Heater having over temperature shut off control

A heater is provided with an accurate shutoff device that shuts off (de-energized) the heater upon detecting an over temperature condition. The heater includes a body for holding material (water) to be heated and a first heating element coupled to the body for heating material within the body. The h...

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Bibliographic Details
Main Author THWEATT, JR. CARLISLE
Format Patent
LanguageEnglish
Published 20.12.2005
Edition7
Subjects
BLASTING
ELECTRIC HEATING
ELECTRIC LIGHTING NOT OTHERWISE PROVIDED FOR
ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
ELECTRICITY
FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEATGENERATING MEANS, IN GENERAL
HEATING
LIGHTING
MECHANICAL ENGINEERING
METHODS OF STEAM GENERATION
RANGES
STEAM BOILERS
STEAM GENERATION
VENTILATING
WEAPONS
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Summary:A heater is provided with an accurate shutoff device that shuts off (de-energized) the heater upon detecting an over temperature condition. The heater includes a body for holding material (water) to be heated and a first heating element coupled to the body for heating material within the body. The heater also includes a temperature sensitive element coupled to the body for sensing temperature, and a shutoff switch coupled to the temperature sensitive element for shutting off the first heating element when the temperature sensitive element senses a temperature limit. The heater further includes a second heating element for heating the temperature sensitive element upon activation of the switch such that the first heating element is actively forced to remain shut off.
Bibliography:Application Number: US20040755797