Rotary actuator having cast piston and arcuate rack bearing

Details Rotary actuator having cast piston and arcuate rack bearing Rotary actuator having cast piston and arcuate rack bearing

1985-05-31

1986-12-09

Hershkovitz, Abraham

Expansible chamber devices

Abutment connection between working member and power...

92136, 92138, F16J 110

Patent

active

046273310

ABSTRACT:
Rotary actuator of the rack and pinion type. The rotary actuator has a rack with a generally cylindrical outer surface having a recess which receives a rack bearing and an arcuate rack bearing which is received in that recess. The rack bearing has an arcuate, convex outer bearing surface and an arcuate concave inner surface which abuts the rack and the rack has a recessed outer surface which conforms in shape to the inner surface of the rack bearing. The rotary actuator may have two racks as shown. The rotary actuator has a pair of floating pistons associated with each rack.

REFERENCES:
patent: 786467 (1905-04-01), Snider
patent: 2168215 (1939-08-01), Keitel
patent: 3246581 (1966-04-01), Carr
patent: 3376895 (1968-04-01), Pray
patent: 3605409 (1971-09-01), Heese
patent: 3657967 (1972-04-01), Suzuki
patent: 3680443 (1972-08-01), Jenvey
patent: 4260128 (1981-04-01), Tito
patent: 4463662 (1984-08-01), Okuyama

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