(19)
(11) EP 1 857 739 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
09.05.2012 Bulletin 2012/19

(43) Date of publication A2:
21.11.2007 Bulletin 2007/47

(21) Application number: 07009672.2

(22) Date of filing: 15.05.2007
(51) International Patent Classification (IPC): 
F23N 5/00(2006.01)
 F23N 5/10(2006.01)
(84) Designated Contracting States:
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC MT NL PL PT RO SE SI SK TR
Designated Extension States:
AL BA HR MK RS

(30) Priority: 17.05.2006 US 801587 P
30.05.2006 US 443492

(71) Applicant: Continental Appliances, Inc. D.b.a. Procom
Brea, CA 92821 (US)

(72) Inventor:
  • Deng David
    Diamond Bar, CA (US)

(74) Representative: Raynor, Simon Mark et al
Urquhart-Dykes & Lord LLP Altius House 1 North Fourth Street
Milton Keynes MK9 1NE
Milton Keynes MK9 1NE (GB)

   


(54) Oxygen depletion sensor


(57) In certain embodiments, an apparatus includes an oxygen depletion sensor that includes a thermocouple, a first nozzle configured to direct heat from combustion of a first gas, liquid, or combination thereof to the thermocouple, a second nozzle configured to direct heat from combustion of a second gas, liquid, or combination thereof to the thermocouple, and a first igniter.







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