Cushioning device with improved flexible barrier membrane

Boots – shoes – and leggings – Soles – Spring heel

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36 71, 428 366, 428 367, 428 368, 428 69, 428 76, A43B 1312, A43B 1320

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057131414

ABSTRACT:
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 inflatant pressure for extended periods of time by employing a phenomenon referred to in the industry as diffusion pumping. Ideally, the cushioning devices of the present invention can be permanently inflated with gases such as nitrogen or air.

REFERENCES:
patent: 4257176 (1981-03-01), Hartung et al.
patent: 4340626 (1982-07-01), Rudy
patent: 4429076 (1984-01-01), Saito et al.
patent: 4513058 (1985-04-01), Martin
patent: 4610099 (1986-09-01), Signori
patent: 4614208 (1986-09-01), Skarelius
patent: 4681797 (1987-07-01), Van Iseghem
patent: 4692361 (1987-09-01), Johnston et al.
patent: 4786685 (1988-11-01), Takida et al.
patent: 4864738 (1989-09-01), Horovitz
patent: 4887367 (1989-12-01), Mackness et al.
patent: 4927689 (1990-05-01), Markiewicz
patent: 4936029 (1990-06-01), Rudy
patent: 5003002 (1991-03-01), Ofstein
patent: 5030404 (1991-07-01), Bonnebat et al.
patent: 5036110 (1991-07-01), Moureaux
patent: 5036603 (1991-08-01), Dischler
patent: 5042176 (1991-08-01), Rudy
patent: 5053455 (1991-10-01), Kroggel et al.
patent: 5246761 (1993-09-01), Sasaki
patent: 5292824 (1994-03-01), Nagai et al.
patent: 5346950 (1994-09-01), Negi et al.
patent: 5416988 (1995-05-01), Potter et al.

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