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US 4,829,981 AGranted
Portable warming apparatus for a cup
OwnerAlona R. Burrellinventor
Life of this patent
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Abstract
A portable apparatus for warming a cup and its contents has a fuel reservoir connected through a valve controlled by a snap switch to a combustion cage. A thermocouple under the combustion cage returns the snap switch to an "OFF" position, cutting off the flow of fuel, once a predetermined temperature has been reached.
Claims9
An apparatus for heating the contents of a vessel such as a cup containing a beverage, comprising:
- a housing with an upper surface adapted to support and transmit heat to said vessel;
- burner means within said housing,
- a fuel reservoir connected to said burner;
- ignition means for said burner;
- valve means to control flow of fuel from said reservoir to said burner;
- switch means to control said valve means;
- and
- thermocouple means connected to said switch means such that said thermocouple means, upon sensing a maximum predetermined temperature, moves the switch to close the valve and thereby shuts off the flow of fuel from said reservoir to said burner, said thermocouple means being positioned below both said upper surface of said housing and said burner means.
5 more elements
Dependencies are inferred from the claim text.