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:
May. 17, 2005
Filed:
Nov. 27, 2002
Kenzo Matsumoto, Gunma, JP;
Haruhisa Yamasaki, Gunma, JP;
Masaya Tadano, Gunma, JP;
Kazuya Sato, Gunma, JP;
Dai Matsuura, Gunma, JP;
Takayasu Saito, Gunma, JP;
Noriyuki Tsuda, Gunma, JP;
Kenzo Matsumoto, Gunma, JP;
Haruhisa Yamasaki, Gunma, JP;
Masaya Tadano, Gunma, JP;
Kazuya Sato, Gunma, JP;
Dai Matsuura, Gunma, JP;
Takayasu Saito, Gunma, JP;
Noriyuki Tsuda, Gunma, JP;
Sanyo Electric Co., Ltd., Osaka, JP;
Abstract
A method for manufacturing a multi-stage compression type rotary compressor which avoids the replacement of parts to be used as much as possible to reduce costs and also which enables easily setting an appropriate displacement volume ratio between first and second rotary compression elements without increasing the size of the compressor outer housing. This is done by altering the inner diameter of the cylinder of one of the rotary compression elements without altering the thickness (or height) of this cylinder to set a displacement volume ratio between the first and second rotary compression elements to an optimum value in accordance with the alteration.