Electric welding
Energy storage device with zero latching force
Expanded scale timer and method of operating such
Fail-safe attachment for an actuator
Fail-safe fire door release mechanism having automatic reset
Fail-safe release actuator mechanism
Failsafe limit switch with automatic reset for rolling fire door
Fluid pressure actuating device
Force-storing actuator for rotor of step transformer
Gearing for a motor driven timing relay
Handle release mechanism for poker machines
Harmonic screw actuator
High speed, dual operated electromechanical actuator
Holding mechanism
Impact sensing apparatus
Impact sensing apparatus
Impact sensing apparatus
Latchable energy storage device for operating a mechanism
Lever arrangement for transmitting limited tilting motions
Lever arrangement to transmit a driving force