Electrical PTC heating device

Details Electrical PTC heating device Electrical PTC heating device

Filed on

1997-11-24

Date issued

1999-03-30

Examiner

Paschall, Mark H.

Patent Class

Electric heating

SubClass

Heating devices

SubSubClass

With power supply and voltage or current regulation or...

Other Related Categories

219504, 219530, 219532, 392360, 392365, H05B 102

Type

Patent

Status

active

Patent number

058892605

Description

ABSTRACT:
An electrical heating device employing positive temperature coefficient (PTC) thermistors as heating elements, which provides direct contact between the thermistor heating elements and the radiation units on both sides with no intervening members and which also provides the electrical current to the heating elements via the radiation units.

REFERENCES:
patent: 5198640 (1993-03-01), Yang
patent: 5377298 (1994-12-01), Yang
patent: 5710459 (1998-01-01), Teng et al.

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Also associated with

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