Stove automatic shut off control
OwnerCharles W. Newcomerinventor
Life of this patent
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OwnerCharles W. Newcomerinventor
Estimating the term…
A stove automatic shut off control for boiling a liquid which has a hinged platform (20) for holding a liquid container (22) held horizontally by a compression spring (24) which is axially urged downward when the container includes a liquid. Spring tension is changed by manual rotation of a shaft (38) modifying the spring compressive force displaced on the hinged platform by the spring. A contact switch (50) is energized when the weight of the liquid in the container changes from a pre-set level raising the spring. A reset timer (52) and an enunciator (54) communicate with the contact switch and force the control shaft to be pulled inward in a linear direction and also audibly indicate that the stove automatic shut off control is to shut down. To pre-set the apparatus the shaft is rotated with a hand knob (46) to raise the platform and then the shaft is pulled out. The on/off switch (62) is turned “on” and the container, including liquid, is placed on the platform with the knob adjusted until the contact switch energizes pulling the shaft inward. The user adds a small amount of liquid to the container and again pulls the shaft out. The stove automatically shuts off when boiling of the liquid has reduced its weight to the original set point level.
A stove automatic shut off control for boiling a liquid comprising:
A stove automatic shut off control for boiling a liquid comprising:
Dependencies are inferred from the claim text.