Device utilizing a PTC resistor for electrically heating flowing

Electric resistance heating devices – Heating devices – Continuous flow type fluid heater

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123549, 219206, 219505, 219530, 219540, 219541, 219551, 338 22R, 392379, 392396, 392492, 392502, H05B 102, H05B 312, H05B 382, F24H 110

Patent

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052789403

ABSTRACT:
A device for heating flowing liquid or gaseous media has a heating element including a PTC resistor arranged between a pair of perforated metallic bodies serving as power supply terminals for the resistor. The heating element is positioned inside a tubular housing defining a flow path for the medium to be heated and made of two mating housing parts, with the heating element extending across the flow path for flow of the medium through the perforations of the metallic bodies to transfer heat to the medium. A bracket on each metallic body fastens the heating element to the housing and is electrically connected to a contact on one end of a power supply cable molded as an integral part of one of the housing parts and terminating at its other end in an electrical plug outlet on the housing part connectable to a battery or electrical network.

REFERENCES:
patent: 1095555 (1914-05-01), Crone
patent: 1220508 (1917-03-01), Grimshaw et al.
patent: 1359983 (1920-11-01), Grant
patent: 1402585 (1922-01-01), Epstein et al.
patent: 1463133 (1923-07-01), Grant
patent: 1484616 (1924-02-01), Aske
patent: 1707170 (1929-03-01), Miller
patent: 3828161 (1974-08-01), Yamaguchi
patent: 4899032 (1990-02-01), Schwarl et al.

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