Gas heater
AssigneeBromic Pty. Ltd.
InventorScott Smith
Life of this patent
Estimating the term…
Abstract
A gas heater (10) includes heater burner (16). Heat is generated by the ignition of gas supplied to the burner via conduits (20). A solenoid gas safety valve (22), when provided with a threshold electrical current, is maintained in an open condition allowing passage of gas to the burners. When not provided with that threshold current, the valve is closed, preventing the passage of gas. An electrical current generator (28) includes spaced apart thermocouple devices (30, 32). Due to a combined electrical current generation by the thermocouples, the current generator can generate electrical current at least said threshold current even if any one of the thermocouple devices does not generate the threshold electrical current.
Claims12
A gas heater including:
- at least one heater burner having an operational condition in which heat is generated by the ignition of gas supplied to the burner;
- at least one conduit for directing gas from a gas supply to the at least one heater burner;
- a solenoid gas safety valve device having a valve electrical connector and being adapted, when provided via said valve connector with at least a threshold amount of electrical current, to be maintained in an open condition to allow passage of gas from a said gas supply along the at least one conduit to the at least one heater burner, and when not provided with at least said threshold amount of current, to be in a closed condition thereby preventing such passage of gas;
- and
- an electrical current generator which is connected to the valve device via said valve connector and which includes a plurality of thermocouple devices spaced apart from one another, each of the thermocouple devices being located to be in the proximity of, and capable of being heated by, at least one heater burner of the at least one heater burner and to generate electric current on being so heated, the electrical current generator being configured, due to a combined amount of electrical current generation by said thermocouple devices, to generate electrical current of at least said threshold amount for provision to the valve device via the connector, even if any one of the thermocouple devices generates an amount of electrical current within a range from a zero amount of current to a higher amount less than said threshold amount.
A gas heater including:
- at least two heater burners having operational conditions in which heat is generated by the ignition of gas supplied to the burners;
- at least one conduit for directing gas from a gas supply to the at least two heater burners;
- a solenoid gas safety valve device having a valve electrical connector and being adapted, when provided via said valve connector with at least a threshold amount of electrical current, to be maintained in an open condition to allow passage of gas from a said gas supply along the at least one conduit to the at least two heater burners, and when not provided with at least said threshold amount of current, to be in a closed condition thereby preventing such passage of gas;
- and
- an electrical current generator which is connected to the valve device via said valve connector and which includes at least two thermocouple devices, each of said at least two thermocouple devices positioned to sense heat from a respective discrete heater burner, the electrical current generator being configured, due to a combined amount of electrical current generation by said thermocouple devices, to generate electrical current of at least said threshold amount for provision to the valve device via the connector, even if any one of the thermocouple devices generates an amount of electrical current within a range from a zero amount of current to a higher amount less than said threshold amount.
Dependencies are inferred from the claim text.