Motors: expansible chamber type – Working member position responsive motive fluid control – Working member carries part within working chamber which...
Patent
1980-11-03
1983-02-15
Maslousky, Paul E.
Motors: expansible chamber type
Working member position responsive motive fluid control
Working member carries part within working chamber which...
92 33, 92 85B, 92169, F15B 1522, F01B 300
Patent
active
043734260
ABSTRACT:
A helical rotary actuator has a torque transmitting section that can be a sealing section or a clearance section but which is welded to a ring gear so that torque forces imposed on the ring gear can be carried through the torque transmitting section to the base of the actuator. In the method of fabrication, the splines on the ring gear are cut after a weldment is made between the ring gear and the torque transmitting section of the cylinder. The pistons within the cylinder are hydraulically cushioned.
REFERENCES:
patent: 2688951 (1954-09-01), Seors
patent: 2959064 (1960-11-01), Geyer et al.
patent: 3175725 (1965-03-01), Sampson
patent: 3786728 (1974-01-01), Sheesley et al.
patent: 4152972 (1979-05-01), Fylling
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