Precise linear actuator

Details Precise linear actuator Precise linear actuator

1981-03-16

1983-10-25

Staab, Lawrence J.

Machine element or mechanism

Mechanical movements

Reciprocating or oscillating to or from alternating rotary

74 25, 74209, F16H 2508, F16H 2518

Patent

active

044111665

ABSTRACT:
A linear actuator mechanism which comprises skewed roller members arranged about a drive shaft and translates rotation of the drive shaft to linear displacement along the shaft includes a pair of body members having a ball joint between them which serves as a pivot about which adjustable spring compression constrains each of the three normal degrees of freedom in the body member pair to provide a kinematic union which eliminates indiscriminate displacement between the actuator mechanism and the drive shaft.

REFERENCES:
patent: 2204638 (1940-06-01), Weathers
patent: 3272021 (1966-09-01), Weber
patent: 3777578 (1973-12-01), Swanberg
patent: 3926062 (1975-12-01), Neff
patent: 4246802 (1981-01-01), Rasmussen et al.

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