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:
Jul. 17, 2012
Filed:
Jan. 11, 2008
Keisuke Umehara, Himeji, JP;
Masahisa Kumashiro, Okayama, JP;
Takayuki Hikami, Fukuchiyama, JP;
Kokusan Parts Industry Co., Ltd., Toyonaka-shi, JP;
Abstract
To provide a seal layer-transferred metal gasket that can effectively prevent degradation in seal performance due to the wearing and peeling of the coating layer. A head gasket is interposed between a cylinder block and a cylinder head. In the metal gasket seal layers made by laminating a separation layer, a coating layer and an adhesive layer in this order from the bead sheet side is formed at least on the surface of the bead sheet facing the cylinder block and the cylinder head, and, in a state where the head gasket is interposed between the cylinder block and the cylinder head and the three objects are closely attached to each other, the adhesive layer is adhered to the seal target members, and at least some portions of the coating layer and adhesive layer are separated from the bead sheet with a boundary at the separation layer and then transferred to the seal areas of the cylinder block and cylinder head.