Patent ID: 8490947

Claim:
A gas valve for regulating gas supplied to a fireplace, the valve comprising: a valve body having an input port connectable to a gas source, an output port for supplying combustible gas to the fireplace, a stem portion with an internal thread, and a seat defining a gas passageway disposed between the input port and the output port so that the gas flowing into the valve from the input port flows out of the valve through the output port by way of the gas passageway; a valve member selectively traversable closer to or further away from the seat for regulating gas flowing through the gas passageway; a valve shaft attached to the valve member and threadably engaged to the internal thread, the valve shaft being rotatable for transversing the valve member closer to or further away from the seat; a pin attached to the valve shaft protruding radially outward from the valve shaft; a first adapter stationary with respect to the valve body, the adapter having a limit surface for limiting rotation of the valve shaft to limit maximum gas flow through the gas passageway; a second adapter mounted to the valve body, the first adapter rotatably mounted to the second adapter for adjusting the maximum gas flow; a set screw threaded into a side of the second adapter and frictionally engageable to the first adapter for providing an option to fix an angular position of the first adapter with respect to the pin by frictionally engaging the set screw to the first adapter to limit the maximum gas flow or to allow free rotation of the first adapter within the second adapter by loosening the set screw so that the maximum gas flow is not limited by the limit surface.