Expansible chamber devices – Plural flexible wall working members
Patent
1990-07-11
1991-11-26
Look, Edward K.
Expansible chamber devices
Plural flexible wall working members
92 50, 92 61, 92 66, 92 92, 92117R, 92151, 92165R, F01B 1900
Patent
active
050673904
ABSTRACT:
A double-acting actuator includes a first tubular body made of an elastic material, a first reinforcing braided structure surrounding the first tubular body, a second tubular body made of an elastic material surrounding the first reinforcing braided structure to form a space outwardly thereof, and a second reinforcing braided structure surrounding the second tubular body. The actuator further includes closure members for closing and joining ends of the first and second tubular bodies and reinforcing braided structures, and guiding device for permitting axial movements of the first and second tubular bodies but restraining lateral movements thereof. The first and second reinforcing braided structures are so constructed that initial braided angles thereof permit of the first braided structure elongating and permit of the second braided structure contracting when the pressurized fluid is supplied into the first and second tubular bodies.
REFERENCES:
patent: 3481254 (1969-12-01), Wetherbee, Jr.
patent: 4008008 (1977-02-01), Vergnet
patent: 4076467 (1978-02-01), Persson
patent: 4111613 (1978-09-01), Sperry
patent: 4130205 (1978-12-01), Luthi
patent: 4792173 (1988-12-01), Wilson
patent: 4860639 (1989-08-01), Sakaguchi
Bridgestone Corporation
Denion Thomas
Look Edward K.
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