Chemistry: electrical current producing apparatus – product – and – Fuel cell – subcombination thereof – or method of making or... – Process or means for producing – recycling – or treating...
Reexamination Certificate
2011-05-03
2011-05-03
Ryan, Patrick (Department: 1726)
Chemistry: electrical current producing apparatus, product, and
Fuel cell, subcombination thereof, or method of making or...
Process or means for producing, recycling, or treating...
C429S400000, C429S408000, C429S430000
Reexamination Certificate
active
07935446
ABSTRACT:
During the operation of a fuel-cell assembly, the latter is supplied with ambient air with the aid of a liquid ring pump. Any foreign matter that is contained in the air is taken up by the service fluid of the liquid ring pump. The charging of the service fluid with foreign matter is controlled. In particular, the service fluid is continuously conducted in an circuit via a purification device.
REFERENCES:
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patent: 5797980 (1998-08-01), Fillet
patent: 199 03 353 (2000-08-01), None
patent: 102 18 673 (2003-11-01), None
patent: 0 850 494 (1998-07-01), None
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patent: 09231990 (1997-09-01), None
Bette Willi
Coerlin Detlev
Stühler Walter
Voitlein Ottmar
Mercado Julian
Ryan Patrick
Siemens Aktiengesellschaft
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