Machine element or mechanism – Gearing – Rotary bodies
Patent
1991-10-22
1993-05-11
Braun, Leslie A.
Machine element or mechanism
Gearing
Rotary bodies
74412R, 74414, 74457, F16H 5517
Patent
active
052091341
ABSTRACT:
A bidirectional synchronous gearing mechanism includes a first gear with a first and second gear profile and a second gear identical to the first gear and with identical first and second gear profiles. The teeth of the two gears are meshed together and the gears are rotatably secured about their respective central axes. Rotation of one of the gears causes rotation of the other gear in an opposite direction.
REFERENCES:
patent: 99683 (1870-02-01), Johnson
patent: 2584558 (1952-02-01), Costa
patent: 3098399 (1963-07-01), Berthiaume
patent: 4685348 (1987-08-01), Takami
patent: 4765195 (1988-08-01), Takami
Product Engineering, "When You Need Noncircular Gears", Mar. 14, 1960.
Francis Dexter
Nguyen David
Apple Computer Inc.
Braun Leslie A.
Madsen Stuart J.
Trousdell William O.
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