Electric heating elements

Details Electric heating elements Electric heating elements

1979-01-22

1981-02-10

Mayewsky, Volodymyr Y.

Electric heating

Heating devices

With heater-unit housing, casing, or support means

174138J, 219536, 219546, 338299, H05B 306

Patent

active

042503990

ABSTRACT:
An open coil electric heater comprising a rigid support frame composed of a pair of longitudinally extending, laterally spaced members, with cross members between and secured to the longitudinal members. The cross members carry ceramic coil supports which are detachably connected to the cross members. Each coil support has an end formed with a cross slot to pass a part of a convolution of a coil and hook-like projections are formed on opposite sides of a coil support and are cooperable with the coil convolution part to detachably hold the same to the coil support. The heating coil is secured to the coil supports in expeditious manner and without the use of tools by twisting the coil so that said convolution part is aligned sufficiently with said cross slot to enable said part to be seated within said slot. The coil is then permitted to spring back so that the convolution fits against opposite side faces of said coil support and held in position by said hook-like projections.

REFERENCES:
patent: 1419309 (1922-06-01), Russell
patent: 1695801 (1928-12-01), Dibble
patent: 3691348 (1972-09-01), Kunz
patent: 3846619 (1974-11-01), Wightman
patent: 3890487 (1975-06-01), Wightman
patent: 3992609 (1976-11-01), Alexander

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