Rod clamping device for a linear fluid actuator

Details Rod clamping device for a linear fluid actuator Rod clamping device for a linear fluid actuator

1997-04-18

1998-08-11

Denion, Thomas E.

Expansible chamber devices

With releasable stop or latch means to prevent movement of...

Includes interfitting parts engageable at plural positions...

92 18, 92 24, 92 28, F15B 1526

Patent

active

057912300

ABSTRACT:
A rod clamp device having a clamp sleeve and a cam member spring biased axially in a direction to actuate the clamp sleeve to a clamp condition, and a clamp release piston that is operable through a mechanical force amplifying mechanism to move the cam member in opposition to the spring to release the clamp sleeve. The clamp release piston is operated in response to fluid pressure to produce a force correlative with the fluid pressure and the clamp release piston moves an annular ramp to force a plurality of ball elements between a thrust surface on an end of the cam ring and a stationary thrust surface and move the can ring axially in a direction to recompress the spring.

REFERENCES:
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patent: 3575087 (1971-04-01), Sherwood
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patent: 3941141 (1976-03-01), Robert
patent: 4537113 (1985-08-01), Stoll
patent: 4577732 (1986-03-01), Gottling
patent: 4890541 (1990-01-01), Spooner
patent: 5137400 (1992-08-01), Sagara
patent: 5540135 (1996-07-01), Goellner

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