Electricity: electrical systems and devices – Control circuits for electromagnetic devices – For relays or solenoids
Patent
1986-03-14
1987-07-07
Hix, L. T.
Electricity: electrical systems and devices
Control circuits for electromagnetic devices
For relays or solenoids
331 65, H01H 4712
Patent
active
046791175
ABSTRACT:
A wire detector for semi-automatic wire stripper which responds to capacitance changes caused by sensing a capacitance object such as an exposed wire end and includes signal processing through an oscillator and amplifier circuit providing timer control for activating a relay driver circuit for an adjustable duration time period. The wire touch sensor circuit relay driver is then coupled through a mercury wetted relay which provides electrical isolation from external (switched) voltages to an air solenoid which when actuated allows the pneumatic mechanism of the wire stripper to cycle through its functions of wire stripping.
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Butcher William T.
Furlong James J.
Howe Dwayne E.
Snell Gerald T.
Yara Calvin M.
Donahue B. A.
Gardner Conrad O.
Gray David M.
Hix L. T,.
The Boeing Company
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