Power resistor

Details Power resistor Power resistor

1997-01-13

1999-06-29

Walberg, Teresa

Electrical resistors

With mounting or supporting means

H01C 101

Patent

active

059174048

ABSTRACT:
An improved power resistor includes a resistive element extending between a first electrical connection terminal and a second electrical connection terminal. The resistive element has a plurality of first insulating regions, arranged along its length extending generally parallel to each other in a first row. The resistive element further has a plurality of second insulating regions arranged generally parallel to each other in a second row. The first and second rows are further arranged generally parallel to each other so that each of the second insulating regions extends between two of the first insulating regions. The first and second insulating regions thereby define a tortuous current path from the first terminal to the second terminal. This tortuous path creates a current path between the terminals having increased resistance. The insulating regions are preferably interleaved chevrons and are preferably formed by stamping out portions of a resistive slab, made of steel or the like. The slab may be rolled or bent to form part of a resistor assembly.

REFERENCES:
patent: 1972499 (1934-09-01), Tarpley et al.
patent: 2396099 (1946-03-01), Hartwell et al.
patent: 4052588 (1977-10-01), Nakamura et al.
patent: 4630024 (1986-12-01), Allen et al.
patent: 4935687 (1990-06-01), Ton-That et al.
patent: 5281944 (1994-01-01), Kirilloff et al.
patent: 5304978 (1994-04-01), Cummins et al.
Avtron Edgewound Resistors, http://www.avtron.com/aer.htm , (216) 641-8310, Dec. 12, 1997.

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