Gas valve

DETAILED DESCRIPTION The present invention provides attachment of an elastomeric poppet to a bi-metal actuator arm in an electrically operated thermally actuated gasous fuel valve in such a manner that the tendancy of the poppet to stick to the bi-metal arm and be lifted prematurely from its valve seat is eliminated.
The present invention employs a unique configuration of an elastomeric poppet for a electrically operated thermally actuated gaseous fuel valve having a bi-metal arm for effecting movement of the poppet from its valve seat.
The elastomeric poppet employed in the novel valve construction of the present invention has the portions thereof contacted under the preload forces by the end of the bi-metal arm configured so as to provide resilient deformation under such preload forces, yet insure that the elastomeric material responds elastically upon initial movement of the bi-metal arm.
The poppet of the novel valve of the present invention has an annular bead disposed about the neck of the poppet attached to the bi-metal arm, which annular bead is spaced radially outwardly from the neck portion to prevent deformation of the poppet in the region adjacent the contact surfaces of the bi-metal arm.
The annular bead is thus contacted by the bi-metal arm and resiliently absorbs the preload forces applied therefrom.
The present thus provides a unique construction for an electrically operated thermally actuated gaseous fuel valve which provides consistent and reliable operation of the valve for opening at a predetermined flow of electrical current.