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:
Mar. 14, 1989
Filed:
Mar. 14, 1988
Applicant:
Inventors:
Brian F Rericha, Downers Grove, IL (US);
Bernard G Stritzke, Hanover Park, IL (US);
Assignee:
Microdot Inc., Darien, CT (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F01L / ;
U.S. Cl.
CPC ...
1231 / ; 277181 ;
Abstract
A fixed valve stem oil seal comprises a cup-shaped case engageable with the valve guide of a piston-type internal combustion engine. An 'O-ring' type seal element is disposed between radial flanges on the case and the valve guide so as to be radially movable relative thereto. The seal element is slidable engageable with the valve stem, valve guide, and said case so as to effect a seal between the valve and valve guide.