Pumps – Motor driven – Electric or magnetic motor
Reexamination Certificate
2006-08-01
2006-08-01
Yu, Justine R. (Department: 3746)
Pumps
Motor driven
Electric or magnetic motor
C326S044000, C418S069000
Reexamination Certificate
active
07083397
ABSTRACT:
Several transmission embodiments selectively communicate rotary drive to an orbiting scroll to achieve capacity modulation. In these embodiments, when the motor is driven in a first direction, the orbiting scroll is driven at a rate which is equal to the motor speed. However, if the motor is driven in a reverse direction, the orbit rate of the orbiting scroll is reduced. The transmission ensures that the orbiting scroll member itself is driven in the proper forward direction regardless of whether the motor is being driven in forward or reverse.
REFERENCES:
patent: 3319494 (1967-05-01), Ulbing
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patent: 4137798 (1979-02-01), Sisk et al.
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patent: 4934910 (1990-06-01), Utter
patent: 5494421 (1996-02-01), Wada et al.
patent: 5803716 (1998-09-01), Wallis et al.
patent: 0052461 (1981-11-01), None
patent: 0126238 (1984-03-01), None
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European Search Report dated Nov. 22, 1999.
Fields Gene Michael
Hill Joe T.
Loprete Joseph F.
Williams John R.
Carlson & Gaskey & Olds
Gray Michael K.
Scroll Technologies
Yu Justine R.
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