Patents Assigned to Electro Switch Corporation
  • Patent number: 4001740
    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.
    Type: Grant
    Filed: June 27, 1975
    Date of Patent: January 4, 1977
    Assignee: Electro Switch Corporation
    Inventor: Alexander MacLean