Water bed heater

Details Water bed heater Water bed heater

1990-06-01

1992-01-14

Walberg, Teresa J.

Electric heating

Heating devices

Combined with diverse-type art device

219528, 219504, 219549, H05B 336

Patent

active

050813390

ABSTRACT:
A heater for a water bed including an elongated PTC cable having conductors by a carbon loaded polymer material with the cable being tortuously disposed with closely spaced parallel lengths supported in a coplanar sandwiched relationship by adhesively coated sheets of polyester and aluminum, the sheets and cable being sealed in a polyvinyl chloride envelope.

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patent: 3790753 (1974-02-01), Miller
patent: 3808403 (1974-04-01), Kanaya
patent: 4220848 (1980-09-01), McMullan
patent: 4242573 (1980-12-01), Batliwalla
patent: 4314230 (1982-02-01), Cardinal et al.
patent: 4314231 (1982-02-01), Walty
patent: 4425497 (1984-01-01), Leary et al.
patent: 4547659 (1985-10-01), Leary et al.
patent: 4652726 (1987-03-01), Femino
patent: 4719335 (1988-01-01), Batliwalla et al.
patent: 4761541 (1988-08-01), Batliwalla et al.
patent: 4774397 (1988-09-01), Grise
patent: 4798936 (1989-01-01), Johnson
patent: 4967057 (1990-10-01), Bayless

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