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:
Oct. 23, 2001
Filed:
Nov. 29, 1999
Applicant:
Inventors:
Alan William Atkinson, Nr Rugby, GB;
Melanie Jayne Walsh, Nr Daventry, GB;
Assignee:
Federal-Mogul Technology Limited, Rugby, GB;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F16K 1/514 ; F01M 1/16 ; F02F 1/100 ; F16J 1/510 ;
U.S. Cl.
CPC ...
F16K 1/514 ; F01M 1/16 ; F02F 1/100 ; F16J 1/510 ;
Abstract
A head gasket which acts, when clamped between a head and a cylinder block of an internal combustion engine, to form a seal around at least one lubricant or hydraulic fluid passage which extends between the head and the block. The gasket also comprises a non-return valve which extends across said passage and allows flow of liquid in said passage towards the head but prevents flow of liquid in said passage towards the block.