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:
Nov. 21, 2006
Filed:
Jun. 21, 2005
Daniel J. Vialard, Novi, MI (US);
Bhawani Tripathy, Ann Arbor, MI (US);
Daniel J. Vialard, Novi, MI (US);
Bhawani Tripathy, Ann Arbor, MI (US);
Federal-Mogul World Wide, Inc., Southfield, MI (US);
Abstract
A head gasket () which acts, when clamped between a cylinder head () and a block () in a liquid cooled internal combustion engine (), to form a seal around the combustion chambers (). A coolant flow path () routes through the engine () and its directed, in part, through the cylinder head () and the block (), with a corresponding flow opening () formed in the head gasket () to accommodate flow of liquid coolant in a normal direction. The head gasket () includes a one-way valve () positioned in the flow opening () to allow the flow of coolant in a normal direction but to prevent the flow of liquid coolant through the flow opening () in an abnormal, reverse direction. The one-way valve () includes movable gate () which may be biased against a valve seat () in a normally closed condition. The one-way valve () can be made as a loose piece article of manufacture which is held in flow opening () by self-locking retention clips.