Matches 1 - 50 out of 155 1 2 3 4 >


Match Document Document Title
7774984 Concentric cross mechanism for transiting torsion  
A concentric cross mechanism for transiting torsion includes a main body unit of a concentric cross mechanism, a main body unit of the torsion-driven mechanism, a main body unit of the...
7066301 Linear actuator having manual override and locking mechanism  
A manual override mechanism is presented for a motor-driven linear actuator that allows the output rack and pinion of the actuator to be manually positioned. Once positioned, the output may be...
6748816 Self-backdriving jackscrew apparatus  
A self-backdriving jackscrew apparatus including a biasing member connected to a screw portion of a jackscrew that exerts backdriving force on the screw to turn the screw in a rotational direction...
6742626 Elastic motor having time-averaged constant torque output  
An elastic motor having a constant torque characteristic utilizes a reel with elastic divided into unit lengths that are stretched to their maximum tension. Each unit length of the elastic is...
6725976 Manual override and locking mechanism and actuator including same  
A manual override mechanism is presented for a motor driven rotary actuator that allows the output of the actuator to be manually positioned. Once positioned, the output of the actuator may be...
6462444 Power apparatus with low energy consumption  
A power apparatus in which a battery is connected to a dynamo to drive it as a motor and deliver energy to a spiral spring to wind-up the spring. When the spring has been wound to a particular...
6431317 Rotary electric actuator with a mechanical spring return back-up  
A tri-modal—energy storage mode, fail-safe mode, and operating mode—fail-safe actuator with low overall power consumption and specifically low fail-safe power consumption due to energy storage...
6308587 Actuator for vehicle-door locking mechanism  
An actuator for vehicle-door locking mechanism, includes a driving motor, a first deceleration mechanism for decelerating a rotation of the driving motor, a lead screw to which the rotation of the...
6155533 Default mechanism for electronic throttle control system  
An electronic throttle control system having a housing with a motor, throttle valve, gear mechanism, and fail-safe mechanism. A spring member attached to a gear member and default lever, and which...
6095488 Electronic throttle control with adjustable default mechanism  
An electronic throttle control system having a housing with a motor, throttle valve, gear mechanism, and fail-safe mechanism. A spring member attached to a gear member and default lever, and which...
6032760 Bi-directional spring holder assembly for an actuator  
An actuator for power door locks having a bi-directional spring holder assembly. The assembly has a substantially cylindrical housing having a projection formed on a rim of its cylindrical wall....
6006475 Spring loaded swinging door system  
An spring apparatus for use with an automatic swinging door closure system wherein the system includes a motor linked to a door via a gear train and a drive arm, the train including a plurality of...
6000501 Torsion winder  
A method and apparatus for adding torsion to a roller tube assembly of a retractable awning which includes a roller tube rotatable about a rod and a torsion spring between the roller tube and the...
5988319 Transmission for a return-to-normal actuator  
An apparatus for effecting actuation of a device. The device has a home position and a set position and the apparatus returns the device to the home position upon loss of power to the apparatus....
5984225 Compensating tensioning mechanism for film valve  
A roller drive mechanism for an automotive HVAC film valve belt includes a single motor type drive that automatically compensates for continually differing belt wind up and wind off rates, while...
5950765 Two stage motorized actuator  
A two stage motorized servo-actuator having a worm driven high reduction gear train providing a rotary output. The motor shaft has a worm and co-axially therewith, a beveled pinion. The motor worm...
5865272 Differential drive linear actuator  
A linear actuator having an output shaft having a pair of driven wheels mounted thereon. One of the driven wheels is rotatably mounted in a fixed plane and has a drive nut for an associated thread...
5834997 Coupling member for securing a spring to a rotatable motor shaft  
A coupling member for securing a spring to a rotatable motor shaft so that the spring rotates with the motor shaft. The coupler has a cylindrical hollow middle which fits snugly onto the motor...
5727653 Drive device for an actuator  
A drive device for controlling the position of an actuator includes an electric motor for actuating the drive device. The motor is coupled to a gear mechanism and adapted to control the position...
5722510 Device for controlling the retraction of a mobile structure  
A unit for controlling the retraction of a mobile structure such as a mirror used for calibrating an optical system on board a spacecraft, which includes a spring which permanently forces the...
5657664 Transmission for an actuating drive having a spring return feature  
A transmission for an actuating drive having a spring return feature includes a drive pinion (2) associated with the actuating drive; an intermediate pinion (5) meshing with the drive pinion (2);...
5653142 Intermittently rotary gearing  
To provide an intermittently rotary gearing that converts rotary motion of a motor to intermittent rotary motion by utilizing a mechanical structure, an input shaft interlocking with a drive shaft...
5584383 Operating mechanism for circuit breaker  
An operating mechanism for a circuit breaker including a frame, a spring shaft mounted on the frame and rotatable around a central axis thereof, a spring case having a notch in an outer periphery...
5504289 Circuit switching mechanism and charging system therefor  
A circuit switching mechanism for use in a high voltage circuit breaker is disclosed. The disclosed mechanism comprises a charging system (12); trip latch mechanism (14); an opening spring (16); a...
5472065 Linear motion drive  
A linear drive, particularly useful for locking or unlocking a door lock mechanism or the like permits manual operation by providing an output shaft that can move freely regardless whether the...
5386885 Electro-mechanical pivot wing drive for pivoting wings of doors or the like  
The electro-mechanical drive includes an electric motor, a transmission and a restoring spring. To improve the capacity to close the door, particularly in the event of a power failure, a large...
5358073 Method and apparatus for tensioning an accumulator spring of a drive of a high-voltage or medium-voltage power circuit breaker  
A method and apparatus for tensioning the accumulator spring of a high-voltage or medium-voltage power circuit breaker drive, in which a drilling machine or a power tool, such as a screwdriver,...
5310021 Motor-driven, spring-returned rotary actuator  
An electric motor acts through a gear train to rotate an output shaft in one direction while a torsion spring rotates the shaft in the opposite direction when the motor is de-energized. When the...
5193647 Easy opening door control device  
A device for controlling swinging doors utilizing an externally powered motor to compress a spring during door opening to store energy in the spring. The motor is not used to open the door, but...
5187993 Actuator for remote control  
A power operated linear actuator for remote operation of a machine. A cylinder frame containing a motor and a step-down gear train, a push-pull rod connected with a threaded nut movable along a...
5181771 Triple spring torque motor  
A display unit that can retract heavy monitors into a stowing cavity when the retracting actuator of the unit becomes inoperative. The display unit has a spring motor with at least two nested...
5182498 Spring return rotary actuator  
A rotary actuator uses a two degree of freedom gear train with three torque members to provide torque to the output element from a first torque member. The torque is supplied to a second torque...
5160115 Device for operating a damper in an air conditioning system for a vehicle  
The apparatus for controlling a damper in an air conditioning system for a vehicle. The damper is used for selectively opening air outlets, and is constructed as a film damper having one end wound...
5150770 Recharge device, particularly for drive mechanisms for extending and withdrawing operative members of a space vehicle  
In a spring operated mechanism, the recharge device (1) is adapted to wind the spring (4) during idle times when the drive mechanism (4,16) is not operating. The recharge device has a lever member...
5137257 Feedback motor-operated valve  
A feedback, motor-operated valve, including a valve casing having an inlet, an outlet and a valve seat operably positioned therebetween, and further including a valve element movably mounted in...
5113056 Stored-spring-energy actuator mechanism for a high-voltage circuit breaker  
The stored-spring-energy actuator mechanism (210) for the high-voltage circuit breaker (218) has a spiral spring (216) which can be loaded by means of the loading device (212). The high-voltage...
5107715 Circuit breaker drive mechanism  
The invention relates to controlling a circuit breaker by means of a drive mechanism circuit for operating a circuit breaker by rotating a main operating shaft (4). The drive mechanism comprises a...
5101675 Force-storing actuator for rotor of step transformer  
A force-storing actuator for connection to a rotor of a step transformer has a pair of similar levers rotatable about a common axis and having diametrally opposite outer ends, an input element and...
4949814 Driving mechanism, and vehicle therewith  
A driving mechanism includes a rotatable support and a stretchable element which is being wound on the support by rotating the latter in one direction, and when the rotatable support is released...
4905532 Power transmitting apparatus  
A power transmitting apparatus is comprised of an electrically operated motor having a shaft which is rotatable in one or the other direction, a worm-gear provided at an outer periphery thereof...
4901821 Motor operator for a stored energy operating mechanism  
A motor operated mechanism for transferring energy to the energy storing mechanism of a circuit breaker of the type which utilizes the energy to close the primary contacts of the circuit breaker....
4881460 Postage meter and control arrangement for same  
A postage meter having a rotable print drum also has a control arrangement ensuring that power is fed to the motor which drives the print drum via at least two parallel paths. One of these paths...
4831996 Target projecting apparatus  
A target projecting apparatus having a main support housing assembly, and a target conveyance assembly mounted to the main support housing assembly. Also mounted or connected to the main support...
4800308 Motorized control unit with torsional elastomeric bias  
A motorized control for driving a rotatable shaft-actuated device, such as a valve, comprising a base plate, a top housing, a work plate intermediate the base plate and the top housing and a...
4787480 Tensioning device for the energy store of an electrical switch  
Tensioning device for the energy store of an electrical switch, the energy store including a drive spring and the switch having a turn-on lock provided with a blocking latch of the turn-on lock of...
4760895 Electric actuators  
A spring applied force actuator having an output member movable from a first position to a second output position, a first power spring by which can be generated on the output member an output...
4750375 Drive device for a circuit breaker with a ratchet wheel  
A drive device for a low-voltage circuit breaker comprises a ratchet wheel with teeth which are engaged by a transporting ratchet by a periodic back-and-forth motion of a cage having the...
4742200 Actuating device for a low-voltage circuit breaker with a ratchet wheel  
For cocking an energy accumulator, an actuating device comprises a ratchet wheel with teeth as well as a reciprocating transport ratchet. For maintaining the cocked position of the energy...
4715476 Reset mechanism responsive to loss of torque  
Reset mechanism comprises a base, a spring arm rotatable about an axis through the base, and an extension spring fixed to the base at one end and the spring arm at the other end. The spring passes...
4705144 Spring operating mechanism for a circuit interrupter  
A spring operating mechanism for a circuit interrupter comprises means for converting the rotation of an electric motor into a rocking motion of a pawl, a ratchet wheel having teeth for being...

Matches 1 - 50 out of 155 1 2 3 4 >