Pumps – Condition responsive control of pump drive motor – Having timer or delay means
Reexamination Certificate
2005-05-17
2005-05-17
Koczo, Michael (Department: 3746)
Pumps
Condition responsive control of pump drive motor
Having timer or delay means
C062S228300, C417S044300
Reexamination Certificate
active
06893227
ABSTRACT:
A method and apparatus which provides a pressure sensor and/or temperature sensor connected to the low pressure side of a refrigeration system, or the discharge line of a scroll compressor. When the scroll compressor rotates backward, the change of pressure or temperature immediately sends a signal to work with a time-delay relay and a normally closed relay to immediately cut off the electrical power supply to the compressor. Thus, causing the scroll compressor to stop rotating in the undesirable direction.
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Baker & Hostetler LLP
Kendro Laboratory Products, Inc.
Koczo Michael
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