Portable electrical heating unit with automatic cutoff

Details Portable electrical heating unit with automatic cutoff Portable electrical heating unit with automatic cutoff

1978-08-07

1979-08-14

Mayewsky, Volodymyr Y.

Electric heating

Heating devices

Combined with container, enclosure, or support for material...

219430, 219436, 219432, 219441, 219455, 219518, F27D 1102

Patent

active

041646444

ABSTRACT:
A heating unit for heating the contents of a container includes an electrical circuit having a pressure responsive switch that is normally open and a thermally responsive switch that is normally closed, the pressure switch is responsive to a predetermined weight of the container on a pivotally mounted heating element for activating the switch to the closed position for activating the heating circuit. The thermal switch is responsive to an overheating of the unit to interrupt the circuit. The heating unit is provided with a heating element having a conical center portion surrounded by an annular flat or planar surface, for receiving containers having only a predetermined shaped bottom for accommodating the particular shape of the heating element.

REFERENCES:
patent: 1650999 (1927-11-01), Preston
patent: 1961756 (1934-06-01), French
patent: 2360691 (1944-10-01), Kuhn et al.
patent: 2422580 (1947-06-01), Meier
patent: 2520788 (1950-08-01), Wales
patent: 2702336 (1955-02-01), Wagner et al.
patent: 3004131 (1961-10-01), Gilissen
patent: 3315064 (1967-04-01), Carlberg et al.
patent: 3328561 (1967-06-01), Sakamoto et al.
patent: 3610884 (1971-10-01), Evans
patent: 3760149 (1973-09-01), Harsanyi

Affiliated with

Also associated with

Rating

Portable electrical heating unit with automatic cutoff does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Portable electrical heating unit with automatic cutoff, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Portable electrical heating unit with automatic cutoff will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1377276