Slotted autoregulating heater

Details Slotted autoregulating heater Slotted autoregulating heater

1984-03-06

1988-01-05

Albritton, C. L.

Electric heating

Heating devices

With heating unit structure

219549, 219 1077, H05B 358

Patent

active

047178140

ABSTRACT:
Designation of specific heating zones and increase in minimum resistance relative to prior heaters of the type to which the present invention pertains is achieved, together with flexibility or bendability, if desired, by slotting the outer conductor of the heater. Additional flexibility is also achieved by confining the high mu material only to those regions of the device where heating is desired, the unslotted regions.

REFERENCES:
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patent: 1975436 (1934-10-01), Sorrel et al.
patent: 1975437 (1934-10-01), Sorrel
patent: 1975438 (1934-10-01), Sorrel
patent: 3197829 (1965-08-01), Caveney et al.
patent: 3446909 (1969-05-01), Kahn
patent: 3482080 (1969-12-01), Kassen
patent: 3632976 (1972-01-01), Ando
patent: 3975617 (1976-08-01), Othmer
patent: 3975819 (1976-08-01), Ando
patent: 4091813 (1978-05-01), Shaw et al.
patent: 4110599 (1978-08-01), Offenmann
patent: 4185632 (1980-01-01), Shaw
patent: 4256945 (1981-03-01), Carter et al.
patent: 4303826 (1981-12-01), Ando

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