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US 5,975,884 AGranted
Stand-alone device for igniting, regulating and operating gas appliances
AssigneeH. Barry Bone
InventorArthur Ralph Dugger
Life of this patent
Estimating the term…
Abstract
A temperature control system for gas operated devices. The system includes a burner (23) that is connected to a gas supply through a regulator (41). A pilot light assembly (26) has a first vane (29) and a second vane (32) which provide a flame for igniting the gas from the burner (23) and for heating a thermocouple (38) to produce a control voltage for operating the regulator (41) and a temperature control (44).
Claims26
An apparatus for controlling the temperature output of a gas operated device, comprising:
- a) a pilot light assembly having at least one vane and a pilot gas valve;
- b) a thermocouple positioned in proximity to the vane so that heat from the pilot light assembly is capable of generating voltage that causes an electrical current to flow;
- c) a main gas valve connected to a supply of gas and electrically wired to the thermocouple so that the main valve is capable of opening in response to the electric current from the thermocouple and the main valve is capable of closing in response to the lack of the electric current from the thermocouple, the main valve associated with the pilot valve such that the main valve opens when the pilot valve opens;
- and
- d) a temperature control comprising a temperature sensor, the temperature control electrically wired to the main valve and the thermocouple so that the main valve closes when a preset temperature is detected by the temperature sensor, the temperature control electrically operated by the electric current from the thermocouple independently of an external power supply,
- wherein the pilot valve and main valve are manually opened for igniting the gas operated device and thereafter the control voltage to the temperature control for operating the main valve is provided by the electric current generated by the thermocouple independently of an external electric power supply.
3 more elements
An apparatus for controlling the temperature output of a gas operated device, comprising:
- a) a pilot light assembly having at least one vane and a pilot gas valve;
- b) a thermocouple positioned in proximity to the vane so that heat from the pilot light assembly is capable of generating voltage that causes an electrical current to flow;
- c) a main gas valve connected to a supply of gas and electrically wired to the thermocouple so that the main valve is capable of opening in response to the electric current from the thermocouple and the main valve is capable of closing in response to the lack of the electric current from the thermocouple, the main valve associated with the pilot valve such that the main valve opens when the pilot valve opens;
- d) a temperature control comprising a temperature sensor, the temperature control electrically wired to the main valve and the thermocouple so that the main valve closes when a preset temperature is detected by the temperature sensor, the temperature control electrically operated by the electric current from the thermocouple independently of an external power supply;
- and,
- e) a gas burner connected to the main valve and positioned near the vane such that gas from the main valve is capable of passing through the burner and being caused to ignite by the pilot light assembly,
- wherein the pilot valve and main valve are manually opened for igniting the gas operated device and thereafter the control voltage to the temperature control for operating the main valve is provided by the electric current generated by the thermocouple independently of an external electric power supply.
4 more elements
An apparatus for controlling the temperature output of a gas operated device, comprising:
- a) a pilot light assembly having at least one vane and a pilot gas valve;
- b) a thermocouple positioned in proximity to the vane so that heat from the pilot light assembly is capable of generating voltage that causes an electrical current to flow;
- c) a main gas valve connected to a supply of gas and electrically wired to the thermocouple so that the main valve is capable of opening in response to the electric current from the thermocouple and the main valve is capable of closing in response to the lack of the electric current from the thermocouple, the main valve associated with the pilot valve such that the main valve opens when the pilot valve opens;
- d) a temperature control comprising a temperature sensor, the temperature control electrically wired to the main valve and the thermocouple so that the main valve closes when a preset temperature is detected by the temperature sensor, the temperature control electrically operated by the electric current from the thermocouple independently of an external power supply;
- and,
- e) a gas burner connected to the main valve and positioned near the vane such that gas from the main valve is capable of passing through the burner and being caused to ignite by the pilot light assembly;
- and,
- f) a frame supporting the pilot light assembly, the gas burner, the thermocouple, the temperature control and the main valve,
- wherein the pilot valve and main valve are manually opened for igniting the gas operated device and thereafter the control voltage to the temperature control for operating the main valve is provided by the electric current generated by the thermocouple independently of an external electric power supply.
6 more elements
An apparatus for controlling the temperature output of a gas operated device, comprising:
- a) a pilot light assembly having at least one vane and a pilot means for controlling the flow of a supply of gas;
- b) means for generating DC control voltage from a heat source and positioned in proximity to the heat source so that the heat therefrom is capable of generating voltage that causes an electrical current to flow;
- c) main means for controlling the flow of a supply of gas, the main control means electrically wired to the generating means so that the main control means is capable of operating in response to the control voltage from the generating means, the main control means associated with the pilot valve such that the main control means opens to allow a flow of gas therethrough when the pilot control means opens to allow a flow of gas therethrough;
- and,
- d) a temperature control comprising a temperature sensor, the temperature control electrically wired to the main control means and the generating means so that the main control means closes when a preset temperature is detected by the temperature sensor, the temperature control electrically operated by the electric current from the generating means independently of an external power supply,
- wherein the pilot control means and main control means are manually opened for igniting the gas operated device and thereafter the control voltage to the temperature control for operating the main control means is provided by the electric current from the generating means independently of an external electric power supply.
3 more elements
Dependencies are inferred from the claim text.