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:
Apr. 17, 1990
Filed:
Dec. 20, 1988
Applicant:
Inventors:
Assignee:
Eagle Industry Co., Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F04C / ;
U.S. Cl.
CPC ...
418256 ;
Abstract
A vane pump in which between an end surface of a rotor and an inner surface of an end wall of a housing having the rotor supported in an eccentric state is interposed a retainer coaxial with the housing or a bearing, and the retainer or bearing is engaged with vanes to define the pratrusion of the vaned to a given amount, and an inner peripheral surface of the housing is formed correspondingly to the end edges of the vanes which rotates while being subjected to said defining to make a clearance therebetween constant.
Sakamaki, Hiroshi. (1990). Vane pump with annular aetainer limiting outward radial vane movement (U.S. Patent No. 4917584). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4917584
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile