Electric heating – Heating devices – With heating unit structure
Patent
1990-10-01
1993-04-27
Reynolds, Bruce A.
Electric heating
Heating devices
With heating unit structure
219528, 219212, 219505, H05B 102, H05B 334
Patent
active
052064859
ABSTRACT:
A coaxial-type heater cable is described for significantly reducing both electromagnetic and electrostatic field while maintaining a flexible heater cable structure by enclosing coaxial arranged inner and outer conductors with a conductive polymer layer that is in electrical contract with the outer conductor. The outer conductor is helically wrapped around the inner conductor with the number of turns per unit length selected to significantly reduce the electromagnetic field emanating from the heater cable while the conductive polymer layer significantly attenuates any electrostatic field that would otherwise fringe through spaces between successive turns of the outer conductor. The heater cable can be of the self-regulating type using a PTC material in electrical contact with and between the inner and outer conductors.
REFERENCES:
patent: 2820085 (1958-01-01), Crowley
patent: 3049584 (1962-08-01), DiAscoli
patent: 3155631 (1964-11-01), Zapp, Jr.
patent: 3474189 (1969-10-01), Plate et al.
patent: 3836482 (1974-09-01), Ling et al.
patent: 4008367 (1977-02-01), Sunderhauf
patent: 4143238 (1979-03-01), Sheth
patent: 4200973 (1980-05-01), Farkas
patent: 4314145 (1982-02-01), Horsma
patent: 4330493 (1982-05-01), Miyamoto et al.
patent: 4334351 (1982-06-01), Sopory
patent: 4436986 (1984-03-01), Carlson
patent: 4503322 (1985-03-01), Kishimoto et al.
patent: 4575620 (1986-03-01), Ishii et al.
patent: 4607154 (1986-08-01), Mills
patent: 4654511 (1987-03-01), Horsma
patent: 4661690 (1987-04-01), Yamamoto et al.
patent: 4689601 (1987-08-01), Coffey et al.
patent: 4757297 (1988-07-01), Frawley
patent: 4910391 (1990-03-01), Rowe
Union Carbide Polyethylene DHDA-7704 Black 55 Spec Sheet.
Rowe, Jr. William M.
Srubas Robert C.
Reynolds Bruce A.
Specialty Cable Corp.
Switzer Michael D.
LandOfFree
Low electromagnetic and electrostatic field radiating heater cab does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Low electromagnetic and electrostatic field radiating heater cab, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Low electromagnetic and electrostatic field radiating heater cab will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2329297