A43B 21/28 (2006.01)

Patent

CA 2176859

A method for inflating a cushioning devices comprised of at least first and second distinct chambers having an interconnecting passage which provides fluid communication between the chambers. The method comprises either: (1) limiting the volume of at least one of the chambers, filling the chambers with a fluid at a single inflation pressure from a single inflation point and sealing the interconnecting passage, or (2) filling the chambers with a fluid at a single inflation pressure from a single inflation point compressing at least one of the distinct chambers, and sealing the interconnecting passage. The method is particularly suited to manufacture of a footwear cushion comprised of a body of elastomeric material having a plurality of sealed non-communicating cells having a single inflation point. At least two cells sharing a single sealed inflation passage are at different pressures.

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