Planetary gear transmission systems or components – With means to vary drive ratio or disconnect drive – Plural elements selectively braked
Reexamination Certificate
2007-01-04
2010-02-16
Estremsky, Sherry L (Department: 3655)
Planetary gear transmission systems or components
With means to vary drive ratio or disconnect drive
Plural elements selectively braked
C475S342000
Reexamination Certificate
active
07662061
ABSTRACT:
The transmission comprises a sun gear fixed to an input shaft, four pinions, and a carrier part connected to an output shaft. Each pinion has a planetary gear engaged with the sun gear, and planetary gears having the number of teeth different from that of that planetary gear. Each internal gear engaged with these planetary gears can perform a independent rotating motion by the rotation of the input shaft. The braking force is selectively applied to the rotating motion of each internal gear by pressing breaking part by the actuator in selecting a gear for gearshift. Here, the braking force is gradually increased to stop the rotating motion. As a result, the a power interrupter becomes unnecessary and the miniaturization of the transmission can be attained.
REFERENCES:
patent: 4621541 (1986-11-01), Takahashi
patent: 5322488 (1994-06-01), Ra et al.
patent: 5326334 (1994-07-01), Ra et al.
patent: 5330395 (1994-07-01), Ra et al.
patent: 5643130 (1997-07-01), Park
patent: 5865703 (1999-02-01), Shiokawa et al.
patent: 5993347 (1999-11-01), Park
patent: 6270441 (2001-08-01), Park
patent: 6302821 (2001-10-01), Lee
patent: 6705967 (2004-03-01), Raghavan et al.
patent: 6991578 (2006-01-01), Ziemer
patent: 52-92065 (1977-08-01), None
patent: 62-92242 (1987-06-01), None
patent: 2001-153191 (2001-06-01), None
patent: 2003-227551 (2003-08-01), None
patent: 2004-360777 (2004-12-01), None
patent: 2005-16704 (2005-01-01), None
patent: 2005016732 (2005-01-01), None
The p. 152 of “Mechanism Book of Automobile” (Tadaaki Idei), published Nov. 22, 1989 by Grand Prix Publishing Corporation in Japan; Together with an English-language translation of the underlined sentence thereof.
Japanese Office Action dated Mar. 10, 2009 (with English translation).
Bishop Erin D
Estremsky Sherry L
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