Means To Selectively Lock Or Retard Screw Or Nut Patents (Class 74/89.39)
  • Patent number: 11167664
    Abstract: A safety device for a lock mechanism may have a housing that encapsulates the lock mechanism. The housing may have at least one opening, through which at least one adjustment element coupled to the lock mechanism is guidable. The at least one opening may have a sealing element. A seat track for a seat is also disclosed. The seat track may have a first track assembly with at least one track member, a second track assembly with at least one further track member, and a lock mechanism configured to lock an adjustment of the seat.
    Type: Grant
    Filed: April 8, 2020
    Date of Patent: November 9, 2021
    Assignee: Adient Engineering and IP GmbH
    Inventor: Michael J. Kapusky
  • Patent number: 11097586
    Abstract: A damper and spring unit includes a damper having a cylinder and a rod extending along a first axis (z), a spring plate arranged around the cylinder and slidable with respect to the cylinder along the first axis (z), a spring resting at its bottom on the spring plate, and an electro-mechanical adjustment device interposed between the cylinder and the spring plate for adjusting in a continuous and controlled manner the vertical position of the bottom end of the spring and the height of the vehicle from the ground. The adjustment device includes an electric motor generating a rotary motion and a motion conversion mechanism having one screw extending along a second axis (z?) parallel to the first axis (z), but spaced therefrom, and driven into rotation by the electric motor about the second axis (z?), and a nut meshing with the screw and drivingly connected for translation with the spring plate.
    Type: Grant
    Filed: November 16, 2018
    Date of Patent: August 24, 2021
    Assignee: MARELLI SUSPENSION SYSTEMS ITALY S.P.A.
    Inventors: Walter Bruno, Piero Antonio Conti, Giordano Greco, Nicola Amati, Renato Galluzzi, Sanjarbek Ruzimov, Andrea Tonoli
  • Patent number: 11041551
    Abstract: The invention relates to a spindle drive, comprising a drive unit, a spindle, and a spindle nut in threaded engagement with the spindle, the spindle nut being driven by the drive unit by means of a drive element, and wherein the spindle nut is mounted on the drive element in such a way that the spindle nut and the spindle in threaded engagement with it are pivotable relative to the drive element.
    Type: Grant
    Filed: August 2, 2019
    Date of Patent: June 22, 2021
    Assignee: Stabilus GmbH
    Inventors: Andreas Ritter, Peter Oster, Jörg Hillen, Oleg Batosky
  • Patent number: 11008036
    Abstract: A steering system with an actuating device (1), in particular a rear axle steering system, having a spindle drive (3) with a spindle (5) and a spindle nut (4) which is fitted into the housing (2) of the steering system in a positionally fixed but rotatable manner and is driven by an electric motor (9). The electric motor (9) is a vernier motor that drives the spindle drive (3) and is integrated in the spindle drive (3). The actuating device (1) is used for a rear axle steering system of a motor vehicle.
    Type: Grant
    Filed: April 27, 2017
    Date of Patent: May 18, 2021
    Assignee: ZF Friedrichshafen AG
    Inventors: Michael Klank, Jens Vortmeyer, Hans-Jürgen Pfisterer, Adrian Riechmann, Christoph Anneken
  • Patent number: 10933978
    Abstract: A linear actuator, for controlling movement of a control surface of an aircraft, includes a screw, a primary load path and secondary nut engaged with the screw, and an engagement member. The engagement member moves from an ambush position, maintained by the primary load path or the secondary nut, to an engaged position, restricting relative movement between the primary load path and the secondary nut. The restricted relative movement may occur in response to free relative axial movement of the primary load path and the secondary nut caused by a failure of the primary load path of the linear actuator. A sensor of the linear actuator is configured to sense the failure of the primary load path and the free relative axial movement of the primary load path and the secondary nut.
    Type: Grant
    Filed: October 10, 2017
    Date of Patent: March 2, 2021
    Assignee: Parker-Hannifin Corporation
    Inventors: Derek James Olson, Abbas M. Charafeddine
  • Patent number: 10876610
    Abstract: A self-locking nut and screw assembly may include a screw and a first nut rotatable and linearly translatable with respect to each other. The assembly may also include a first motor configured to provide torque to one of the screw and the first nut. The assembly may further include a locking mechanism configured to lock the screw to prevent backdrive when the motor is not providing torque to the one of the screw and the first nut.
    Type: Grant
    Filed: June 8, 2018
    Date of Patent: December 29, 2020
    Assignee: Eaton Intelligent Power Limited
    Inventors: Thomas J. Fields, Sorin Gavriliuc, Christopher J. Jezewski, Tyler Q. Curtis
  • Patent number: 10865861
    Abstract: Provided is a ball screw device (31), including: a ball screw shaft (33); and a ball screw nut (32) which is rotatably fitted to an outer periphery of the ball screw shaft (33) through intermediation of a plurality of balls (34), wherein the ball screw shaft (33) performs a linear motion in an axial direction along with rotation of the ball screw nut (32), wherein the ball screw shaft (33) has a hollow shape having a hole portion (33b) extending in the axial direction, and wherein a stroke detection sensor (55) configured to detect an amount of displacement of the ball screw shaft (33) in the axial direction is arranged in the hole portion (33b).
    Type: Grant
    Filed: January 25, 2017
    Date of Patent: December 15, 2020
    Assignee: NTN CORPORATION
    Inventors: Takushi Matsuto, Yoshinori Ikeda, Yuuki Naitou
  • Patent number: 10837572
    Abstract: A torque limiter (120) includes a coil spring (124), an inner shaft which is connected to a drive shaft (58) and is disposed to be inserted into a coil portion of the coil spring (124) so that the coil portion of the coil spring (124) is configured to come into close contact with an outer peripheral surface, a bottomed cylindrical outer member (122) which is disposed at the outside of the coil portion with a gap interposed therebetween and is provided relatively rotatable with respect to the inner shaft so that both end portions of a wire forming the coil spring (124) are locked thereto, and a drive gear (123) which is integrally formed with a plate portion (122a) of the outer member (122) and is configured to transmit a rotational force to the screw shaft.
    Type: Grant
    Filed: October 2, 2017
    Date of Patent: November 17, 2020
    Assignee: Mitsuba Corporation
    Inventor: Takashi Takizawa
  • Patent number: 10801594
    Abstract: A screw actuator, includes: a screw comprising a first helical contact surface and a first helical raceway surface; a nut comprising a second helical contact surface and a second helical raceway surface; and a plurality of ball bearings in a helical raceway formed by the first helical raceway surface and the second helical raceway surface. When the screw is loaded relative to the nut in a first axial direction, the first helical contact surface is compressed against the second helical contact surface. When the screw is loaded relative to the nut in a second axial direction, the plurality of ball bearings are compressed between the first helical raceway surface and the second helical raceway surface.
    Type: Grant
    Filed: May 30, 2018
    Date of Patent: October 13, 2020
    Assignee: The Boeing Company
    Inventor: Michael J. Burgess
  • Patent number: 10794483
    Abstract: A spool valve includes a spool in a spool insertion hole defined in a valve body. The spool is configured to be moved by an electric motor via a ball-screw to a first position where an input port is in communication with an output port, while the output port is not in communication with a drain port, and to a second position where the input port is not in communication with the output port, while the output port is in communication with the drain port.
    Type: Grant
    Filed: July 17, 2015
    Date of Patent: October 6, 2020
    Assignee: NTN CORPORATION
    Inventors: Kyohei Sasanuma, Takayuki Norimatsu, Naoshi Hattori, Takahide Saito, Hiroshi Kawamura
  • Patent number: 10711872
    Abstract: A selectively self-locking actuator includes a threaded shaft having a first threaded portion and a second threaded portion. The first threaded portion includes a semicircular ball screw threadform and the second threaded portion includes a power screw threadform. The actuator further includes a ball nut mated to the first threaded portion, a split nut selectively mated with the second threaded portion, and a nut coupler plate configured to secure the ball nut and split nut at a fixed distance from each other. The split nut includes at least a first split nut portion and a second split portion each mated to a spring and a driver. The spring is configured to bias the first split nut portion and the second split nut portion either radially inward or radially outward with respect to the threaded shaft, and wherein the driver is configured to selectively oppose the bias of the spring.
    Type: Grant
    Filed: November 14, 2018
    Date of Patent: July 14, 2020
    Assignee: United States of America as represented by the Secretary of the Air Force
    Inventors: David B. Doman, Michael W. Oppenheimer
  • Patent number: 10677194
    Abstract: There is provided an actuator for use in a thrust reverser of an aircraft, comprising a screw shaft and a nut translatable along the shaft between a retracted position and an extended position, a tine component comprising tine fingers formed with projections that are configured to engage formations on the nut when the nut occupies its retracted position to secure the nut against axial movement, and a movable lock member engageable with the tine fingers to restrict radial movement of the tine fingers in a first position, the lock member movable between the first position and a second position in which the lock member does not restrict radial movement of the tine fingers. The lock member is movable between the first position and the second position by means of an electromagnetic actuator.
    Type: Grant
    Filed: August 4, 2017
    Date of Patent: June 9, 2020
    Assignee: GOODRICH ACTUATION SYSTEMS LIMITED
    Inventors: Andrew Hawksworth, Anthony Morgan
  • Patent number: 10641370
    Abstract: The invention relates to a ball screw including a spindle nut arranged on a lead screw, and balls, which roll on ball grooves of the spindle nut and of the lead screw, and a circumferential stop on the screw side and a circumferential stop on the nut side, the spindle nut being arranged in a sleeve surrounding the ball nut, the sleeve is formed from sheet metal by shaping and the nut-side circumferential stop is formed integrally on the sleeve.
    Type: Grant
    Filed: September 3, 2015
    Date of Patent: May 5, 2020
    Assignee: SCHAEFFLER TECHNOLOGIES AG & CO. KG
    Inventors: Mario Kreutzer, Richard Baier, Markus Oswald, Dieter Adler
  • Patent number: 10328188
    Abstract: Embodiments of reduced pressure systems and methods for operating the systems are disclosed. In some embodiments, a system can include a source of negative pressure and a controller configured to present GUI screens for controlling and monitoring operation of the system. The controller can be configured to receive, via the GUI, an adjustment of a negative pressure therapy parameter and adjust (or cause adjustment) of the operation of the negative pressure source based on received adjustment. The controller can be further configured to record historical data parameters associated with negative pressure therapy parameters. The controller can also be configured to transmit (or cause transmission) over a communication channel at least some of recorded historical data. The system can be configured to provide external connectivity for accomplishing various activities, such as location tracking, compliance monitoring, tracking of operational data, remote selection and adjustment of therapy settings, etc.
    Type: Grant
    Filed: March 13, 2014
    Date of Patent: June 25, 2019
    Assignee: SMITH & NEPHEW, INC.
    Inventors: Kealoha Young Deutsch, William W. Gregory, Kory A. Gunnerson, Kathryn Ann Leigh, Andrew P. Muser, Karl W. Vanderbeek
  • Patent number: 10081325
    Abstract: An apparatus and method for forming a releasable lockable lap bar assembly that optimizes the resistance against lap bar axle and lap bar connecting arm slippage. The invention involves the use of a plurality of splines on the end of the lap bar axle that is coupled within a stop sleeve in the distal end of the lap bar connecting arm. The stop sleeve also includes a plurality of splines aligned with an axis of the sleeve. The plurality of splines on the lap bar axle are aligned with a lap bar axis. When the splined end of the axle is inserted into the stop sleeve, the respective plurality of splines interdigitate to form a tight engagement of the lap bar axle and the connecting arm. Bolts in apertures of the stop sleeve can also be used to further prevent the lap bar axle from backing out of the sleeve.
    Type: Grant
    Filed: February 20, 2017
    Date of Patent: September 25, 2018
    Assignee: Philadelphia Toboggan Coasters, Inc.
    Inventors: Thomas D. Rebbie, Torrence V. Jenkins, Jr., Richard W. Snyder
  • Patent number: 9976638
    Abstract: It is the intention for a linear unit (7) for imparting an axially acting force, having a rotational-translational gear (8), in particular a ball screw, which has a threaded spindle (1) and a threaded nut (2), and having a force transmission element (3), which is in particular in the form of a thrust rod or thrust tube, to be improved such that fewer components are required and the assembly of the linear unit is kept as simple as possible. For this purpose, the threaded nut (2) and the force transmission element (3) are connected to one another by means of a positively locking, in particular play-free connection, in particular by means of clinching.
    Type: Grant
    Filed: September 9, 2013
    Date of Patent: May 22, 2018
    Assignee: CONTINENTAL TEVES AG & CO. OHG
    Inventors: Theo Baukholt, Johannes Görlach, Pierre Schmidt, Kristijan Tarandek
  • Patent number: 9714098
    Abstract: A ram air turbine system includes an actuator having a threaded portion, a rod having a threaded region at or near one end and an eyelet at an opposite end, and a bushing. The bushing has a first thread engaged with the threaded portion of the actuator, and a second thread engaged with the threaded region of the rod, such that an actuation force can be transmitted between the actuator and the rod through the bushing. The first and second threads of the bushing have different pitches.
    Type: Grant
    Filed: May 1, 2012
    Date of Patent: July 25, 2017
    Assignee: Hamilton Sundstrand Corporation
    Inventors: David Everett Russ, Gary Sasscer
  • Patent number: 9346485
    Abstract: A fixation member is circularly formed to surround a wheel turning shaft and includes an abutment surface in abutment with an end surface of a bearing on one axial side. The fixation member fixes the bearing to a housing by being fixed in the housing with the abutment surface in abutment with the end surface of the bearing. When being mounted, the fixation member is provided by being moved from an opposite axial end side to one axial end side of the nut. The abutment surface of the fixation member is formed on at least a radially inner side of the fixation member. The fixation member includes a cutout portion provided on the radially inner side of the fixation member and formed to prevent interference with a circulation member when the fixation member is inserted in the housing.
    Type: Grant
    Filed: January 6, 2014
    Date of Patent: May 24, 2016
    Assignee: HITACHI AUTOMOTIVE SYSTEMS STEERING, LTD.
    Inventors: Satoru Muto, Keisuke Kitamura, Shogo Ishikawa
  • Patent number: 9182021
    Abstract: A disk brake system includes a disk, brake pads, and a linear motion actuator including an electric motor, a rotary shaft coupled to the motor through a reduction gear mechanism, planetary rollers formed with helical grooves in their outer surfaces, and an outer ring member having a helical rib engaged in the helical grooves. The outer ring is coupled to one of the brake pads. When the rotary shaft is rotated by the motor, the outer ring member is moved axially through the planetary rollers, and the brake pads are pressed against the disk. The linear motion actuator further includes a locking mechanism including engaging holes formed in an intermediate gear of the reduction gear mechanism at equal intervals, a locking pin, and a linear solenoid for moving the locking pin until the pin engages in one of the engaging holes, thus locking the motor.
    Type: Grant
    Filed: October 17, 2011
    Date of Patent: November 10, 2015
    Assignee: NTN CORPORATION
    Inventors: Makoto Muramatsu, Tatsuya Yamasaki, Masaaki Eguchi, Tomomi Goto
  • Patent number: 9021905
    Abstract: A driving device for a hatch in a vehicle with a first housing part connectable to a stationary base part or a movable structural component part, a second housing part connectable to the other, of the movable structural component part and the stationary base part, a spindle drive by which the first and second housing parts are movable axially relative to one another, a rotary drive that drives the spindle drive in rotation including a motor and a gear unit accommodated in a gear unit housing, and a braking device. The spindle drive includes a threaded spindle that has a first spindle portion and a braking spindle nut that is axially movable on the first spindle portion and a second spindle portion and a working spindle nut axially movable on the second spindle portion. The braking spindle nut cooperates with the braking device for applying a holding force to the spindle drive.
    Type: Grant
    Filed: April 21, 2011
    Date of Patent: May 5, 2015
    Assignee: Stabilus GmbH
    Inventor: Thomas Reif
  • Patent number: 9016152
    Abstract: 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.
    Type: Grant
    Filed: October 7, 2008
    Date of Patent: April 28, 2015
    Assignee: Goodrich Actuation Systems Limited
    Inventors: Tony Jones, John Herbert Harvey, Michael Paul Somerfield
  • Patent number: 8991582
    Abstract: An actuator for driving a release mechanism of a clutch includes a motor, an output member, a ball screw mechanism, a trapezoidal screw mechanism and a power transmission mechanism. The output member is coupled to the release mechanism, and is movable in an actuation direction of the release mechanism. The ball screw mechanism is configured to convert rotation of the motor in one direction into movement of the output member in a first axial direction. The trapezoidal screw mechanism has a self-lock function against a reverse driving force from the release mechanism, and is configured to convert rotation of the motor in the other direction into movement of the output member in a second axial direction. The power transmission mechanism is configured to selectively transmit rotation of the motor to the ball screw mechanism or the trapezoidal screw mechanism.
    Type: Grant
    Filed: November 16, 2012
    Date of Patent: March 31, 2015
    Assignee: EXEDY Corporation
    Inventors: Yasuhiko Eguchi, Teruhiko Tanaka
  • Publication number: 20150082927
    Abstract: The invention relates to an actuating device (1) for moving a mobile cap of a thrust reverser, comprising: —an actuator comprising a first element (3), such as a screw, and a second element (4), such as a nut, collaborating with the first element in such a way that turning the first element causes the second element to move in a translational movement, —a locking piece (18) rotationally mobile between a locked position in which the locking piece prevents the first element (3) from turning, and an unlocked position in which the locking piece (18) allows the first element (3) to turn, and —an unlocking piece (25) rotationally mobile between an active position in which the unlocking piece (25) urges the locking piece (18) towards the unlocked position and a passive position in which the unlocking piece (25) allows the locking piece (18) to return to the locked position.
    Type: Application
    Filed: April 23, 2013
    Publication date: March 26, 2015
    Inventors: Mickael Werquin, David Charrier, Oleg Gomolko, Pascal Omnes
  • Publication number: 20150047445
    Abstract: 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.
    Type: Application
    Filed: January 15, 2014
    Publication date: February 19, 2015
    Applicant: Wistron NeWeb Corp.
    Inventors: Lan-Chun Yang, Ming-Chan Lee, Yi-Chieh Lin, Hung-Yuan Lin, San-Yi Kuo
  • Patent number: 8943916
    Abstract: A chassis actuator adjusting a movably mounted component of a chassis, which has a first actuator component connected to the movably mounted component and a second actuator component connected to a fixed chassis component. The actuator components are adjustable axially by a ball screw that has a threaded spindle and a nut which runs on spindle. The nut is driveable by a drive motor that has a rotor coupled to the nut and a fixed stator arranged axially symmetrically with respect to the nut. The rotor is coupled to the nut by a wrap spring which radially surrounds the nut and via which the nut is rotated during rotation of the rotor and which forms a brake device. The brake device can be actuated by an external chassis force which acts on and rotates the nut and builds up a friction moment that counteracts the rotation of the nut.
    Type: Grant
    Filed: September 21, 2011
    Date of Patent: February 3, 2015
    Assignee: Schaeffler Technologies AG & Co. KG
    Inventors: Juergen Osterlaenger, Mark Lauger, Thomas Mehlis
  • Patent number: 8941276
    Abstract: In one arrangement, a motor assembly includes a housing defining a housing chamber, a stator disposed within the housing chamber, and a rotor assembly disposed within the housing chamber. The rotor assembly includes a spindle housing defining a spindle housing chamber extending along a longitudinal axis of the spindle housing and a set of magnets disposed about an outer periphery of the spindle housing and in proximity to the stator. The rotor assembly includes a ball nut cartridge disposed within the spindle housing chamber of the spindle housing and a securing mechanism configured to secure the ball nut cartridge to the spindle housing.
    Type: Grant
    Filed: March 2, 2012
    Date of Patent: January 27, 2015
    Assignee: Bose Corporation
    Inventors: Daniel Charles Haferman, Andrew Joseph LaFosse, Christopher Alan Pare
  • Patent number: 8932176
    Abstract: A method of locking a linear output member in a retracted position within a linear actuator, where the linear output member is capable of axial motion within a housing of the linear actuator, includes rotating a generally tubular rotor disposed within a rotary lock assembly of the actuator to a first rotor position, and shifting a lock capable of radial displacement within the rotary lock assembly based on rotating the rotor to the first position. The lock engages a radial groove of the linear output member when the linear output member is in a retracted position. The rotary lock assembly is constrained from axial motion. The radial groove of the linear output member includes an axially angled, substantially planar surface. The lock is configured to include an axially angled surface shaped complimentary to the axially angled, substantially planar surface of the radial groove.
    Type: Grant
    Filed: February 6, 2014
    Date of Patent: January 13, 2015
    Assignee: Woodward HRT, Inc.
    Inventor: Joseph Thomas Kopecek
  • Patent number: 8904890
    Abstract: A moving device is disclosed. A moving device includes a driving unit comprising a rotary shaft that is rotatable in a forward direction and a reverse direction by air pressure, a power delivery unit connected to the rotary shaft and adapted and configured to convert rotary motion of the rotary shaft to linear motion.
    Type: Grant
    Filed: July 31, 2012
    Date of Patent: December 9, 2014
    Assignee: Hyundai Motor Company
    Inventors: Hyun Sung Park, In Sung Chang, Jung Whan Yeum
  • Patent number: 8899121
    Abstract: A spindle drive having a threaded spindle driveable in a rotational fashion, a carriage adjustable via the threaded spindle along a guide rail, and several guide carriages arranged in front and behind the carriage in the feed direction to support the spindle, with the guide carriages arranged in front of the carriage in an accumulating motion being pushed together successively by the carriage towards the spindle end, and with the guide carriages arranged behind the carriage being entrained by a coupling mechanism and moved into allocated support positions. Coupling elements are provided on the guide carriages and the carriage, that cooperate together and can be operated by switching elements fixed on the guide rail, by which the guide carriages arranged in front of the carriage are automatically coupled during the successive displacement motion, and by which the entrained guide carriages upon reaching their support position are automatically decoupled and fixed.
    Type: Grant
    Filed: December 16, 2011
    Date of Patent: December 2, 2014
    Assignee: Schaeffler Technologies GmbH & Co. KG
    Inventor: Roland Schmidt
  • Patent number: 8875592
    Abstract: A linear actuator with a reversible electric motor (3,11,26,27,34), which over a transmission (4,12,24,25,35) drives a non-self locking spindle (5,14,22,23,36), by which a tube-shaped positioning element can be moved axially, in that it with one end is connected to a spindle nut (6,15) on a spindle (5,14,22,23,36). The actuator comprises a quick release (9,13) for releasing the tube-shaped positioning element (7,16,28,29,37) from the electric motor (3,11,26,27,34) and the part of the transmission (4,12,24,25,35) that lies from the motor (3,11,26,27,34) to the quick release (9,13) such that the spindle (5,14,22,23,36) is set to rotate by the load on the tube-shaped positioning element (7,16,28,29,37). The actuator further comprises braking means for controlling the speed of the tube-shaped positioning element (7,16,28,29,37) during the outer load, when the quick release (9,13) is activated.
    Type: Grant
    Filed: December 6, 2010
    Date of Patent: November 4, 2014
    Assignee: Linak A/S
    Inventors: Jeppe Christian Bastholm, John Guttorm Abrahamsen
  • Patent number: 8844389
    Abstract: 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.
    Type: Grant
    Filed: December 14, 2011
    Date of Patent: September 30, 2014
    Assignee: Woodward HRT, Inc.
    Inventor: Joseph Thomas Kopecek
  • Patent number: 8840507
    Abstract: An apparatus has a first motor for moving an actuator, a first brake for selectively braking the motor, a second brake that is engaged, the second brake dissipating torque spikes in the system, and a gear attaching the first motor to the actuator to cause the actuator to move and to the second brake whereby the torque spikes overcome stiction in the engaged brake so that the torque spike is dissipated in the engaged brake.
    Type: Grant
    Filed: October 5, 2009
    Date of Patent: September 23, 2014
    Assignee: Hamilton Sunstrand Corporation
    Inventors: Richard A. Himmelmann, David J. Lang
  • Publication number: 20140234089
    Abstract: An actuating assembly for an aircraft engine thrust reverser includes a drive shaft bearing a master pinion; a ball screw bearing a slave pinion engaging with the master pinion; a nut capable of translating over the ball screw as a result of the rotation of the ball screw; an extension tube rigidly secured to the nut and a lock assembly to block the rotation of the drive shaft in a so-called direct jet position of the reverser. The extension tube includes, at its free end, a member for connecting to a portion of the reverser prior to being actuated. In particular, the lock assembly includes an abutment secured to the drive shaft, and a cotter moveable between a locking position and an unlocking position. The reduction ratio (R) between the slave and master pinions is even.
    Type: Application
    Filed: December 18, 2013
    Publication date: August 21, 2014
    Applicants: SAGEM DEFENSE SECURITE, AIRCELLE
    Inventors: Pierre MORADELL-CASELLAS, Franck Delnaud
  • Patent number: 8794088
    Abstract: The invention relates to a telescopic actuator comprising a body (1) defining a cylindrical cavity of longitudinal axis (X); a rod (3) mounted to slide telescopically in the cylinder along the said axis; a nut (7) secured to the rod; a lead screw (4) mounted on the cylinder to extend along and rotate about the said axis (X) and collaborate with the nut in such a way that a rotation of the lead screw causes a telescopic movement of the rod in the cylinder; means (8, 9, 10) for driving the rotation of the lead screw. According to the invention, the nut is mounted on the rod to be axially retained thereon by retaining means (12, 13, 14; 30 to 38) which can be made to release the nut axially from the rod.
    Type: Grant
    Filed: June 5, 2012
    Date of Patent: August 5, 2014
    Assignee: Messier-Bugatti-Dowty
    Inventors: Marc Quenerch'Du, Gërard Balducci
  • Publication number: 20140174225
    Abstract: A linear actuator (1) includes an electrical driving mechanism (10), a lead screw (20), an outer tube (30), a telescopic tube (40) and an arm driven mechanism (50). The arm driven mechanism (50) comprises an arm (51), a driving nut (52), a telescopic sleeve (53), a first washer (54), a nut-tube (55) and a second washer (56). The arm (51) is provided with a handle (511) and a sleeve (512), and the sleeve (512) links with the lead screw (20). An outer peripheral of the telescopic sleeve (53) provided with a plural of screws for screwing with the telescopic tube (40). The nut-tube (55) links with the driving nut (52) for moving together. When the handle (511) rotates, the linear actuator (1) can be operated.
    Type: Application
    Filed: January 28, 2013
    Publication date: June 26, 2014
    Applicant: TIMOTION TECHNOLOGY CO., LTD.
    Inventor: Chou-Hsin Wu
  • Publication number: 20140144264
    Abstract: 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.
    Type: Application
    Filed: July 11, 2012
    Publication date: May 29, 2014
    Applicant: ZF LENKSYSTEME GMBH
    Inventors: Andreas Raab, Andreas Stahl
  • Patent number: 8733192
    Abstract: 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 drivingly 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.
    Type: Grant
    Filed: March 11, 2011
    Date of Patent: May 27, 2014
    Assignee: Timotion Technology Co., Ltd.
    Inventor: Chou-Hsin Wu
  • Patent number: 8715132
    Abstract: A linear actuator is disclosed. The linear actuator includes a housing, a linear output member, and a rotary lock assembly. The linear output member includes a radial groove and is axially movable from a retracted position within the housing. The rotary lock assembly is constrained from axial motion within the housing and includes a rotor and a lock. The rotor is capable of rotation from a first to a second position. When the linear output member is in the retracted position, the rotor surrounds the radial groove. When the rotor rotates to the first position, the lock engages the radial groove and prevents axial motion of the output member from the retracted position.
    Type: Grant
    Filed: December 31, 2010
    Date of Patent: May 6, 2014
    Assignee: Woodward HRT, Inc.
    Inventor: Joseph Thomas Kopecek
  • Patent number: 8673830
    Abstract: A grease composition includes: a poly-?-olefin having a kinematic viscosity at 40 degrees C. of 60 to 320 mm2/s, the poly-?-olefin being contained in an amount of 50 mass % or more relative to a whole composition; a thickener that is a lithium salt of a hydroxyl-free fatty acid having 10 to 22 carbon atoms; and an ashless dithiocarbamate and/or zinc dithiocarbamate that are contained in an amount of 0.1 to 1.5 mass % in terms of sulfur relative to a whole composition. In the grease composition, a phosphorous content is 0.05 mass % or less relative to the whole composition, and a worked penetration is in a range from 265 to 310.
    Type: Grant
    Filed: April 7, 2009
    Date of Patent: March 18, 2014
    Assignee: Idemitsu Kosan Co., Ltd.
    Inventors: Yukitoshi Fujinami, Shigeo Hara, Hiroyuki Kitano, Kensaku Fujinaka, Hironori Yoshimura, Yasushi Ohara
  • Patent number: 8640563
    Abstract: An actuator for a ram air turbine system includes a lock bolt having a multiple circumferentially arranged lateral supports. A piston rod supports multiple up-lock wedges. Multiple rollers are supported by the lateral supports with chamfers on the rollers engaging one another and are configured to radially support the up-lock wedges in a retracted position.
    Type: Grant
    Filed: May 25, 2011
    Date of Patent: February 4, 2014
    Assignee: Hamilton Sundstrand Corporation
    Inventors: David J. Lang, Gary Sasscer
  • Patent number: 8632033
    Abstract: A thrust reverser drive arrangement for driving a thrust reverser cowl for movement relative to first and second guide tracks is described which comprises a first actuator located, in use, close to the first guide track, a second actuator located, in use, close to the second guide track, and a third actuator, the actuators being arranged to be driven in synchronism and at the same speed by a drive motor to drive the cowl for movement, the third actuator being of smaller size and/or weight than the first and second actuators, and wherein the third actuator is provided with a load limiter to limit the transmission of loads through the third actuator in the event that the third actuator is subject to a compressive loading greater than a predetermined level. The invention further relates to a load limiter device suitable for use in such an arrangement.
    Type: Grant
    Filed: September 29, 2010
    Date of Patent: January 21, 2014
    Assignee: Goodrich Actuation Systems Limited
    Inventors: Michael Paul Somerfield, Benjamin Thomas Tucker
  • Patent number: 8621949
    Abstract: The invention concerns a safety device (1) for an actuator comprising a connection means (2) allowing a connection to a releasable holding means (5). The connection means (2) is fixed via a sacrificing means (3) to a supporting means (4), and a resilient means (7) is acting between the supporting means (4) and a supporting portion (8). An extension means (9) is fixed to the supporting means (4) via the connection means (2). The sacrificing means (3) has a mechanical strength such that the sacrificing means (3) breaks when subjected to a force exceeding a predetermined force, such that the extension means is no longer fixed to the supporting means and that a re-connection of the supporting means (4) and the releasable holding means (5) is made impossible. The predetermined force is lower than the mechanical strength of the extension means (9) and the supporting means (4). A linear actuator (13) comprising the safety device (1) is also provided.
    Type: Grant
    Filed: July 2, 2009
    Date of Patent: January 7, 2014
    Assignee: Aktiebolaget SKF
    Inventors: Torbjörn Lövgren, Pontus Claesson, Peter A Hansson
  • Patent number: 8621948
    Abstract: The invention relates to a drive device (20) for entrance/exit devices for public transit vehicles, comprising a drive unit (22) disposed in and driving a column (24) that rotates about an axis of rotation Z-Z during opening and closing operations, said column opening and closing an entrance/exit device. The drive unit (22) is supported in the vehicle by way of a support component (40) and the support component (40) acts as a counterbearing for a torque of the drive unit (22). A coupling device (72) is disposed between the drive unit (22) and the support component (40), said coupling device facilitating a rotation of the drive unit (22) about the axis of rotation Z-Z when a limit of the torque acting on the drive unit is exceeded.
    Type: Grant
    Filed: August 19, 2009
    Date of Patent: January 7, 2014
    Assignee: Gebr. Bode GmbH & Co. KG
    Inventor: Andreas Pellegrini
  • Patent number: 8601891
    Abstract: A driving device having a housing tube connected to a stationary base part or a movable structural component part a protective tube connected to the other respective part a spindle drive which has a threaded spindle and a spindle nut arranged on the threaded spindle by which the housing tube and protective tube are movable axially relative to one another, and a rotary drive that drives the spindle drive via a clutch, a rotationally rigid interconnection thereof can be canceled when a determined torque is exceeded. A magnetic ring having a plurality of north and south poles is rotationally arranged near a stationary sensor element. The magnetic ring is arranged at the clutch that is connected to the threaded spindle, fixed with respect to rotation relative to it.
    Type: Grant
    Filed: December 2, 2011
    Date of Patent: December 10, 2013
    Assignee: Stabilus GmbH
    Inventors: Marian Bochen, Michael Knopp
  • Publication number: 20130292509
    Abstract: A ram air turbine system includes an actuator having a threaded portion, a rod having a threaded region at or near one end and an eyelet at an opposite end, and a bushing. The bushing has a first thread engaged with the threaded portion of the actuator, and a second thread engaged with the threaded region of the rod, such that an actuation force can be transmitted between the actuator and the rod through the bushing. The first and second threads of the bushing have different pitches.
    Type: Application
    Filed: May 1, 2012
    Publication date: November 7, 2013
    Applicant: HAMILTON SUNDSTRAND CORPORATION
    Inventors: David Everett Russ, Gary Sasscer
  • Patent number: 8573080
    Abstract: 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. 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.
    Type: Grant
    Filed: June 8, 2010
    Date of Patent: November 5, 2013
    Assignee: Messier-Bugatti-Dowty
    Inventors: Marc Quenerch'du, Hervé Charuel, Xavier Jubert
  • Publication number: 20130264399
    Abstract: Actuator assembly includes a housing assembly, a ball screw, a ball nut, and a lock. The ball screw is rotationally mounted on and extends from the housing assembly, is coupled to receive an actuator drive torque, and is configured, upon receipt thereof, to rotate. The ball nut is rotationally supported on the ball screw and is configured, in response to rotation of the ball screw, to translate thereon between a stowed position and a deployed position. The lock is disposed at least partially within the housing assembly and is configured to move between a lock position and an unlock position. The lock prevents the ball nut from translating out of the stowed position when the lock is in the lock position and the ball nut is in the stowed position.
    Type: Application
    Filed: August 1, 2012
    Publication date: October 10, 2013
    Applicant: HONEYWELL INTERNATIONAL INC.
    Inventors: Paul T. Wingett, Kevin K. Chakkera, Ron Vaughan, Dan Birchak, Albert Kang, Rich Gockel, Bill Ryan, Brent Bristol
  • Patent number: 8516914
    Abstract: A suspension actuator (1) for positioning a movably mounted component of a motor vehicle suspension, including a first actuator component (4), which is to be connected to the movably mounted component, and a second actuator component (3), which is to be connected to a fixed suspension component, wherein both actuator components can be axially adjusted relative to one another via a ball-type linear drive (5), which includes a threaded spindle (6) and a nut (7) running thereon. Either the nut can be driven via a drive motor (10) for the axial adjustment of the threaded spindle or the spindle can be driven via a drive motor for axial adjustment of the nut.
    Type: Grant
    Filed: April 27, 2009
    Date of Patent: August 27, 2013
    Assignee: Schaeffler Technologies AG & Co. KG
    Inventors: Jürgen Osterlänger, Ralf Mayer, Manfred Kraus, Thomas Mehlis, Stefanie Bärthlein, Meinhard Schmidt, Thomas Dirnberger, Tobias Noss, Falk Heinrich
  • Patent number: 8499653
    Abstract: An electromechanical actuator incorporates a drive housing connected to a motor for rotational motion. A screw is employed with an actuating nut having protruding engagement bosses and a drive coupling is concentrically received within the drive housing having segments equal to the number of engagement bosses. Each segment has a cavity to receive a respective one of the engagement bosses and the segments are cooperatively positionable from an active position radially compressed to engage the bosses within the cavities to a released position radially expanded to disengage the bosses from the cavities.
    Type: Grant
    Filed: June 18, 2009
    Date of Patent: August 6, 2013
    Assignee: The Boeing Company
    Inventors: James J. Sheahan, Jr., Charles E. Morris, David E. Blanding, James L. Peck, Jr.
  • Patent number: 8495924
    Abstract: In an electric actuator, a connector is coupled to one end of a screw shaft that makes up a displacement mechanism, the screw shaft being rotatably supported by first and second bearings. Further, on the other end of the screw shaft, a support ring is disposed through a holder, wherein the support ring is slidable along an inner circumferential surface of a piston rod. On the outer circumferential surface of a piston, a rotation-stopping member is provided, which includes projections thereon that project in a radial direction from the outer circumferential surface, the projections being inserted into grooves of said body.
    Type: Grant
    Filed: March 31, 2009
    Date of Patent: July 30, 2013
    Assignee: SMC Kabushiki Kaisha
    Inventors: Yoshihiro Fukano, Toru Sugiyama, Masaki Miyahara