Annular resistor

Details Annular resistor Annular resistor

1977-01-21

1977-09-27

Albritton, C. L.

Electrical resistors

With heat dissipating projections

303 20, 338280, 338316, 338319, H01C 108

Patent

active

040514528

ABSTRACT:
An annular resistor, suitable for use in a diesel electric locomotive dynamic braking system and the like, having a supporting frame including spaced inner and outer annular frame portions and a continuous resistance ribbon having a plurality of bent-back radial extensions therebetween and in electrical isolation therefrom. U-shaped folds of the ribbon are mounted on pin supports allowing contraction and expansion of the ribbon. The pin supports are mounted to insulator blocks which may be selectively positioned on the frame, when two or more are stacked, to vary ribbon alignment and hence convective cooling. The resistor is comprised of severally replaceable identical component quadrants.

REFERENCES:
patent: 1388822 (1921-08-01), Roys
patent: 3074042 (1963-01-01), McNeir et al.
patent: 3237142 (1966-02-01), Nuss
patent: 3697923 (1972-10-01), Griffes
patent: 3858149 (1974-12-01), Kirilloff

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