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.:

US 6846587 B1

PDF
Full Text
Expired
Date of Patent:
Jan. 25, 2005

Filed:

Oct. 05, 2001
Applicant:

Jefferson Ys Yang, Orange, CA (US);

Inventor:

Jefferson YS Yang, Orange, CA (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01M 812 ; H01M 200 ; F04B 4308 ; F16K 5100 ;
U.S. Cl.
CPC ...
Abstract

An anode stream recirculation system for a fuel cell, the fuel cell including an anode gas input and an anode gas output, the anode stream recirculation system comprising: an anode gas supply; a switch connected with the anode gas supply; a pressure regulating device connected between the switch and the anode gas input of the fuel cell; a diaphragm pump connected between the anode gas output and the anode gas input of the fuel cell thereby forming an anode gas recirculation; wherein the diaphragm pump has at least a sensor electrically connected with the switch.


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