Patent ID: 6746233
Filing Date: 2004-06-08
Classification: F23D,Y10T

Abstract:
An actuating mechanism for cleaning out the exit of a gas pilot orifice of a T-shaped gas pilot of an agricultural brooder or other appliance that utilize a gas pilot as an ignition source, the T-shaped gas pilot being formed of a T-tube having an inlet port, an exit port to which the pilot orifice is attached and a gas pilot opening adapted to receive the actuating mechanism, the actuating mechanism comprising:a plunger rod having a free end and a secured end; a clean-out pin mounted to the free end of the plunger rod, the pin having a diameter sized to allow it to pass through the pilot orifice; and a push button assembly attached to the secured end of the plunger, the push button assembly being comprised of: a push button nut for securing the assembly to the gas pilot opening; a push button mounted within the push button nut, the push button having a gas-tight, high-temperature, redundant seal to prevent gas leakage and entry of contaminants and debris into the gas pilot, the actuating mechanism being actuated by the push button to push the plunger rod in the direction of the gas orifice; and, a spring for returning the plunger rod to an open position, the spring being located around the plunger and substantially between the push button and the opening of the pilot.