US 11,867,396 B2
Device for indicating the status of a gas burner
Barbara Happe, Quedlinburg ot Gernrode (DE)
Assigned to MAXITROL GMBH CO. KG
Appl. No. 16/975,923
Filed by Mertik Maxitrol GmbH & Co. KG, Thale (DE)
PCT Filed Feb. 13, 2019, PCT No. PCT/EP2019/000039
§ 371(c)(1), (2) Date Aug. 26, 2020,
PCT Pub. No. WO2019/166124, PCT Pub. Date Sep. 6, 2019.
Claims priority of application No. 10 2018 001 539.5 (DE), filed on Feb. 27, 2018.
Prior Publication US 2020/0400311 A1, Dec. 24, 2020
Int. Cl. F23N 1/00 (2006.01); H01H 35/34 (2006.01)
CPC F23N 1/007 (2013.01) [H01H 35/346 (2013.01); F23N 2235/20 (2020.01); F23N 2241/08 (2020.01); F23N 2900/05005 (2013.01)] 8 Claims
OG exemplary drawing
 
1. Device for indicating the status of a gas burner when operated with a gas control apparatus with liquid-filled temperature controller comprising: a device connected to an outlet of the gas control apparatus for the gas burner comprises a housing which has at least two interconnected gas-tight chambers, which are separated gas-tight by a membrane connected on one side to an electrically conductive component, wherein a chamber A is connected to the gas outlet of the gas control apparatus, the membrane to which the gas pressure of the gas burner is applied through an opening in the chamber A when the gas valve is open produces a stroke, wherein a chamber B in which the side of the membrane having the connected electrically conductive component is positioned closes a circuit via contact elements led outwards and suitably indicates the operating status, wherein when the gas valve is closed, the stroke of the membrane goes back to the starting position at its own spring constant, the circuit is opened and no operating status is indicated.