PTC heater device

Electric heating – Heating devices – Combined with container – enclosure – or support for material...

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Details

219205, 219316, 219335, 219338, 219505, 219530, 219534, 219540, 219544, 338 22R, H05B 102, H05B 300, H05B 382, H01C 702

Patent

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048229806

ABSTRACT:
A heating device adapted to be disposed in an opening in the side wall of a compressor that is used with an air conditioner or refrigerator so that fluids in the casing of the compressor can be vaporized. The heating device includes a PTC thermistor disposed in a housing and a generally cylindrical receptacle disposed about the housing. The housing includes at least one outwardly extending, resilient, heat dissipating, arcuate fin overlying the outer surface of the housing in spaced relaton thereto. The fin is biased outwardly to engage the inner walls of a receptacle. The receptacle is welded into the opening in the sidewall of the casing of the compressor. The fins form a snug fit with the housing and provide a good heat transfer contact with the receptacle. Lead-in wires extend from the PTC thermistor to the outside of the housing so that the PTC thermistor can be connected to a power supply.

REFERENCES:
patent: 3564199 (1971-02-01), Blaha
patent: 3673382 (1972-06-01), Gaffney et al.
patent: 3996447 (1976-12-01), Bouffard et al.
patent: 4104509 (1978-08-01), Van Bokestal et al.
patent: 4147927 (1979-04-01), Pirotte
patent: 4352008 (1982-09-01), Hofer et al.
patent: 4680444 (1987-07-01), Skuvdal et al.
patent: 4689878 (1987-09-01), Beauregard et al.

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