Machine element or mechanism – Gearing – Plural power paths to and/or from gearing
Reexamination Certificate
2006-03-28
2006-03-28
Estremsky, Sherry (Department: 3681)
Machine element or mechanism
Gearing
Plural power paths to and/or from gearing
C475S257000, C475S267000
Reexamination Certificate
active
07017447
ABSTRACT:
A driving device includes a power supply unit and a torque converter. The power supply unit outputs a constant power. The torque converter has a gear train that is connected to the power supply unit and interconnects a flywheel and an input shaft in order to respectively transmit a first part and a second part of the power to the flywheel and the input shaft. The input and output shafts have respectively first and second variable-diameter pulleys on which a belt member is trained. The effective diameters of the first and second pulleys are automatically varied in response to the torque exerted on the input and output shafts to maintain the rotational speed of the output shaft at a constant level while the flywheel compensates for power variation of the output shaft without changing the power of the power supply unit.
REFERENCES:
patent: 3870116 (1975-03-01), Seliber
patent: 3886810 (1975-06-01), Sugiyama et al.
patent: 4499965 (1985-02-01), Oetting et al.
patent: 4525661 (1985-06-01), Mucsy et al.
patent: 4588040 (1986-05-01), Albright et al.
patent: 6488605 (2002-12-01), Van Druten et al.
Mu Chung-Nan
Tu Yu-Ta
Bacon & Thomas PLLC
Estremsky Sherry
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