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:
Jan. 12, 2010
Filed:
Feb. 27, 2007
Applicant:
Hideyuki Furuyama, Fukushima, JP;
Inventor:
Hideyuki Furuyama, Fukushima, JP;
Assignee:
NOK Corporation, Kanagawa, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B29C 41/46 (2006.01); F16J 15/52 (2006.01); B23B 27/06 (2006.01);
U.S. Cl.
CPC ...
Abstract
A sliding portion between a seal lip () and the circumference of a shaft () is made of a sliding face () so that the facial pressure at the initial action time can be lowered to suppress the proceeding of the wear of the seal lip () thereby to elongate the lifetime of a sealing device (). Moreover, screw ridges () are formed from an atmospheric side slope () to a sliding face () so that satisfactory sealing properties can be exhibited initially and endurably for a long time.