Abstract: A solenoid assembly includes a switching regulator and a solenoid electrically connected to an output signal connection of the switching regulator, the solenoid electrically actuable between an extended position and a pull-in position. The assembly includes an output level switch electrically connected to an input switching connection and the output signal connection of the switching regulator, and a timer connected to an output of the switching regulator and an input of the output level switch. The timer generates a signal at the output of the output level switch, thereby causing the output level switch to generate a hold signal at the input switching connection of the switching regulator after sensing a signal at the output signal connection. Upon receiving the hold signal at the input switching connection, the switching regulator causes an output signal on the output voltage connection to switch from a switching level to a hold level.

Abstract: A combined hydraulic and pneumatic actuation system including a cylinder, a first piston, and a second piston. The cylinder may include a first cylinder portion configured to hold or retain a first fluid and a second cylinder portion configured to hold or retain a second fluid. The first piston can be operatively coupled or in fluid communication with the first fluid, and the second piston can be operatively coupled or in fluid communication with the second fluid. The second piston may be disposed between the first cylinder portion and the second cylinder portion. In an embodiment, the first piston can move or translate axially within the cylinder independently of the second piston, and an increase in pressure in the second cylinder portion can actuate the first piston and the second piston. Further, in embodiments, the first fluid can comprise a liquid, and the second fluid can comprise a gas.

Abstract: A solenoid assembly includes a switching regulator and a solenoid electrically connected to an output signal connection of the switching regulator, the solenoid electrically actuable between an extended position and a pull-in position. The assembly includes an output level switch electrically connected to an input switching connection and the output signal connection of the switching regulator, and a timer connected to an output of the switching regulator and an input of the output level switch. The timer generates a signal at the output of the output level switch, thereby causing the output level switch to generate a hold signal at the input switching connection of the switching regulator after sensing a signal at the output signal connection. Upon receiving the hold signal at the input switching connection, the switching regulator causes an output signal on the output voltage connection to switch from a switching level to a hold level.