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:
Jun. 30, 2015
Filed:
Apr. 02, 2012
Takahiro Niwa, Tokyo, JP;
Hironobu Imanaka, Hamamatsu, JP;
Takeshi Murata, Hamamatsu, JP;
Manabu Yasuda, Hamamatsu, JP;
Takahiro Niwa, Tokyo, JP;
Hironobu Imanaka, Hamamatsu, JP;
Takeshi Murata, Hamamatsu, JP;
Manabu Yasuda, Hamamatsu, JP;
NICHIAS CORPORATION, Tokyo, JP;
Abstract
A gasket held between opposite flange joint surfaces with a bolt includes a combination of a complex material with a rubber material formed on one or both sides of a steel plate, the complex material having a convex or waveform bead, and a circular metal plate arranged at a bolt portion with a through-hole where a shank of the bolt penetrates and a bearing corresponding portion that corresponds to a bearing of the bolt around the through-hole. The gasket is configured to have the thickness (H) of the bead provided to the complex material greater than the thickness (H) of the circular metal plate that is equal to or greater than the thickness (H) of the complex material. This structure provides a gasket indicating good sealing properties under such circumstances that a flange has low stiffness, a tightening load is reduced, and the distance between bolts is expanded.