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:
Dec. 02, 2014
Filed:
Dec. 21, 2012
Sanwa Packing Industry Co., Ltd., Osaka, JP;
Kazuyo Akimoto, Osaka, JP;
Sanwa Packing Industry Co., Ltd., Osaka, JP;
Abstract
The present invention has an object of providing a cushioning device having a stable and superb vibration-damping property and a metal cover attachable by use of the cushioning device. A cushioning device, which is to be located between an exhaust manifold as a vibration source and a heat insulator as a connection target and connects the exhaust manifold and the heat insulator to each other and cushions transmission of a vibration from the exhaust manifold to the heat insulator, includes a multi-stage coiled and spiral spring for cushioning the vibration, a grommet for joining the multi-stage coiled and spiral spring and the heat insulator to each other, and a collar member located between an attaching bolt tightened to the exhaust manifold and the multi-stage coiled and spiral spring. The multi-stage coiled and spiral spring is formed of a wiring member having a spiral shape as seen in a plan view.