Time knob for gas and electric heater
OwnerShih-Szu Yu, Stephen Chenginventors
Life of this patent
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Abstract
A timer knob arrangement for a heater includes an ignition button and a timer control. The ignition button is rotatably switched between a switched off position and an operation position with respect to an operation pin of the heater. The timer control includes a power unit, a runner wheel driven by the power unit and is rotatably supported by the ignition button at a position tangentially with respect to the operation pin, and a time control unit. When the time control unit is activated to actuate the power unit, the runner wheel is driven to rotate and to run on the operation surface, so as to drive the ignition button turning back to the switched off position for ensuring a flow of gas being shut off from the heater.
Claims20
A timer knob arrangement for a heater which comprises an operation pin rotatably extended from an operation surface, comprising:
- an ignition button having an actuation side, an opposed engaging side defining a receiving cavity therebetween, and a pin holder provided at said engaging side for substantially engaging with said operation pin that said engaging side is facing towards said operation surface of said heater, wherein said ignition button is rotatably switched between a switched off position and an operation position with respect to said operation pin;
- and
- a timer control, which comprises:
- a power unit received in said receiving cavity of said ignition button;
- a runner wheel which is driven by said power unit and is rotatably supported by said ignition button at a position tangentially with respect to said operation pin, wherein a portion of said runner wheel is protruded from said engaging side of said ignition button for substantially running with said operation surface of said heater;
- and
- a time control unit which is received in said receiving cavity and is arranged to actuate said power unit in a timely manner such that when said time control unit is activated to actuate said power unit, said runner wheel is driven to rotate and to run on said operation surface, so as to drive said ignition button turning back to said switched off position for ensuring said heater being shut off from a power source.
Dependencies are inferred from the claim text.