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:
Feb. 16, 2016
Filed:
Mar. 21, 2012
Takahiro Niwa, Tokyo, JP;
Hironobu Imanaka, Hamamatsu, JP;
Takeshi Murata, Hamamatsu, JP;
Shinya Wasada, Hamamatsu, JP;
Takahiro Niwa, Tokyo, JP;
Hironobu Imanaka, Hamamatsu, JP;
Takeshi Murata, Hamamatsu, JP;
Shinya Wasada, Hamamatsu, JP;
NICHIAS CORPORATION, Tokyo, JP;
Abstract
A cylinder head gasket includes two main members on two sides, and middle members sandwiched therebetween. The middle members are composed of a first middle member and a second middle member that is separated and distinct therefrom. The first middle member is a metal plate that has cylinder hole rim portions encircling cylinder holes to a particular width, with beads surrounding the cylinder holes being formed in the cylinder hole rim portions. The metal plate either forms separated items, one at each cylinder hole, or else forms an integrated item connected between the cylinder holes. The second middle member is a metal plate that is disposed on the outside of the first middle member and has oil holes and bolt holes. The thickness of the first middle member is greater than that of the second middle member.