Patent ID: 9523501
Filing Date: 2016-12-20
CPC Classification: F23N,F23Q

Claim Text:
1. Gas regulator fitting with electronic ignition for a gas-fired heating device or the like with an electronic control unit fed by a voltage source, a thermoelectric ignition safety valve ( 26 ) controllable by a ignition safety magnet ( 34 ) and a main valve ( 20 ) which jointly serve both as a safety pilot and as a means of splitting the gas flow into proportions for a main burner and a pilot light, and are accommodated with additional, secondary functional elements in a segmented housing ( 1 ), a tappet ( 10 ) arranged axially to the ignition safety valve ( 26 ) and the main valve ( 20 ), which protrudes from the gas-conducting chamber of the housing ( 1 ) and can be activated in a longitudinal direction against the force of a return spring ( 12 ) such that the ignition safety valve ( 26 ) is in the open position and the main valve ( 20 ) is in the closed position, and with a micro switch ( 13 ) arranged on the housing ( 1 ) and connected to the electronic control unit, said micro switch assuming its closed position on a manual actuation of the tappet ( 10 ) in a longitudinal direction against the force of the return spring ( 12 ) so that when the gas regulator fitting is in its deactivated state an electrical signal is received by the electronic control unit, whereby said control unit is activated and thus the gas flowing through the opened ignition safety valve ( 26 ) is ignited, characterised in that on activation of the gas regulator fitting the ignition safety magnet ( 34 ) is excited by a current flowing across the micro switch ( 13 ), and that a second micro switch ( 14 ) series-connected in the thermal current circuit is arranged on the housing ( 1 ) and assumes its open position on a manual actuation of the tappet ( 10 ) in a longitudinal direction against the force of the return spring ( 12 ) and that both micro switches ( 13 ; 14 ) can be operated in such a way via the selector contours ( 15 ; 16 ) assigned to them and located on the tappet ( 10 ) that the first micro switch ( 13 ) is closed, before the second micro switch ( 14 ) is opened, whereas the second micro switch ( 14 ) is closed, before the first micro switch ( 13 ) is opened when the tappet ( 10 ) assumes its initial position under the force of the return spring ( 12 ).