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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 5993177 B1

PDFFull Text
Date of Patent:
Nov. 30, 1999

Filed:

May. 19, 1997

Scroll type compressor with improved variable displacement mechanism

Applicant:
Inventors:

Kiyoshi Terauchi, Isesaki, JP;

Shigemi Shimizu, Sawa-gun, JP;

Akiyoshi Higashiyama, Sawa-gun, JP;

Akihiro Kawano, Maebashi, JP;

Assignee:

Sanden Corporation, Gunma, JP;

Attorney:

Baker & Botts, L.L.P.

Primary Examiner:

Charles G Freay

Assistant Examiner:

Robert Z Evora

Int. Cl.
CPC ...
F04B / ;
U.S. Cl.
CPC ...
417440 ; 417308 ; 417310 ;
Abstract

In a scroll type compressor wherein a fixed scroll (8) has an end plate (8b) and an involute vane (8a) fixed to the end plate and is coupled to a movable scroll (5) so as to define a pair of working spaces therebetween, the end plate of the fixed scroll are formed a pair of cylinders each of which communicates with the working spaces via bypass holes (15a) and (15b) formed in the end plate of the fixed scroll. In each of the cylinders, a cylindrical piston valve member (10) is slidably received for opening and closing the bypass holes. Opening or closing of each bypass hole is determined depending on a position of an axial end of the piston valve member relative to the corresponding bypass hole.

Find Patent Forward Citations

Terauchi, Kiyoshi. (1999). Scroll type compressor with improved variable displacement mechanism (U.S. Patent No. 5993177). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/5993177

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

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