Torque Transmitted Via Intermediate Element Patents (Class 464/147)
  • Patent number: 10323470
    Abstract: The disclosure describes a constant velocity joint assembly for use in transmitting torque. The constant velocity joint assembly includes members that are connected in series via tongue-and-groove connections in a swivel joint pattern that allows for transferring torque between two skew lines, and further provide freedom of movement such that rotation about one longitudinal axis can be transformed into rotation about another longitudinal axis that is not aligned with the first longitudinal axis. Thus, the members of the constant velocity joint assembly do not necessarily need to share a common longitudinal axis.
    Type: Grant
    Filed: December 30, 2014
    Date of Patent: June 18, 2019
    Assignee: Halliburton Energy Services, Inc.
    Inventor: Hamid SadAbadi
  • Patent number: 10316895
    Abstract: A universal joint assembled to a drill string transfers torque and axial force between two components where the shafts of the components are not completely aligned. The universal joint includes end members connected to opposite ends of a cable for connecting to components of the drill string. As the joint rotates the cable flexes to accommodate misalignment between the connected drill string components.
    Type: Grant
    Filed: June 28, 2016
    Date of Patent: June 11, 2019
    Assignee: Ulterra Drilling Technologies, L.P.
    Inventors: Justin S. McMillan, Christopher M. Casad, Beau J. St. Pierre, Carl Aron Deen
  • Patent number: 9586609
    Abstract: A vehicle steering column includes first and second shaft parts respectively coupled to an intermediate piece via first and second joint disks. The joint disks are configured such that when the steering column is in an uninstalled state, the first and second shafts are substantially coaxial, and when the steering column is in an installed state, the first and second shafts form a non-zero inclination angle via elastic deformation at the joint disks.
    Type: Grant
    Filed: February 6, 2015
    Date of Patent: March 7, 2017
    Assignee: Bayerische Motoren Werke Aktiengesellschaft
    Inventors: Martin Linke, Matthias Schoelzel
  • Patent number: 9309720
    Abstract: A drilling apparatus includes a housing that defines a longitudinal axis. A power section of the apparatus includes rotor adapted to move with eccentric rotary motion with respect to the longitudinal axis in response to the passage of drilling fluids through the power section. A power transmission shaft has an upper end coupled to the rotor and movable with the eccentric motion of the rotor, and a lower end constrained to rotate in a concentric manner with respect to the longitudinal axis. A generally rigid torsion rod has upper and lower ends constrained to rotate in a concentric manner, and the upper end of the torsion rod is coupled to the lower end of the power transmission shaft. A mandrel including a connection for a drill bit is interconnected with the lower end of the torsion rod such that a torque may be transmitted from the torsion rod to the mandrel to drive a drill bit.
    Type: Grant
    Filed: November 9, 2012
    Date of Patent: April 12, 2016
    Assignee: SCIENTIFIC DRILLING INTERNATIONAL, INC.
    Inventors: Douglas Baugher, Mark Chustz, Joe Rivas
  • Patent number: 9211135
    Abstract: An endoscopic instrument includes a rigid hollow shank (2) and a tool (8) at the distal instrument end. The tool (8) is driven in rotation via a drive shaft (14), which is guided within the hollow shank (2). At the distal end of the hollow shank (2), the tool (8) projects out of the hollow shank (2), where it may be angled with respect to the distal end of the hollow shank (2).
    Type: Grant
    Filed: July 18, 2008
    Date of Patent: December 15, 2015
    Assignee: Richard Wolf GmbH
    Inventors: Eberhard Körner, Franc Schmid, Stephan Prestel
  • Publication number: 20150136901
    Abstract: An apparatus comprising a drivelink comprising a housing including a socket, wherein the socket comprises a cross-sectional area, and a bearing cartridge disposed within the socket, wherein a cross-sectional area of the cartridge is less than the cross-sectional area of the socket. An apparatus comprising a drivelink comprising a housing having a socket, and a bearing cartridge positioned within the socket and comprising a first portion and a second portion, wherein the first portion is configured to undergo compression when a load is applied to the drivelink, and wherein the second portion is configured to not be in tension when the load is applied to the drivelink.
    Type: Application
    Filed: January 16, 2015
    Publication date: May 21, 2015
    Inventors: Emily Schofield, Chad Jarrett, Dan Sottiaux, Frank B. Stamps
  • Publication number: 20150094157
    Abstract: A rotational connector device is disclosed which incorporates a housing that is attached to a first shaft and an inner member that is disposed within the housing and connected to a second shaft. The first and second shaft may be at skewed angles with respect to each other. The housing and the inner member are slidably and rotationally connected to each other by way of a washer and pin to provide one-to-one rotational motion between the first and second shafts.
    Type: Application
    Filed: March 13, 2014
    Publication date: April 2, 2015
    Inventor: KENNETH A. LOCK
  • Patent number: 8944926
    Abstract: A transmission device for transmitting a force and a torque between a handling device and a tool of a medical instrument includes transmission members interconnected in a hinged manner. A convex coupling portion of a first transmission member is in each case held interlockingly in a concave coupling portion of an adjacent second transmission member in such a way that a rotation of the first transmission member about its longitudinal axis causes a rotation of the second transmission member about its longitudinal axis. A convex coupling portion of a first transmission member is in each case held interlockingly in a concave coupling portion of an adjacent second transmission member in such a way that a tensile force can be transmitted between the first transmission member and the second transmission member.
    Type: Grant
    Filed: June 10, 2013
    Date of Patent: February 3, 2015
    Assignee: Karl Storz GmbH & Co. KG
    Inventors: Claus Kramer, Jochen Stefan
  • Publication number: 20140335964
    Abstract: A mud motor universal joint assembly includes a pair of cylindrical drivers and a cylindrical driven member. Each drive member is configured to attach to a drive unit at one end, and to a driven member at second ends through interlocking tangs. Each cylindrical drive member has an internal blind tapered bore within the interlocking tang portion containing a hard cylindrical load bearing member. The assembly is connected by hardened cylindrical rod members inserted into the internal blind tapered bores of each drive member and retained therein by a plurality of balls in recesses. The drive members, connecting rods, and bearing members may be surface hardened to improve wear. Tang portions may include cavities with rubber inserts therein to reduce slack and slapping during use down hole.
    Type: Application
    Filed: May 10, 2013
    Publication date: November 13, 2014
    Applicant: Renegade Manufacturing, LLC
    Inventors: Jamie Leger, Scott Kerstetter
  • Publication number: 20140274427
    Abstract: An apparatus comprising a rotor hub system comprising a floating plate, a plurality of drive link trunnions each comprising a pivoting arm and positioned radially about the floating plate, wherein each drive link trunnion is coupled to the floating plate via the pivoting arm, and a housing disposed about the floating plate, coupled to each of the drive link trunnions, and configured to couple to a mast. Included is an apparatus comprising a floating plate, a plurality of drive link trunnions each comprising a pivoting arm and positioned radially about the floating plate, wherein each drive link trunnion is coupled to the floating plate via the pivoting arm, and wherein the drive link trunnions are configured to move the floating plate in response to a force applied to the drive link trunnions, and a housing disposed about the floating plate and coupled to each of the drive link trunnions.
    Type: Application
    Filed: March 14, 2013
    Publication date: September 18, 2014
    Applicant: BELL HELICOPTER TEXTRON INC.
    Inventors: Christopher Foskey, Frank B. Stamps, Richard Rauber
  • Publication number: 20140274426
    Abstract: A universal coupling is provided that aims to achieve constant velocity between the input and output shafts. The universal coupling also aims to increase the angle between input and output shafts over conventional double Cardan joints while maintaining constant velocity or near constant velocity therebetween. The universal coupling can employ a Sarrus type linkage in-between two universal joints of the Cardan type in a configuration that aims to achieve joint angles up to and including 90 degrees in the Y-Z plane, while maintaining constant velocity or near constant velocity therebetween.
    Type: Application
    Filed: March 15, 2013
    Publication date: September 18, 2014
    Applicant: PACCAR Inc
    Inventor: Gerald J. Angelo
  • Patent number: 8763490
    Abstract: A spherical transmission joint has an input shaft connected to a driving source to rotate, an input link fixed to the input shaft to be rotated by the input shaft and having a bent shape, a coupler link rotatably mounted to a first rotary shaft mounted to the input link and having a bent shape, an output link rotatably mounted to a second rotary shaft mounted to the coupler link and having a bent shape, and an output shaft fixed to the output link. This spherical transmission joint for rotating power transmission of inclined shafts is widely used for transmission joints with certain gradients since a rotating angle between an input shaft and an output shaft is ranged wide.
    Type: Grant
    Filed: June 11, 2012
    Date of Patent: July 1, 2014
    Assignee: Korea Institute of Science and Technology
    Inventors: Keehoon Kim, Manbok Hong
  • Publication number: 20140174242
    Abstract: In a steering system that includes: an intermediate shaft on a steering wheel side; a pinion shaft on a steered wheel side; and a cross joint by which the intermediate shaft and the pinion shaft are rotatably connected to each other on a plane intersecting with each of the shafts, and that steers steered wheels by transmitting steering torque of a steering wheel from the intermediate shaft to the pinion shaft, a weakened portion is formed in a joint spider of the cross joint. The weakened portion can be identified in advance as a portion that breaks first. This makes it possible to realize a failure mode in which a vehicle is able to run by itself for a certain period of time after a failure.
    Type: Application
    Filed: August 27, 2012
    Publication date: June 26, 2014
    Applicant: JTEKT CORPORATION
    Inventor: Takeshi Koyama
  • Publication number: 20140179448
    Abstract: A downhole submersible pumping system includes an adapter for use in connecting a first component to a second component within the downhole pumping system. The adapter preferably includes an upstream section configured for connection to the first component and a downstream section configured for connection to the second component. The adapter further includes an articulating joint that permits the angular movement of the first component with respect to the second component.
    Type: Application
    Filed: December 26, 2012
    Publication date: June 26, 2014
    Applicant: GE Oil & Gas ESP, Inc.
    Inventors: Charles Collins, Aaron Noakes
  • Publication number: 20140148787
    Abstract: Torque shafts and other related systems and methods are described herein. In one embodiment, the torque shafts are both flexible and capable of transmitting torque. An apparatus for transmission of torque includes an elongate body, comprising a plurality of joint segments, each joint segment configured to pivot with respect to an adjacent segment and being further configured to have at least two link elements.
    Type: Application
    Filed: April 11, 2013
    Publication date: May 29, 2014
    Inventor: AORTX, INC.
  • Publication number: 20130306801
    Abstract: An airfoil surface control system includes a movable surface. An actuator is coupled to the surface. The airfoil surface control system includes a motor. A torque tube assembly operatively couples the motor and actuator and includes first and second shafts coupled by a universal joint. The universal joint is configured to provide a first maximum angle between the first and second shafts. A stop is configured to provide a second maximum angle between the first and second shafts that is less than the first maximum angle.
    Type: Application
    Filed: May 15, 2012
    Publication date: November 21, 2013
    Inventor: David G. Hill
  • Patent number: 8523140
    Abstract: A torque limiting device with an override mechanism coupled to a valve assembly capable of limiting the torque applied to the valve assembly and selectively being overridden to permit the application of excessive torque to the valve assembly. Tattletale devices capable of indicating when an override mechanism has been activated can also be integrated with the torque limiting device.
    Type: Grant
    Filed: September 11, 2012
    Date of Patent: September 3, 2013
    Assignee: Flowserve Management Company
    Inventors: William T. Dolenti, Byron A. Fleury, William C. Hooss, Daniel J. Morris
  • Patent number: 8506413
    Abstract: A rotary connector, comprises an annular rotary body inserted outside a steering shaft and integrally rotated with a steering wheel, a rotator of a steering angle sensor inserted outside the steering shaft; and a tubular joint inserted outside the steering shaft and connecting the rotary body to the rotator; wherein the rotary body and the joint are connected together by a first universal joint, and the joint and the rotator are connected together by a second universal joint.
    Type: Grant
    Filed: January 27, 2010
    Date of Patent: August 13, 2013
    Assignee: Yazaki Corporation
    Inventors: Norihito Suzuki, Hideki Adachi, Tsutomu Sawada
  • Publication number: 20130203510
    Abstract: A constant velocity joint that enables a wide continuous range of shaft angles, being robust throughout this range. It reduces the inertia torque loads on the shafts. The best efficiency, and the least wear, is with the shafts at a straight line. It fits even to driveshafts of cars wherein the maximum angle is near 50 degrees.
    Type: Application
    Filed: January 21, 2013
    Publication date: August 8, 2013
    Inventors: Manousos Pattakos, John Pattakos, Emmanouel Pattakos
  • Patent number: 8457821
    Abstract: An apparatus is provided in one example embodiment and includes a power management module configured to receive data associated with travel being proposed by an end user of an electric vehicle. The power management module is configured to suggest a starting time for the travel based on time of use (ToU) rates for electricity consumption and a current level of power in the electric vehicle. In more specific embodiments, the data associated with the travel includes a starting location, an ending location, and a proposed drive time. In other embodiments, the power management module is further configured to interface with a mapping tool in suggesting the starting time for the end user. The power management module can be configured to obtain the ToU rates from a utility, and the ToU rates are provided as a function of time.
    Type: Grant
    Filed: April 7, 2009
    Date of Patent: June 4, 2013
    Assignee: Cisco Technology, Inc.
    Inventor: Shmuel Shaffer
  • Publication number: 20130123028
    Abstract: A robot arm assembly includes a plurality of driving members, a first transmission mechanism, a second transmission mechanism, and a third transmission mechanism. The first transmission mechanism includes a first rotating shaft, and a second rotating shaft. One end of the first rotating shaft is connected to the first driving member by the connecting member, the other end of the first rotating shaft is movably connected to the second rotating shaft, and the first driving member drives the first rotating shaft to rotate a predetermined number of degrees. The second and third transmission mechanisms include several connecting members and jointing members, transmission members and shafts, and gear wheels.
    Type: Application
    Filed: October 15, 2012
    Publication date: May 16, 2013
    Inventor: BO LONG
  • Publication number: 20130102398
    Abstract: A spherical transmission joint has an input shaft connected to a driving source to rotate, an input link fixed to the input shaft to be rotated by the input shaft and having a bent shape, a coupler link rotatably mounted to a first rotary shaft mounted to the input link and having a bent shape, an output link rotatably mounted to a second rotary shaft mounted to the coupler link and having a bent shape, and an output shaft fixed to the output link. This spherical transmission joint for rotating power transmission of inclined shafts is widely used for transmission joints with certain gradients since a rotating angle between an input shaft and an output shaft is ranged wide.
    Type: Application
    Filed: June 11, 2012
    Publication date: April 25, 2013
    Inventors: Keehoon KIM, Manbok HONG
  • Publication number: 20120329566
    Abstract: A power transmission device for a four-wheel drive vehicle includes an input shaft adapted to be driven by a power source. A first output shaft is rotatable about a first axis and adapted to transmit torque to a first driveline. A second output shaft is adapted to transmit torque to a second driveline and is rotatable about a second axis. The first and second axes diverge from one another. A transfer unit includes a drive member rotatably supported on the first output shaft and a driven member coupled to the second output shaft. A joint is positioned within a cavity formed in the driven member and drivingly interconnects the driven member and the second output shaft. The driven member includes first and second portions separable from and re-mountable to each other to allow service to the joint.
    Type: Application
    Filed: September 4, 2012
    Publication date: December 27, 2012
    Applicant: MAGNA POWERTRAIN OF AMERICA, INC.
    Inventors: Carl F. Stephens, William A. Hellinger, Dale R. Fine
  • Patent number: 8262059
    Abstract: A torque limiting device with an override mechanism coupled to a valve assembly capable of limiting the torque applied to the valve assembly and selectively being overridden to permit the application of excessive torque to the valve assembly. Tattletale devices capable of indicating when an override mechanism has been activated can also be integrated with the torque limiting device.
    Type: Grant
    Filed: May 4, 2006
    Date of Patent: September 11, 2012
    Assignee: Flowserve Management Company
    Inventors: William T. Dolenti, Byron A. Fleury, William C. Hooss, Daniel J. Morris
  • Publication number: 20120214604
    Abstract: An outer race assembly for a constant velocity joint is disclosed. The outer race assembly may include an outer race defining a plurality of tracks and a piston selectively moveable along the tracks of the outer race. The outer race assembly may further include a seal disposed about the piston and abutting the outer race about substantially an entire perimeter of the piston. The seal thereby generally seals an interface between the piston and the outer race.
    Type: Application
    Filed: October 21, 2009
    Publication date: August 23, 2012
    Inventors: Robert L. Cassell, David G. Sasseen
  • Publication number: 20120094775
    Abstract: The various embodiments herein provide a constant speed universal mechanical joint mechanism with crossover angle up to 90 degrees and more. The universal mechanical joint comprises an input coupling, an output coupling, at least one input shaft, at least one output shaft, a plurality of guide arms, at least three connecting arms, a plurality of connecting means, a plurality of external retaining rings and a plurality of bearings. The input coupling is connected to the input shaft and the output coupling is connected to the output shaft in such a way that the plurality of retaining rings joins each of the input coupling and the output coupling with the plurality of guide arms and the plurality of connecting means. The plurality of retaining rings and the plurality of bearings are used to connect each of the plurality of guide arms to the at least three connecting arms.
    Type: Application
    Filed: October 18, 2010
    Publication date: April 19, 2012
    Inventors: Majid Yaghoubi, Sayed Saeid Mohtasebi, Ali Jafari
  • Patent number: 7801657
    Abstract: A control system for a vehicle having first and second wheels is provided that includes a differential apparatus adapted to distribute torque between the first and second wheels and a traction controller for controlling operation of the differential apparatus from vehicle launch up to a predetermined vehicle speed. The traction controller is configured to engage the differential apparatus in a first operating state according to at least one vehicle operating parameter indicative of a low traction operating condition and to further control engagement of the differential apparatus in a second vehicle operating state during the low traction operating condition according to a difference between an actual vehicle yaw rate and a predetermined target vehicle yaw rate. The control system also includes a stability controller for controlling engagement of the differential apparatus at or above the predetermined vehicle speed.
    Type: Grant
    Filed: February 2, 2007
    Date of Patent: September 21, 2010
    Assignee: Eaton Corporation
    Inventors: Damrongrit Piyabongkarn, Jae Y. Lew, John A. Grogg, Robert J. Kyle
  • Publication number: 20100087260
    Abstract: An Oldham-style coupling assembly wherein a driving shaft (12) is rotatably coupled to a driven shaft (32) using a reduced-lash flexible coupling assembly. The coupling assembly includes an intermediate coupling plate (38) stationed between the driven (32) and driving (12) shafts. A driven lug (34) associated with the driven shaft (32) has tapered contact faces (36) and engages a driving slot (40) in the center of the coupling plate (38). Likewise, a pair of diametrically opposed half-lugs (18) associated with the driving shaft (12) engage in respective half slots (42) through a similar tapered interface. Springs (28) backing each of the half lugs (18) establish a continuous axial compression force within the coupling plate (38) to urge seating of the tapered interfaces but without frustrating transverse sliding in the respective slots (40, 42), thereby taking up lash from the system. The lugs (18, 34) are oriented perpendicular relative to each other, so as to simulate a traditional Oldham-style coupling.
    Type: Application
    Filed: October 3, 2008
    Publication date: April 8, 2010
    Applicant: Ford Global Technologies, LLC
    Inventors: Cliff Maki, Alvin Henry Berger
  • Publication number: 20090305796
    Abstract: An internal combustion engine crankshaft assembly includes a crankshaft having an output device, such as a flywheel or crankshaft damper, fastened to the crankshaft. An electronic engine control device is positioned between the crankshaft and the output device. The electronic engine control device includes a generally planar base which contacts both the output device and the crankshaft. The planar base is coated with a pressure-responsive friction-promoting material which causes the output device be torsionally locked with respect to the crankshaft.
    Type: Application
    Filed: June 5, 2008
    Publication date: December 10, 2009
    Inventors: Leon A. Widdall, Rick L. Williams, Patrick B. Morgan
  • Patent number: 7563413
    Abstract: The invention provides a compressor for use as a secondary compressor for an ethylene polymerization tubular reactor comprising a motor and at least two compressor frames, at least one of the compressor frames being coupled to the motor by means of a contoured diaphragm flexible coupling.
    Type: Grant
    Filed: July 5, 2006
    Date of Patent: July 21, 2009
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Jan J. Naets, Philip H. Cornelissen, Christopher K. Morgan
  • Patent number: 7559710
    Abstract: A rotary-torque adjuster that adjusts rotary torque of a rotational member includes a rotary shaft, the rotational member secured to the rotary shaft and rotating integrally with the rotary shaft, a plurality of clutch disks rotatably attached to the rotary shaft, a driver that drives the clutch disks, a plurality of presser components attached to the rotary shaft and rotating integrally with the rotary shaft, the presser components sandwiching opposite surfaces of the clutch disks by a predetermined pressure, and a drive transmission unit that makes a selection from among the plurality of clutch disks so as to transmit a driving force from the driver to the selected one or more clutch disks. The drive transmission unit changes the selection of the clutch disks to which the driving force from the driver is to be transmitted so as to change the rotary torque of the rotational member.
    Type: Grant
    Filed: March 23, 2006
    Date of Patent: July 14, 2009
    Assignee: Sony Corporation
    Inventor: Katsuhisa Ono
  • Publication number: 20090087254
    Abstract: A shaft assembly having a first shaft and a second shaft interconnected by a bipot joint is disclosed. The first shaft and the second shaft are disposed in overlapping spaced relationship. The bipot joint includes a pivot block sandwiched between the first shaft and the second shaft. The pivot defines a mounting surface abutting one of the first and second shafts, and a semi-annular surface opposing the mounting surface and abutting the other of the first shaft and the second shaft. A fastener extends through a bore defined by the first shaft, the pivot block and the second shaft to interconnect the first shaft, the pivot block and the second shaft. The fastener includes a spring to bias the first shaft, the pivot block and the second shaft together, thereby de-lashing the bipot joint.
    Type: Application
    Filed: October 2, 2007
    Publication date: April 2, 2009
    Inventor: Joen C. Bodtker
  • Publication number: 20090023505
    Abstract: A transmission pump adapter ring is provided that enables a transmission pump assembly to be operatively connected to an engine, thus enabling a common transmission pump assembly to be used in a given type or types of transmissions while enabling different engines to be used with the transmission simply by changing the adapter ring. The adapter ring allows a novel method of assembling a powertrain that permits assembly of the transmission with a generic (i.e., common) type of pump assembly prior to a determination of the engine type or types to be used with the transmission.
    Type: Application
    Filed: July 20, 2007
    Publication date: January 22, 2009
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS, INC.
    Inventors: Fredrick R. Poskie, Scott H. Wittkopp, Elizabeth I. Wooden
  • Publication number: 20090011843
    Abstract: A constant velocity joint for a drive system of a vehicle comprises: a spider trunnion for transmitting torque between first and second shaft of the drive system, the spider trunnion including a spherical outer surface; and a roller assembly operatively attached on the spider trunnion, the roller assembly including an inner roller, an outer roller, and a plurality of needle rollers engaged between the inner and outer rollers, wherein the inner roller includes a tapered outer surface with a taper angle (?t), and the outer roller includes a tapered inner surface with the same taper angle (?t). The taper angle (?t) is preferably in a range from about 0.23° and to about 1.
    Type: Application
    Filed: September 12, 2008
    Publication date: January 8, 2009
    Applicant: WIA Corporation
    Inventors: Seung Tark Oh, Tae Hong Kim
  • Publication number: 20080064510
    Abstract: A membrane compensating coupling comprises a first compensating element made of fibre composite material with two membranes located opposite one another, a second compensating element and an intermediate tube inserted between these. The first and second compensating element in each case have on their side pointing towards the intermediate tube a radially inwardly directed connecting flange. The intermediate tube is releasably coupled to the connecting flanges. As a result, a membrane compensating coupling comprising at least two membranes made of fibre composite material is provided, which is easy to produce and install, at the same time has low inertias and allows large angle, radial and axial compensation and also a flexible axial length. A hole anchor connection which is particularly suitable for such couplings is also described.
    Type: Application
    Filed: July 9, 2007
    Publication date: March 13, 2008
    Applicant: GEISLINGER GMBH
    Inventors: Cornelius Geislinger, Matthias Geislinger
  • Patent number: 7191711
    Abstract: A shafting, particularly a cardan shaft for rail vehicles, has two cardan joints (4,5), each of which comprises two link forks (7–10) coupled to one another by a central part (6). The central part (6) comprises at least two partial elements (38.1,38.2) that are connected to one another in the peripheral direction in a rotationally fixed manner by a shaft-hub connection, and in a displaceable manner in the axial direction. The shafting further includes a rotary actuator (17) arranged in the central part for performing a torsional movement of the corresponding end areas of one of the two partial elements of the central part relative to one another.
    Type: Grant
    Filed: October 4, 2003
    Date of Patent: March 20, 2007
    Assignee: Voith Turbo GmbH & Co. KG
    Inventor: Hans Lindenthal
  • Patent number: 6962489
    Abstract: A pumping device is provided which comprises a Moineau pump with a helical rotor inside a helical cavity of a stator, driver means, and a drive connecting rod coupled by a respective coupling to a driving shaft of the driver and to one end of the rotor. Each coupling comprises a spherical head secured to the connecting rod and housed in a cavity that is cylindrical of revolution with the same diameter as and secured coaxially to the end of the rotor of the driving shaft; and a ball housed partly in a cup of the spherical head with its axis perpendicular to the axis of the connecting rod and partly in a lateral recess of the cavity.
    Type: Grant
    Filed: November 6, 2002
    Date of Patent: November 8, 2005
    Assignee: PCM Pompes
    Inventors: Jean-Pierre Marielle, Jean-Paul Wautelet
  • Publication number: 20040192448
    Abstract: An apparatus for transmitting torque from a driving unit to a driven unit, comprising the first unit, the second unit and a plurality of torque transmission units. The first unit serves as the driving unit, which is rotatable around a central axis thereof. The second unit serving as the driven unit, which is rotatable around a central axis thereof. The torque transmission units transmits torque from the first unit to the second unit. The torque transmission units enables a relative displacement between the first unit and the second unit in a direction perpendicular to the central axis of the first unit in a state in which the central axes of the first and second units are kept in parallel with each other. The torque transmission units are placed at different positions from the central axis of the first unit.
    Type: Application
    Filed: March 22, 2004
    Publication date: September 30, 2004
    Applicant: THK CO., LTD.
    Inventors: Nobuo Koiso, Toshikazu Ban
  • Publication number: 20040185944
    Abstract: A coupling having slots for receiving drive tabs of an associated driving shaft and a driven shaft, wherein the tabs of the driving shaft and the driven shaft are tapered to militate against rotational play between the driving shaft and the driven shaft which results in undesirable wear and damage to the drive shafts and coupling.
    Type: Application
    Filed: March 21, 2003
    Publication date: September 23, 2004
    Inventors: Richard J. Barron, Harry A. Hunnicutt
  • Patent number: 6578657
    Abstract: A driveline system for a motor vehicle includes at least two propeller shafts and a driveline angle reducer disposed therebetween for drivingly interconnecting the propeller shafts at a fixed operating angle. The driveline angle reducer includes a housing rotatably supporting therewithin a fixed-angle constant-velocity joint. The housing of the driveline angle reducer is mounted to a vehicle body and contains a supply of a lubricant for lubrication of the constant-velocity joint. The driveline angle reducer allows propeller shaft operating angles to be in a range where conventional Cardan joints can be used in the driveline systems without causing excessive cyclic vibrations.
    Type: Grant
    Filed: June 13, 2001
    Date of Patent: June 17, 2003
    Assignee: Torque-Traction Technologies, Inc.
    Inventor: Ralph W. Baxter, Jr.
  • Patent number: 6440000
    Abstract: In order to provide a universal joint suitable as a small diameter joint capable of transmitting a large torque and having a high rotational precision and a high durability at a low cost, the universal joint is a kind of spring ring joints coupling a driven shaft with a driving shaft, for which an angle formed by their axis lines is not great, constructed so as to deal with deviations of the axis lines with respect to each other, owing to the fact that thin bending plates made of glass fiber reinforced polyimide bend. Linking boss portions supporting the bending plates and an intermediate disk are made of a high duty aluminium alloy for elongation having a high tenacity by die cast. A part of the linking boss portions and the intermediate disk is formed as protruding arbors for caulking and the bending plates are jointed directly therewith by caulking.
    Type: Grant
    Filed: August 8, 2000
    Date of Patent: August 27, 2002
    Assignee: Asa Electronic Industry Co., Ltd.
    Inventor: Yukihiro Asa
  • Patent number: 6368222
    Abstract: A universal joint having two or three degrees of freedom in rotation is disclosed which exhibits a small size, great rigidity and satisfactory accuracy. An end of a first node is connected to a base through a rolling bearing. A plurality of circular-arc guide bearings are disposed at positions opposite to the center line of the first node opposite to the base. A circular-arc rail formed around a cylindrical base is engaged to the circular-arc guide bearings. A shaft is disposed in a direction of the diameter which passes through the center of the circular arc of the circular-arc rail of the cylindrical base. A second node is, through a rolling bearing, joined to the shaft such that the center of rotation is positioned on the axis of rotation of the base.
    Type: Grant
    Filed: October 1, 1999
    Date of Patent: April 9, 2002
    Assignee: Okuma Corporation
    Inventors: Nashiki Masayuki, Matsushita Tetsuya, Nakagawa Masao, Watanabe Shigeharu
  • Patent number: 6287206
    Abstract: A univesal joint, block and pin type, in which a carefully designed and sized center section will limit angulation of the joint at any angle desired up to, but not including an angle which will cause lockup.
    Type: Grant
    Filed: October 12, 1999
    Date of Patent: September 11, 2001
    Inventor: Jack W. Stage
  • Patent number: 6039652
    Abstract: A Hookes universal joint assembly which, in a preferred embodiment, comprises two series connected universal joints to produce an angle change of 60.degree. to 70.degree.. A rigid housing confines input and output rotating drive shafts. In a preferred embodiment the yokes and cross members are formed as flat steel plates with tab-into-notch engagements. A method to retain an input shank and an end linkage to a drive shaft is disclosed. End linkages have parallel extending legs where the legs have protruding bumps at a distal end to engage exterior notched slots of input and output drive shafts. The drive shafts are identical in structure. An input shank is permanently held in a recess of the input drive shaft by engagement of a rib of the housing into a groove around the input shank.
    Type: Grant
    Filed: August 11, 1997
    Date of Patent: March 21, 2000
    Assignee: WorkTools, Inc.
    Inventor: Joel Marks
  • Patent number: 6011942
    Abstract: It is desirable if the lengthwise center axis of a cylindrical rotating member such as a photoreceptor drum is aligned exactly with the center axes of the support shafts. However, as it is impossible to eliminate manufacturing errors in components, it is unavoidable for there to be a slight angle of intersection between the center axis of the cylindrical rotating member and the center axes of the support shaft. Consequently, the object of the present invention is to provide a support mechanism for the cylindrical rotating member whereby the cylindrical rotating member exhibits little unevenness of rotation. When lengthwise axis of the cylindrical rotating member forms angle of intersection .alpha. with lengthwise axis of shaft, this angle .alpha.
    Type: Grant
    Filed: May 28, 1998
    Date of Patent: January 4, 2000
    Assignee: Minolta Co., Ltd.
    Inventors: Hajime Taniguchi, Tooru Watanabe, Ikuro Chimoto, Akihiro Nakamura, Masato Togami
  • Patent number: 5964664
    Abstract: A shaft construction transmits power from a vehicle to a driven mechanism located on an implement. The shaft construction includes a first shaft having a first end coupled to the driving shaft of the vehicle. A second end of the first shaft is coupled to a first end of a second shaft by a first universal joint. A second end of the second shaft is coupled to a driven shaft of the implement by a second universal joint. A positioning structure includes a first frame disposed adjacent the first universal joint and a second frame disposed adjacent the second universal joint. The first shaft is rotatably coupled to the positioning structure so that it is maintained substantially perpendicular to the first frame in the horizontal plane. The first and second frame members are connected by a pair of elongated links. Each of the links is pivotally secured at opposite ends to each of the frames. The links cross one another as they extend between the frames.
    Type: Grant
    Filed: October 11, 1996
    Date of Patent: October 12, 1999
    Inventors: Estle A. Cook, Loretta E. Cook
  • Patent number: 5951400
    Abstract: A constant velocity flexible coupling for direct drive to the wheels of a low speed light duty wheeled vehicle or 4-wheel drive steer lawn tractor having discs which flexibly couple a drive shaft to a wheel flange.
    Type: Grant
    Filed: November 8, 1996
    Date of Patent: September 14, 1999
    Inventor: David W. Giere
  • Patent number: 5890965
    Abstract: The dry coupling includes a typical shaft to shaft coupling, conformed to body the invention by inclusion of two hub parts (4) with hub flanges (5,5') bonded thereunto and also an intermediate tube (6) interconnecting the flanges with respective flanges (7), each forming a membrane. For transmitting a torque the flanges are coupled to adjacent hub flanges (5). It is important that all parts (4,5;6,7) possibly except connecting elements (8) consist of a high modulus fiber reinforced material (FVW). Preferably the hubs consist of a carbon fiber reinforced material (CFK) and the intermediate tube of a more flexible GFK.
    Type: Grant
    Filed: September 13, 1996
    Date of Patent: April 6, 1999
    Assignees: Maag Getriebe AB, Dr. Ing. Geislinger &C., Schwingungstechnik Gesellschaft mbH
    Inventors: Thomas Deeg, Peter Pfeifer, Gunther Lutz
  • Patent number: 5888140
    Abstract: A torsionally stiff, flexible shaft coupling, an all-steel shaft coupling for transmitting torques between shafts. Shafts with mutually offset axes, having one or two packs of plates (5) which are places on clamping bushes (6) and are clamped on the latter, by a ring (4) in each case, against an end collar (6b) of the clamping bushes (6), the packs of plates (5) being clamped, by screws (2, 7) extending through the clamping bushes (6), alternately in the circumferential direction using the mutually opposite flanges (1a, 8a) of hubs (1, 8) to be coupled to one another, which of packs of plates, in order to achieve the object of increasing the displacement capability of the plates and thus simplifying the assembly and increasing the operational reliability, comprise a circumferential relief groove (4a) and (6a) in each of the rings (4) and/or the collars (6b) of the clamping bushes (6).
    Type: Grant
    Filed: March 11, 1997
    Date of Patent: March 30, 1999
    Assignee: Chr. Mayr GmbH & Co. KG
    Inventors: Gunther Klingler, Christoph Dropman, Johann Huber
  • Patent number: 5860864
    Abstract: A joint assembly for connecting two spaced drive shafts, such as in a submergible pumping system. The joint assembly comprises a connecting shaft having enlarged bodies on each end thereof, a housing surrounding each enlarged body, each housing connectable to one of the drive shafts, lock devices for preventing relative rotational movement of the connecting shaft with respect to the drive shafts, and mechanisms within each housing acting upon the enlarged bodies to bias the connecting shaft into coaxial alignment with the drive shafts. With this joint assembly lateral displacement or "wobble" of the drive shafts is permitted, yet the bias mechanisms tend to restore the drive shafts to coaxial alignment.
    Type: Grant
    Filed: January 10, 1997
    Date of Patent: January 19, 1999
    Assignee: Camco International, Inc.
    Inventor: Ivan Vukovic