Rotary To Or From Reciprocating Or Oscillating Patents (Class 74/25)
  • Patent number: 6868747
    Abstract: A linear drive includes a toothed belt (2) driven by direction-changing rollers (1) in the pretensioned state. The toothed belt (2) has at least one tension reinforcement. The teeth (3) of the belt (2) engage in the teeth gaps (4) of a linear toothed counterpiece (5) over a specific length. The pitch of the teeth (3) of the belt is slightly less, up to 0.8%, than the pitch of the toothed counterpiece (5) in the pretensioned state of the toothed belt (2) and during loading of the toothed belt which occurs during operation under load. The tooth flank (6) of the tooth (3) of the belt is at right angles or almost at right angles to the plane of the tension reinforcement (7) and the tooth gap (4) of the toothed counterpiece (5) is approximately 20% to 80% wider than the width of the tooth (3) of the belt. The belt teeth (3) are elastically configured compared to the high stiffness of the tension reinforcement (7).
    Type: Grant
    Filed: June 20, 2002
    Date of Patent: March 22, 2005
    Assignee: ConiTech Antriebssysteme GmbH
    Inventors: Hubert Göser, Christoph Bederna
  • Publication number: 20040261553
    Abstract: A drive system includes a rotary drive unit for rotating a shaft and a linear drive unit for moving the shaft in a linear direction. To improve efficiency and shelf life, an energy storage is mechanically connected to the shaft for biasing the shaft to seek a linear movement in opposition to the linear direction. The energy storage absorbs the kinetic energy of the shaft and releases it again subsequently.
    Type: Application
    Filed: May 28, 2004
    Publication date: December 30, 2004
    Applicant: SIEMENS AKTIENGESELLSCHAFT
    Inventors: Erich Bott, Wolfgang Schneider, Holger Schunk, Rolf Vollmer
  • Publication number: 20040222706
    Abstract: The invention relates to an electromechanical linear drive, in particular for an injection moulding machine, comprising an electric motor with a hollow-shaft rotor, open on one side, with a subsequent screw gear which converts the rotational movement of the hollow-shaft rotor into a linear movement. The hollow-shaft rotor is supported on the motor housing, at the end thereof closed by a end wall, such as to rotate, by means of a central bearing spigot projecting axially from the end wall.
    Type: Application
    Filed: January 30, 2004
    Publication date: November 11, 2004
    Applicant: Demag Ergotech GmbH
    Inventor: Georg Ickinger
  • Patent number: 6799483
    Abstract: The conversion of vibration induced rotation into translational motion is effected by engaging two threaded bodies with a gap between them and vibrating one of the bodies to induce rolling contact rotation between the threads of the bodies relative to each other and generating a net translational motion of the other body along the axis of the threads of the translating body.
    Type: Grant
    Filed: October 12, 2001
    Date of Patent: October 5, 2004
    Inventor: Patrick Andreas Petri
  • Patent number: 6794779
    Abstract: An electromechanical linear actuator that contains an electric servo motor mounted within a compact housing. A thermally conductive path of travel is provided to efficiently transfer heat out of the housing into the surrounding ambient. A further mechanism is provided for holding the stator windings of the motor in undisturbed contact with the inner wall of the housing when the motor is subjected to thermal stress. The motor is arranged to linearly position a push rod through means of a ball screw unit. The ball screw nut and the push rod ride on bearings within guideways to insure that the push rod tracks along a linear path of travel.
    Type: Grant
    Filed: December 17, 2001
    Date of Patent: September 21, 2004
    Assignee: Young & Franklin Inc.
    Inventors: Weijian Ma, Gabriel Silva
  • Patent number: 6779498
    Abstract: An internal combustion engine operating on spark-ignitable fuel, which features at least one operating mode with homogeneous charge and self-ignition, and which includes at least one intake valve and at least one exhaust valve per cylinder, which can be coupled via a transmission device in at least one operating mode of the engine, has its combustion process be controlled in a simple manner by providing that at least one exhaust valve can be actuated during the intake stroke by means of the transmission device, the transmission device having at least one first mechanical transmission member, and the transmission device being activated by a mechanical actuating device featuring an eccentric element acting on a transmission member.
    Type: Grant
    Filed: November 12, 2002
    Date of Patent: August 24, 2004
    Assignee: AVL List GmbH
    Inventors: Michael Glensvig, Franz Chmela
  • Publication number: 20040159169
    Abstract: A micro actuator including a translationally driving section having a moving portion which is incorporated in a case and moves translationally, and a displacement enlarging member having one end portion connected to the moving portion of the translationally driving section and another end portion connected to the case, wherein as the one end portion is pulled on the basis of the translational movement, the amount of displacement of its distal end is enlarged.
    Type: Application
    Filed: January 9, 2004
    Publication date: August 19, 2004
    Applicant: MITSUBISHI DENKI KABUSHIKI KAISHA
    Inventor: Naoki Muramatsu
  • Patent number: 6766704
    Abstract: Actuating system comprising an actuator with a torque-transmission element for a movable element, in particular a swing-action panel in a motor vehicle, the movable element being mounted pivotably in a basic hinge element. The actuating system has a torque support arranged functionally between the basic hinge element and the actuator, at least one key profile being made in the torque support, so that it is possible to bring about axial plug-connection assembly with the basic hinge element.
    Type: Grant
    Filed: August 7, 2001
    Date of Patent: July 27, 2004
    Assignee: Stabilus GmbH
    Inventors: Andreas Ritter, Rolf Mintgen
  • Patent number: 6721986
    Abstract: In one aspect, the present invention is directed to an electric toothbrush. The toothbrush includes a housing, an electric motor, a first transmission and a second transmission. The electric motor is connected to the housing has a motor output member for rotation about a motor output axis. The first transmission is connected to the housing, and converts rotational movement from the motor output member into rotational reciprocating movement at a first average angular speed. The second transmission is linked to the first transmission, and converts rotational reciprocating movement from the first transmission into rotational reciprocating movement at a second average angular speed about a second transmission output axis that is parallel to the motor output axis. The second transmission drives an output member to reciprocate at the second average angular speed about the second transmission output axis. A brush head is removably connectable to the output member.
    Type: Grant
    Filed: June 28, 2001
    Date of Patent: April 20, 2004
    Inventor: Qingping Zhuan
  • Patent number: 6715483
    Abstract: A telescopic linkage, in particular, for gas cooking points includes an arresting mechanism between two longitudinal telescopic bodies, one inserted inside the other in a longitudinal direction, optionally opened, by manual rotation at one linkage end, for changing the length of the telescopic linkage or for safeguarding against unauthorized or accidental switching on of a household appliance.
    Type: Grant
    Filed: March 7, 2002
    Date of Patent: April 6, 2004
    Assignee: BSH Bosch und Siemens Hausgeraete GmbH
    Inventors: Klaus Erdmann, Hubert Giraud
  • Publication number: 20040045290
    Abstract: The invention concerns a mechanism operating according to the principle which states that each point in a circle, running in the circle, describes a rectilinear hypocycloid. Said mechanism which is perfectly dynamically balanced reduces frictions to a minimum, and advantageously replaces conventional crank-rods, whereof the vibrations and frictions of the pistons pressing on the cylinders constitute major drawbacks. It can be used to produce rotary motors, capable of using any heat source, or any fuel, including hydrogen. It can also be used to produce refrigerating machines or heat pumps, using air as refrigerant, or machines for extracting water from air, using solar energy. Finally, it can be used for producing compressors, compressed air engines, hydraulic pups or engines, as well as vacuum cleaners, fans and nautical propellers.
    Type: Application
    Filed: July 1, 2003
    Publication date: March 11, 2004
    Inventor: Jacques Busseuil
  • Publication number: 20040041477
    Abstract: The invention relates to a drive unit for wiper components on motor vehicles. The rive unit includes an electric drive (10), which is accommodated in a housing (3; 32, 33). The electric drive (1) includes an armature shaft (26), on which a first toothing (4) is formed. The armature shaft (26) is axially, displaceably accommodated in the housing (3; 32, 33) and is loaded via a spring element (28). On the housing (3; 32, 33), a crown wheel or a crown wheel segment (5) is pivotally accommodated. The crown wheel or crown wheel segment (5) meshes with the first toothing (4) on the armature shaft (26) of the electric drive (1).
    Type: Application
    Filed: June 18, 2003
    Publication date: March 4, 2004
    Inventors: Jochen Moench, Achim Neubauer, Martin-Peter Bolz, Hartmut Krueger
  • Patent number: 6700248
    Abstract: A non-linear magnetic harmonic motion converter apparatus for transferring non-linear motion into rotational motion for producing work from an interaction of at least two magnetic fields. An axial shaft is disposed in rotating relationship with at least one gimbal supported magnet that reciprocates in relation to the axial shaft. At least one rotor magnet is disposed to rotate in relation to the axial shaft in response to non-linear movement of the at least one gimbal supported magnet. A plurality of rotor magnet units may be proximally disposed to rotate about separate axial shafts, with each rotor magnet unit having a rotor magnetic field influenced by the non-linear movement of the at least one gimbal supported magnet disposed proximal to each rotor magnet unit. Movement of the each gimbal supported magnet creates repulsion and attraction of each respective rotor magnet, with inducement of axial shaft rotation, thereby producing rotational movement that is harnessed to perform work.
    Type: Grant
    Filed: May 9, 2002
    Date of Patent: March 2, 2004
    Assignee: Harmonic Drive, Inc.
    Inventor: Johnny D. Long
  • Patent number: 6700231
    Abstract: A thrust converter includes reciprocation movement means 1; reciprocation-rotation conversion means 2 for converting reciprocating movement of the reciprocation movement means into rotational movement; rotation-reciprocation conversion means 7 for converting rotational movement of the reciprocation-rotation conversion means; and reaction-force receiving means 11 for supporting reaction force stemming from reciprocation movement of the rotation-reciprocation conversion means. Thrust imparted to the reciprocation movement means can be imparted to a load while being amplified or reduced, through employment of a compact and simple construction.
    Type: Grant
    Filed: December 31, 2001
    Date of Patent: March 2, 2004
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventors: Kouichi Takamune, Seiichi Mimura, Hidenobu Ito, Yoshiyuki Hatsutori, Yoshio Kasuga, Takao Mizutani
  • Patent number: 6691586
    Abstract: A micro actuator including: a translationally driving section having a moving portion which is incorporated in a case 14 and moves translationally; and a displacement enlarging member 1 having one end portion 1g connected to the moving portion of the translationally driving section and another end portion 1h connected to the case, wherein as the one end portion 1g is pulled on the basis of the translational movement, the amount of displacement of its distal end 1a is enlarged.
    Type: Grant
    Filed: June 15, 2000
    Date of Patent: February 17, 2004
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventor: Naoki Muramatsu
  • Patent number: 6684723
    Abstract: An apparatus for producing a lifting and lowering movement for lifting and lowering transverse transporting tongs of a forming machine includes a rotatable control shaft on which a control cam, a counter cam and a spring element cam are fitted. A pivotably mounted double lever has a control roller arm, a counter roller arm and a drive output arm. A control roller, rolling on the control cam, is rotatably arranged on the control roller arm and a counter roller, rolling on the counter cam, is rotatably arranged on the counter roller arm. The control cam and the counter cam act on the double lever in opposite directions of rotation. On the spring element cam there rolls a spring element roller arranged on a spring element lever. Arranged on the spring element lever is a spring element, which acts on the double lever in the same direction of rotation as the counter roller.
    Type: Grant
    Filed: January 11, 2002
    Date of Patent: February 3, 2004
    Assignee: Hatebur Umformmaschinen AG
    Inventor: Stefan Stöckle
  • Patent number: 6655228
    Abstract: The present invention discloses a dual directional power feed for use with handheld drills or stationary frame mounted power sources. The device comprises a housing, two pairs of wheel bearings rotatably mounted to the housing, a cap rotatably mounted to the housing, and a biasing bearing rotatably mounted to the cap. The cap is rotatable to a first position such that rotation of the threaded cable in a first direction causes the threaded cable to translate along its longitudinal axis in a first direction. The cap is further rotatable to a second position such that rotation of the threaded cable in the first direction causes the threaded cable to translate along its longitudinal axis in a second direction, opposite the first direction. Further, the present invention discloses a bearing and support assembly for coupling a power feed device to a power unit comprising a support plate and a bearing.
    Type: Grant
    Filed: July 6, 2001
    Date of Patent: December 2, 2003
    Assignee: Spartan Tool, L.L.C.
    Inventors: David Margherio, Donald J. Borelli
  • Patent number: 6647813
    Abstract: A drive mechanism for converting rotary movement to an oscillatory movement for operating switches, valves, pumps and light implements wherein the oscillating member is a flexible rod having a curved profile from which to attach output levers positioned in a simple manner to vary the amplitude, phase timing, and duration of stroke of individual output levers; whereby numerous output functions may be performed from a single rotary input source.
    Type: Grant
    Filed: August 23, 2001
    Date of Patent: November 18, 2003
    Inventor: Robert R. Green
  • Patent number: 6640660
    Abstract: Pick-up and placement apparatus including an arm that executes pick-up and placement motions and an arm drive mechanism. The drive mechanism comprising a driven rotating member having an appointed range of rotation, a swiveling member slidably attached to the rotating member and swiveling in an appointed range of rotation by normal and reverse rotations of the rotating member, a connection portion directly or indirectly linked with the arm, a retaining member applying a retaining force to retain the swiveling member at an appointed position in a radial direction with respect to the rotating member while slidably retaining the swiveling member, and an apparatus regulating and guiding said connection portion to linearly move the connection portion by directly or indirectly regulating the swiveling member in the vicinity of both ends of in the range of rotation.
    Type: Grant
    Filed: December 18, 2000
    Date of Patent: November 4, 2003
    Inventor: Hidehiko Kasai
  • Publication number: 20030172754
    Abstract: This invention relates to a driving device (1) comprising a drive shaft (3) that is rotatably supported in a housing, which driving device includes a position indicator for said drive shaft, wherein a cam (27) is present on the drive shaft, whose cam surface mates with one end of a feeler pin (29) which extends perpendicularly to the drive shaft, and which end is pressed against said cam surface under spring pressure (37), all this in such manner that movement of the feeler pin in its longitudinal direction, which is effected by the cam surface upon rotation of the drive shaft, provides an indication as regards the angular displacement of the drive shaft.
    Type: Application
    Filed: May 5, 2003
    Publication date: September 18, 2003
    Inventor: Floris J Groeneveld
  • Patent number: 6619146
    Abstract: A traveling wave generator includes at least a base link and end link and an intermediate link; a pivot device pivotably interconnecting each pair of links; a drive mechanism interconnecting each pair of links including a drive shaft and a cam on the first link of the pair and on the second link of the pair a follower for engaging the cam for inducing a traveling wave motion in the links; a flexible power transmission device interconnects the shafts of each of the base and intermediate links; and a motive source rotates the shafts.
    Type: Grant
    Filed: August 7, 2001
    Date of Patent: September 16, 2003
    Assignee: The Charles Stark Draper Laboratory, Inc.
    Inventor: Peter Kerrebrock
  • Patent number: 6616503
    Abstract: An animation device for integration into an animated figure having a head with a jaw. The animation device comprises a cam assembly which is cooperatively engage to the jaw of the animated figure. The cam assembly is configured for linear movement along a first axis concurrently with pivotal movement about second and third axes which extend in generally perpendicular relation to each other and to the first axis. Mechanically coupled to the cam assembly is an actuation motor which is operative to facilitate the movement of the cam assembly along the first axis concurrently with movement about the second and third axes.
    Type: Grant
    Filed: April 22, 2002
    Date of Patent: September 9, 2003
    Inventor: Peter Sui Lun Fong
  • Patent number: 6595728
    Abstract: A rigid and fragile material drilling machine is provided, its driving means for driving the upper and lower drilling bit approximating the rigid and fragile material includes a control handle; upper and lower rear gears and associated upper and lower first synchronizing wheels, said upper and lower rear gears being engaged with each other; upper and lower first timing chains being wound around said upper and lower first synchronizing wheels and upper and lower second synchronizing wheels, respectively; upper and lower second timing chains being wound around said upper and lower third synchronizing wheels and upper and lower fourth synchronizing wheels, respectively; and drilling rod guiding sleeves, the gear racks thereof being engaged with said the upper and lower front gears, respectively. The rigid and fragile material drilling machine of the present invention, which is simplified in structure with a compact design and low cost, can be conveniently used wherever a power supply is available.
    Type: Grant
    Filed: April 1, 2002
    Date of Patent: July 22, 2003
    Inventor: Zhenghua Miao
  • Patent number: 6585227
    Abstract: An actuator for use with a subsea choke or similar apparatus is disclosed. The actuator uses a planetary roller screw mechanism to allow greater control of the torque output while allowing a fast closing of the choke when well conditions require so. A handle is positioned on one end of the actuator housing for manipulation of the actuator housing by a remotely operated vehicle, when required. A pressure responsive axially reciprocable piston is positioned around the driven shaft and controls movement thereof. Other embodiments show the actuator controlling the position of the cage in a cage type choke. A final embodiment shows the actuator configured for use on a subsea tree.
    Type: Grant
    Filed: July 26, 2001
    Date of Patent: July 1, 2003
    Assignee: Cooper Cameron Corporation
    Inventors: Johnny E. Newport, Todd J. Mosley
  • Patent number: 6581524
    Abstract: A conversion device that is structured to be coupled to the rotating axle of a motor and to an output assembly. The output assembly has an elongated shaft with an axis extending generally perpendicular to the axis of the motor axle. The output assembly further is coupled to a frame to resist movement in an axial direction. The conversion device includes an eccentric hub having a disk with a sidewall extending from the perimeter thereby forming a recess and a yoke having a shaft and an attachment pin. The disk is coupled to the motor axle. The yoke shaft is disposed within the eccentric hub recess and the attachment pin is pivotally coupled to the output assembly. As the eccentric hub is rotated by the motor, the hub causes the yoke moves in a circular path. The circular path of the yoke has directional components that are parallel to the axis of the output assembly shaft and perpendicular to the axis of the output assembly shaft.
    Type: Grant
    Filed: April 12, 2002
    Date of Patent: June 24, 2003
    Assignee: Harsco Technologies Corporation
    Inventors: John Morgan, Peter Youngman
  • Publication number: 20030056611
    Abstract: A grooved cylinder (2) is alternatively mobile in two opposing cylinder guides (10, 11) mounted on a crankcase (14). This cylinder (2) is mounted coaxially inside a double crown piece of revolution (5) with an indented portion (6a) to rotate around the axis (2a) of the cylinder (2) over bearings (B2) coupled between a third groove (16) of the respective crankcase cover (14a, 14b) and the respective housing (9) of the external bases of the ends (6) of the crown (5); these cylinder (2) and crown (5) are coupled by means of bearings (B1) placed between a first groove in zigzag (3) in the side surface of the cylinder (2) and the first housings (8) in the inside of the crown (5), and other bearings (B1) placed between some straight grooves (4), also on the side surface of the cylinder (3) extending between its ends and the valleys (3a) of the first groove (3), and third housings (15) provided in the respective crankcase cover (14a, 14b).
    Type: Application
    Filed: November 4, 2002
    Publication date: March 27, 2003
    Inventor: Manuel Moreno-Aparicio
  • Patent number: 6536069
    Abstract: A vehicle wiper system is provided including a cross-vehicle shaft that drives a pair of actuation mechanisms for driving a pair of wiper assemblies. The actuation mechanisms each include a crank, a connecting rod and a lever arm, whereby the connecting rod operably interconnects the crank and lever arm. The lever arm is fixed for rotation with a wiper post, which is in turn fixed to the wiper assembly. The actuation mechanism drives reciprocal rotation of the wiper post, thereby driving reciprocal sweeping motion of the wiper assemblies. The cross-vehicle shaft is driven by a motor that is controlled by a controller.
    Type: Grant
    Filed: October 3, 2001
    Date of Patent: March 25, 2003
    Assignee: DaimlerChrysler Corporation
    Inventors: Dorinel Neag, Daniel W Husted, Brian J Rahn, Joseph E Rudelic
  • Publication number: 20030037627
    Abstract: A drive mechanism for converting rotary movement to an oscillatory movement for operating switches, valves, pumps and light implements wherein the oscillating member is a flexible rod having a curved profile from which to attach output levers positioned in a simple manner to vary the amplitude, phase timing, and duration of stroke of individual output levers; whereby numerous output functions may be performed from a single rotary input source.
    Type: Application
    Filed: August 23, 2001
    Publication date: February 27, 2003
    Inventor: Robert R. Green
  • Publication number: 20030029257
    Abstract: A traveling wave generator includes at least a base link and end link and an intermediate link; a pivot device pivotably interconnecting each pair of links; a drive mechanism interconnecting each pair of links including a drive shaft and a cam on the first link of the pair and on the second link of the pair a follower for engaging the cam for inducing a traveling wave motion in the links; a flexible power transmission device interconnects the shafts of each of the base and intermediate links; and a motive source rotates the shafts.
    Type: Application
    Filed: August 7, 2001
    Publication date: February 13, 2003
    Inventor: Peter Kerrebrock
  • Patent number: 6505659
    Abstract: A support mechanism for a router comprises a plate having top and bottom sides and an opening therethrough, and a carriage supported in suspension beneath the plate for supporting a router coaxial with the opening. A pair of guide posts slidably support the carriage for axial displacement toward and away from the plate, and a pair of adjusting screws which are rotatable relative to said plate interengage with the carriage for rotation of the screws to displace said carriage relative to the plate. Each of said guide posts has a post axis and each of the adjusting screws has a screw axis, the axes of the posts, and adjusting screws are coplanar with one another and with the opening axis. The adjusting screws are rotated simultaneously by a sprocket wheel and sprocket chain drive train on the bottom side of the plate.
    Type: Grant
    Filed: March 20, 2002
    Date of Patent: January 14, 2003
    Inventor: Richard M. Hummel
  • Patent number: 6494434
    Abstract: A butterfly valve comprises a valve housing with a valve opening and a valve seat, this valve housing enclosing a vacuum area of the valve; a valve plate which is mounted at a valve rod guided through the valve housing and which is pressed against the valve seat in a closed position of the valve, tilted relative to the valve seat in a partially open position of the valve through tilting of the valve rod about a tilting axis, and tilted and rotated relative to the valve in a completely open position of the valve by subsequent rotation of the valve rod about its longitudinal axis; wherein the valve rod has portions extending on both sides of the tilting axis, the portion located on one side of the tilting axis acting centrally at the valve plate and the portion located on the other side of the tilting axis being connected, via a link guide which is located outside the vacuum area and which has a link with a part extending at an inclination to the longitudinal axis of the valve rod and a helical surface-shaped p
    Type: Grant
    Filed: July 12, 2001
    Date of Patent: December 17, 2002
    Assignee: VAT Holding AG
    Inventor: Friedrich Geiser
  • Patent number: 6490941
    Abstract: An elliptic motion driving apparatus for a step screen in which the elliptic motion of an elliptic motion driving unit is transferred to a driven link so as to make steep movable plates, connected by a movable column, perform elliptical movement in a longitudinal direction of the movable column, includes a driving rotation cam combined to a power transmission shaft rotating in linkage with a worm reduction gear of a driving motor, a horizontal motion eccentric shaft axially combined to the driving rotation cam so that a horizontal eccentric bearing of the horizontal motion eccentric shaft moves horizontally along a horizontal motion guiding rail, and a vertical motion eccentric shaft combined to the horizontal motion eccentric shaft through an eccentric rotation cam so that a vertical eccentric bearing of the vertical motion eccentric shaft moves vertically along a vertical motion guiding rail as the horizontal motion eccentric shaft rotates.
    Type: Grant
    Filed: March 28, 2000
    Date of Patent: December 10, 2002
    Inventor: Sung Hur
  • Patent number: 6474287
    Abstract: A reciprocating mechanism for use in an engine comprises a reciprocating member which is movable in a substantially linear reciprocating direction between two ends of travel, a piston provided on the reciprocating member, and a constant breadth cam and follower, the follower being coupled directly to the reciprocating member to translate linear movement of the reciprocating member into rotary motion of the cam, and the mechanism being such that movement of the reciprocating member at the two ends of its travel is reversed in dependence upon the rotation of the cam, the follower lying to the side of the piston bore and the piston being rigidly mounted to the reciprocating member.
    Type: Grant
    Filed: December 10, 2001
    Date of Patent: November 5, 2002
    Inventor: Alan Roger Babington
  • Publication number: 20020158520
    Abstract: A thrust converter includes reciprocation movement means 1; reciprocation-rotation conversion means 2 for converting reciprocating movement of the reciprocation movement means into rotational movement; rotation-reciprocation conversion means 7 for converting rotational movement of the reciprocation-rotation conversion means; and reaction-force receiving means 11 for supporting reaction force stemming from reciprocation movement of the rotation-reciprocation conversion means. Thrust imparted to the reciprocation movement means can be imparted to a load while being amplified or reduced, through employment of a compact and simple construction.
    Type: Application
    Filed: December 31, 2001
    Publication date: October 31, 2002
    Inventors: Kouichi Takamune, Seiichi Mimura, Hidenobu Ito, Yoshiyuki Hatsutori, Yoshio Kasuga, Takao Mizutani
  • Patent number: 6454544
    Abstract: A pump for conveying a liquid has a housing and a shaft rotatably supported in the housing. An eccentric drive is arranged in the housing. At least one drive element is provided and is configured to be driven by the eccentric drive. The shaft is configured to adjust the eccentricity of the eccentric drive. The drive element is configured to be adjusted according to the eccentricity of the eccentric drive by a translatory movement in a direction transverse to the shaft.
    Type: Grant
    Filed: December 18, 2000
    Date of Patent: September 24, 2002
    Assignee: Hydraulik-Ring GmbH
    Inventors: Edwin Palesch, Gerold Sluka, Ralf Naumann
  • Publication number: 20020088295
    Abstract: The escapement includes first (3) and second (4) escapement wheels meshing with each other, one of these wheels being driven by the gear train. It further includes a lever (5) capable of receiving the impulses generated alternately by the first and second wheels and to transmit these impulses to a plate (2) which carries a sprung-balance. The lever is arranged to lock alternately the first and second wheels after each impulse transmitted.
    Type: Application
    Filed: December 19, 2001
    Publication date: July 11, 2002
    Applicant: ULYSSE NARDIN S.A.
    Inventor: Ludwig Oechslin
  • Patent number: 6386304
    Abstract: An electric vehicle having a steering assembly, a front wheel assembly, and an electric drive assembly. The steering assembly includes a rotatably mounted steering shaft and a steering hand mounted at an upper end of the steering shaft. The front wheel assembly includes a base member attached to a lower end of the steering shaft, a pair of front wheels, and a transmission operatively associated with the front wheels and configured for propelling the vehicle by driving the pair of front wheels when the steering shaft is rotated in an oscillating manner. The electric drive assembly includes a driving disc connected to an output shaft of an electric motor, a driven disc coaxially mounted on the steering shaft, and a driving arm having a first end rotatably connected to the driving disc and a second end rotatably connected to the driven disc for converting rotary movement of the driving disc to oscillating movement of the driven disc. A locking member selectively connects the driving arm to the driven disc.
    Type: Grant
    Filed: July 18, 2001
    Date of Patent: May 14, 2002
    Inventor: Jar Chen Wang
  • Patent number: 6354814
    Abstract: The inventive device consists of a disk which can be rotated around a central axis, a wobble pin which is mounted in the disk so that can rotate around an axis which is arranged at an angle in relation to the plane, of said disk, a swivel pin which is secured to the wobble pin at an angle in relation to the axis thereof, and a fastening device which prevents the swivel pin from rotating around the axis of the disk. This mechanism forms a gear enabling a rotational unidirectional movement to be translated into a back-and-forth movement in applications where limited height is available. The preferred area of application is in implantable blood pumps.
    Type: Grant
    Filed: March 24, 2000
    Date of Patent: March 12, 2002
    Inventors: Ralf Kaufmann, Christoph Nix, GĂĽnter Rau, Helmut Reul
  • Patent number: 6330835
    Abstract: A reciprocating scotch yoke drive mechanism connectable to a motor drive shaft, includes a yoke member connectable to the shaft which moves the yoke member in a linear reciprocating motion and a guide having one or more slide tracks configured to define a reciprocal sliding path for the yoke member. The yoke member also has a sliding formation configured for slidingly engaging the slide track. And the sliding formation and the slide track have complementary configurations for maintaining alignment of the yoke member during reciprocal sliding motion and engagement of the yoke member in the slide track under a variety of angular stresses.
    Type: Grant
    Filed: January 6, 2000
    Date of Patent: December 18, 2001
    Assignee: U.S. Filter Corporation
    Inventors: Stephen Andrew Klava, Justin Blair Bearak
  • Publication number: 20010035149
    Abstract: A hypocycloid gear assembly for converting pure linear motion to rotational motion having a pinion shaft, a pinion carrier, and a ring gear. The pinion shaft has a pinion journal which moves in a purely linear direction. A pinion body is connected to the pinion journal and is offset therefrom. The pinion body is placed inside a carrier body of the pinion carrier. The pinion body rotates around the center of axis of the carrier body, causing the carrier body to rotate on its own axis. An output shaft, whose centerline coincides with the centerline of the carrier body, rotates on its own axis and has a purely rotational motion.
    Type: Application
    Filed: February 7, 2001
    Publication date: November 1, 2001
    Inventor: Randall Wiseman
  • Patent number: 6279409
    Abstract: A wiper bearing has a bearing shell and a shaft, which is received by the bearing shell and is connected at one point to a drive mechanism and has a receptacle for wiper arm. The bearing shell concentrically grips a region of the shaft and forms a first axis, which forms an angle with a second axis that extents through a region having a receptacle of the shaft.
    Type: Grant
    Filed: September 3, 1999
    Date of Patent: August 28, 2001
    Assignee: Robert Bosch GmbH
    Inventor: Richard Knauf
  • Patent number: 6244078
    Abstract: Bearing fretting conditions are eliminated in washing machines by providing a drive system in which the bearings are not loaded during the spin mode. The drive system includes an input shaft and first and second hubs rotatively mounted about the input shaft. The second hub is movable along the input shaft between a first position adjacent to the first hub and a second position displaced from the first hub. The drive system spins the washing machine's basket when the second hub is in its first position and oscillates the agitator when the second hub is in its second position. A brake disk is mounted to the second hub for movement therewith, and a brake surface is fixedly mounted to the washing machine adjacent to the brake disk so that the brake disk contacts the brake surface when the second hub is in its second position. Separation of the two hubs is accomplished by ball bearings which are unloaded when the second hub is in its first position.
    Type: Grant
    Filed: December 29, 1998
    Date of Patent: June 12, 2001
    Assignee: General Electric Company
    Inventors: Robert Alan Thompson, Sudhir Dattatraya Savkar
  • Publication number: 20010002554
    Abstract: The invention relates to an adjusting device for a vehicle seat with a silent ratchet. The silent ratched includes a first ratchet portion and a second ratchet portion. The first ratchet portion has an inner lining which is defined by a rotating body. The second ratchet portion is a) arranged so as to oppose the first ratchet portion and to be capable of rotating about an axis of the inner lining and b) which carries at least one clamping lever capable of pivoting about an axis of the clamping lever. The clamping lever has a clamping area located in a neighborhood of the inner lining. An actuating device for the clamping lever being provided so that the clamping lever may be pivoted in a controlled manner between a normal clamping position in which the lever is frictionally engaged with the inner lining, a non rotatable connection of the two ratchet portions being provided thereby, and a release position, in which the clamping area is located at a distance from the inner lining.
    Type: Application
    Filed: December 1, 2000
    Publication date: June 7, 2001
    Applicant: C. Rob. Hammerstein & Co. KG
    Inventors: Burckhard Becker, Robert Houston
  • Patent number: 6227152
    Abstract: There is described an internal combustion engine comprising at least one cylinder and a crankcase (5), which together with the cylinder forms a common, circular cylindrical tubular body (1), and comprising an oscillating piston (7) rotatably mounted about the cylinder axis and separating a cylinder space (4) defined by radial walls (3) from the crankcase (5), which oscillating piston is in drive connection with a crankshaft (16) parallel to the cylinder axis via a connecting link guide (17) for at least one crank pin (18) of the crankshaft (16), which is provided on the crankcase side of the oscillating piston (7). To create advantageous constructional conditions, it is proposed that the crank pin (18) is supported on the connecting link guide (17) via a roller (19), and that the tubular body (1) forming the cylinder and the crankcase (5) is thermally insulated to the outside.
    Type: Grant
    Filed: June 8, 1999
    Date of Patent: May 8, 2001
    Inventor: Walter Freller
  • Patent number: 6215956
    Abstract: An electric heater with a post and a heating member; which comprises an orientation device comprising a pole or spindle fixed on the post; a movable plate formed with front and rear holes and rotatably mounted on the pole or spindle through its front hole, carrying the heating member; a geared motor with a shaft extending downwardly through the rear hole of the movable plate; a transmission plate formed with mating teeth on the upper surface and rotatably fixed to the lower end of the motor shaft; a driving plate carrying a guide pin on or near its lower edge and formed with mating teeth on its bottom surface to be engaged with the counter part of the transmission plate; a spring mounted around the motor shaft under the movable plate for elastically pressing the driving plate downwardly; and an elongate guide path formed on the post for receiving the guide pin and allowing it to reciprocate straightly therein, for automatically and easily converting the direction of heat reflection of the reflector is disclos
    Type: Grant
    Filed: May 3, 2000
    Date of Patent: April 10, 2001
    Assignee: Gana Multi-Technology Co. Ltd.
    Inventor: Jang Bum Lee
  • Patent number: 6199438
    Abstract: In a drive mechanism for a windshield wiper, a switch disk for realizing a park position switch is supported so as to be independently rotatable relative to an output gear of a gear unit. The output gear and the switch disk are coupled with each other via a coupling device, with the coupling device acting as an engaging device carrying the switch disk along, in one direction of rotation only. In order to lower an axial dimension of the gear unit, the disk is rotatably supported on a sleeve, through which an output shaft extends so that the end of the shaft can support itself directly on a housing lid.
    Type: Grant
    Filed: November 20, 1998
    Date of Patent: March 13, 2001
    Assignee: ITT Manufacturing Enterprises, Inc.
    Inventors: Rolf Ade, Hubert Scheele, Bernd Walther, Martin Csermak
  • Patent number: 6192769
    Abstract: A gearhead assembly between a drive shaft and an output shaft of a trimmer arranged parallel but staggered to one another, includes a bearing shaft extending perpendicularly between the drive shaft and the output shaft. The bearing shaft has a first end supported in the first housing part and a second end supported in the second housing. A central gear is mounted on the bearing shaft. A clamping device has a clamping shaft that has a first and a second opposed ends engaging the first and second housing parts. The second housing part together with the output shaft is pivotable about the bearing shaft relative to the first housing part in a plane parallel to the axial direction of the drive shaft. The bearing shaft is a hub, and the clamping shaft penetrates the hub.
    Type: Grant
    Filed: December 2, 1998
    Date of Patent: February 27, 2001
    Assignee: Andreas Stihl AG & Co.
    Inventors: Thomas Stark, Stephan Ostendorf
  • Patent number: 6142029
    Abstract: An axoid force mechanism has first and second end elements, at least one of the end elements being arranged for progressive movement. First and second stocks are respectively on the first and second end elements, the first and second stocks respectively having first and second supporting surfaces that are at least portions of circular cylinders. A first intermediate member has first and second supporting surfaces that are at least portions of circular cylinders respectively engaged with the first and second supporting surfaces of the first and second stocks for rolling thereon when the one of the end elements moves progressively.
    Type: Grant
    Filed: January 22, 1999
    Date of Patent: November 7, 2000
    Assignee: Evgenny Alexeevich Don
    Inventors: Evgenny Alexeevich Don, Florid Borisovich Kim, Leonid Borisovich Kim
  • Patent number: 6109071
    Abstract: A transmission mechanism of a needle platform of a knitting machine is provided with a three-way master transmission shaft and two three-way slave transmission shafts which are provided with an eccentric actuation seat which is connected with the needle platform by a connection rod in conjunction with a radial bearing. A transmission mechanism of a weft seat of the knitting machine is provided with a transmission wheel, a fastening seat, an eccentric shaft, and actuation crank for bringing about an eccentric motion to convert the transmission power into a linear motion.
    Type: Grant
    Filed: September 16, 1999
    Date of Patent: August 29, 2000
    Inventor: Ming-Hong Tsai
  • Patent number: 6105447
    Abstract: The invention provides an eccentric wherein the amplitude of reciprocation, or throw, is continuously variable, during operation, from zero to a maximum. This represents an improvement over adjustable eccentric devices in the prior art insofar as the conventional devices needed to be shut down and physically reconfigured to adjust the throw of the reciprocating arm. The invention will be of use in many functions, including precision farming applications.
    Type: Grant
    Filed: June 17, 1998
    Date of Patent: August 22, 2000
    Inventor: Orville J. Linn