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:
May. 03, 2022
Filed:
Dec. 30, 2019
Applicant:
Doosan Fuel Cell America, Inc., South Windsor, CT (US);
Inventors:
Donald Roy, Enfield, CT (US);
Eric O'Brien, Tolland, CT (US);
Assignee:
HyAxiom, Inc., South Windsor, CT (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01M 8/248 (2016.01); H01M 8/0258 (2016.01); H01M 8/0271 (2016.01);
U.S. Cl.
CPC ...
H01M 8/248 (2013.01); H01M 8/0258 (2013.01); H01M 8/0271 (2013.01);
Abstract
A fuel cell includes a fuel cell stack. A pressure plate is arranged on one side of the fuel cell stack. The pressure plate includes a hole, and a tie rod assembly has a tie rod received in the hole. A nut with a conical surface is secured to the tie rod. An isolator is arranged in the hole between the tie rod assembly and the pressure plate. The isolator has a conical portion, and the conical surface engages the conical portion to provide a conical interface. The tie rod assembly applies a clamp load on the fuel cell stack via the conical interface.