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.
Patent No.:
Date of Patent:
Jul. 15, 2008
Filed:
Mar. 30, 2006
Applicants:
Toru Aya, Shiga, JP;
Toshiharu Yasu, Shiga, JP;
Hiroshi Matsunaga, Shiga, JP;
Inventors:
Assignee:
Matsushita Electric Industrial Co., Ltd., Osaka, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F03C 2/00 (2006.01); F04C 2/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
In a two-cylinder type hermetic rotary compressor, a first cylinder continually operates due to a spring member biasing a first vane. A pressure introducing pipe is connected to a second vane room arranged in a second cylinder. The second cylinder stops and starts operation by introducing sucking pressure or discharge pressure from the pressure introducing pipe. A discharge pressure introducing pipe that is connected to a portion of a hermetic case below the oil face of the lubricating oil is connected to the pressure introducing pipe.