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:
Aug. 09, 2016
Filed:
Nov. 16, 2011
Keiji Ichihara, Yokohama, JP;
Yasuhiro Numao, Yokosuka, JP;
Sigetaka Uehara, Kamakura, JP;
Nissan Motor Co., Ltd., Yokohama-Shi, Kanagawa, JP;
Abstract
A fuel cell stack is provided that comprises a laminate obtained from unit cells of rectangular plates, end plates disposed at both end surfaces of the laminate, and a pair of reinforcing plates disposed on a first and third outer peripheral surfaces, wherein the respective end plates and reinforcing plates are connected. Each reinforcing plate has a base plate covering that covers the first or third outer peripheral surface of the laminate, and a pair of holding portions that cover the second and fourth outer peripheral surfaces of the laminate partly. Each holding portion supports the laminate as a spring element, and the spring elements are attached in the direction of displacement of the laminate. As a result, the resonant frequency of the laminate is increased and vibration resistance is improved without increasing the parts count.