Seat heater and process for heating of a seat

Details Seat heater and process for heating of a seat Seat heater and process for heating of a seat

1999-07-13

2000-11-21

Walberg, Teresa

Electric heating

Heating devices

With heater-unit housing, casing, or support means

219217, 219549, H05B 334

Patent

active

061506427

ABSTRACT:
The seat heater includes at least one electric sheet-type heating element (10) made of flexible high-resistivity material to which the main electrodes (13A, 13B) are connected. In order to minimize the time during which the seat is perceived as being cold without any notable increase in overall power requirements, the seat heater is equipped with an additional feature (18A, 18B) for heating basically at least a partial area (SH) of the sheet-type heating element (10) with increased heating density, and a switch device for changing from heating the partial area (SH) with the additional feature (18A, 18B) to overall homogeneous heating of the sheet-type heating element (10) with regular heating density through the main electrodes (13A, 13) or the main electrodes (13A, 13B) and the additional feature (18A, 18B).

REFERENCES:
patent: 2698893 (1955-01-01), Ballard
patent: 3558858 (1971-01-01), Luger, Jr.
patent: 4162393 (1979-07-01), Balboni
patent: 4633061 (1986-12-01), Arikawa
patent: 4695091 (1987-09-01), Altmann et al.
patent: 4798936 (1989-01-01), Johnson, Sr.
patent: 4825048 (1989-04-01), Altmann et al.
patent: 4952776 (1990-08-01), Huguet
patent: 5138138 (1992-08-01), Theilacker et al.
patent: 5928548 (1999-07-01), Johansson

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