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.:

US 6679688 B1

PDF
Full Text
Expired
Date of Patent:
Jan. 20, 2004

Filed:

Feb. 14, 2002
Applicant:
Inventors:

Takashi Sato, Saitama, JP;

Kenzo Matsumoto, Gunma, JP;

Yoshiaki Hiruma, Gunma, JP;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F04B 3/910 ; F16K 1/516 ;
U.S. Cl.
CPC ...
F04B 3/910 ; F16K 1/516 ;
Abstract

A refrigerant compressor has a member forming a compression chamber with a discharge port and a discharge reed valve. The reed valve has a valve cover portion at one end for opening and closing the discharge port and a portion at another end that is fixed to the member. A valve restricting plate is fixed to the member forming the compression chamber together with the fixed portion of the discharge valve so as to overlie the reed valve and to restrict the opening amount of the reed valve cover portion. The valve restricting plate has a head portion wider than a middle portion thereof which head portion opposes the valve cover portion of the discharge valve against which it can come into contact A through hole or notch is provided in the restricting plate head portion to provide back pressure flow communication that acts on the cover portion of the reed valve to prevent it from sticking to the valve restricting plate.


Find Patent Forward Citations

Sato, Takashi. (2004). Reed valve restriction plate with anti-sticking means (U.S. Patent No. 6679688). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/6679688

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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