Electric heating device with heating zones

Details Electric heating device with heating zones Electric heating device with heating zones

2006-08-29

2006-08-29

Evans, Robin (Department: 3742)

Electric heating

Heating devices

Combined with diverse-type art device

C219S530000, C219S540000

Reexamination Certificate

active

07098426

ABSTRACT:
An electric heating device is adapted to be used in particular as an auxiliary electric heating for motor vehicles. The heating device comprises a plurality of PTC heating elements arranged in a plane of said heating device. The PTC heating elements are in electric contact with contact sheets for supplying current thereto and in thermal contact with radiator elements for transferring the heat produced to an air current to be heated. According to the present invention, the PTC heating elements arranged in this plane are adapted to be controlled separately in at least two groups.

REFERENCES:
patent: 2002/0011484 (2002-01-01), Beetz et al.
patent: 199 33 013 (2001-02-01), None
patent: 1 157 867 (2001-11-01), None
patent: 2 742 384 (1997-06-01), None

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