Pumps – Condition responsive control of pump drive motor – In response to pump speed
Reexamination Certificate
2007-11-20
2007-11-20
Stashick, Anthony D. (Department: 3746)
Pumps
Condition responsive control of pump drive motor
In response to pump speed
C417S018000, C417S044200
Reexamination Certificate
active
10767026
ABSTRACT:
A compressed air system and method of operating the system wherein the slip between the compressor motor and its powering alternator is used as an indication of whether the compressor is running in a loaded or unloaded mode. A slip parameter such as % Slip is determined and compared to an allowable value in real time. If the compressor is determined to be erroneously in a loaded mode, a corrective action may be taken to reduce the probability that the motor is later started with the compressor still in the loaded mode.
REFERENCES:
patent: 4661751 (1987-04-01), Werner
patent: 5214367 (1993-05-01), Uesugi
patent: 6026587 (2000-02-01), Cunkelman et al.
patent: 6238188 (2001-05-01), Lifson
patent: 6390779 (2002-05-01), Cunkelman
patent: 2003/0042861 (2003-03-01), Schwartz et al.
Bliley Richard Gerald
Dean Jason Arthur
Kisak Jeffrey James
Linebach Mark Alan
Pelkowski Stephen Matthew
Beusse Wolter Sanks Mora & Maire, P.A.
General Electric Company
Hamo Patrick
Hanze, Esq. Carlos
Mora, Esq. Enrique J.
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