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. 24, 1996
Filed:
Nov. 14, 1995
Applicant:
Inventor:
David Sakata, Livonia, MI (US);
Assignee:
Freudenberg-NOK General Partnership, Plymouth, MI (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F01L / ;
U.S. Cl.
CPC ...
1231886 ;
Abstract
An improved valve stem seal assembly for use in an internal combustion engine, including a rigid cylindrical shell having a flange portion and a seal retainer wall at the top portion. The valve stem seal assembly also includes a seal body having an integral spring molded within the body. The seal body having at least one annular lip to engage a reciprocating valve stem and a ridge or lip on the bottom portion of the seal body to engage and center the seal body in its proper position on the valve guide. The seal body being disposed within the rigid shell to form a valve stem seal assembly.