Single-acting rotary pneumatic actuator, including at least a pr

Details Single-acting rotary pneumatic actuator, including at least a pr Single-acting rotary pneumatic actuator, including at least a pr

1988-12-15

1990-03-06

Halvosa, Geroge E. A.

Expansible chamber devices

Relatively movable working members

Interconnected with common rotatable shaft

16 79, 92130R, 92130D, 185 37, 267170, 267174, 267169, F01B 702

Patent

active

049055747

ABSTRACT:
The rotary actuator includes at least a precompressed spring assembly comprising a compression coil spring the ends of which are engaged by flanged cups adapted to limit the spring extension and carried slidably on a pin provided, at each end, with a circlip which prevents the cups from coming off the pin itself.

REFERENCES:
patent: 64087 (1867-04-01), Evans
patent: 287638 (1883-10-01), Davis
patent: 1146933 (1915-07-01), Gallagher Jr.
patent: 1943492 (1934-01-01), Symington
patent: 1989433 (1935-01-01), Symington
patent: 3059268 (1962-10-01), McHale
patent: 4118020 (1978-10-01), Myers
patent: 4282979 (1981-08-01), Friedricks
patent: 4436112 (1984-03-01), Atkins et al.
patent: 4615507 (1986-10-01), Rousset et al.
patent: 4665583 (1987-05-01), Frolav et al.

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