Fluid handling – Systems – Programmer or timer
Patent
1987-05-26
1988-07-12
Cohan, Alan
Fluid handling
Systems
Programmer or timer
431 86, F23N 100
Patent
active
047563362
ABSTRACT:
A timer for attachment to a stove operated by manually controlled gas control knobs converts an ordinary manually operated stove to a timer controlled stove without requiring a technician to cut in to the gas lines of the stove. The timer includes a housing with a knob rotating shaft mounted in the housing. A knob gripper is mounted on the end of the knob rotating shaft for gripping the manually operated fuel control knob of the stove. A mechanism is mounted in the housing for rotating the knob rotating shaft. A timer is connected to the mechanism in such a way that if the knob gripper is gripping the fuel control knob, the mechanism rotates the fuel control knob through a predetermined angle, after a time delay determined by the setting of the timer. In this way if the fuel control knob of the stove is connected to a fuel valve shaft, rotation of the fuel control knob rotates the fuel valve shaft to limit the flow of fuel to the burner on the stove.
REFERENCES:
patent: 186672 (1877-01-01), Fryer
patent: 1624168 (1927-04-01), Gschwind
patent: 2373189 (1945-04-01), Klein
patent: 3180358 (1905-04-01), Cogdell
patent: 3820405 (1974-06-01), Hong
Cohan Alan
Rubinstein Julius
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