Pumps – Motor driven – Electric or magnetic motor
Reexamination Certificate
2007-04-10
2007-04-10
Freay, Charles G. (Department: 3746)
Pumps
Motor driven
Electric or magnetic motor
C418S055100, C418S060000
Reexamination Certificate
active
10600106
ABSTRACT:
A compressor system includes a pair of compressors located in a common shell. A common drive shaft drives both compressors and the drive shaft is powered by a single motor. One or both of the compressors can be equipped with a pulse width modulated capacity control system and a vapor injection system. When one compressor is equipped with these systems, the capacity can be varied between 50% and 110%. When both compressors are equipped with these systems, the capacity can be varied between 0% and 120%.
REFERENCES:
patent: 5123818 (1992-06-01), Gormley et al.
patent: 5211031 (1993-05-01), Murayama et al.
patent: 6672846 (2004-01-01), Rajendran et al.
patent: 6988876 (2006-01-01), Ke et al.
Anderson Gary
Dobrescu Johann
Doutrepont Didier
Ernst Philippe
Iserentante Robert
Emerson Climate Technologies, Inc.
Freay Charles G.
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