Actuator

Details Actuator Actuator

1986-12-12

1988-05-31

Staab, Lawrence J.

Machine element or mechanism

Mechanical movements

Reciprocating or oscillating to or from alternating rotary

744115, F16H 2522, F16H 5710

Patent

active

047473193

ABSTRACT:
An actuator causes an elevating motion of an output rod fitted around a threaded shaft as the latter rotates. A lock mechanism which prevents an unintended rotation of the threaded shaft or a brake which frictionally prevents such rotation is provided in response to the application of either compressive or tensile load upon the output rod when the output rod has been raised and held stationary.

REFERENCES:
patent: 2431430 (1947-11-01), Shaw
patent: 3449978 (1969-06-01), Stimpson
patent: 3559499 (1971-02-01), Profet
patent: 3792619 (1974-02-01), Cannon et al.
patent: 3802281 (1974-04-01), Clarke
patent: 3994178 (1976-11-01), Hore
patent: 4149430 (1979-04-01), F'Geppert
patent: 4635491 (1987-01-01), Yamano
Chironis, Mechanisms, Linkage & Mechanical Controls, McGraw-Hill, 1965, pp. 26-29.

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