Electricity: magnetically operated switches – magnets – and electr – Electromagnetically actuated switches – With motor
Patent
1975-06-27
1977-01-04
Broome, Harold
Electricity: magnetically operated switches, magnets, and electr
Electromagnetically actuated switches
With motor
335190, H01H 328
Patent
active
040017400
ABSTRACT:
A control switch has a switch shaft mounted for reciprocal rotational movement about its axis. A cam profile is fixed to the shaft and has first and second opposed cam surfaces. A driver is mounted to selectively engage the first or second cam surface to drive the switch shaft into a first clockwise position or a second counterclockwise position by remote actuation. The driver is connected to a rotary solenoid which allows uni-directional drive translated into two directional drive by the driver.
A control circuit provides rapid actuation and slow release of the rotary solenoid along with operation of a linear solenoid when desired to select between first and second directional movement of the cam profile. The control circuit permits charging a capacitor while rapidly actuating a relay to actuate the rotary solenoid. A resistor provides for slow discharge of the capacitor to maintain the relay actuated over a slow release period after disruption of the charging circuit. A linear solenoid is interconnected with the charging circuit to enable selective actuation of the linear solenoid when desired to switch directional movement of the cam profile.
REFERENCES:
patent: 3023285 (1962-02-01), Favre
patent: 3200209 (1965-08-01), Fitzgerald
patent: 3250877 (1966-05-01), Taylor
patent: 3501977 (1970-03-01), Wahli et al.
patent: 3649793 (1972-03-01), MacLean
Broome Harold
Electro Switch Corporation
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