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:
Aug. 10, 1987
Applicant:
Inventors:
Bernard G Stritzke, Hanover Park, IL (US);
Brian F Rericha, Downers Grove, IL (US);
Assignee:
Microdot Inc., Darien, CT (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16J / ;
U.S. Cl.
CPC ...
277153 ; 1231 / ;
Abstract
A fixed valve stem oil seal comprises cup-shaped inner and outer cases engageable with the valve guide of a piston-type internal combustion engine. A seal element is disposed between radial flanges on the cases so as to be radially movable relative thereto. The seal element is slidably engageable with the valve stem and said cases so as to effect a seal between the valve and valve guide.