Chemistry: electrical current producing apparatus – product – and – With pressure equalizing means for liquid immersion operation
Reexamination Certificate
2002-07-25
2008-11-04
Ryan, Patrick (Department: 1795)
Chemistry: electrical current producing apparatus, product, and
With pressure equalizing means for liquid immersion operation
C429S010000
Reexamination Certificate
active
07445861
ABSTRACT:
The invention detects quickly and with high precision abnormalities in fuel cells. In a method of detecting abnormalities in a fuel cell1comprising a plurality of unit cells that generate power by supplying hydrogen gas to an anode and supplying air to a cathode of each unit cell, the abnormality in the fuel cell1is detected based on the speed of the decrease in the cell voltages after stopping the fuel cell, i.e., after stopping the supply of the reacting gases to the fuel cell.
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IPDL JPO Machine Translation for JP 2002-151125 A (publication date of May 4, 2002).
Japanese Office Action for Application No. 2001-228556, dated Jun. 17, 2008.
Hayashi Masanori
Murakami Yoshikazu
Uehara Junji
Yoshida Hiromichi
Honda Giken Kogyo Kabushiki Kaisha
Lahive & Cockfield LLP
Laurentano, Esq. Anthony A.
Ryan Patrick
Walker Keith
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