Piston return spring system with self-adjusting clearance featur

Details Piston return spring system with self-adjusting clearance featur Piston return spring system with self-adjusting clearance featur

1992-11-13

1994-05-03

Look, Edward K.

Expansible chamber devices

With separate biasing means for working member

92130B, 267163, 188 723, 188 718, F01B 3100, F16D 5522, F16F 118

Patent

active

053077300

ABSTRACT:
A return spring (40,60) operable with piston means (30) for use in fluid operated friction torque transmission devices (11) including relatively rotatable members (12,13) carrying a plurality of torque plates (18,22), one of the members providing a fluid chamber (34) in which the piston means is reciprocable. Such a spring comprises flexible base means (41,61) carried within a recess (50,51) provided in the rotatable member and spring tab means (43,66) extending from the flexible base means and engageable with a wall (52) of the piston means; the tab means being movable with the piston means upon movement thereof in and out of the chamber in response to activation of the piston means.

REFERENCES:
patent: 2878901 (1959-03-01), Runner
patent: 3439781 (1969-04-01), Ostwald
patent: 3575268 (1971-04-01), Kimata

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