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:
Sep. 15, 2015
Filed:
Mar. 27, 2008
Yasuhiro Murakami, Sakai, JP;
Mikio Kajiwara, Sakai, JP;
Mitsuhiko Kishikawa, Sakai, JP;
Hiroyuki Yamaji, Sakai, JP;
Mie Arai, Sakai, JP;
Yasuhiro Murakami, Sakai, JP;
Mikio Kajiwara, Sakai, JP;
Mitsuhiko Kishikawa, Sakai, JP;
Hiroyuki Yamaji, Sakai, JP;
Mie Arai, Sakai, JP;
Daikin Industries, Ltd., Osaka, JP;
Abstract
A method of manufacturing a scroll member for a compression mechanism installed in a scroll compressor includes a casting step and a cutting step. An iron casting is formed in the casting step, which includes a spiraling part. The iron casting obtained in the casting step is cut during the cutting step in order to obtain a final shape of the scroll member. The iron casting may include a fixed part having a central portion with a first axial thickness and an external periphery portion with a second axial thickness larger than the first axial thickness before the cutting step. A dimension of a specified portion of the spiraling part may be larger before the cutting step is performed than after the cutting step is performed, with the specified portion preferably disposed toward an external periphery of the spiraling part.