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:
Aug. 07, 1984
Filed:
Jun. 24, 1982
Shigeru Machida, Ibaraki, JP;
Kenji Tojo, Shimizu, JP;
Masato Ikegawa, Ibaraki, JP;
Masao Shiibayashi, Shimizu, JP;
Hitachi, Ltd., Tokyo, JP;
Abstract
A scroll fluid apparatus for handling a compressible fluid and including stationary and orbiting scroll members. The stationary scroll member has a high-pressure central port located in the vicinity of the center thereof and having a profile which is defined by a boundary line located in a region defined by first and second circles both being centered at a point located on a straight line extending through the positions in which the inner ends of wraps are contact with the inner side walls of the opposing wraps, respectively, in the reference condition. The first circle has a diameter equal to the distance between the above-mentioned positions and the second circle has a diameter such that it is in contact with the inner side walls of the wraps.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile