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:
Aug. 04, 2009

Filed:

Jan. 21, 2008
Applicants:

Walter T. Grassbaugh, Sidney, OH (US);

John D. Prenger, Jackson Center, OH (US);

Christopher Stover, Versailles, OH (US);

Xiaogeng Su, Industrial Park, CN;

Hanqing Zhu, Suzhou, CN;

Inventors:

Walter T. Grassbaugh, Sidney, OH (US);

John D. Prenger, Jackson Center, OH (US);

Christopher Stover, Versailles, OH (US);

Xiaogeng Su, Industrial Park, CN;

Hanqing Zhu, Suzhou, CN;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F04C 18/00 (2006.01); F01C 19/00 (2006.01); F16J 15/32 (2006.01);
U.S. Cl.
CPC ...
Abstract

A compressor may include a housing, a compression mechanism supported within the housing, and a seal assembly. The housing may include a suction pressure region and a first discharge passage in communication with a discharge pressure region. The compression mechanism may include a second discharge passage in communication with the first discharge passage. The seal assembly may be sealingly engaged with the housing and the compression mechanism to define a chamber and to provide sealed communication between the first and second discharge passages. The seal assembly may include a seal member engaged with the compression mechanism and including a leg having an opening therein. The leg may isolate the chamber from the discharge pressure region when in a first position and may provide communication between the chamber and the discharge pressure region through the opening when in a second position different than the first position.


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