Electric heating – Heating devices – With heater-unit housing – casing – or support means
Patent
1989-03-15
1990-06-26
Bartis, Anthony
Electric heating
Heating devices
With heater-unit housing, casing, or support means
219505, 219535, 219537, 219539, 219540, 219542, 219544, 219553, 338 22R, 338328, 338329, H05B 102, H05B 314, H01C 702
Patent
active
049374354
ABSTRACT:
A flexible electric heating pad has a plurality of positive temperature coefficient (PTC) ceramic thermistor chip heating elements arranged in a two dimensional array between first and second flexible planar sheets of electrically conductive material, preferably woven of copper wire or other electrically conductive fibers. The PTC thermistor chips are disposed in spaced openings in a flexible dielectric separator disposed between the sheets and each chip has opposed planar surfaces soldered, welded or brazed to the sheets to establish electrical and thermal contact therewith. An outer flexible dielectric material covers the external surfaces of the sheets to prevent grounding or shock. A metallic enclosure, for example of stainless steel, can be formed over the outer dielectric material to add corrosion or abrasion resistance to the flexible heating pad.
REFERENCES:
patent: 2278072 (1942-03-01), Gould et al.
patent: 3243753 (1966-03-01), Kohler
patent: 3351882 (1967-11-01), Kohler et al.
patent: 3413442 (1968-11-01), Buiting et al.
patent: 4017715 (1977-04-01), Whitney et al.
patent: 4037082 (1977-07-01), Tamada et al.
patent: 4045763 (1977-08-01), Miyamoto et al.
patent: 4072848 (1978-02-01), Johnson
patent: 4091267 (1978-05-01), Grant
patent: 4104509 (1978-08-01), Van Bokestal et al.
patent: 4117312 (1978-09-01), Johnson et al.
patent: 4121088 (1978-10-01), Doremus et al.
patent: 4242567 (1980-12-01), Carter
patent: 4304044 (1981-12-01), Lee
patent: 4314231 (1982-02-01), Walty
patent: 4317027 (1982-02-01), Middleman et al.
patent: 4327282 (1982-04-01), Nauerth
patent: 4330703 (1982-05-01), Horsma et al.
patent: 4341949 (1982-07-01), Steiner et al.
patent: 4369423 (1983-07-01), Holtzberg
patent: 4392051 (1983-07-01), Goss et al.
patent: 4401885 (1983-08-01), Ishii et al.
patent: 4426573 (1984-01-01), Fudickar et al.
patent: 4445026 (1984-04-01), Walker
patent: 4485297 (1984-11-01), Grise et al.
patent: 4626666 (1986-12-01), Maeda et al.
patent: 4631391 (1986-12-01), Tiepke
Goss David C.
Yagnik Chandrakant M.
Bartis Anthony
Thermon Manufacturing Company
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