Impact-absorbing pad

Details Impact-absorbing pad Impact-absorbing pad

1989-02-03

1991-06-11

Ryan, Patrick

Stock material or miscellaneous articles

Structurally defined web or sheet

Including variation in thickness

428167, 428178, 428188, 4283044, 2267, 5417, 5431, 5442, 5449, 267142, 267153, B32B 320, A47G 906

Patent

active

050231286

ABSTRACT:
Am impact-absorbing pad includes a plurality of parallel, elongated, individually sealed hollow pneumatic tubes with coextensive webbing. Each tube includes opposing lengthwise interior ridges. Upon compression of a tube, the trapped air is compressed and the ridges contact each other, resisting compression and pressing outwardly to spread the force of impact.

REFERENCES:
patent: 2657385 (1953-11-01), Cushman et al.
patent: 2822554 (1958-02-01), Wenzelberger
patent: 4118019 (1978-10-01), Weir
patent: 4142252 (1979-03-01), Storer
patent: 4172749 (1979-10-01), Liggett
patent: 4408365 (1983-10-01), Palmer
patent: 4513048 (1985-04-01), Kaube et al.
patent: 4533583 (1985-08-01), May
patent: 4671028 (1987-06-01), Figone

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