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:
Jun. 05, 1990
Filed:
Feb. 16, 1989
Applicant:
Inventors:
John Werth, Princeton, NJ (US);
Imre Fekete, deceased, late of Piscataway, NJ (US);
Assignee:
Engelhard Corporation, Edison, NJ (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02J / ;
U.S. Cl.
CPC ...
364492 ; 180 658 ; 320-3 ; 36442405 ;
Abstract
A fuel cell/battery hybrid power system is disclosed which as a microprocessor based control system. The control system enables the fuel cell to be taken out of the system by a switch when its predetermined maximum desired energy output is about to be exceeded by load requirements. The batteries are protected from overdischarge through a switch and the surge battery is selected by the battery having the highest level of charge at any given time.