Electrical resistors – Mechanically variable – Movable contact electrically adjustable over length of...
Patent
1979-07-19
1982-02-23
Albritton, C. L.
Electrical resistors
Mechanically variable
Movable contact electrically adjustable over length of...
337 3, 338172, 338200, H01C 1030, H01C 1036
Patent
active
043171036
ABSTRACT:
A variable resistor having a short-circuiting member which is displaced in response to the generation of abnormally high heat in the resistance member of the variable resistor with a piece thereof in contact to short-circuit the input and output terminals of the resistance member. This results in a bypass for large current, so that a protection circuit in an output amplifier is operated to suspend the generation of heat.
REFERENCES:
patent: 3147354 (1964-09-01), Hewitt, Jr.
patent: 3167643 (1965-01-01), Turner
patent: 4200857 (1980-04-01), Sato et al.
Kawasaki Atsushi
Munakata Yukio
Albritton C. L.
Pioneer Electronic Corporation
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