Electric heating – Heating devices – With heating unit structure
Patent
1988-05-12
1990-09-04
Reynolds, Bruce A.
Electric heating
Heating devices
With heating unit structure
219544, 338 22SD, 29611, H05B 310
Patent
active
049546953
ABSTRACT:
Self-regulating articles, particularly heaters, containing two spaced-apart elongate electrodes which are joined together by a melt-extruded element composed of a conductive polymer. The conductive polymer is a dispersion of carbon black in a crystalline polymer, has a resistivity at room temperature of R ohm-cm, and contains L % by weight of carbon black, L being not greater than about 15, and L and R being such that
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Smith-Johannsen Robert
Walker Jack M.
Burkard Herbert G.
Lateef Marvin M.
Raychem Corporation
Reynolds Bruce A.
Richardson Timothy H. P.
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