Anti-backlash gear bearings

Details Anti-backlash gear bearings Anti-backlash gear bearings

2005-05-02

2009-06-09

Lewis, Tisha D (Department: 3655)

Planetary gear transmission systems or components

Planetary gearing or element

Particular gear tooth feature

C475S335000

Reexamination Certificate

active

07544146

ABSTRACT:
A gear bearing having a first gear and a second gear, each having a plurality of teeth. Each gear operates on two non-parallel surfaces of the opposing gear teeth to perform both gear and bearing functions simultaneously. The gears are moving at substantially the same speed at their contact points. The gears may be roller gear bearings or phase-shifted gear bearings, and may be arranged in a planet/sun system or used as a transmission. One preferred embodiment discloses and describes an anti-backlash feature to counter “dead zones” in the gear bearing movement.

REFERENCES:
patent: 1901194 (1933-03-01), Salerni
patent: 1970251 (1934-08-01), Rossman
patent: 3330171 (1967-07-01), Nasvytis
patent: 3406593 (1968-10-01), Vessey
patent: 3789700 (1974-02-01), Cotreau et al.
patent: 5293107 (1994-03-01), Akeel
patent: 5529547 (1996-06-01), Okuda et al.

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