Self regulating PTCR heater

Details Self regulating PTCR heater Self regulating PTCR heater

1980-08-29

1986-03-04

Roskoski, Bernard

Electric heating

Heating devices

With heating unit structure

219505, 219553, 338 22R, H05B 310

Patent

active

045741875

ABSTRACT:
A self regulating ceramic PTCR (positive temperature coefficient of resistance) heater has a pair of spaced interdigitated electrodes on one major surface of a ceramic PTCR plate. A heat transfer means is provided for extracting heat from the opposite major surface of the PTCR plate. Best heating efficiency is obtained when the thickness of the PTCR plate is about the same or is less than the average spacing between the electrodes.

REFERENCES:
patent: 2861163 (1958-11-01), Asakawa
patent: 3188594 (1965-06-01), Koller et al.
patent: 3243753 (1966-03-01), Kohler
patent: 3287684 (1966-11-01), Armbruster, Jr.
patent: 3748439 (1973-07-01), Ting et al.
patent: 3885129 (1975-05-01), Fabricius
patent: 4037082 (1977-07-01), Tamada et al.
patent: 4242567 (1980-12-01), Carter

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