Differential screw actuator

Details Differential screw actuator Differential screw actuator

1980-06-30

1983-02-15

Herrmann, Allan D.

Machine element or mechanism

Gearing

Directly cooperating gears

744248R, F16H 118

Patent

active

043734049

ABSTRACT:
A differential ball screw actuator permitting the rear ball nut to rotate with the screw over a limited range so that plates to be positioned are displaced and/or tilted in a direct pitch mode for a course adjustment while the differential pitch mode is used for fine or small adjustments only. The actuator can be used for tilting a laser mirror or other precision tilt and/or linear displacements.

REFERENCES:
patent: 3029660 (1962-04-01), Sears
patent: 3037397 (1962-06-01), Allen et al.
patent: 3277736 (1966-10-01), Goodman
patent: 3319481 (1967-05-01), Goodman
patent: 3326054 (1967-06-01), Canick et al.
patent: 3727471 (1973-04-01), Botos
patent: 4060314 (1977-11-01), Heinz

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