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:
Mar. 27, 2018
Filed:
Jan. 23, 2009
Yoshihiro Kataoka, Kusatsu, JP;
Yasukazu Nabetani, Kusatsu, JP;
Kazuo Ida, Sakai, JP;
Azusa Ujihara, Uwajima, JP;
Yoshihiro Kataoka, Kusatsu, JP;
Yasukazu Nabetani, Kusatsu, JP;
Kazuo Ida, Sakai, JP;
Azusa Ujihara, Uwajima, JP;
Daikin Industries, Ltd., Osaka, JP;
Abstract
A compressor includes a hermetic container, a compression mechanism section disposed in the hermetic container, and a motor disposed in the hermetic container to drive the compression mechanism section. The motor has a rotor and a stator disposed so as to surround an outer periphery of the rotor. The stator includes a stator core and oil passage grooves. The stator core has a hollow circular cylindrical section and a plurality of circumferentially arranged teeth protruding radially inward from an outer peripheral surface of the hollow circular cylindrical section. The oil passage grooves are located radially outside of the teeth. The oil passage grooves are formed by cutting an outer peripheral surface of the hollow circular cylindrical section.