Electric heating – Heating devices – With heating unit structure
Patent
1986-04-18
1988-03-22
Shaw, Clifford C.
Electric heating
Heating devices
With heating unit structure
219213, 219345, 219528, 219529, 219541, 219504, 219505, 219549, 252511, 252540, 338 22R, 338212, 338214, H05B 310, H01C 710
Patent
active
047330570
ABSTRACT:
A wall, floor or ceiling heater comprises a plurality of self regulating, preferably PTC conductive polymer, heater elements each of which is connected to two or more connection elements. The elements are held by a support. In a preferred embodiment the heater elements are positioned parallel to each other, and perpendicular to the connection elements. The support is preferably made from a rigid material which is hinged to allow the heater to be folded or rolled for easy transport.
REFERENCES:
patent: 2762896 (1956-09-01), Pendleton
patent: 3317657 (1960-12-01), Eisler
patent: 3535494 (1970-10-01), Armbruster
patent: 3697728 (1972-10-01), Stirzenbecher
patent: 4330703 (1982-05-01), Horsma et al.
patent: 4425497 (1984-01-01), Leary et al.
Condensed Chemical Dictionary, G. Hawley, 9th Ed., 77, p. 386.
Sandberg Chester L.
Stanzel Erwin K. E.
Burkard Herbert
Preston Gerald E.
Raychem Corporation
Richardson Timothy H. P.
Shaw Clifford C.
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