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:
May. 30, 1989
Filed:
Oct. 14, 1987
Applicant:
Inventor:
Edward E Lafever, Hagerstown, IN (US);
Assignee:
Dana Corporation, Toledo, OH (US);
Primary Examiner:
Int. Cl.
CPC ...
F01L / ; F16J / ; F16J / ;
U.S. Cl.
CPC ...
1231 / ; 277152 ; 277189 ; 2772 / ; 2772 / ; 277227 ; 277D / ;
Abstract
A unitary molded valve seal assembly includes a plastic body and an elastomeric seal which is molded in-situ within the plastic body. The plastic seal body preferably fabricated of Hytrel plastic and includes a plurality of obliquely oriented ribs or lips on its inside surface which seal against an engine valve guide. The elastomeric seal is preferably fabricated of Viton rubber and defines an irregular surface having curved regions which retain it within the seal body and a pair of spaced apart lips which sealingly engage the value stem.