Electric heating elements

Details Electric heating elements Electric heating elements

1976-06-16

1977-03-01

Mayewsky, Volodymyr Y.

Electric heating

Heating devices

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

29614, 219552, 338241, 219274, H05B 368

Patent

active

040103501

ABSTRACT:
An electric heating element of the metal sheathed type, particularly a range surface unit comprising a spiralled metal tube having one closed end and containing compacted refractory insulation material and a helical coil of resistor alloy insulated from the tube and connected at one end to a center return conductor and having both electrical terminations extending from the other end of the tube, the construction being such that in the event of failure of the heating element, the failure will be in a passive manner.

REFERENCES:
patent: 712749 (1902-11-01), Whittingham
patent: 1684184 (1928-09-01), King
patent: 1735831 (1929-11-01), Lightfoot
patent: 1809089 (1931-06-01), Wiegand
patent: 2455186 (1948-11-01), McCormick
patent: 2494333 (1950-01-01), Daly
patent: 2632834 (1953-03-01), Huck et al.
patent: 2765391 (1956-10-01), Shroyer
patent: 3087134 (1963-04-01), McOrlly
patent: 3521352 (1970-07-01), Volker
patent: 3920963 (1975-11-01), Beasley

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