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| Number | Title | Issue Date |
| 7351179 | Stepper motor driven proportional actuator A low energy stepper motor driven actuator that eliminates the need for a position sensor is provided. The stepper motor rotates a cam in a control piston valve. The cam rotation increases the gap between the cam and nozzle on one side of the cam and decreases the g... | 04/01/2008 |
| 7342474 | Circuit breaker configured to be remotely operated A circuit breaker configured to be remotely operated is disclosed. The circuit breaker includes a set of main contacts configured to connect between an electrical source and an electrical load, an operating mechanism in operable communication to open and close the m... | 03/11/2008 |
| 7321208 | Driving apparatus A driving apparatus for driving a functional body mounted on a vehicle comprises a power supply, an electric motor, and a driving means. The electric motor is connected to the power supply and is started by a power feed from the power supply. The driving means has a... | 01/22/2008 |
| 7234201 | Door closer power adjusting device A door closer power adjusting device for a door closer having a spindle driven by a compressed spring with a movable plate for adjusting spring compression, or with a screw for adjusting spring compression, between a high and low level of compression. A powered unit... | 06/26/2007 |
| 7222822 | Linear actuation device for spacecraft and solar generator unfolding systems A linear operating device is provided that includes a way of converting a rotational motion into a translational motion, realized in the form of a nut, a rotating drive unit and a spindle acting in conjunction with the nut; and the nut is connected to the spindle wi... | 05/29/2007 |
| 7159482 | Electric actuator An electric actuator comprises a gear mechanism which transmits the rotary driving force of a rotary driving source, and a ball spline mechanism which includes a ball spline shaft provided movably back and forth from a connecting block to the outside and which conve... | 01/09/2007 |
| 7134672 | Failsafe actuator A failsafe actuator is provided for returning an actuator driven element to a failsafe position in case of a failure condition. The actuator includes a drive assembly for driving a plunger from a first plunger position to a second plunger position. The actuator addi... | 11/14/2006 |
| 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 locked by a locking mechanism to prevent this output from translating to ... | 06/27/2006 |
| 7066041 | Linear actuator A linear actuator useful for adjusting furniture includes a housing (1) with a reversible electric-motor (2) which, via a transmission (11, 13), drives a spindle (4) with a force absorbing bearing (16). On the spindle there is a nu... | 06/27/2006 |
| 7061349 | Circuit breaker configured to be remotely operated A circuit breaker configured to be remotely operated is disclosed. The circuit breaker includes a set of main contacts configured to connect between an electrical source and an electrical load, an operating mechanism in operable communication to open and close the m... | 06/13/2006 |
| 7047834 | Actuator An actuator includes a quick release inserted in a transmission between an activating element (6) and a reversible electric motor (2) for releasing the activating element from the electric motor and the part of the transmission extending from the motor... | 05/23/2006 |
| 7032279 | Apparatus and methods for repairing compressor airfoils in situ The apparatus includes a track mounted in the inlet of a compressor. A manipulator is mounted for movement about the track and carries three modules, the last of which mounts a tool head for movement in a Cartesian coordinate system and about the track. A measuring ... | 04/25/2006 |
| 7028705 | High torque failsafe valve operator A fluid valve operator for moving a moveable valve element such as a disc (14) that is pressed forcefully against a surface of a valve frame (12). The valve operator includes first and second electric gear reduction motors (22, 24) that each has... | 04/18/2006 |
| 7020999 | Reversible hanging plant support A system for supporting a household plant includes an electric circuit for selectively moving the plant having a battery and a direct current motor for moving the plant. The motor control is by a first controllable switching device to connect the battery to the moto... | 04/04/2006 |
| 6953084 | Actuator for well-head valve or other similar applications and system incorporating same An electrical actuator is particularly suited for driving a wellhead valve for regulating the flow of natural gas from a production well. The electrical actuator can be driven using the existing local power supply in wellhead valve systems, typically a solar panel a... | 10/11/2005 |
| 6948544 | Blind lift rod control lock A blind lift rod control lock includes a housing having an axle hole, a rotating member revolvably mounted in the axle hole of the housing, the rotating member having a non-circular through hole, which receives a lift rod for enabling the rotating member to be synch... | 09/27/2005 |
| 6942227 | Failsafe actuator A failsafe actuator for returning an actuator driven element to a failsafe position in case of a failure condition is provided. The failsafe actuator may include mechanical or electrical means to provide a failsafe function. Such a failsafe actuator may be used in a... | 09/13/2005 |
| 6913123 | Method and device for service braking Service braking of a vehicle can be carried out by way of a service brake actuator having an electric motor for applying its service brake. Energy from a loaded spring in a spring brake actuator connected to the service brake actuator can be released at will for sup... | 07/05/2005 |
| 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 that returns a nut portion of the jackscrew to a home position on the... | 06/15/2004 |
| 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 allowed to relax to its normal state while generating work in a process th... | 06/01/2004 |
| 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 locked by a locking mechanism to prevent this output from rotating to its... | 04/27/2004 |
| 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 degree a sensor disconnects the motor from the spring which no... | 10/08/2002 |
| 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 pawling mechanisms. Stored energy is discharged at a control... | 08/13/2002 |
| 6389753 | Window lift mechanism A window lift mechanism for raising and lowering a window in a vehicle door includes a support bracket mounted to the window and a motor supported on the support bracket. A vertical rack is mounted to the door and is positioned immediately adjacent the wi... | 05/21/2002 |
| 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 driving motor is transmitted through the first deceleratio... | 10/30/2001 |
| 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 is biased when the throttle valve is in its fully open and... | 12/05/2000 |
| 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 is biased when the throttle valve is in its fully open and... | 08/01/2000 |
| 6073395 | Window lift mechanism A window lift mechanism for raising and lowering a window in a vehicle door includes a support bracket mounted to the window and a motor supported on the support bracket. A vertical rack is mounted to the door and is positioned immediately adjacent the wi... | 06/13/2000 |
| 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. The projection is provided with first and second abutments f... | 03/07/2000 |
| 6026945 | Automatic operating apparatus for a friction clutch An automatic operating apparatus for a friction clutch is disclosed which apparatus performs the disconnection of the clutch of a transmission by the assistance of the accumulated load in a load accumulator which can perform the accumulation and the relea... | 02/22/2000 |
| 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 gears including a first gear adjacent the motor, the motor... | 12/28/1999 |
| 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 rod. The model number of the roller tube assembly and the r... | 12/14/1999 |
| 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. In its preferred embodiment, the apparatus includes a drive ... | 11/23/1999 |
| 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 maintaining at least a minimal belt tension, and without the... | 11/16/1999 |
| 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 is continuously engaged with a first stage gear. The first... | 09/14/1999 |
| 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 on the output shaft. The other drive wheel is rotatably fi... | 02/02/1999 |
| 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 shaft and includes a main body portion having a smaller cylind... | 11/10/1998 |
| 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 of the actuator by selective operation thereof. A gear mecha... | 03/17/1998 |
| 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 mobile structure towards its retracted position and a memory ma... | 03/03/1998 |
| 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); an output shaft (3) having a clutch (4 for a final control ... | 08/19/1997 |
