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. 11, 2000
Filed:
Jun. 11, 1998
Atsushi Ishizuka, Kanagawa, JP;
Mitsuhiro Aota, Kanagawa, JP;
Unisia Jecs Corporation, Atsugi, JP;
Abstract
A hydraulic pump includes a pump body having a bearing hole and formed with a seal chamber at an end of the bearing hole and an oil groove therein, the oil groove ensuring hydraulic communication between the pump unit and the seal chamber, a pump cover attached to the pump body to define a concavity for accommodating a pump unit, and a drive shaft arranged through the bearing hole of the pump body. A bearing bush, which is arranged through the bearing hole of the pump body to support the drive shaft, includes bush lugs disposed in the axial direction of the bearing hole of the pump body. Two of the bush lugs disposed at both ends of the bearing bush have seams located circumferentially distant from each other.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile