Electrical resistors – Plural resistance elements connected by a jumper or spacer
Patent
1976-05-04
1977-08-02
Albritton, C. L.
Electrical resistors
Plural resistance elements connected by a jumper or spacer
29611, 29621, 219548, 338274, 338299, 338325, H01C 722
Patent
active
040399958
ABSTRACT:
An electric resistance heating element, comprising at least two elongated dielectric bodies, each having a plurality of openings extending longitudinally thereon in radially displaced, parallel relation. Three metal pins fit into openings in the dielectric bodies and at least certain maintain the latter in longitudinally aligned relation. A resistance wire is wound on each of the bodies, each wire having longitudinally spaced terminals. One of the terminals of each resistance wire is electrically connected to one pin; the opposite terminal of one resistance wire is electrically connected to a second pin; and the opposite terminal of the other resistance wire is electrically connected to the third pin, whereby the one pin serves as a common electrical connection for both resistance wires, and the second and third pins serve as separate electrical connections to the respective resistance wires, whereby separate electrical circuits may be established within the heating element.
Our invention also makes it possible to provide three phase electrical connections between resistance wires separately wound on at least three dielectric cores. This is accomplished by properly orienting the cores so that the opposite terminals on each are aligned for electrical engagement with three terminal pins which pass through longitudinally aligned openings in the cores.
REFERENCES:
patent: 3217279 (1965-11-01), Boggs
patent: 3307135 (1967-02-01), Simmons
Dzaack Walter J.
Walton Frank T.
Albritton C. L.
Emerson Electric Co.
Williams Michael
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