Patent ID: 6168418
Filing Date: 2001-01-02
Classification: F23N,Y10T

Abstract:
A delay switch for a gas appliance, the gas appliance comprising a gas valve, the delay switch comprising: a first member; a second member which moves relative to the first member; an activator which moves the second member relative to the first member from a first relative position to a second relative position in a first time period; and a deactivator which moves the second member relative to the first member from the second relative position to the first position in a second time period less than the first time period; wherein the second member is coupled to the gas valve such that when the first and second members are in the second relative position, the gas valve is open, and when the first and second members are in the first relative position, the gas valve is closed; and wherein the activator is coupled to an ignitor such that when the ignitor is first turned on, the activator moves the second member to delay opening the gas valve to prevent any gas from reaching the ignitor during the first time period.