Safety arrangement in a gas operated apparatus
AssigneeAktiebolaget Electrolux
InventorPeter E. Blomberg
Life of this patent
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Abstract
A safety arrangement in a gas-operated apparatus, such as an absorption refrigerator, having a safety device that controls the gas system and, when required, automatically re-ignites the flame of the gas burner that has become extinguished. The system has a thermostat that is connected to a switch for opening a gas valve when it is necessary to supply gas to the burner. A filament or igniter is also provided which is arranged adjacent to the burner and has a switch which breaks the circuit to the gas valve when a sensor or flame detector at the burner is exposed to a flame.
Claims8
A control arrangement in a gas operated apparatus having a burner comprising:
- a gas supply conduit, a valve for said conduit, a thermostat controlled by said valve, a safety device in said conduit for the burner of said apparatus, an electric gas control circuit, a source of electrical energy connected to said gas control circuit for controlling the operation of said burner and automatically re-igniting the burner flame in the event said flame becomes extinguished, a first switch in said conduit, said thermostat being connected to said first switch so as to close said circuit when a burner flame is desired, said safety device having a valve in said circuit including a member for opening said valve in said safety device thereby permitting gas flow to said burner, an igniter and a flame detector located adjacent to said burner, and a second switch in said circuit arranged to break said circuit when said flame detector is exposed to a flame.
Dependencies are inferred from the claim text.