Positive temperature coefficient thermistor device for a heating

Details Positive temperature coefficient thermistor device for a heating Positive temperature coefficient thermistor device for a heating

1988-09-09

1990-09-04

Pellinen, A. D.

Electric heating

Heating devices

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

219505, 219530, 219544, H05B 304

Patent

active

049546929

ABSTRACT:
A positive temperature coefficient thermistor device for use in a heating apparatus includes a board-type positive temperature coefficient thermistor element and a first and a second radiator for radiation disposed adjacent a front and a rear surface of the thermistor element, respectively. Each of the first and second radiators has a pair of fitting flanges which are respectively arranged on a pair of opposed sides of each radiator. Such fitting flanges are oriented with their longitudinal ends at right angles to a flow direction of air to be heated by the positive temperature coefficient thermistor device. Corresponding fitting flanges of the first and second radiators are engaged with each other by a pair of pin members which are inserted between respective pairs of opposing surfaces of the facing flanges to hold the flanges in a fixed relation to each other. The thermistor element is contained in a space surrounded by the first and second radiators.

REFERENCES:
patent: 4147927 (1979-04-01), Pirotte
patent: 4327282 (1982-04-01), Nauerth
patent: 4346285 (1982-08-01), Nakamura et al.
patent: 4426573 (1984-01-01), Fudickar et al.
patent: 4447705 (1984-05-01), Bullock
patent: 4728779 (1988-03-01), Kotani et al.
patent: 4814584 (1989-03-01), Bohlender et al.

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