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. 09, 2003
Filed:
Nov. 07, 2001
Applicant:
Inventors:
Hironobu Hosoda, Saitama, JP;
Noriaki Maneyama, Saitama, JP;
Assignee:
Showa Corporation, , JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16J 1/532 ;
U.S. Cl.
CPC ...
F16J 1/532 ;
Abstract
In an oil seal of a hydraulic shock absorber, the oil seal is made of a nitrile rubber of a low nitrile, and an inner diameter of a second lip is set to be smaller within a range between 0.3 and 1.0 mm &phgr; than an outer diameter of a piston rod.