Dual fuel gas valve and gas grill
OwnerDaniel Parrishinventor
Life of this patent
Estimating the term…
Abstract
A duel fuel gas control valve controls the supply of gas (e.g., natural gas or liquid propane gas) to a gas grill. The duel fuel gas control valve is structured to control either natural or LP gas flow at the desired operating characteristics based on conventional gas supply characteristics and gas grill requirements. A restrictor mechanism, when in first and second configurations, respectively, restricts movement of the valve core to a first predetermined range for a first mode of operation (first type of gas supply) and to a second predetermined range for a second mode of operation (second type of gas supply).
Claims21
A gas control valve comprising:
- a first inlet port operable for receiving gas from a gas source;
- an inner nozzle having a first orifice for outputting gas;
- an outer nozzle having a second orifice for outputting gas, the second orifice adjacent the first orifice;
- and
- a valve core having one or more ports for receiving gas from the first inlet port and structured to direct gas from the first inlet port through a by-pass chamber and through the second orifice when the valve core is in a first position, and direct gas through a first chamber and through the first orifice and the second orifice and not through the by-pass chamber when the valve core is in a second position.
The gas control valve in accordance with claim 9 wherein the first mode of operation is a natural gas mode and the second mode of operation is a liquid propane mode.
A method of converting a gas cooking grill from a first type of gas supply to a second type of gas supply using a duel fuel gas control valve, the method comprising:
- removing at least a portion of a removable restrictor mechanism from a first position, the restrictor mechanism restricting movement of a gas control valve within a gas cooking grill to a first predetermined range of motion when in the first position;
- and
- installing the removed portion of the removable restrictor mechanism into a second position, the restrictor mechanism restricting movement of the gas control valve to a second predetermined range of motion when in the second position.
A gas grill comprising:
- a plurality of gas burners;
- a plurality of gas control valves, each gas control valve comprising,
- an inlet port operable for receiving gas from a gas source,
- an inner nozzle having a first orifice for outputting gas,
- an outer nozzle having a second orifice for outputting gas, the second orifice adjacent the first orifice,
- a valve core having one or more ports for receiving gas from the first inlet port and structured to direct gas from the first inlet port through a by-pass chamber and through the second orifice when the valve core is in a first position, and direct gas through a first chamber and through the first orifice and the second orifice and not through the by-pass chamber when the valve core is in a second position, and
- a valve stem coupled to the valve core;
- and
- a plurality of restrictor mechanisms, each restrictor mechanism corresponding to one of the plurality of gas control valves and restricting rotational movement of the valve stem and valve core.
-25. (canceled)
Dependencies are inferred from the claim text.