Linear power assist mechanism

Details Linear power assist mechanism Linear power assist mechanism

1982-10-12

1984-11-20

Blix, Trygve M.

Marine propulsion

Screw propeller

With means effecting or facilitating movement of propulsion...

114144R, 74388R, 74480B, 180 651, B63H 2126

Patent

active

044836821

ABSTRACT:
The linear motion power assist mechanism includes a stationary member, a friction drum rotatably supported on the stationary member, an output member mounted for linear, reciprocative movement relative to the stationary member, an input member mounted for linear, reciprocative movement relative to the stationary member and relative to the output member, a first flexible member, such as a wire cable, loosely wound around the drum in one direction, a second flexible member loosely wound around the drum in the opposite direction, and an unidirectional motor rotating the drum. The first cable is tightened on the rotating drum and pulls the output member in a first direction in response to movement of the input member in the first direction. The second cable is tightened on the rotating drum and pulls the output member in the opposite or second direction in response to movement of the input in the second direction.

REFERENCES:
patent: 3135095 (1964-06-01), Peterson
patent: 3140619 (1964-07-01), Miller
patent: 3190387 (1965-06-01), Dow
patent: 3367195 (1968-02-01), Racine
patent: 3776518 (1973-12-01), Witwer
patent: 4123740 (1978-10-01), Palmer et al.
patent: 4131833 (1978-12-01), McAuliffe et al.
patent: 4224832 (1980-09-01), Prohaska et al.
patent: 4419084 (1983-12-01), Borst

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