초록 ▼

A method and apparatus for relighting a gas oven following interruption in the operation thereof due to a temporary failure or reduction in the energy level of a source of electric energy comprises instantaneously disconnecting the delivery of pressurized gas to the oven in response to a reduction i

A method and apparatus for relighting a gas oven following interruption in the operation thereof due to a temporary failure or reduction in the energy level of a source of electric energy comprises instantaneously disconnecting the delivery of pressurized gas to the oven in response to a reduction in the level of the electric energy, slowly reducing the pressure of gas in the delivery system, monitoring the pressure of the gas, and restoring the delivery of fuel to the oven only if the energy supply is restored to a proper level within a short period of time and prior to a predetermined reduction of the gas pressure.

대표청구항 ▼

Apparatus for controlling the delivery of a flowable, combustible fuel from a pressurized supply thereof to a fuel burner, said apparatus comprising fuel delivery means extending from said supply to said burner; valve means in said delivery means movable between opened and closed conditions respecti

Apparatus for controlling the delivery of a flowable, combustible fuel from a pressurized supply thereof to a fuel burner, said apparatus comprising fuel delivery means extending from said supply to said burner; valve means in said delivery means movable between opened and closed conditions respectively to enable and disable fuel flow from said supply to said burner; electric circuit means; main switch means for coupling and uncoupling said circuit means to a source of electric energy having a normal value, said circuit means including a plurality of components operable in predetermined sequence to connect said valve means to said energy source and move said valve means from said closed condition to said opened condition; disconnect means in said circuit means operable in response to a reduction from said normal value of said energy source to a lower threshold value to disconnect said valve means from said energy source and move said valve means to said closed condition; reset means in said circuit means operable in response to restoration of the level of said energy at least to said threshold value to effect return movement of said valve means from said closed condition to said opened condition; and timing means in circuit with said reset means for disabling said reset means from effecting said return movement of said valve means following the passage of a predetermined interval of time from said reduction of said energy level of said energy source.