Electric heating – Heating devices – With heating unit structure
Patent
1980-05-09
1982-09-07
Mayewsky, Volodymyr Y.
Electric heating
Heating devices
With heating unit structure
219528, 219541, 219544, 219553, 338 22R, 338212, 252511, 264105, H05B 334, H05B 354
Patent
active
043485847
ABSTRACT:
A flexible heating element comprises at least two flexible electrical conductors spaced apart by a PTC material, an amorphous highly conductive rubber compatible with the PTC material and adhered to each conductor being interposed between the PTC material and each conductor whereby in use current passes from one conductor to another through the PTC material via the highly conductive rubber. The conductors are spaced sufficiently close to one another to ensure that when energised the PTC material heats substantially uniformly without exhibiting a significant temperature gradient between the conductors and that any abnormal temperature increase increases the temperature of all the PTC material between the conductors in the region of the abnormal temperature increase. The arrangement is such that in use the contact resistance between the conductors and the PTC material is reduced by the amorphous highly conductive rubber interposed therebetween. The flexible heating element is produced by extruding the amorphous highly conductive rubber to cover each flexible electrical conductor and subsequently or simultaneously extruding the PTC material to cover the amorphous highly conductive rubber.
REFERENCES:
patent: 2745944 (1956-05-01), Price
patent: 3410984 (1968-11-01), Sandford et al.
patent: 3823217 (1974-07-01), Kampe
patent: 3858144 (1974-12-01), Bedard et al.
patent: 3861029 (1975-01-01), Smith-Johannsen et al.
patent: 4060710 (1977-11-01), Reuter et al.
patent: 4074222 (1978-02-01), Kiyokawa et al.
patent: 4177376 (1979-12-01), Horsma et al.
patent: 4200973 (1980-05-01), Farkas
patent: 4246468 (1981-01-01), Horsma
patent: 4307290 (1981-12-01), Bloore et al.
Gale George M.
James David I.
Meyer John V. B.
Clark George R.
Dean Clifford A.
Mayewsky Volodymyr Y.
Rose Neil M.
Sunbeam Corporation
LandOfFree
Flexible heating elements and processes for the production there does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Flexible heating elements and processes for the production there, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Flexible heating elements and processes for the production there will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1343670