Electrical resistors – With switch
Patent
1975-09-11
1977-02-01
Albritton, C. L.
Electrical resistors
With switch
29613, 219517, 317 9R, 317 9AC, 337296, 338273, 338275, H01C 1300
Patent
active
040064433
ABSTRACT:
A composition resistor incorporates a thermal fuse inert preferably positioned at its center. The insert includes a fuse link which under normal conditions provides electrical continuity between lead wires extending from each end of the resistor. If a current overload occurs, the heat generated by the resistance material raises the temperature at the center of the resistor to the melting point of the fuse link and the fuse link opens circuit before the organic constituents of the resistor begin to decompose or ignite.
REFERENCES:
patent: 3238490 (1966-03-01), Thomson
patent: 3887893 (1975-06-01), Brandt et al.
Kouchich Allan V.
Marshall Robert
Albritton C. L.
Allen-Bradley Company
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