(19)
(11) EP 3 904 765 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
16.02.2022 Bulletin 2022/07

(43) Date of publication A2:
03.11.2021 Bulletin 2021/44

(21) Application number: 21170271.7

(22) Date of filing: 23.04.2021
(51) International Patent Classification (IPC): 
F23J 13/02(2006.01)
F23J 15/06(2006.01)
F23D 14/70(2006.01)
F23D 14/12(2006.01)
F23M 9/00(2006.01)
F23D 14/04(2006.01)
F23D 14/14(2006.01)
(52) Cooperative Patent Classification (CPC):
F23J 13/02; F23M 9/003; F23J 15/06; F23D 14/045; F23D 14/70; F23D 14/14; F23D 14/145; F23D 14/151; F23D 2203/103; F23J 2217/30; F23D 2203/1023
(84) Designated Contracting States:
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated Extension States:
BA ME
Designated Validation States:
KH MA MD TN

(30) Priority: 30.04.2020 US 202016863888

(71) Applicant: A.O. Smith Corporation
Milwaukee, WI 53224 (US)

(72) Inventors:
  • SMELCER, Jimmy Charles
    Tennessee 37122 (US)
  • MURPHY, Mark Allen
    Tennessee 37211 (US)
  • SNIVELY, Trent Conor
    Tennessee 37211 (US)
  • BATEY, Billy Anthony
    Tennessee 37184 (US)

(74) Representative: Dauncey, Mark Peter 
Marks & Clerk LLP 1 New York Street
Manchester M1 4HD
Manchester M1 4HD (GB)

   


(54) GAS BURNER ASSEMBLY


(57) An atmospheric gas water heater includes a burner assembly. The burner assembly includes a burner having a body, and a screen member coupled to the body. A conduit is fluidly connected to the body. The conduit has an open end configured to receive gas and air. The flow of gas and air from the open end through the conduit to the body and past the screen member is defined as a downstream direction. The screen member defines a zone of combustion. The gas and the air is 100% premixed together upstream of the zone of combustion. The body of the burner has a first segment extending between a first end and a second end, and second and third segments extending from the first segment. The second segment and the third segment extend parallel to and spaced apart from each other to form a U-shape.







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