The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Oct. 26, 2010

Filed:

May. 20, 2008
Applicants:

Zheng D. Lou, Plymouth, MI (US);

Thomas J. Joseph, Commerce, MI (US);

Inventors:

Zheng D. Lou, Plymouth, MI (US);

Thomas J. Joseph, Commerce, MI (US);

Assignee:
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
F25B 41/04 (2006.01);
U.S. Cl.
CPC ...
Abstract

A valve assembly for an air conditioning system includes a liquid line port pressurized at a discharge pressure, an evaporator inlet port pressurized at a suction pressure, a sequence valve for controlling a first flow path between the liquid line port and an outlet in response to a differential between the discharge pressure and the suction pressure, and a thermostatic expansion valve that includes an actuator and an expansion valve member for controlling a second flow path between the outlet and the evaporator inlet port in response to a pressure differential across the actuator.


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