Rotary To Intermittent Unidirectional Motion Patents (Class 74/112)
  • Patent number: 8967007
    Abstract: A transmission utilizing oscillating torque to vary the mechanical power transmitted to a load was previously patented by this inventor (U.S. Pat. Nos. 6,062,096, 6,044,718, and 7,481,127). The transmission has a rotatable input member and a rotatable mass. The transmission also has a member with an eccentric offset, with the rotatable mass rotatably coupled to the offset and being eccentric with respect to the offset. The present invention provides several improvements to the previous patents including belt or chain for the rotating masses to improve load carrying capacity and improvements to the control system using inertia control. FIG. 1 shows the fully assembled transmission.
    Type: Grant
    Filed: April 26, 2009
    Date of Patent: March 3, 2015
    Inventor: William Terry Lester
  • Patent number: 8869641
    Abstract: An indexing transmission for an on-load tap changer or a tap selector of a tapped transformer has a rotatable cam disk having an outer edge formed with a succession of convex and concave cam formations in regular succession and merging with one another, a crank transmission driving the cam disk, and a drive output disk acted on by the cam disk and having an outer edge. Engagement rollers rotatable on an end face of the drive output disk near the outer edge of the drive output disk roll on the outer edge of the cam disk. A switch shaft is rotationally fixed to the drive output disk such that the cam disk in cooperation with the engagement rollers of the drive output disk triggers a stepped rotation of the switch shaft through a defined step angle.
    Type: Grant
    Filed: February 23, 2011
    Date of Patent: October 28, 2014
    Assignee: Maschinenfabrik Reinhausen GmbH
    Inventors: Klaus Hoepfl, Gregor Wilhelm
  • Patent number: 8640565
    Abstract: A controller of the present invention is provided for valve to be connected thereto. The controller is used for executing rotation and movement motion so as to operate the stem of the valve and to control connection conditions of the valve. As such, the valve assembled with the controller can be controlled and switched automatically. Cost of management of factories is minimized.
    Type: Grant
    Filed: August 18, 2011
    Date of Patent: February 4, 2014
    Inventors: Fan-Yu Liu, Geng-Xue Liu
  • Patent number: 8613235
    Abstract: A continuously variable transmission includes: an input movement, a control system, a continuously variable reciprocating movement, a first holder, a second holder, a chain, an output sprocket, and a freely rotatable sprocket. The holders having the reciprocating movement. Each of the holders having a linearly movable teeth. The movable teeth are perpendicularly movable to the reciprocating movement. Each of the movable teeth having an internal end and an exposed end. The exposed end having a first slope and a second slope. The first slope having a greater slope than the second slope.
    Type: Grant
    Filed: December 2, 2011
    Date of Patent: December 24, 2013
    Inventor: Carlos Raul Espinosa-Montalvo
  • Patent number: 8387475
    Abstract: A continuously variable transmission comprises an input shaft and an output shaft, a drive wheel, a toothed wheel or a chain wheel, an endless sleeve, a ring wheel, at least one linking member, wedge teeth or a chain, wherein the drive wheel is provided with an annular recess in which a plurality of reversal wedge teeth run, and the wedge teeth are connected with a head portion of the linking member connected with the ring wheel, the spread of axles between the drive wheel and the ring wheel is adjusted via the swinging of the endless sleeve; and with the aid of the locking and releasing operations of the wedge teeth, the linking members are urged to drive the ring wheel, whereby changing the input and output transmission ratio.
    Type: Grant
    Filed: December 29, 2007
    Date of Patent: March 5, 2013
    Assignee: Miu Ling MAK
    Inventors: Yau Cheung Kwok, Miu Ling Mak
  • Patent number: 8272655
    Abstract: A mini bike for strengthening a leg muscle, and for enjoying amusement and a leisure time is provided. The mini bike having a pedal as a power generator includes: a driver having a first bevel gear in order to transmit rotation power generated by a rolling motion of a pedal; a second bevel gear installed to transmit rotation power generated in the driver; a first power transmission gear coaxially installed in the second bevel gear to transmit rotation power to a spline shaft; a clutch positioned at the spline shaft to selectively connect rotation power of the first power transmission gear to a first gearshift and a second gearshift and for controlling a low speed and a high speed; a first driving gear and a second driving gear for rotating by selection of the clutch; and a driving controller including a gearshift in which the clutch is connected to the cable in order to select the first gearshift and the second gearshift.
    Type: Grant
    Filed: September 11, 2008
    Date of Patent: September 25, 2012
    Inventor: Mi Nar Kim
  • Patent number: 7963185
    Abstract: A stepper motor driven actuator that eliminates the need for a position sensor is provided. The stepper motor rotates a cam in a control piston valve. In a single nozzle embodiment, pressure balance is maintained by a spring preload on one end of the piston in one embodiment, and by hydraulic pressure acting on a double diameter end portion of the piston in another embodiment. As the cam is rotated, the change in the gap between the nozzle and the cam changes the pressures on the control piston ends, which forces the piston in the direction that will re-equalize the pressure based on the cam-nozzle gap. As a result, the head or rod of the actuator piston receives high pressure flow, thereby moving the actuator. Movement of the actuator rod provides mechanical feedback to the cam, causing the cam to move back to its mechanical null position.
    Type: Grant
    Filed: March 11, 2008
    Date of Patent: June 21, 2011
    Assignee: Woodward, Inc.
    Inventor: Mark A. Spickard
  • Patent number: 7942073
    Abstract: Device for transmitting rotary motion in a diverter switch comprising a motion-transmitting member for transforming an alternating rotary motion of a drive shaft into a unidirected rotary motion of a driven body driven about driven shaft. The motion-transmitting member includes an intermediate body rotatable about an intermediate shaft. A mechanical energy accumulation member is connected to the driven body. The motion-transmitting member for transforming the alternating rotary motion of the drive shaft into a unidirected rotary motion of the driven shaft includes an intermediate motion member connected to a crank mechanism. The motion member includes an engagement mechanism for transforming the linear motion into a unidirected rotary motion of the intermediate shaft via drive members.
    Type: Grant
    Filed: December 6, 2006
    Date of Patent: May 17, 2011
    Assignee: ABB Research Ltd.
    Inventor: Lars Jonsson
  • Patent number: 7694596
    Abstract: In a gear system and a rotary transducer provided with the gear system, the gear system includes a first part, a convex toothed wheel, a supporting body, relative to which the first part and the convex toothed wheel are rotationally mounted, and engaging elements which mesh with the toothed wheel according to the rotational position of the first part. The engaging elements carry out a movement with a radial directional component relative to the toothed wheel. A force with a tangential directional component is applied to the toothed wheel, the force being the result of the interaction between the engaging elements and the supporting body.
    Type: Grant
    Filed: February 7, 2003
    Date of Patent: April 13, 2010
    Assignee: Dr. Johannes Heidenhain GmbH
    Inventor: Johann Mitterreiter
  • Publication number: 20100083779
    Abstract: A multi-position rotary detent assembly operable to selectively retain a first component and a second component in a first position, a second position, and at least one intermediate position is provided. The detent assembly includes a first biasing assembly urging the first component into the first position. A cam plate is disposed opposite a guide pin assembly and has a cam path having a first detent feature and at least one intermediate detent feature. The guide pin is configured to engage the cam plate and is movable along the cam path. The first component is in the first position when the guide pin engages the first detent feature, is placed in an intermediate position when the guide pin engages a corresponding intermediate detent feature, and is urged into in the second position when disengaged from the cam path.
    Type: Application
    Filed: October 2, 2008
    Publication date: April 8, 2010
    Applicant: Toyota Motor Engineering & Manufacturing North America, Inc.
    Inventor: Que-Whang Rhee
  • Patent number: 7624656
    Abstract: A torque transfer mechanism for use as a continuously variable transmission that includes an input shaft, a cam member, a torque-splitting mechanism cooperating with the cam member, and a torque output assembly for coupling the torque splitting mechanism to an output shaft when there is substantially zero relative velocity between the moving parts to be disconnected to minimize torque feedback to the input shaft.
    Type: Grant
    Filed: March 31, 2005
    Date of Patent: December 1, 2009
    Assignee: BHSCI LLC
    Inventors: Albert Harold Parks, Ning Zheng
  • Patent number: 7526976
    Abstract: A periodical driving system includes a circular wheel having a plurality of radial recesses defined in an outer periphery of the wheel and each recess is defined by two inner sides and each inner side includes an inward curved section so as to form a convergent opening in the outer periphery of the wheel. A driving disk has two driving pins extending therefrom and each driving pin has a cylindrical base portion extending from the disk and a protrusion extends axially from a distal end of each base portion. The driving pins enter into the recesses via the openings so as to push the inner sides of each recess. The two protrusions are in contact with the two curved sections of the two recesses when the wheel is in stationary status.
    Type: Grant
    Filed: September 14, 2006
    Date of Patent: May 5, 2009
    Inventor: Tai Jung Cheng
  • Publication number: 20090078068
    Abstract: An actuation device includes a frame, a linkage mechanism and a handle mechanism. The handle mechanism includes a handle and a connection link, each having a first end and an opposite second end. The first end of the handle is pivotally connected to the frame. The first end of the connection link is pivotally connected to the handle and the second end of the connection link is pivotally connected to the linkage mechanism. Movement of the second end of the handle rotates the handle about an axis determined by a connection point of the first end of the handle to the frame and results in movement of the connection link in a first direction causing translation of the linkage mechanism in a second direction substantially perpendicular to the first direction to mechanically and electrically connect a power supply to an outside circuit through an opening of the frame.
    Type: Application
    Filed: September 26, 2007
    Publication date: March 26, 2009
    Inventors: Shawn Canfield, Michael F. Scanlon
  • Publication number: 20080111445
    Abstract: The invention proposes a drive module intended to engage with a clock wheel having a plate made of crystalline or amorphous material comprising a lower layer, which forms a substrate, and an upper layer, into which an MEMS type of micromotor is etched, wherein the micromotor has at least one actuator rotatably driving a rotor, characterised in that a pinion arranged coaxially to the rotor is rotatably connected to the rotor and disposed above the rotor, said pinion being provided to engage with the clock wheel in an engagement zone located close to an outer peripheral edge of the plate, that the rotor is disposed on the plate in order to minimise the distance between the outer peripheral edge of the rotor and the outer peripheral edge of the plate corresponding to the engagement zone, and that the diameter of the pinion is larger than that of the rotor so as to protrude relative to the plate into the engagement zone.
    Type: Application
    Filed: November 13, 2007
    Publication date: May 15, 2008
    Inventors: Lionel Paratte, Andre Zanetta, Pierre-Andre Meister, Yves Petremand, Nicolas Golay, Fabien Blondeau, Wilfried Noell
  • Publication number: 20080015084
    Abstract: In a longitudinal motion actuator, one pinion is fixed to a motor output shaft, and a plurality of transmission mechanisms having the same configuration are provided. Each of transmission mechanisms is configured so that both ends of a lead screw to which a gear engaging with the pinion is fixed are rotatably supported by bearings. A movable nut provided with a plurality of threaded holes engaging with thread grooves in the lead screws of the plurality of transmission mechanisms is provided, and when the motor is rotated, the lead screws are rotated in the same direction via the pinion and the gear, by which the movable nut is driven longitudinally.
    Type: Application
    Filed: July 10, 2007
    Publication date: January 17, 2008
    Inventors: Eiji MAYUMI, Takashi USHIKU
  • Patent number: 7199544
    Abstract: A device for steering a vehicle, particularly a helicopter or even a simulator, comprising a handgrip that can be moved in a manner that is linear to the drive of a drive device, particularly the power unit or motor. The linear motion of the handgrip is coupled with a rotational motion of a drive element.
    Type: Grant
    Filed: December 12, 2003
    Date of Patent: April 3, 2007
    Assignee: Wittenstein AG
    Inventor: Jörg Henle
  • Patent number: 7100466
    Abstract: An angular velocity profile generator [22,24] comprising an input shaft [46], an output shaft [56], a universal joint coupling the shafts by pivot pins [70,75] situated on two pivot axes which are normal to one another, means [49] in the joint for varying the path of rotation of the pin [70] relatively to that of the pin [75], a first control arrangement [32] for varying the angle between the shafts and a second control arrangement [84], external to the universal joint, connected to the pivot pin path varying member which is activated by the first control arrangement to suit a specific velocity profile produced by the generator. The invention extends to an infinitely variable transmission machine including transmission stages [16] which each include two of the profile generators connected in series and an angular velocity profile portion extraction device.
    Type: Grant
    Filed: September 11, 2002
    Date of Patent: September 5, 2006
    Assignee: Varibox (PTY) Limited
    Inventor: Johannes Jacobus Naude
  • Patent number: 7066042
    Abstract: An advancing/retracting mechanism having a pair of cams is disclosed. The advancing/retracting mechanism includes a first cam, a second cam, and a barrel. The first cam includes an angled surface and a shoe, and the second cam includes an angled surface and a slider. The shoe engages with a helical surface in the barrel, and the slider engages with a straight surface in the barrel. The first cam travels a first distance along the longitudinal axis of the barrel from a first to a second state, and the second cam travels a second distance that is greater then the first distance along the longitudinal axis of the barrel from the first to the second state.
    Type: Grant
    Filed: January 7, 2004
    Date of Patent: June 27, 2006
    Assignee: Sanford L.P.
    Inventors: Neville E. Andrews, Andrew Bielecki
  • Patent number: 6928895
    Abstract: A ballnut assembly is provided in which a locknut (20), which is normally unloaded becomes loaded in the event of failure of a primary load path. This loading causes relative motion between locking nut (24) and the threads of a shaft (8) such that on clearance there between is eliminated. This causes frictional forces to initiate a lock-up of the locknut.
    Type: Grant
    Filed: August 6, 2002
    Date of Patent: August 16, 2005
    Assignee: Smiths Wolverhampton Limited
    Inventors: Jonathan Davies, Brian Farley, Neil Venables
  • Patent number: 6919658
    Abstract: An XY coordinate measuring stage includes a drive unit for a coordinate axis. The drive unit has a friction rod and a motor, the motor including a motor shaft in contact with a side of the friction rod. An applied pressure roller contacts an opposite side of the friction rod. At least one applied pressure spring urges the applied pressure roller, the friction rod, and the motor shaft against one another with an applied pressure force so that the motor shaft frictionally engages the friction rod, converting a rotational motion of the motor into a linear motion of the friction rod. A compensation device associated with the motor shaft generates a compensation force onto the motor shaft oppositely to the applied pressure force so as to at least partially compensate for the applied pressure force.
    Type: Grant
    Filed: August 1, 2003
    Date of Patent: July 19, 2005
    Assignee: Leica Microsystems Semiconductor GmbH
    Inventor: Ulrich Kaczynski
  • Patent number: 6789439
    Abstract: A reciprocal force outputting mechanism having a body having a slide slot that contains a slide block, thereby providing for the linear, reciprocal movement of the slide block within the slide slot. The slide block has an elongated opening formed centrally and a row of teeth are disposed along each of the two facing sides the said elongated opening, with a stem extending from one end of the said slide block inserted through a guide hole of the body. A fan-shaped gear is secured onto a power output shaft that rotates it. When the fan-shaped gear revolves and its teeth are respectively enmeshed with a row of teeth, the slide block is brought into reciprocal motion, causing the reciprocal movement of the stem which serves as a means of outputting force.
    Type: Grant
    Filed: June 7, 2002
    Date of Patent: September 14, 2004
    Inventor: Tien-Chen Tung
  • Patent number: 6684724
    Abstract: A shape memory alloy step drive mechanism includes at least one shape memory alloy element (1) with a fixed end, the other end being connected to one end of a lever (2). The lever (2) is provided with a pawl (4) which is located to move on the teeth of a ratchet wheel (5) mounted on a main shaft (6) along with the lever (2). A stopper pin (7) is provided which also guides the pawl (4) on the ratchet wheel (5). A bias spring (9) is provided on a mandril on the main shaft (6) for returning the lever (2) to its original position. A detent wheel (8) with at least one detent lever (10) is mounted on the main shaft (6) to provide the detent torque required to hold the main shaft (6) in position when the lever (2) returns to its original position. A pair of support brackets (11) are provided for supporting and holding the various components together in an assembly.
    Type: Grant
    Filed: October 16, 2001
    Date of Patent: February 3, 2004
    Assignee: Indian Space Research Organization
    Inventors: Viswanatha Narasimhiah, Murali Parathasarathy Iyengar Talkao
  • Patent number: 6427198
    Abstract: Disclosed is a system, method, and program for determining the configuration of a computer system having a planar board, a planar bus, and attached planar devices. A read operation is performed on planar configuration memory indicating addresses for each planar device capable of being attached to the planar board. A read command is then sent to the address of each planar device indicated in the planar configuration memory to determine if each planar device is available. A configuration memory for each available planar device is read to determine configuration information and if there are addresses of attached devices accessible through the planar device. A read command is then sent to the address of each attached device indicated in the configuration memory of the planar device to determine configuration information for each attached device and if there are further attached devices accessible through the attached device.
    Type: Grant
    Filed: February 15, 2000
    Date of Patent: July 30, 2002
    Assignee: International Business Machines Corporation
    Inventors: Neil Clair Berglund, Diane L. Knipfer, David Otto Lewis
  • Patent number: 6336887
    Abstract: A double orbital transmission is disclosed which has first and second input shafts (12 and 13) which carry first and second eccentrics (14 and 16). The pawl carrier (24) is mounted on the second eccentric and the pawl carrier carries a plurality of pawls (32 and 34). An orbital body (50) is mounted on the first eccentric (16) and carries first and second assembler rings (42 and 44) for engaging with the pawls (32 and 34). The pawls (32 and 34) are restrained to undergo orbital motion by an orbit control plate (104) and the orbital body (50) is also constrained to undergo orbital motion and orbital control plate coupled to an output (120). A phase controller is provided to control the phase relationship between the two input shafts (12 and 13) and therefore the drive ratio of the transmission by controlling the phase relationship between the eccent rics (14 and 16).
    Type: Grant
    Filed: May 5, 2000
    Date of Patent: January 8, 2002
    Assignee: Aimbridge Pty Ltd.
    Inventor: Eric Paul Willmot
  • Patent number: 6119539
    Abstract: An infinitely and continuously variable transmission system capable of gradually multiplying TORQUE while decreasing RPM and vice-versa. For a given input shaft TORQUE and RPM, the system delivers to the output shaft such increases or reductions in TORQUE with inversely corresponding increases or reductions in RPM as may be desired across a predetermined and very wide range of transmission ratios. The range can include zero RPM for the output shaft while the input shaft continues to rotate at any RPM, thus eliminating the need for an input shaft disengaging clutch. The invention includes a main assembly consisting of one or more pairs of co-axial diametrically opposed one-way clutches and corresponding pairs of diametrically opposed carrying shafts which are interconnected through a central hub assembly. The axes of the carrying shafts share the same plane with each other and with the central hub's multi-directional center around which they are radially and symmetrically mounted.
    Type: Grant
    Filed: August 10, 1998
    Date of Patent: September 19, 2000
    Assignee: Galaxy Shipping Enterprises, Inc.
    Inventor: John Paul Papanicolaou
  • Patent number: 6062096
    Abstract: A transmission utilizes oscillating torque to vary the mechanical power transmitted to a load. An arm assembly is rotatably coupled to a frame. At the ends of the arms are eccentric masses, rotatably coupled thereto. An input shaft rotates the masses about the ends of the arms. The rotating masses produce an oscillating torque that causes the arms to oscillate. The arms are coupled to an output assembly. The output assembly utilizes one way clutches, with one clutch reversed relative to the other clutch. The one way clutches convert the bidirectional rotation of the arms to unidirectional rotation for the load. The output speeds of the transmission are controlled by providing at least two side by side rotatable masses and varying the phase of one of the masses relative to the other mass. Varying the phase changes the center of gravity of the masses, thereby affecting the torque applied to the arms.
    Type: Grant
    Filed: June 2, 1998
    Date of Patent: May 16, 2000
    Inventor: William T. Lester
  • Patent number: 6044718
    Abstract: A transmission utilizes oscillating torque to vary the mechanical power transmitted to a load. An arm assembly is rotatably coupled to a frame. At the ends of the arms are eccentric masses, rotatably coupled thereto. An input shaft rotates the masses about the ends of the arms. The rotating masses produce an oscillating torque that causes the arms to oscillate. The arms are coupled to an output assembly. The output assembly utilizes one way clutches, with one clutch reversed relative to the other clutch. The one way clutches convert the bidirectional rotation of the arms to unidirectional rotation for the load. The output speeds of the transmission are controlled by providing at least two side by side rotatable masses and varying the phase of one of the masses relative to the other mass. Varying the phase changes the center of gravity of the masses, thereby affecting the torque applied to the arms.
    Type: Grant
    Filed: September 8, 1999
    Date of Patent: April 4, 2000
    Inventor: William T. Lester
  • Patent number: 5899113
    Abstract: Variable speed drive to be connected to a rotating driving shaft (5) and to a rotating driven shaft (6) includes at least two angled bearings (7, 7'), controller for controlling the orientation of the axis (13, 13') of each angled bearing (7, 7') adapted so that the axes are offset from one another, and transmission (9,9', 11, 11') adapted so that in each phase of the movement at least one of the angled bearings (7, 7') engages and at least one of the bearings (7, 7') does not engage. The controller is adapted to alter the slant of all the angled bearings (7, 7') on the basis of a signal for controlling the variation in the variable speed drive ratio.
    Type: Grant
    Filed: January 13, 1997
    Date of Patent: May 4, 1999
    Inventor: Jean Badersbach
  • Patent number: 5860320
    Abstract: A variable ratio power transmission in the form of a gear box is described, in which the gear ratio of the input and output shafts can be varied continuously between a maximum and a minimum. The power transmission comprises a first bevel wheel (40) rotatably mounted in connection with a U-shaped member (32) on a first axis (34). The U-shaped member (32) is pivotable about the axis (34) and is coupled to the bevel wheel (44) via a sprag clutch (36). Hence, pivoting movement of the U-shaped member (32) in a first direction about the axis (34) results in a torque being applied via the sprag clutch (36) to the bevel wheel (44), whereas pivoting movements of the U-shaped member (32) in the opposite direction has no effect via the sprag clutch (36) on rotation of the bevel wheel (44). A second bevel wheel (50) is also coupled to the U-shaped member (32) via a second sprag clutch (38) which operates in the reverse direction to that of the first sprag clutch (36).
    Type: Grant
    Filed: March 11, 1996
    Date of Patent: January 19, 1999
    Inventor: Steven Mark Crabb
  • Patent number: 5653142
    Abstract: To provide an intermittently rotary gearing that converts rotary motion of a motor to intermittent rotary motion by utilizing a mechanical structure, an input shaft interlocking with a drive shaft of the motor is provided, a first gear and a second gear both interlocking with the input shaft when at least the input shaft is rotated in the power output direction of the motor are provided around the input shaft, and a first coiled spring is fitted to the first gear and second gear so as to extend over the bosses thereof. A first divisional shaft and a second divisional shaft are provided in parallel to the input shaft and also coaxially to each other.
    Type: Grant
    Filed: February 5, 1996
    Date of Patent: August 5, 1997
    Inventor: Humio Kato
  • Patent number: 5636935
    Abstract: A saw chain drive device comprising a clutch drum and a drive member. The clutch drum has an axis of rotation and includes an end wall forming at least two apertures, and at least one of the apertures is radially spaced from the axis of rotation. The drive member includes at least two axially extending projections adapted to be received in the apertures of the end wall. At least one of these projections forms a circumferentially extending groove positioned to be aligned with the end wall of the clutch drum when the projections of the drive member are received in the apertures of the end wall.
    Type: Grant
    Filed: June 15, 1994
    Date of Patent: June 10, 1997
    Assignee: Griffiths & Beerens Pty. Ltd.
    Inventor: Cornelis J. M. Beerens
  • Patent number: 5609061
    Abstract: Bearing system for a turntable (10) with a stepping drive, in which a table plate (12) is rotatably mounted on ball bearings on top of a housing (14), having drive pins (36) disposed on the same diameter offset at uniform angular distances and protruding from the bottom of the table plate (12), the drive pins engage a cam groove (34) in a motor-driven roll (32) mounted on the housing, wherein the shape of the cam groove determines the characteristic of the rotary movement of the turntable (12); the table plate being circularly defined, has a diameter that is greater than the associated upper part of the housing (14) that forms the bearing area (40); the part of the table plate (12) reaching radially past the housing is thickened such that it reaches slightly downward over the bearing area (40) of the housing and the races of the rolling bearing for the table plate are formed in the bearing area of the outwardly facing wall of the housing (14).
    Type: Grant
    Filed: April 22, 1996
    Date of Patent: March 11, 1997
    Assignee: Expert Maschinenbau GmbH
    Inventor: Reinfried Moller
  • Patent number: 5605072
    Abstract: A driven gear (3a), a gear (11a) to a rotary solenoid (15a) and an output drive gear (19a) are mounted to rotate together, preferably as one part turning on a stationary shaft (7a). The driven gear and the output drive gear have disengagement sectors (5a and 20a). Activation of the solenoid turns the driven gear into engagement with a normally turning drive gear (1a). Shortly after the sector on the output gear is cleared, and the load (27) is driven through engagement with driven gear (23a). After one cycle, the detent force of the solenoid positions the sector 5a so that engagement is terminated. Because the rotary solenoid need only move the gears 3a, 11a and 19a, the size of the load is immaterial to the physical requirements for the solenoid and its reliability of operation.
    Type: Grant
    Filed: September 14, 1995
    Date of Patent: February 25, 1997
    Assignee: Lexmark International, Inc.
    Inventors: John A. Schmidt, Kevin D. Schoedinger
  • Patent number: 5520065
    Abstract: An incremental speed reduction unit mounted between a fluid meter and a totalizer for reducing the speed at which the totalizer operates comprises a drive gear rotatably supported on a shaft and drivingly rotated by the fluid meter. A ring shaped gear integrally formed on an inside surface of the drive gear has a single set of gear teeth radially extending from the surface thereof. An idler gear rotatably supported on another shaft and drivingly rotated by the ring shaped gear has two sets of interspaced gear teeth of different lengths for incrementally causing the idler gear to rotate upon engagement of the teeth of the ring shaped gear. A driven gear connected to the first shaft is drivingly rotated by the idler gear and communicates such rotation to the totalizer.
    Type: Grant
    Filed: March 22, 1994
    Date of Patent: May 28, 1996
    Assignee: Dresser Industries, Inc.
    Inventor: Robert E. Hansen
  • Patent number: 5297449
    Abstract: A transmission device having a simplified construction as well as a higher power transmission efficiency is provided, wherein a rotational speed can be changed steplessly without interrupting a power transmission and the rotation can be reversed. In the outer periphery of the rotating shaft (2) a thread-shape spline (5) having a first inclined plane oblique to the axial direction is provided and a rotating body (3) having a spline (not-shown) engaging with the spline (5) is rotatably and externally engaged with the rotating shaft (2). One of the rotating shaft (2) or the rotating body (3) is selected as a driving side and the other is selected as a driven side and both or one of the rotating shaft (2) and the rotating body (3) are displaced in the axial direction of the rotating shaft (2).
    Type: Grant
    Filed: June 18, 1992
    Date of Patent: March 29, 1994
    Inventor: Hiroshi Karita
  • Patent number: 5243868
    Abstract: A continuously and infinitely variable mechanical power transmission that utilizes the principles of gyrodynamics in a torque converter and gearing arrangement as its means of achieving continuous and infinitely variable torque ratios between input and output rotary members.
    Type: Grant
    Filed: December 22, 1992
    Date of Patent: September 14, 1993
    Inventor: Abram Schonberger
  • Patent number: 5123291
    Abstract: Snap-action spring device for load-reversing switches of multiple contact switches whose spring can be loaded by a drive. In conventional load-reversing switches, a gear moves a cam disk to and fro between two end positions, so that the contacts which close last during the movement in one direction are the first to open during the reverse movement and vice versa. This rigid sequence of contacts is unsuitable for thyristor load-reversing switches. The invention proposes that the driven element be connected to a coupling element which can rotate in one direction only independently of the direction of rotation of the drive. This permits automatic contact sequence control and precludes switching errors, in a simpler manner.
    Type: Grant
    Filed: September 18, 1990
    Date of Patent: June 23, 1992
    Assignee: Elin-Union Aktiengesellschaft fur Elektrische Industrie
    Inventor: Ernst Sonntagbauer
  • Patent number: 5048358
    Abstract: A rotary phased radial thrust variable drive transmission which is lcoated between an input driving member, such as the pedal-driven sprocket of a bicycle, and an output driven member, such as the hub of a bicycle wheel which are mounted for relative rotation on a common axis, such as the axle of the rear wheel of a bicycle. The transmisison includes radial thrust linkages which are carried by the input driving member for cooperating with a surrounding cam ring assembly having a normally fixed cam profile providing a torsional thrust on the output driven member to cause rotation thereof. The cam ring assembly is selectively adjustable to vary its profile.
    Type: Grant
    Filed: June 4, 1990
    Date of Patent: September 17, 1991
    Assignee: Thurston, Inc.
    Inventor: William B. Shook
  • Patent number: 5036716
    Abstract: A mechanical transmission is provided to transmit rotary mechanical motion at a mechanical advantage that is selectively and infinitely variable. An output shaft in an output drive mounting frame is driven by a rotary input drive in an input drive mounting plate. The mechanical advantage at which power is transmitted is governed by the position of the output drive mounting frame relative to the input drive mounting plate. A plurality of separate intermediate links, all having toothed gear sections are driven by the input drive and are sequentially and discontinuously brought into meshed engagement with a drive output gear. The intermediate links are all rotatable independently of each other about a common axis on the output drive mounting frame.
    Type: Grant
    Filed: August 8, 1990
    Date of Patent: August 6, 1991
    Inventor: Michael Daniehl
  • Patent number: 4907474
    Abstract: A mechanical torque converting transmission for producing an output with variable, controllable speed and torque characteristics comprises a rotary input shaft adapted for attachment to a rotary power source and connected to a main drive gear. The drive gear is meshed with a plurality of pinion gears which are journaled for rotation on an arm assembly. An eccentric device is driven by each pinion gear for creating a centrifugal force that cyclically urges the arm assembly in alternating forward and backward directions with a pulsating motion during each rotation of each eccentric device. A clutch is provided for allowing forward movement of the arm assembly while preventing movement in the backward direction during each eccentric revolution.
    Type: Grant
    Filed: October 7, 1988
    Date of Patent: March 13, 1990
    Assignee: Inductran Corporation
    Inventor: John G. Bolger
  • Patent number: 4895046
    Abstract: An incremental drive for the incremental driving of a rotary shaft or of a line device, having a rotary driver shaft adapted to be driven by a power means. A plurality of cams are mounted on the drive shaft each having an offset camming surface relative to the axis of rotation of the driver shaft. A shoe with a respective engagement face is fitted to a respective cam. A driven element--rotary or linear--is sequentially contacted by the engagement faces. The driver shaft is resiliently biased toward the driven element. Rotation of the driver shaft causes the shoes sequentially to drive the driven element, and the resilient bias maintains driving contact and enables relief of the shoes from the driven element during operation.
    Type: Grant
    Filed: October 28, 1988
    Date of Patent: January 23, 1990
    Inventor: Michael R. Everman
  • Patent number: 4716783
    Abstract: An intermittent gear wheel lock mechanism includes major engaging portions and secondary engaging portions formed on one surface of an intermittent gear wheel and spaced by a predetermined distance. When an unlock lever is inserted, and a lock member is detached from the major engaging portion, the lock member is moved to the movement path of the secondary engaging portion while the unlock member remains in the inserted position, so that the lock member engages the secondary engaging portion which reaches there as the intermittent gear wheel rotates, and locks the intermittent gear wheel unrotatable. When the unlock lever returns to its original position, the lock member moves from the secondary engaging portion to the movement path of the major engaging portion and engages same to lock the intermittent gear wheel unrotatable.
    Type: Grant
    Filed: April 10, 1986
    Date of Patent: January 5, 1988
    Assignee: Clarion Co., Ltd.
    Inventor: Hideki Hayashi
  • Patent number: 4610591
    Abstract: A control device for feeding metal bars to guide equipment for feeding an automatic multiple-spindle lathe. The device consists of a series of drive shafts, each of which accounts for the feeding of a bar. The shafts are equal in number to the lathe spindles and are placed in a drum that rotates synchronously with the lathe spindle holding drum. Each of these shafts can be coupled with a drive element when a certain length of bar is to be fed. The coupling takes place through engaging and disengaging parts mounted between the shaft and the drive element. Each shaft controls at least one gear for feeding a bar, through a chain or the like provided with a bar-pusher, when the shaft is made to turn. The gear can be moved to make the device usable with lathes having different spindle center distances.
    Type: Grant
    Filed: April 19, 1984
    Date of Patent: September 9, 1986
    Assignee: F.lli Cucchi S.r.l.
    Inventors: Giovanni Cucchi, Pietro Cucchi
  • Patent number: 4606235
    Abstract: A mechanism for prepositioning the input shaft of a bidirectional Geneva drive to effect incremental rotation of the output shaft of the Geneva drive, upon rotation of the input shaft, at a predictable time. The Geneva drive has an input shaft rotatable in opposite directions through active angles which respectively effect rotation of the output shaft. The prepositioning mechanism comprises a member, coupled to the input shaft, and having a pair of spaced, oppositely directed abutment surfaces. A locating pawl is selectively moved to a position to be engaged by one abutment surface when the input shaft is rotated in one direction and the other abutment surface when the input shaft is rotated in the opposite direction to angularly preposition the input shaft at a location from which rotation of such input shaft one of through its respective active angles is accurately predictable.
    Type: Grant
    Filed: September 29, 1983
    Date of Patent: August 19, 1986
    Assignee: Eastman Kodak Company
    Inventor: Robert J. Kindt
  • Patent number: 4572013
    Abstract: In an intermittent link mechanism including a driven gear engageable with a drive gear to cause a predetermined changeover operation and including a recess partly breaking the tooth train of the driven gear to intermittently breaking the linkage with the drive gear, the driven gear is integrally formed with a cam for engagement with a stopper to lock the driven gear at the disconnected position. The improvement comprises first spring biasing the stopper for continuous contact with the cam, a blocking surface and an urging corner both formed at one end of the stopper back to back with each other, an engagement surface formed in the cam for contact with the blocking surface, a slanting surface formed in the cam for contact with the urging corner, a pin formed on the driven gear and slidably received in an elongated slot formed in an changeover member, and second spring biasing the changeover member so as to apply a starting rotational force to the driven gear.
    Type: Grant
    Filed: October 12, 1983
    Date of Patent: February 25, 1986
    Assignee: Clarion Co., Ltd.
    Inventor: Tetsuro Kasukave
  • Patent number: 4571211
    Abstract: A toy pull-sled accessory for a self-propelled toy vehicle is supported for towing on a play surface by a forward friction pad and freely rotatable rear wheels. Friction with the surface is increased by a weight with a pivotally depending pawl movable along a ratchet rack from over the rear wheels toward and over the forward friction pad. Mounted for rotation on a rear wheel axle is a gear which periodically shuttles the rack forward against a rearward return bias to advance the weight.
    Type: Grant
    Filed: February 8, 1984
    Date of Patent: February 18, 1986
    Assignee: Marvin Glass & Associates
    Inventor: Wayne A. Kuna
  • Patent number: 4476735
    Abstract: A first member defines a plurality of depressions such as V-shaped notches therein and is positioned so that the V-shaped notches are adjacent another plurality of similar notches defined by a second member. The spacing of the recesses in the second member is different than the spacing of recesses in the first member. A movable ball is received in each of the recesses of the first member. A cam is positioned to alternately force one of the balls into engagement between partially aligned recesses on the first and second members forcing relative movement between the members, positioning a load connected thereto.
    Type: Grant
    Filed: September 30, 1982
    Date of Patent: October 16, 1984
    Inventor: Gill Cantwell
  • Patent number: 4336870
    Abstract: A novel torque exchange coupling for transmitting rotational mechanical power is described. The coupling includes a torque receiving member, a torque transmitting member and means for conveying rotational mechanical power between the torque transmitting and receiving members. Typically, the torque receiving member is a housing, a cam or other suitable structure which has a surface comprising a circuitous track. The linear circumference of the track is undulant with respect to its axis of rotation. The torque transmitting member is any suitable rotatable mounting means such as a rotor which is positioned in a rotational power conveying relationship with the undulant track of the torque receiving member. Alternatively, the function of the torque receiving and torque transmitting members can be reversed.
    Type: Grant
    Filed: November 26, 1979
    Date of Patent: June 29, 1982
    Assignee: Shea Inventive Designs
    Inventor: Robert H. Shea
  • Patent number: 4250761
    Abstract: In computerized tomographic apparatus having an intermittent rotational motion the scanning time can be reduced by increasing the rotation speed. However this can result in excessive forces being transmitted to the stationary mainframe of the equipment. The invention reduces that problem by balancing the forces of rotation at least in part by appropriately placed counter masses. In one embodiment the counter masses rotate and properly balance the forces. In another embodiment they move linearly and delay the application of the forces to the mainframe and transmit the delayed forces over a longer period.
    Type: Grant
    Filed: March 27, 1978
    Date of Patent: February 17, 1981
    Assignee: E M I Limited
    Inventor: James A. Lodge
  • Patent number: RE43040
    Abstract: An advancing/retracting mechanism having a pair of cams is disclosed. The advancing/retracting mechanism includes a first cam, a second cam, and a barrel. The first cam includes an angled surface and a shoe, and the second cam includes an angled surface and a slider. The shoe engages with a helical surface in the barrel, and the slider engages with a straight surface in the barrel. The first cam travels a first distance along the longitudinal axis of the barrel from a first to a second state, and the second cam travels a second distance that is greater then the first distance along the longitudinal axis of the barrel from the first to the second state.
    Type: Grant
    Filed: June 24, 2008
    Date of Patent: December 27, 2011
    Assignee: Sanford, L.P.
    Inventors: Neville E. Andrews, Andrew Bielecki