Motion Conversion Patents (Class 310/80)
  • Patent number: 10648545
    Abstract: An electric linear actuator has a housing with an electric motor mounted on the housing. A speed reduction mechanism and ball screw mechanism converts rotational motion to axial linear motion. A nut is rotationally but axially immovably supported by bearings on the housing. A screw shaft is coaxially integrated with the drive shaft. The shaft is inserted into the nut, via helical grooves and a large number of balls. The screw shaft is non-rotationally supported on the housing but is axially movable. The housing has a first housing and a second housing arranged with their end faces abutting against each other. Joining surfaces of the end faces of the first and second housings are sealed by a curing liquid curable material.
    Type: Grant
    Filed: December 20, 2014
    Date of Patent: May 12, 2020
    Assignee: NTN Corporation
    Inventor: Takao Mizuuchi
  • Patent number: 10523098
    Abstract: An efficient energy saving progressive magnetic rotation motor utilizing interacting rows of magnets on field pole rotors and a main rotor. The field pole rotors have rows of permanent magnets with increasing numbers of magnets per row. The main rotor has magnets and an electro-magnet. Magnets are arranged in opposite direction and polarity on the field pole rotors in relation to the main rotor. Magnetic attraction of the field pole rotors to the main rotor magnets results in a progressive magnetic rotational action producing rotational output. The motor is started, operated and stopped utilizing an electronic controller. Constant rotation is maintained by pulsing the electro-magnet with the controller from a positive to negative pulse synchronized to a feedback sensor located on the main rotor shaft.
    Type: Grant
    Filed: December 28, 2017
    Date of Patent: December 31, 2019
    Inventor: Dale Bowen
  • Patent number: 10422333
    Abstract: An ultra high pressure pump having a servo motor coupled to a piston having a head arranged within a cylinder to define a pumping chamber, whereby the servo motor rotation causes reciprocal displacement of the piston to pressurize fluid in the pumping chamber to pressures greater than 50,000 psi, the servo motor having a feedback loop coupled to a computer, the feedback loop including a pressure feedback signal to control the pump pressure in real time.
    Type: Grant
    Filed: September 12, 2011
    Date of Patent: September 24, 2019
    Inventor: Darren Reukers
  • Patent number: 10105742
    Abstract: A draw press die assembly includes an upper die, a lower die positioned beneath the upper die, a blankholder for supporting an associated workpiece, and a blankholder drive mechanism connected with at least one of the upper die and the blankholder. The blankholder drive mechanism is configured to provide a pulsating movement of the blankholder with respect to the upper die.
    Type: Grant
    Filed: December 9, 2014
    Date of Patent: October 23, 2018
    Assignee: Honda Motor Co., Ltd.
    Inventors: Dennis O'Connor, Julio Malpica, Hideo Yazaki
  • Patent number: 9997980
    Abstract: A connector case of a receiving member includes a peripheral wall portion, in which a seal groove is formed. An inserting portion of a cover member projects from a cover main body toward the connector case and is inserted into the seal groove. Positioning portions project from the cover main body toward the connector case on a side of the inserting portion where a receiving space is placed. Furthermore, a distal end of an inner wall portion of the seal groove is placed on a top side of a distal end of an outer wall portion. A distal end of the positioning portion is placed on a base side of a distal end of the inserting portion.
    Type: Grant
    Filed: December 1, 2015
    Date of Patent: June 12, 2018
    Inventor: Takashi Tsuboi
  • Patent number: 9845851
    Abstract: The present invention provides a spring mechanism which can elastically deform an elastic deformation part with a film shape of a transducer into a shape having high symmetry, and also can be structured in a small size. A spring mechanism 2 includes: a cylindrical member 7 that is provided so as to extend toward a first element member 21 from an elastic deformation part 11 of a transducer 5, and also is arranged so as to slidably penetrate the first element member 21 in the direction of a central axis line C of the elastic deformation part 11; and a rod member 32 that is provided so as to extend toward the cylindrical member 7 from a second element member 22 side, and is slidably inserted in the cylindrical member 7 in the direction of the central axis line C of the elastic deformation part 11.
    Type: Grant
    Filed: May 28, 2015
    Date of Patent: December 19, 2017
    Assignee: HONDA MOTOR CO., LTD.
    Inventor: Atsuo Orita
  • Patent number: 9776553
    Abstract: A stepping motors includes a bracket including a first protruding line and a second protruding line formed on both sides, a stator and a rotor disposed on the bracket, a lead screw coupled with the rotor, and a moving member which moves back and forth according to a rotation of the lead screw, in which the moving member includes a first guide groove which slides on the first protruding line and a second guide groove which slides on the second protruding line, and the first guide groove and the second guide groove include first sections which have widths corresponding to the first protruding line and the second protruding line, respectively, and second sections which have greater widths than the first sections.
    Type: Grant
    Filed: April 10, 2015
    Date of Patent: October 3, 2017
    Assignee: LG INNOTEK CO., LTD.
    Inventor: Su Hyoung Lee
  • Patent number: 9768670
    Abstract: Provided is a motor including a rotor section including a rotor core, a drive magnet attached to the rotor core, and a screw disposed in the rotor core and rotated with the rotor core; a nut member coupled to the screw and vertically moved upon rotation of the rotor section; a stator section disposed to be opposite to the rotor section; a sensor magnet disposed under the screw; and a circuit board on which a magnetic device disposed to be opposite to the sensor magnet is mounted.
    Type: Grant
    Filed: September 29, 2014
    Date of Patent: September 19, 2017
    Assignee: LG INNOTEK CO., LTD.
    Inventors: Seong Jin Kim, Jinho Kim, Kyung Sang Park, Chang Hyun Park, Woo Seob Shim
  • Patent number: 9726166
    Abstract: A well pump includes a plunger reciprocally carried within a barrel between up stroke and down stroke positions. A tubular linear actuator housing located below the barrel has a rotatable rotor. An array of rotor magnets is mounted to the rotor, directing rotor magnetic fields in an outward direction. A cage is fixed against rotation relative to the housing and carried within the housing for axial movement relative to the rotor and the housing. The cage has a cylindrical inner sidewall surrounding the outer sidewall of the rotor. An array of cage magnets is mounted to the inner sidewall of the cage. The cage magnets direct cage magnetic fields in an inward direction relative to the axis. The cage and rotor magnetic fields interact such rotation of the rotor causes axial movement of the cage. A motor rotates the rotor.
    Type: Grant
    Filed: December 10, 2014
    Date of Patent: August 8, 2017
    Assignee: Baker Hughes Incorporated
    Inventors: Steven K. Tetzlaff, Peter F. Lawson, Kevin R. Bierig, Lance T. Robinson, Sean A. Cain
  • Patent number: 9667118
    Abstract: There is provided a vibration generating device including: a driving magnet of a rotor part rotated around a shaft and a coil part disposed to face the driving magnet and electromagnetically interacting with the driving magnet to rotate the rotor part, wherein the number of poles of the driving magnet and the number of coils of the coil part are the same as each other.
    Type: Grant
    Filed: February 18, 2015
    Date of Patent: May 30, 2017
    Assignee: MPLUS CO., LTD.
    Inventor: Yong Tae Kim
  • Patent number: 9587725
    Abstract: An actuator includes a ball nut, a ball screw, and a ball screw stop. The ball nut is adapted to receive an input torque and in response rotates and supplies a drive force. The ball screw extends through the ball nut and has a first end and a second end. The ball screw receives the drive force from the ball nut and in response selectively translates between a retract position and a extend position. The ball screw stop is mounted on the ball screw proximate the first end to translate therewith. The ball screw stop engages the ball nut when the ball screw is in the extend position, translates, with compliance, a predetermined distance toward the first end upon engaging the ball nut, and prevents further rotation of the ball screw upon translating the predetermined distance.
    Type: Grant
    Filed: July 21, 2015
    Date of Patent: March 7, 2017
    Inventors: Paul T. Wingett, Casey Hanlon
  • Patent number: 9531248
    Abstract: An aspect of the present invention has a first disk-shaped member coupled to a first rotating shaft to rotate and a first plate-shaped member having a surface perpendicular to a surface of the first disk-shaped member and holding a first magnet. Moreover, a second disk-shaped member provided so as to face the first disk-shaped member and coupled to a second rotating shaft to rotate, and a second plate-shaped member having a surface perpendicular to a surface of the second disk-shaped member and holding a second magnet are provided. A magnetic pole of the first magnet on a side facing the second magnet and a magnetic pole of the second magnet on a side facing the first magnet have the same pole.
    Type: Grant
    Filed: August 11, 2014
    Date of Patent: December 27, 2016
    Inventors: Tetsuo Kubo, Tomofumi Shibata, Takashi Tsukahara, Tatsutaro Demura
  • Patent number: 9444303
    Abstract: The invention relates to a device (10) for mounting a shaft (1; 26) in a housing (100), having a bearing (5; 5b; 5c) which is connected to the shaft (1; 26) and which is arranged at least indirectly in the housing (100) by means of a positive or non-positive fit, wherein the bearing (5; 5b; 5c) is held in a separate holding body (11; 11a to 11c). It is provided according to the invention that the holding body (11; 11 a to 11c) is held so as to be fixed to the housing (100) in at least one direction by means of a positive and/or non-positive fit, and that the holding body (11; 11a to 11c) is connected directly to components of an electric motor (25).
    Type: Grant
    Filed: November 23, 2011
    Date of Patent: September 13, 2016
    Assignee: Robert Bosch GmbH
    Inventors: Mario Huesges, Detlef Lauk, Tarek Mili, Stephan Scheurich
  • Patent number: 9302058
    Abstract: A system for tracing tubing which forms a conduit from a source of infusion liquid to a patient by way of an infusion pump has a vibration generator manually operable by a user to generate vibrations at an origin location along the tubing, wherein the vibrations are propagated by the tubing and have a vibration signature. A vibration sensor arranged at a destination location along the tubing receives the vibrations and generates a digital vibration signal. Signal processing circuitry connected to the vibration sensor processes and evaluates the digital vibration signal to determine a trace status of the tubing between the vibration generator and the vibration sensor. An indicator connected to the signal processing circuitry provides an indication of the determined trace status. Trace status possibilities include clear, cross-over, and null. A likely number of cross-overs may also be indicated.
    Type: Grant
    Filed: March 15, 2013
    Date of Patent: April 5, 2016
    Inventor: Sreelal Chandrasenan
  • Patent number: 9234582
    Abstract: In one aspect, the disclosure herein provides an apparatus that in one configuration includes a first hydraulic power unit for supplying a first fluid under pressure to a first chamber for controlling motion of a first movable member and a second hydraulic power unit for supplying a second fluid under pressure to a second chamber for controlling motion of a second movable member, an input device configured to provide an input signal for controlling the motions of the first and second movable members and a processor configured to: receive the input signal from the input device; and independently set, in response to the input signal from the input device, a first electrical actuator to control an amount and flow rate of the first fluid to the first hydraulic power unit and a second electrical actuator to control an amount and flow rate of the second fluid to the second hydraulic power unit for controlling the motion of the first and second movable members.
    Type: Grant
    Filed: October 21, 2010
    Date of Patent: January 12, 2016
    Inventor: Anthony R. Smith
  • Patent number: 9209662
    Abstract: A linear motor includes a stator module, a rotor module and an extension rod. The stator module includes a first stator unit and a second stator unit. The first stator unit includes an upper end cap including an upper holder member and an upper bobbin integrally extended from the upper holder member. The second stator unit includes a bottom end cap and a second winding. The bottom end cap includes a bottom holder member and a bottom bobbin connected to the bottom holder member and abutted against the upper bobbin. The rotor module is rotatably mounted in the stator module. The extension rod is linearly movably mounted in the stator module. The upper bobbin is integrally extended from the upper holder member. The fabrication of the linear motor is simple, ensuring a high level of precision.
    Type: Grant
    Filed: March 8, 2013
    Date of Patent: December 8, 2015
    Inventor: Ping-Ju Hsieh
  • Patent number: 9172287
    Abstract: A rotary drive includes: a support structure; and a linear actuator supported by the support structure. The linear actuator includes: a first member; a second member that moves in a linear direction relative to the first member when a drive signal is applied to the linear actuator; and a bearing arrangement supporting the first and second members within the support structure and enabling independent movement of the first member and the second member relative to the support structure. The rotary drive also includes a linear-to-rotary converter to which the second member of the linear actuator is coupled. The linear-to-rotary converter includes an output member having a rotational axis. During operation, the linear-to-rotary converter converts linear reciprocating movement of the second member of the linear actuator to rotary movement of the output member about the rotational axis.
    Type: Grant
    Filed: March 14, 2013
    Date of Patent: October 27, 2015
    Inventors: Timothy A. Fofonoff, Ian W. Hunter
  • Patent number: 9157408
    Abstract: The invention relates to a starter device (10) for cranking an internal combustion machine in a vehicle, having a pinion shaft (202) comprising a cranking pinion (22) at the front end and a pinion shaft (204) at the opposite end, slidingly guided and supported on a drive shaft (44) of the starter device (10) and received in a bearing by a bearing shell (210) of the starter device (10), characterized in that the cranking pinion (22) has a solid lubricant coating (216) at least in the area of the circumferential toothing (143).
    Type: Grant
    Filed: November 17, 2010
    Date of Patent: October 13, 2015
    Assignee: Robert Bosch GmbH
    Inventor: Gerd Dornhoefer
  • Patent number: 9151598
    Abstract: A position measuring device includes a position detection unit, which may be used to process positional signals that result from scanning a code track by a scanning unit, into digital positional values, a first interface unit for the communication with a control unit via a data transmission channel, and a second interface unit for the communication with at least one peripheral unit. The first interface unit is a hard-wired interface, and the second interface unit is a wireless radio interface.
    Type: Grant
    Filed: January 19, 2012
    Date of Patent: October 6, 2015
    Inventor: Marc Tiemann
  • Patent number: 9118221
    Abstract: The present disclosure relates to a magnetic motor including a drive magnet, a motion magnet, and an acceleration field. The drive magnet includes magnetic shielding, typically on a portion thereof, altering the magnetic field of the drive magnet. In some embodiments, the motion magnet has a cross-section that is generally in the shape of a ‘V’ or ‘A’. The acceleration field is created by the interaction between the drive magnet and the motion magnet as the motion magnet is passed through the altered magnetic field of the drive magnet. The altered magnetic field of the drive magnet may often be near a first end of the drive magnet. In further embodiments, the motion magnet can be operably coupled to an output shaft and rotate around the central axis of the output shaft. The present disclosure, also relates to a device, including the magnetic motor, for generating energy from a turbine.
    Type: Grant
    Filed: August 26, 2013
    Date of Patent: August 25, 2015
    Assignee: Future Force, LLC
    Inventor: Mike Tkadlec
  • Patent number: 9071122
    Abstract: A drive unit, which has a first motor and a second motor, for rotationally and linearly moving a working element with respect to a first housing element In order to permit a design and a mounting and to reduce the required axial installation space and cost, the drive unit has bearing arrangement which, in the case of a linear movement of the working element with respect to the first housing element, permits a primary part and a secondary part of the first motor and/or of the second motor to be arranged in an axially non-displaceable fashion.
    Type: Grant
    Filed: July 30, 2009
    Date of Patent: June 30, 2015
    Assignee: Schaeffler Technologies AG & Co. KG
    Inventors: Daniel Neufeld, Guenter Schmid, Ralf Schueler
  • Patent number: 9050907
    Abstract: A rail guide that has at least one rail pair consisting of a floor rail (22) and a seat rail (24). The seat rail (24) has connectors (30) for fastening a seat frame to be arranged above the rail pair. The rails can be moved relative to each other in a longitudinal direction along a movement path (20). The floor rail (22) and the seat rail (24) are curved by the same circular radius of curvature (42) that ranges between 1,500 and 3,000 mm, in particular between 1,800 and 2,500 mm. The center point of curvature (44) is on the side of the rail pair facing away from the seat frame. The rail guide is a longitudinal adjustment device having a stationary spindle (52) and an associated spindle nut (54) that is longitudinally movable thereon, the spindle (52) being curved at the same circular radius of curvature (42). Also described is a suitable method for producing said curved rails by at least one stamping mold (68) or by bending strips (96).
    Type: Grant
    Filed: August 1, 2012
    Date of Patent: June 9, 2015
    Assignee: Johnson Controls Metals and Mechanisms GmbH & Co.
    Inventors: Burckhard Becker, Ingo Kienke, Alexander Balin, Kurt Seibold
  • Patent number: 9046159
    Abstract: An actuating drive for a rail guide of a longitudinal adjustment of a motor vehicle seat has a rotational drive, which has an output shaft (70), and a transmission, which has a spindle nut (54), which is rotationally connected to the output shaft (70) and which has a spindle (52). The spindle (52) has a spindle thread, with which the spindle nut (54) is engaged. The spindle (52) is curved in a circular radius of curvature (42). The radius of curvature (42) is between 1,500 and 3,000 mm. The spindle nut (54) is a straight nut.
    Type: Grant
    Filed: August 1, 2012
    Date of Patent: June 2, 2015
    Assignee: Johnson Controls Metals and Mechanisms GmbH & Co.
    Inventor: Burckhard Becker
  • Patent number: 9035512
    Abstract: At least a rotor fixing portion and a bearing fitting portion are combined to form a hollow rotary shaft. The rotor of a rotary motor portion is fixed on the rotor fixing portion. A thrust radial bearing is fitted on the outer periphery of the bearing fitting portion and a screw nut is fitted to the bearing fitting portion. The rotor fixing portion and the bearing fitting portion are coupled with screw member(s) which are inserted into the hollow rotary shaft from one axial end of the hollow rotary shaft and axially extend inside the bearing fitting portion and the rotor fixing portion. A flange portion of the screw nut is fixed on an abutment portion of the bearing fitting portion in abutment with an end surface of an inner race of the thrust radial bearing that is located on the one axial end side.
    Type: Grant
    Filed: October 26, 2012
    Date of Patent: May 19, 2015
    Assignee: SANYO DENKI CO., LTD.
    Inventors: Masanori Tanaka, Shigenori Miyairi
  • Patent number: 9024491
    Abstract: An electromechanical actuator includes a first system and a second system. The first system includes a first motor and a first movable element capable of being moved back and forth in an axial direction of a rod. The second system includes a second motor and a second movable element capable of being moved back and forth in the axial direction of the rod. The electromechanical actuator is capable of adjusting a stroke length which is a distance between the first driving section set to or in the proximity of an end portion of the first movable element and the second driving section set to or in the proximity of an end portion of the second movable element. The first movable element and second movable element are configured for back and forth movement in the axial direction of the common rod.
    Type: Grant
    Filed: August 15, 2012
    Date of Patent: May 5, 2015
    Assignee: Sinfonia Technology Co., Ltd.
    Inventor: Masaya Wakita
  • Publication number: 20150115778
    Abstract: An integrated actuator drive unit (ADU) assembly for an electric motor actuator is disclosed. The integrated ADU assembly may comprise at least one of an integrally formed ring gear, an integrally formed thrust bearing and integrally formed load cell. The integrated ADU assembly may comprise a portion of an electromechanical actuator. The electromechanical actuator may be utilized for aircraft braking systems.
    Type: Application
    Filed: October 30, 2013
    Publication date: April 30, 2015
  • Publication number: 20150108856
    Abstract: In order to achieve improvement in speed and torque of a rotating electric machine according to an inexpensive, simple, and highly reliable method, Provided is a rotating electric machine including: a stator; a rotor that is rotatably arranged with an intermediation of an air gap in a rotating shaft direction with respect to the stator; and a primary-side mechanism that rotates concentrically with a shaft center of the rotor. The primary-side mechanism includes: a fixed position rotating pulley that is arranged so as to be immovable in the rotating shaft direction; and a variable position rotating pulley that is arranged so as to be movable in the rotating shaft direction with respect to the fixed position rotating pulley. The variable position rotating pulley rotates and moves in an axial direction integrally with the rotor.
    Type: Application
    Filed: October 20, 2014
    Publication date: April 23, 2015
    Inventors: Masafumi SAKAMOTO, Shigeyoshi SATO, Shunsuke TAKEGUCHI
  • Publication number: 20150097455
    Abstract: An electromechanical actuator is provided whose structure is simplified and made small, and with which an output portion can be driven even if a jammed state occurs in a screw mechanism. An electromechanical actuator is configured that includes an electric motor having a first rotor portion and a second rotor portion capable of relative rotation with respect to each other, and a jam relief mechanism having a first conversion portion having a first screw mechanism capable of converting rotational force of the first rotor portion into thrust force and moving an output portion back and forth, a sliding support mechanism which can transmit the rotational force of the first rotor portion to the first conversion portion, and a second conversion portion having a second screw mechanism which moves the output portion back and forth together with the first conversion portion.
    Type: Application
    Filed: October 1, 2014
    Publication date: April 9, 2015
    Inventors: Masayoshi UEYAMA, Ryoichi HIGUCHI
  • Publication number: 20150092361
    Abstract: A variable display device includes a display panel; a joint plate installed at a rear surface of the display panel and including a plurality of plates each configured to be rotated by a hinge; and a driving system installed at a rear surface of the joint plate and rotating the plurality of plates with respect to a normal direction to the joint plate, wherein the display panel is variably driven in a flat mode having a flat surface or a curved mode having a curved surface by the joint plate and the driving system.
    Type: Application
    Filed: December 23, 2013
    Publication date: April 2, 2015
    Applicant: LG Display Co., Ltd.
    Inventors: Seok-Hyo CHO, Hyun-Yong UHM
  • Patent number: 8978379
    Abstract: The base of an actuator housing 10 is arranged to face the side of a turbine housing, and a motor 16 is fixed to a motor support post that is protrusively provided toward the top of the actuator housing 10 such that the motor 16 is kept at a distance from the turbine housing.
    Type: Grant
    Filed: August 20, 2010
    Date of Patent: March 17, 2015
    Assignee: Mitsubishi Electric Corporation
    Inventor: Takashi Gotoh
  • Publication number: 20150069869
    Abstract: The invention relates to a drive device for a hatch of a motor vehicle, wherein the drive device comprises two drive sections that are linearly moveable relative to each other between a retracted position and an extended position, wherein the drive sections are spring biased against each other into the extended position by a spring arrangement, wherein an end stop is provided to limit the drive motion between the drive sections to the extended position. It is proposed that the end stop comprises a damping arrangement with a deformation zone, wherein during a drive motion into the end stop, depending on the speed of the drive motion, the damping arrangement damps the drive motion mainly based on plastic deformation of the deformation zone.
    Type: Application
    Filed: September 6, 2013
    Publication date: March 12, 2015
    Inventors: Linda Loeffler, Sebastian Heinze, Alwin Macht
  • Publication number: 20150031037
    Abstract: In some aspects, the present disclosure provides a magnetic rack comprising a lateral movement structure and/or a longitudinal movement structure. In particular embodiments, the lateral movement structure and/or longitudinal movement structure move one or more magnets to or away from a reaction tube, in order to control the magnetic forces exerted on microbeads in the reaction tube. The microbeads are attracted onto the reaction tube wall, thereby facilitating separation of the microbeads from a solution in the tube. In particular embodiments, the magnetic rack is used to extract or purify nucleic acid from a sample.
    Type: Application
    Filed: July 24, 2014
    Publication date: January 29, 2015
    Inventors: Hang LI, Jinglin ZHOU, Dong WANG
  • Publication number: 20150015104
    Abstract: An actuator, a stator, a motor, a rotational-to-linear motion conversion mechanism, and a linear actuator are provided. The motor, the actuator, and the linear actuator at least include a screw shaft and a nut. The screw shaft is a rod-like member, and at least a part of the surface of the screw shaft has a thread. The nut is screwed onto the thread on the screw shaft, and moves the screw shaft in a linear motion direction that is a direction in parallel with a rotational center. The stator, the motor, the actuator, and the linear actuator can at least convert a rotational motion into a linear motion.
    Type: Application
    Filed: June 12, 2012
    Publication date: January 15, 2015
    Applicant: NSK LTD.
    Inventors: Takashi Kataoka, Yusuke Ota, Toshifumi Taguchi, Hayao Watanabe
  • Patent number: 8914179
    Abstract: During an inertial energy storage operation, electric power conversion at an inverter is controlled such that a direct current electric power from an electric power storage device is converted into an alternating current by the inverter so as to be supplied to stator windings, such that torque in the direction of engine rotation is applied to an output side rotor from a stator to rotatively drive the output side rotor in a state where power transmission from the output side rotor to a drive axle is stopped. During a cranking operation after the inertial energy storage operation, the electric power conversion at an inverter is controlled to permit application of the alternating current to rotor windings, such that a torque in the direction of engine rotation is applied to an input side rotor from the output side rotor, thereby rotatively driving an input side rotor to crank the engine.
    Type: Grant
    Filed: March 27, 2012
    Date of Patent: December 16, 2014
    Assignees: Kabushiki Kaisha Toyota Chuo Kenkyusho, Toyota Jidosha Kabushiki Kaisha, Aisin Seiki Kabushiki Kaisha
    Inventors: Eiji Tsuchiya, Takao Watanabe, Shu Asami, Tatsuya Miyano, Akira Murakami, Hiroyuki Ogawa, Tomoyuki Toyama
  • Patent number: 8910720
    Abstract: A downhole tool for positioning in a wellbore comprises a tool main body, an electric motor disposed within the tool main body, the motor comprising a rotor rotatably attached to a stator, and a linear actuator assembly disposed within the motor for transforming a rotary output of the motor into a linear displacement.
    Type: Grant
    Filed: June 22, 2010
    Date of Patent: December 16, 2014
    Assignee: Schlumberger Technology Corporation
    Inventors: Franz Aguirre, Wade D. Dupree, Mark Holly, Derek Copold
  • Publication number: 20140354096
    Abstract: An electromechanical actuator device (17) and method for use under water in petroleum activity, in which, via a transmission element (30, 34, 36), an electric motor (18), including a stator (20) and a rotor (22), is arranged to move an actuation element (36) between at least a first position and a second position, and in which the rotor (22) of the electric motor (18) surrounds and is connected to an actuator nut (30) which is in threaded engagement with the actuation element (36).
    Type: Application
    Filed: February 7, 2013
    Publication date: December 4, 2014
    Inventor: Egil Eriksen
  • Patent number: 8899120
    Abstract: A linear actuator is provided which includes a motor and a screw as an output shaft and in which the rotational movement of the motor is converted into the linear movement of the screw, wherein at least one retainer to hold a plurality of balls is disposed at the inner periphery of a hollow rotor of the motor, a ball screw is formed at the outer periphery of the screw, the balls are engaged with the ball screw such that the screw is set coaxial to the rotor, and wherein the screw provided with the ball screw is moved linearly by means of the rotation of the balls disposed circumferentially at the inner periphery of the rotor.
    Type: Grant
    Filed: February 14, 2012
    Date of Patent: December 2, 2014
    Assignee: Minebea Co., Ltd.
    Inventors: Manabu Nakamura, Masahiro Kobayashi
  • Patent number: 8878466
    Abstract: An electro-mechanical linear actuator unit comprising an actuator housing that accommodates at least two electric drives, each of which, when actuated by a control device, sets an associated drive of a respective spindle drive into rotation for adjusting linear movement of the associated spindle drive in order to produce relative linear adjustment of a control rod. The two electric drives are located in the actuator housing in such manner that relative adjustment can be produced by simultaneous actuation of the two electric drives, as the sum of the adjustment movements of the associated spindle drives, or by actuating a single electric drive, as the adjustment movement of the associated spindle drive. A respective brake is provided, in an area of each of the two electric drives, which can be selectively actuated by the control device to then prevent the adjustment movement of the respective associated spindle drive.
    Type: Grant
    Filed: June 30, 2010
    Date of Patent: November 4, 2014
    Assignee: ZF Friedrichshafen AG
    Inventors: Andre Hausberg, Carsten Wintjen, Werner Pfluegen
  • Publication number: 20140319976
    Abstract: Hobby servo motor linear actuator systems are provided. In certain circumstances, a linear actuator system includes a lead screw attachment mechanism and a lead nut. The lead screw attachment mechanism is configured to be rotatably connected to an output shaft of a hobby servo motor assembly. The lead nut is configured to move linearly along the lead screw attachment mechanism as it is rotated. The system is optionally either open-looped or closed-loop. The lead screw attachment mechanism has an outer surface that can include multiple different types of threads such as, but not limited to, gear teeth and screw threads. The hobby servo motor assembly may include one hobby servo motor or multiple hobby servo motors that work together.
    Type: Application
    Filed: June 11, 2014
    Publication date: October 30, 2014
    Inventor: Brian T. Pettey
  • Publication number: 20140312725
    Abstract: An electric linear drive, in particular for adjusting moveably mounted parts of furniture used for sitting or lying down, includes a drive motor, a threaded spindle, a speed reduction gear arranged between the drive motor and the threaded spindle, a spindle nut placed on the threaded spindle, which can be selectively locked in the direction of rotation and, depending on the direction of rotation of the threaded spindle, moved in the axial direction of the threaded spindle. The linear drive has a lifting element for adjusting the moveable furniture parts, the lifting element being driven by axial movement of the spindle nut. Simple design, easy assembly and operation, and robust mounting of the driving parts are achieved.
    Type: Application
    Filed: November 6, 2012
    Publication date: October 23, 2014
    Inventor: Andreas Oberndorfer
  • Publication number: 20140300228
    Abstract: A linear actuator with an electric drive device includes a stator and a rotor, wherein the stator is arranged in a fixed location in a drive housing and the rotor is mounted for rotary motion relative to the stator and with a transmission arrangement which is arranged coaxial with an axis of rotation of the drive device to convert the rotary movement of the rotor into a linear movement, wherein a threaded spindle of the transmission arrangement is non-rotatably connected to the rotor and positively coupled to a spindle nut slidably accommodated in the drive housing and connected to a torque tube, wherein bearing means for a rotatable mounting of the rotor are provided in opposite end regions of the drive housing.
    Type: Application
    Filed: April 4, 2014
    Publication date: October 9, 2014
    Applicant: FESTO AG & Co. KG
    Inventors: Martin Rapp, Erwin Bezjak
  • Publication number: 20140292126
    Abstract: A rotational-linear motion converter includes a cylindrical magnet rotor, a linear rail, a teeth row, and a magnet row. The magnet rotor includes a magnet row magnetized in a radial direction of the magnet rotor. The rail includes a plurality of projecting portions and recessed portions. The teeth row includes teeth and allows a magnetic flux flowing from the magnet row of the magnet rotor to pass between the magnet rotor and the rail. The magnet row includes magnets and is magnetized in an extending direction of the rail in order to align the magnetic flux flowing from the magnet row of the magnet rotor toward the projecting portions and the recessed portions of the rail. In the magnet row magnetized in the extending direction of the rail, the same polarity faces of adjacent magnets oppose each other in the extending direction of the rail.
    Type: Application
    Filed: April 1, 2014
    Publication date: October 2, 2014
    Applicant: SANYO DENKI CO., LTD.
    Inventors: SATOSHI SUGITA, Yuqi Tang, Yasushi Misawa, Shigenori Miyairi
  • Patent number: 8829750
    Abstract: The invention relates to an electric motor/gear mechanism unit including a housing, an iron-free rotor winding rotatably arranged in the interior of the housing, a collector connected to the rotor winding, a rotor shaft extending through the collector, and a gear mechanism which is connected to the rotor shaft and which has an output shaft. The present invention is so conceived that the gear mechanism is produced from a non-magnetic material and arranged in the interior of the rotor winding.
    Type: Grant
    Filed: November 30, 2009
    Date of Patent: September 9, 2014
    Assignee: maxon motor ag
    Inventors: Daniel Sherwin, Hugo Fritschy, Franzxaver Fölmli, Jens Oliver Schulze, Raniero Pittini, Dirk Zimmermann
  • Patent number: 8823229
    Abstract: A linear actuator is provided that includes a housing having an input member supported for rotation therein. An output member travels linearly along the input member when the input member is rotated relative to the output member. A guide rail extends along an inner surface of the housing. The output member engages the guide rail to prevent rotation of the output member.
    Type: Grant
    Filed: June 3, 2011
    Date of Patent: September 2, 2014
    Assignee: Aries Engineering Company, Inc.
    Inventor: Todd M. Brieschke
  • Patent number: 8810093
    Abstract: An actuating device for a heating element valve has a drive motor with a motor shaft, an actuator, and a rotation-linear conversion drive. The conversion drive is coupled on the drive side to the motor shaft and on the output side to the actuator and converts a rotational movement of the motor shaft into a linear movement of the actuator. The rotation-linear conversion drive further has a cam disc on the output side which is provided on its outer circumferential periphery with a plurality of step segments each having a substantially constant distance from the axis of the cam disc. The step segments are connected via connecting segments with a variable axle spacing.
    Type: Grant
    Filed: June 20, 2011
    Date of Patent: August 19, 2014
    Assignee: Diehl AKO Stiftung & Co. KG
    Inventors: Tobias Neugebauer, Werner Kaps
  • Patent number: 8772991
    Abstract: An object of the present invention is to maintain a predetermined positional relationship between an outer pin holder and a housing in a speed reducer section B, to prevent damage to such components as revolving members, outer circumferential engagers, and motion conversion mechanism upon a large axial load due to turning or sudden acceleration/deceleration, and to eliminate rattling noise caused by a housing and the outer pin holder. An elastic member is disposed on one or both axial end surfaces of the outer pin holder, between the outer pin holder and the housing. As a result, even if there is an axial load exerted on the outer pin holder, the outer pin holder is always held at a predetermined position by restoring force from the elastic member(s), in a proper positional relationship with the housing.
    Type: Grant
    Filed: February 2, 2011
    Date of Patent: July 8, 2014
    Assignee: NTN Corporation
    Inventors: Tetsuya Yamamoto, Tomoaki Makino
  • Patent number: 8766752
    Abstract: A drive train is used at least including an input shaft and an output shaft. A clutch member is rotatable by a clutch shaft about an axis of rotation. The clutch shaft is supported for lateral movement along the axis of rotation to move the clutch member to cooperate with the drive train at a first lateral position to cause the output shaft to turn and to move the clutch member to a second lateral position to disengage the output shaft from rotation of the input shaft. A permanent magnet is supported by one end of the clutch shaft and arranged for receiving an external magnetic biasing force along the axis of rotation to selectively move the clutch member between the first and second lateral positions. A traveling shaft can be used to support a selected gear for movement by the permanent magnet to implement transmission and reversing configurations.
    Type: Grant
    Filed: February 7, 2013
    Date of Patent: July 1, 2014
    Assignee: Merlin Technology Inc.
    Inventor: John E. Mercer
  • Patent number: 8760030
    Abstract: This motor/generator produces rotational torque and/or electrical energy employing a flexible magnetically permeable circular band as a rotor that in operation is in physical contact with the stator, arching and curving forward in response to advancing magnetic fields along the stator surface. The stator may be comprised of either a typical three-phase winding, or a series of magnetic actuators arranged in a toroid for which the rotor band acts as a continuous armature. The rotor rotates as follows: an actuator to the left or right of an active actuator is activated to pull a rotor arch down to the stator surface; as this occurs, the previously active actuator is turned off and that part of the rotor springs away; the rotor moves clockwise or counterclockwise as the arches of the rotor are advanced forward or backward, respectively. Differential rotor movement provides speed reduction and torque enhancement without gears.
    Type: Grant
    Filed: June 2, 2011
    Date of Patent: June 24, 2014
    Inventors: David A. Ross, Emik A. Avakian
  • Patent number: 8760020
    Abstract: An oscillator typically includes several rotatable drive magnets and pivotable oscillating arms having respective follower magnets so that the drive magnets drive movement of the follower magnets to pivot the arms back and forth in an oscillating manner. A generating magnet or electrically conductive member may be mounted on each oscillating arm for producing an electric current in the electrically conductive member. Repelling magnets may be mounted on the oscillating arms with respective repelling magnets positioned to repel the first repelling magnet to limit pivotal travel of the oscillating arm.
    Type: Grant
    Filed: March 8, 2011
    Date of Patent: June 24, 2014
    Inventor: Michael J. Froelich
  • Publication number: 20140167539
    Abstract: A linear actuator has a stator with two stator coils and pole plates forming stator poles. A rotor is rotatably mounted to interact with the stator poles. The rotor has a hollow cup shaped permanent magnet fitted to a screw shaft. An output shaft, which is co-axial with the rotor, is driven by the rotor through a screw connection. The rotor is supported by a single rotary bearing located within the magnet, axially between axial ends of the permanent magnet.
    Type: Application
    Filed: December 6, 2013
    Publication date: June 19, 2014
    Applicant: Johnson Electric S.A.
    Inventors: Bruno Neuhaus, Michael Watzek, Miha Furlan