Including Worm Patents (Class 74/89.14)
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Patent number: 6591707Abstract: In a geared motor, a cover plate is fitted to an opening of a housing of a geared motor. The cover plate includes an output shaft hole, a rib and a short cylindrical portion. The output shaft hole penetrates through a center of the cover plate and rotatably receives an output shaft therethrough. The rib is formed along an outer peripheral edge of the cover plate and is radially supported by the housing. The short cylindrical portion is slidably engageable with an outer peripheral surface of the output shaft for radially supporting the output shaft. An inner peripheral surface of a worm wheel is slidably engageable in line contact with a sliding ridge of a disk plate of the output shaft.Type: GrantFiled: July 16, 2001Date of Patent: July 15, 2003Assignee: Asmo Co., Ltd.Inventors: Katsuhiko Torii, Tadashi Adachi, Hirofumi Sakai, Shingo Omori
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Patent number: 6568454Abstract: A system for raising and lowering a sectional overhead door between an open position and a closed position including, a counterbalance system adapted to be connected to the door, an operator motor assembly mounted proximate to the sectional overhead door in the closed position of the sectional overhead door, at least a portion of the operator motor assembly movable between a door operating position and a door locking position, and a locking assembly (370) having an engaged position to hold the motor assembly in the operating position and a disengaged position to release the motor assembly allowing it to move to the door locking position. The system may be provided with a remote light assembly having a switchable light source in sensing communication with the operator motor such that operation of the motor activates the light source.Type: GrantFiled: November 10, 2000Date of Patent: May 27, 2003Assignee: Wayne-Dalton Corp.Inventors: Willis J. Mullet, Donald Bruce Kyle
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Patent number: 6523645Abstract: A pumping device in connection with saw chain lubrication, especially in connection with a hand-held device, e.g. a chain saw, the pumping device including a pumping house, a piston that is received in the pumping house and means to bring the piston to rotate and simultaneously perform a reciprocating motion in its longitudinal direction, the means including on one hand a worm pinion having means for driving cooperation with a prime mover and on the other hand a gear pinion mounted on the piston. The invention further relates to a worm pinion, preferably included in a device for saw chain lubrication. The invention is characterized in that the worm gear on one hand includes a spirally shaped element, prefabricated as a separate detail, and intended to cooperate with the gear pinion and on the other hand a sleeve shaped element that supports the spirally shaped element.Type: GrantFiled: December 8, 2000Date of Patent: February 25, 2003Assignee: Aktiebolagel ElectroluxInventors: Jorgen Johansson, Par Martinsson
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Patent number: 6513398Abstract: An electromotive adjustment assembly, includes at least two spindles disposed in parallel spaced-apart relationship, and a motor unit coupled in driving relationship with the spindles for operating the spindles.Type: GrantFiled: November 3, 2000Date of Patent: February 4, 2003Assignee: Dewert Antriebs- und Systemtechnik GmbH & Co. KGInventor: Horst Finkemeyer
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Patent number: 6490956Abstract: A feeding apparatus of a moved body includes: a base; a rotatable long ball screw extending in a longitudinal direction of the base; a nut member engaged with the long ball screw; a moved body mounted to the nut member; a pair of drive shafts arranged in parallel to the long ball screw and being provided with a ball screw; driving and transmitting members connecting both outer end portions of each of the drive shafts to both ends of the long ball screw; drive motors connected to both inner end portions of each of the drive shafts; and an intermediate support supporting the long ball screw and each of the drive shafts. The intermediate support is provided with a nut member which is engaged with the ball screw. Therefore, the intermediate support is moved in a longitudinal direction by rotation of the long ball screw.Type: GrantFiled: September 19, 2000Date of Patent: December 10, 2002Assignee: Amada MFG America Inc.Inventors: Hideyuki Takeishi, Gunter Becker
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Patent number: 6481306Abstract: In a geared motor, a worm wheel and an output gear are rotatably supported about and slidably engaged with a center shaft. A transmitting plate connected to the output gear transmits rotation from the worm wheel to the output gear. An O-ring is fitted around the center shaft. The O-ring is sealingly surrounded on four sides in a seal retaining portion defined by an outer peripheral surface of the center shaft, an inner peripheral surface of the transmitting plate, an end surface of an annular protrusion of the worm wheel and one end surface of the output gear.Type: GrantFiled: July 25, 2001Date of Patent: November 19, 2002Assignee: Asmo Co., Ltd.Inventors: Tadashi Adachi, Hirofumi Sakai
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Patent number: 6470766Abstract: A power transmission system for a working machine, wherein drive power is transmitted from an engine to a work-tool holding drive shaft via a reduction mechanism is provided. The reduction mechanism includes an input shaft having a first gear, and an output shaft having a second gear. The second gear has a gear portion and a cylindrical boss segment press fitted thereto, forming a torque limiter. As a result, the reduction mechanism, which has the torque limiter, has a simplified structure, enabling easy assemblage.Type: GrantFiled: January 9, 2001Date of Patent: October 29, 2002Assignee: Honda Giken Kogyo Kabushiki KaishaInventors: Yoshitaka Ohta, Tomoaki Ishikawa
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Publication number: 20020148164Abstract: The invention relates to a drive device for a hinged side window (1) of a vehicle, said drive device having an actuating drive (8) acting on a operating lever (4) via a transmission element (9), the operating lever (4) being fastened at one end to the hinged side window (1) and at the other end so as to be fixed to the body, and a reduction gear being arranged in the region of the operating lever (4), there being provision, according to the invention, for the reduction gear to be a worm gear with an involute toothing.Type: ApplicationFiled: March 20, 2000Publication date: October 17, 2002Inventors: JOACHIM BANDEMER, KLAUS WERNER
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Patent number: 6422102Abstract: A wiper drive (10, 12, 14) with a reversible geared motor (16) is fastened to a motor mounting plate (18). The driven shaft (22) of the wiper drive supports a crank (28, 30, 32), which is connected by means of at least one joint (34, 36, 38, 40) to a leaver (68, 70) of a lever mechanism. The crank is a crank plate (28, 30, 32) on which at least two adjacent joints (34, 36) for two levers (68, 70) are disposed adjacent to each other in a plane.Type: GrantFiled: April 12, 2001Date of Patent: July 23, 2002Assignee: Robert Bosch GmbHInventor: Gerd Kuehbauch
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Patent number: 6420843Abstract: A control device for an electric motor which drives a motor vehicle part which is displaceable between reference positions, which is provided with a switch unit (12) for controlling the motor, there being a ratchet wheel (14) which, when the motor vehicle part is displaced, is forced to rotate less than 360 degrees between its end positions via an eccentric gearing (10) and actuates the switch unit depending on the rotational position of the ratchet wheel, the eccentric gearing having an externally toothed internal wheel and an internally toothed external wheel (24) which is interdigitally engaged to it, the ratchet wheel being supported for wobble motion with reference to a motor-driven shaft (18) which coupled to move with the motion of the displaceable motor vehicle part and which is pivotally mounted in a gearing housing (26), the ratchet wheel forming either the internal wheel or the external wheel of the eccentric gearing, the ratchet wheel and the switch unit being located within the gearing housing.Type: GrantFiled: August 3, 2000Date of Patent: July 16, 2002Assignee: Webasto Vehicle Systems International GmbHInventor: Peter Pohl
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Patent number: 6404084Abstract: A geared electric motor for driving, for example, a window glass or a sunroof lid of the motor vehicle, which is provided with a armature shaft, reduction gears for reducing rotational speed of the armature shaft, an output shaft connected with the final section of the reduction gears through a damper, speed increasing gears connected with the output shaft, a rotor connected with the final section of the speed increasing gears, and a rotation sensor for generating a signal according to rotation of the rotor.Type: GrantFiled: August 31, 2000Date of Patent: June 11, 2002Assignee: Jidosha Denki Kogyo Kabushiki KaishaInventors: Kenichi Niki, Nobuo Yoshioka
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Patent number: 6397691Abstract: A double gear reduction drive mechanism for powering movement of a boat lifting cable for moving of a watercraft upwardly from the water to an elevated position and downwardly from the elevated position of storage to a position in the water therebelow. The device includes two gear reduction mechanisms within the same housing or within separate adjacent housings which can be connected to a drive means for powering rotational movement of a cable spool with at least one boat lift cable attached thereto. This gear drive is a direct drive system since it does not include any belts, chains or pulleys but utilizes direct engagement between two immediately adjacently positioned pairs of gears each of which reduces rotational speed to effect an increase in power, torque and accurate control of movement of boat lifting cable.Type: GrantFiled: January 25, 2001Date of Patent: June 4, 2002Assignee: Hi-Tide Sales, Inc.Inventor: Richard R. Greene
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Patent number: 6386056Abstract: A worm-gear has an electric motor, which drives a worm, which meshes with a worm-wheel. Hitherto both the motor shaft and the output shaft have been mounted in a housing which, for assembly reasons, only permits a sliding fit between the motor shaft and its bearings. In order to simplify the assembly and permit the desirable interference fit between the motor shaft and its bearings, provision is made for both bearings for the motor shaft to be arranged in a first housing part, which, when the shaft is installed, can be separated from and re-connected to a second housing part, in which two bearings for the output shaft are arranged.Type: GrantFiled: July 12, 1999Date of Patent: May 14, 2002Assignee: Mannesmann VDO AGInventors: Nouhad Bachnak, Otmar Ganser
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Patent number: 6327927Abstract: A power train for us in a motor vehicle has a prime mover (such as a combustion engine), an automated gearbox which transmits torque to the wheels of the vehicle, a friction clutch between the prime mover and the gearbox, a computerized control unit which receives signals from several sensors, and one or more actuators which operate the clutch and/or the gearbox in response to signals from the control unit. The actuator for selecting the gear ratio of the gearbox and for shifting the gearbox into and from selected gears employs two transmissions each of which has a worm gearing receiving torque from a discrete electric motor of the actuator and a spur gearing which transmits motion from the respective worm gearing to a mobile component of the gearbox. The connection between the worm and spur gearings in at least one of the transmissions can comprise a damper cooperating with one or more sensors serving to transmit signals to the control unit.Type: GrantFiled: November 15, 1999Date of Patent: December 11, 2001Assignee: LuK Getriebe-Systeme GmbHInventors: Andreas Rogg, Andreas Deimel
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Patent number: 6322146Abstract: A seat recliner that controllably adjusts the angular position of a seat back relative to a seat base structure and is responsive to remote actuation by an operator. The recliner includes a driven mechanism adapted to be connected to the seat back, a drive mechanism rotatable in a first and second direction, and a transmission assembly operably interconnecting the drive mechanism and the driven mechanism. The transmission assembly includes a gear retainer assembly and a mounting assembly. The mounting assembly is adapted to be connected to one of the seat base and seat back. The gear retainer assembly includes a gear housing formed of a polymeric material and adapted to accommodate the drive and driven mechanisms for operative interconnection, whereby rotation of a transmission rod in the first or second direction causes a recliner rod to move relative to the housing in a corresponding first and second linear direction.Type: GrantFiled: February 14, 2000Date of Patent: November 27, 2001Assignee: Fisher Dynamics CorporationInventor: Alfred J. Fisher, Jr.
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Patent number: 6315439Abstract: A headlamp adjustor which includes an adjustor output shaft that is engageable with a reflector of a headlamp assembly. The adjustor output shaft extends from a housing, and a worm gear generally in the housing is spur gearably engaged with the adjustor output shaft. Drive structure is engaged with the worm gear such that actuation of the drive structure causes at least a portion of the drive structure to thread into at least a portion of the worm gear, thereby causing the adjustor output shaft to translate relative to the housing and adjust the position of the headlamp reflector.Type: GrantFiled: May 18, 2000Date of Patent: November 13, 2001Assignee: Elco Textron Inc.Inventor: Ronald S. Denley
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Patent number: 6295848Abstract: An actuator 6 is separated from an operation section. The actuator 6 has a lock member 10 which locks or unlocks a steering shaft 7 and a lock control mechanism 15. The lock control mechanism 15 includes an actuation member which is provided so as to be movable back and forth in a predetermined direction; a second spring 14 which serves as a spring for unlocking purposes; and a lock stopper 13 provided in order to receive the spring force of the second spring 14. The actuation member 12 is actuated by a motor 16.Type: GrantFiled: December 22, 1999Date of Patent: October 2, 2001Assignee: Siemens Westinghouse Power CorporationInventor: Noriyuki Suzuki
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Publication number: 20010010175Abstract: A gear unit in which a cable, band or similar device is fitted between the drive and the output in order to transform a fast rotational movement at the drive end, which is limited in both directions, into a slow rotational movement at the output end. The cable is fastened at both ends to an oscillating intermediary single-piece divided into two segments, and rests against the outer walls of the intermediary piece and is wound around the shaft of the drive so as to transfer a driving torque. A position sensor is assigned to the inner segment of the intermediary piece, and/or a torque sensor is mounted between both segments of the intermediary piece. A fast rotational movement of the drive is transformed into a slow rotational movement without play, and provides a good synchronization characteristic.Type: ApplicationFiled: March 15, 2001Publication date: August 2, 2001Applicant: DEUTCHES ZENTRUM FUR LUFT-UND RAUMFAHRT E.V.Inventors: Johannes Dietrich, Bernd Gombert, Ingo Schefer
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Patent number: 6216394Abstract: A window lift mechanism for raising and lowering a window in a vehicle door includes a support bracket mounted to the window and a motor supported on the support bracket. A pair of parallel, vertical racks are mounted to the door and are positioned immediately adjacent the window. Pinion gears driven by the motor are supported on the support bracket and engaged with the rack to permit vertical movement of the window.Type: GrantFiled: September 21, 1998Date of Patent: April 17, 2001Inventor: Paul J. Fenelon
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Patent number: 6205612Abstract: A window wiper system for an automotive vehicle has an electromagnetic device, a rotatable member and a window wiper oscillating mechanism. In another aspect of the present invention, the electromagnetic device is an electric motor which operates in a unidirectional manner to oscillate a window wiper assembly back and forth in a normal window wiping range. The electric motor and rotatable member then reverse rotational direction to move the wiper assembly to a park position offset from the normal window wiping range.Type: GrantFiled: October 9, 1997Date of Patent: March 27, 2001Assignee: UT Automotive Dearborn, Inc.Inventors: Christopher R. Tilli, Daniel D. Kilker, Steven Reau, Robin Mihekun Miller
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Patent number: 6196507Abstract: A clamp assembly for releasably securing a cab or other truck toppers to a pick-up truck box includes master and slave assemblies mounted to a transverse section of the sidewall of the cab and spaced-apart from each other. Each assembly has an engagement member pivotable between an operative position in which the engagement member extends beneath an inwardly extending flange of the sidewall of the truck box and abuts the undersurface of the flange, and an inoperative position in which the engagement member clears the flange. A set of worm and worm gear is provided in the master assembly and a worm gear shaft extends through the master and slave assemblies to drive the engagement members in the pivotal movement. The clamp assembly is operated using a rotating tool from inside of the cab so that unauthorized removal of the cab from the truck is prevented.Type: GrantFiled: November 1, 1999Date of Patent: March 6, 2001Inventors: Yvon Morin, Kenneth J. Morey