| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 074890390 | Means to selectively lock or retard screw or nut | 27 |
| 20080229851 | Actuator Arrangement - An actuator arrangement comprises a pair of symmetrically loaded screw actuators driven from a common motor through respective drive shafts, and a protection arrangement arranged to avoid the continued application of full motor drive to one of the actuators in the event of the occurrence of a jam condition associated therewith. | 09-25-2008 |
| 20080282822 | GEARING FOR AN ADJUSTMENT DEVICE, ESPECIALLY AN AUTOMOTIVE ADJUSTMENT DEVICE, WITH COMPENSATION FOR PLAY - The invention concerns a gearing for an adjustment device, especially an automotive adjustment device. Included is a threaded spindle as well as a spindle nut sitting on the threaded spindle, while inside a housing of the gearing. On either side of the spindle nut, there is provided a bearing bush to mount the spindle nut inside the gearing housing, while at least one of the bearing bushes consists of flexible material and is clamped under prestressing between the gearing housing and the spindle nut. | 11-20-2008 |
| 20090044646 | Electromotive Linear Drive - An electromotive linear drive with a drive unit having a drive motor and a spindle driven by the drive unit. The drive includes a spindle nut disposed on the spindle. The spindle nut is movable longitudinally on the spindle. A lifting tube is operatively connected to the spindle nut so that the spindle nut moves together with the lifting tube. A connecting part is disposed on a free end of the lifting tube. A braking assembly is disposed in the lifting tube and is operatively connected to the spindle nut via an adjustable, frictional connection. The braking assembly is manipulable. During operation of the drive motor, the spindle nut frictionally engages the braking assembly, preventing rotation of the spindle nut. The frictional connection may be adjusted to permit the spindle nut to rotate with respect to the spindle, thereby manipulating a linear speed component of the lifting tube. | 02-19-2009 |
| 20090090203 | Actuator Arrangement - An actuator arrangement comprises a rotatable shaft, a no-back device operable to apply a braking load to the shaft, a drive arrangement operable to drive the shaft for rotation, and an indicator member, wherein the drive arrangement includes a differential drive operable to drive the indicator member for movement. | 04-09-2009 |
| 20090090204 | Actuator Arrangement - An actuator arrangement comprises a rotatable shaft, a nut mounted upon the shaft and translatable along the shaft upon rotation of the shaft relative to the nut, and a lock arrangement operable to lock the shaft and nut against relative rotation, the lock arrangement comprising a lock component mounted upon one of the shaft and the nut for axial movement relative thereto but held against angular movement relative thereto, the lock component being co-operable with an abutment provided on the other of the shaft and the nut, or a component associated therewith, to lock the shaft and nut to one another against relative rotation. | 04-09-2009 |
| 20100089191 | ACTUATOR WITH INTEGRATED LOCKING DEVICE - The invention relates to a jack ( | 04-15-2010 |
| 20100269604 | PART ASSEMBLING APPARATUS - A part assembling apparatus is provided with a plurality of assembling portions and a ball screw shaft. Each of the assembling portion includes a nut runner for assembling a part to an assembling target. The ball screw shaft includes a thread portion. At least two of the plurality of assembling portions respectively include nut portions threadedly engaged with the thread portion. The nut portions are movable in an axial direction of the ball screw shaft. The thread portion includes a first thread part having a first pitch and a second thread part having a second pitch different from the first pitch. | 10-28-2010 |
| 20100313689 | MECHANICALLY-OPERATING ACTUATOR WITH HYDRAULIC DAMPING - The invention relates to an actuator comprising a body in which a rod is mounted to slide, the actuator including a screw extending inside the rod to co-operate with a nut secured to the rod, the screw being driven in rotation by a motor. According to the invention, the rod is associated with a piston that slides in a cavity of the body so as to define two chambers therein, the chambers being filled with hydraulic fluid and being put into communication via fluid transfer means fitted with at least one regulator member adapted to throttle the fluid expelled from one of the chambers, in at least one travel direction of the rod. | 12-16-2010 |
| 20110303031 | Linear sail control system based upon screw forms - A novel apparatus and method of controlling sails and their related mechanical forces on sailing systems through the utilization of threaded elements/forms. This device is easily scaled to the requirements of the particular sailing system being controlled. It has four basic elements providing control. The first is a rotatable lead screw having a lead angle of 5° or less. A matching internally threaded element, which travels in a linearly upon the lead screw when same is rotated. The lead screw may have non-threaded smooth sections on each end, which provide an area for rotary bearing supports. Rotation of the lead screw is provided for upon either or both ends. | 12-15-2011 |
| 20110303032 | GEARING MECHANISM - The invention relates to a gearing mechanism ( | 12-15-2011 |
| 20110308342 | COUPLING MECHANISM FOR RELEASABLY INTERCONNECTING A FIRST AND A SECOND MECHANICAL MEMBER AND A LINEAR ACTUATOR EQUIPPED WITH SUCH A COUPLING MECHANISM - The invention refers to coupling mechanism and a linear actuator incorporating such a mechanism for releasably interconnecting first and second mechanical members ( | 12-22-2011 |
| 20120096964 | Feed Apparatus - A feed apparatus has a ball screw, a nut, a drive motor, a braking mechanism and a controller and moves a movable body vertically. When recognizing a movement command for rapid traverse relating to the movable body, the controller, when the movable body is to be moved upward, moves the movable body past a target position according to the movement command and then reverses the moving direction thereof and moves the movable body to the target position and stops it there, and, when the movable body is to be moved downward, moves the movable body directly to the target position and stops it there. After moving the movable body to the target position and stopping it there, the controller causes the drive motor to keep the position of the movable body at the stop position and causes the braking mechanism to brake the movement of the movable body. | 04-26-2012 |
| 20120234117 | SUBSEA ELECTRIC ACTUATORS AND LATCHES FOR THEM - A subsea electric actuator comprises an electric motor and a telescopic drive connection ( | 09-20-2012 |
| 20130152717 | AUTOMATICALLY LOCKING LINEAR ACTUATOR - An automatically locking actuator includes a first end connector, a rotatable drive screw operably coupled to the first end connector, a nut assembly threadably mounted on the drive screw, a second end connector operably coupled to the nut assembly and a rotary lock having a rotor and where the actuator moves between extended and retracted positions in response to rotation of the rotor. | 06-20-2013 |
| 20130186219 | INTEGRATED THRUST REVERSER ACTUATOR AND VARIABLE AREA FAN NOZZLE ACTUATOR - An integrated thrust reverser and variable area fan nozzle actuator includes a ballscrew shaft having a first ballnut and a second ballnut. The second ballnut is fastened to a first translatable object. A bearing is affixed to the ballscrew shaft between the first ballnut and the second ballnut. A second translatable object is coupled to the bearing. A drive mechanism is operably coupled to the first ballnut for rotation and a locking mechanism selectively couples the ballscrew shaft to the first ballnut. | 07-25-2013 |
| 20140144264 | APPARATUS FOR RELEASING A SECURING SCREW FOR A UNIT IN A HOUSING - In a device for releasing a securing screw for a unit in a housing, in particular a pinion unit in a steering gear of a motor vehicle, the securing screw is connected via an external thread to an internal thread in the housing, wherein the securing screw is provided with a latching device, which has latching levers disposed distributed on the circumference of the securing screw, each of which said latching levers is provided with latching lugs disposed on the free ends of the latching levers. The latching lugs latch into toothing gaps of a toothing geometry of the housing. The latching device can be connected to a tool in order to release the latching levers having the latching lugs from the latched position by means of a radially inwardly directed movement of the latching levers. | 05-29-2014 |
| 20140174225 | LINEAR ACTUATOR WITH ARM DRIVEN MECHANISM - A linear actuator ( | 06-26-2014 |
| 20150047445 | FINE ADJUSTMENT MECHANISM AND ANGLE ADJUSTING DEVICE HAVING THE FINE ADJUSTMENT MECHANISM - A fine adjustment mechanism includes a connecting unit and a fine-tuning bolt having a bolt shaft and a bolt head. The bolt shaft has a threaded section rotatably engaged with the connecting unit, a non-threaded section between the threaded section and the bolt head, and an annular protrusion projecting outwardly and radially from an outer surface of the non-threaded section and spaced apart from the bolt head. A retaining unit is molded over the fine-tuning bolt and covers the annular protrusion and portions of the non-threaded section which are proximate to two opposite annular end surfaces of the annular protrusion. The fine-tuning bolt is rotatable relative to the retaining unit. The connecting unit is movable along the threaded section when the fine-tuning bolt is rotated. | 02-19-2015 |
| 20150082927 | ACTUATING DEVICE FOR MOVING A MOVABLE COVER OF A THRUST REVERSER - The invention relates to an actuating device ( | 03-26-2015 |
| 20150300468 | DRIVE DEVICE - A drive device has a spindle drive having a threaded spindle and a spindle nut arranged on the threaded spindle. The spindle drive is configured to drive a first component element and a second component element so as to be axially movable relative to one another. The spindle drive is reversibly rotatably drivable around an axis of rotation extending coaxial to the threaded spindle by a rotatably driven driveshaft arranged in a housing so as to be fixed with respect to rotation. A brake device prevents axially relative movement of the first component element and second component element relative to one another through axial application of force to the first component element and/or second component element. | 10-22-2015 |
| 20150337930 | ELECTRIC ACTUATOR ASSEMBLY - An electric actuator assembly comprises a main actuator including a gear set containing a stepped friction portion located on a gear shaft of a drive gear thereof, an extension rod, and a power drive for rotating the gear set to move the extension rod through a lead screw, and a one-way bearing consisting of an inner race fitted to the gear shaft of the drive gear, an outer race surrounding the inner race, and a backstop mechanism mounted in between. When operating the power drive to rotate the gear set in lifting the extension rod, the inner race is rotated by the gear set relative to the outer race in one direction. When the driving power is off, the one-way bearing cannot rotate in reverse direction, the stepped friction portion is abutted against the flat contact surface of the inner race to produce a braking effect, preventing falling of the load that is supported on the main actuator. | 11-26-2015 |
| 20160069439 | MAGNETIC DAMPING SYSTEMS - A rotary magnetic damper comprises a first, rotary damper element, a second, static damper element and a rotary input coupled to the rotary damper element. The coupling between the input and the rotary damper element is such that rotation of the rotary input causes the rotary damper element to progressively magnetically engage the static damper element whereby to progressively increase a damping force created by the damper. The rotary damper element may be a magnet or magnets mounted on a carrier which threadingly engages a screw driving element such that as the input rotates the carrier, it and the rotary damper element translate axially along the screw driving element towards the static damper element. | 03-10-2016 |
| 20160121922 | EXTENSIBLE ACTUATOR CONTROL METHOD, EXTENSIBLE ACTUATOR, AND STEERING DEVICE - An extensible actuator includes a motor, a rod, a conversion unit and an electromagnetic braking system. The motor generates rotating force. The rod freely reciprocates in an axial direction. The conversion mechanism converts the rotating force of the motor into a reciprocating motion of the rod. The electromagnetic braking system brakes the reciprocating motion of the rod. | 05-05-2016 |
| 20160123275 | Actuation Device for Moving a Movable Cowling of a Thrust-Reverser - The invention relates to an actuation device ( | 05-05-2016 |
| 20160138689 | DRIVING APPARATUS FOR HIGH-LOAD LINEAR ACTUATOR - A high-load linear actuator includes a driving mechanism, a worm shaft, a worm wheel assembly, a lead screw, a telescopic pipe and an outer pipe. The driving mechanism includes a base and a motor. The base has a supporting portion and an accommodating portion. The motor is fixed to the supporting portion. The worm shaft extends from the motor into the supporting portion. The worm wheel assembly includes a worm wheel and two bearings for supporting the worm wheel in the accommodating portion. The worm wheel is engaged with the worm shaft. The lead screw is disposed through the worm wheel and driven by the motor for rotation. The telescopic pipe slips on the lead screw to be threadedly connected therewith. The outer pipe slips on the telescopic pipe. The rotation of the lead screw drives the telescopic pipe to linearly extend or retract relative to the outer pipe. | 05-19-2016 |
| 20160160969 | ELECTROHYDRAULIC ACTUATOR - The invention relates to an electrohydraulic actuator comprising a hydraulic piston, a spindle drive for moving the piston along an axis of rotation, wherein the spindle drive comprises a spindle and a nut, and a worm wheel, which is coaxially attached to the nut. Furthermore, an electric motor having a worm, which meshes with the worm wheel, is provided. The nut is radially and axially supported by means of a bearing. In addition, there is a single-armed rotation-prevention mechanism in order to prevent the spindle from rotating. An angle with respect to the axis of rotation is included between a point of action of the worm on the worm wheel and the effective direction of the rotation-prevention mechanism, wherein the angle is selected in such a way that, for a predetermined torque acting on the nut, a radial force acting on the piston is minimized. | 06-09-2016 |
| 20160252049 | ACTUATOR DEVICE FOR MOVING A MOVABLE COWL OF A THRUST REVERSER | 09-01-2016 |
