High ratio, reduced size epicyclic gear transmission for...

Details High ratio, reduced size epicyclic gear transmission for... High ratio, reduced size epicyclic gear transmission for...

2005-11-22

2005-11-22

Estremsky, Sherry (Department: 3681)

Planetary gear transmission systems or components

Planetary gearing or element

Coaxial teeth around planet pinion engage axially spaced...

C475S342000

Reexamination Certificate

active

06966865

ABSTRACT:
A high ratio, double helical epicyclic gear transmission that is primarily intended for use in rotary wing aircraft employs double helical planet gears to obtain a reduction in size of the transmission, to improve the safety of the transmission, and to reduce the noise created by operation of the transmission.

REFERENCES:
patent: 3144790 (1964-08-01), Davis, Jr. et al.
patent: 3540311 (1970-11-01), Chillson
patent: 5472386 (1995-12-01), Kish
patent: 5716300 (1998-02-01), Sammataro et al.

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