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. 17, 1985
Filed:
Dec. 15, 1983
Yasufumi Ideta, Sagamihara, JP;
Tadashi Fujikawa, Sagamihara, JP;
Nissan Motor Co., Ltd., Yokohama, JP;
Abstract
A vane pump has a housing comprising a pump cover and a pump housing. The pump cover is integrally formed with a hollow fixed shaft projecting therefrom and inserted loosely into a longitudinal hole of the pump housing. Received in the housing are a cam ring, a rotor eccentrically disposed for rotation within the cam ring, a plurality of vanes radially slidably provided through the rotor, a pair of annular vane rings disposed coaxially with the cam ring and an annular centering member mounted to the base portion of the fixed shaft adjacent the pump cover such that the centering member is arranged in a radially shifted position from the annular vane rings.