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:
Sep. 29, 2020
Filed:
Feb. 13, 2018
Nichias Corporation, Tokyo, JP;
NICHIAS CORPORATION, Tokyo, JP;
Abstract
A heat retention material cartridge fixed to a base member of a heat retention tool of a cylinder bore's bore wall for heat retention of the cylinder bore wall, which includes a thermosensitive expansion rubber, a back-side pressing member, a rectangular opening, a front-side abutting plate cooperative with the back-side pressing member for sandwiching an outer edge portion of the thermosensitive expansion rubber, and an elastic member attached member to which an elastic member is attached. A convex portion being convex toward the side of the back-side pressing member is formed in a portion of the front-side abutting plate where the outer end is not sandwiched by bendable portions. And, the outer edge portion of the thermosensitive expansion rubber is formed in such a manner that the outer end of the thermosensitive expansion rubber is positioned inside an apex of the convex portion.