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:
Jan. 08, 2013
Filed:
Aug. 07, 2008
Harunori Miyamura, Osaka, JP;
Tadashi Okada, Osaka, JP;
Takayuki Takahashi, Osaka, JP;
Kaname Ohtsuka, Osaka, JP;
Toshihiro Susa, Osaka, JP;
Hiromichi Ueno, Osaka, JP;
Takanori Murono, Osaka, JP;
Harunori Miyamura, Osaka, JP;
Tadashi Okada, Osaka, JP;
Takayuki Takahashi, Osaka, JP;
Kaname Ohtsuka, Osaka, JP;
Toshihiro Susa, Osaka, JP;
Hiromichi Ueno, Osaka, JP;
Takanori Murono, Osaka, JP;
Daikin Industries, Ltd., Osaka, JP;
Abstract
In a screw rotor (), a first suction-side area () is formed in a first side wall surface () of a spiral groove (). In the first side wall surface (), a portion extending from a start point to a point until immediately before a compression chamber () is in a completely-closed state defines the first suction-side area (). The first suction-side area () is thinner than a portion of the first side wall surface () other than the first suction-side area (), and does not contact a gate () of a gate rotor ().