US 12,014,871 B2
Single solenoid based double actuator device
Nirav Shah, Vadodara (IN)
Assigned to Rotex Automation Limited, Vadodara (IN)
Appl. No. 17/754,944
Filed by Rotex Automation Limited, Vadodara (IN)
PCT Filed Jun. 1, 2020, PCT No. PCT/IB2020/055159
§ 371(c)(1), (2) Date Apr. 16, 2022,
PCT Pub. No. WO2021/074703, PCT Pub. Date Apr. 22, 2021.
Claims priority of application No. 201921042383 (IN), filed on Oct. 18, 2019.
Prior Publication US 2022/0367097 A1, Nov. 17, 2022
Int. Cl. H01F 7/16 (2006.01); H01F 7/08 (2006.01)
CPC H01F 7/1615 (2013.01) [H01F 7/081 (2013.01); H01F 2007/086 (2013.01)] 18 Claims
OG exemplary drawing
 
1. A single solenoid based double actuator device, the device comprising;
a solenoid winding having an opening along an axis of the solenoid winding;
a first actuator plunger configured through the opening of the solenoid winding for linear movement along the axis of the solenoid winding between an actuated position and a dropped position and being biased by a first biasing force to remain in the dropped position;
a pair of magnetic paths comprising an upper magnetic path configured at an upper end of the solenoid winding, and a lower magnetic path configured at a lower end of the solenoid winding;
a second actuator plunger configured for linear movement along a second actuator axis between an actuated position and an dropped position and biased by a second biasing force to remain in the dropped position;
wherein the first actuator plunger, the upper magnetic path, the second actuator plunger and the lower magnetic path provide a magnetic path for a magnetic field created as a result of passing of a current through the solenoid winding; and
wherein the first biasing force, the second biasing force and the magnetic path is configured such that when the current through the solenoid winding exceeds a first current value, one of the first actuator plunger and the second actuator plunger is moved to the corresponding actuated position overcoming the corresponding biasing force, and when the current through the solenoid winding exceeds a second current value, which is higher than the first current value, other of the first actuator plunger and the second actuator plunger is also moved to the corresponding actuated position overcoming the corresponding biasing force.