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:
Dec. 17, 1985
Filed:
May. 31, 1984
Hitoshi Ogawa, Himeji, JP;
Mitsubishi Denki Kabushiki Kaisha, Tokyo, JP;
Abstract
A vane type pump device comprising a frame, a shaft rotatably supported by the frame, a rotor secured to the shaft, a plurality of vanes slidably inserted in the rotor in the radial direction, a housing having a cylindrical inner surface whose center is deflected from the axial center of the shaft and an intake port and a discharging port formed in the housing wherein a casing having a cylindrical inner surface with which the vanes are slidably in contact, is rotatably placed between the cylindrical inner surface of the housing and the rotor with the center being coaxial with that of the housing, and the intake port is communicated with the discharging port through an air passage formed between the housing and the casing and a working chamber formed between the casing and the rotor.