Electrical heater rack assembly with stand-off insulators

Details Electrical heater rack assembly with stand-off insulators Electrical heater rack assembly with stand-off insulators

1983-12-21

1984-11-06

Mayewsky, Volodymyr Y.

Electric heating

Heating devices

With heater-unit housing, casing, or support means

D13 18, 174175, 219536, 219542, 219550, 338299, H05B 306

Patent

active

044814119

ABSTRACT:
A heater rack assembly, of the type which supports an electric heating coil in a pattern of parallel rows in a plane, utilizes double-ended stand-off insulators which are formed wafer-like in the plane. The insulators have, at each end, pairs of hook portions facing each other to provide a throat, which opens into a wire-accommodating slot behind the hook tips, the slot converging toward the center at an angle of 150.degree. or less. Adjacent turns of the coil are to be accommodated within the slot. Its convergence retains within the slot adjacent coil turns which might otherwise escape, requiring for such escape what is in effect a reverse in-plane twisting displacement.

REFERENCES:
patent: D251260 (1981-10-01), Seeley
patent: D262285 (1981-12-01), Janning
patent: 2856500 (1958-10-01), Hartman
patent: 2927956 (1960-03-01), Reisch
patent: 3952409 (1976-04-01), Allison et al.
patent: 3992609 (1976-11-01), Alexander
patent: 4250399 (1981-02-01), King
patent: 4268742 (1981-05-01), Cottrell et al.
patent: 4363959 (1982-12-01), Cottrell et al.

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