Patents Examined by David W. Laub
  • Patent number: 5551929
    Abstract: A traction-type transmission which uses a differential reduction principle whereby the present transmission can generate an extremely high output shaft torque, while maintaining a relatively low tangential force through the traction contact. The traction elements of the present invention operate at a relatively high surface speed whereby a finite tangential force, transmitted through the traction contacts, represents more power through the transmission. The geometry of the mating traction elements produces a traction contact shape which is very long, in the rolling direction, and narrow in width. This traction contact geometry greatly increases the coefficient of traction, since traction is directly related to the buildup of lubricant strain in the rolling direction. In addition, this narrow traction contact shape virtually eliminates fluid shear. Thus, this traction contact shape not only increases the power capacity of the present invention, but also greatly increases its efficiency.
    Type: Grant
    Filed: April 12, 1993
    Date of Patent: September 3, 1996
    Inventor: Joseph E. Fritsch
  • Patent number: 5417620
    Abstract: A compact structure is provided for an continuously variable transmission, which provides a more direct application of both load and control forces at the pivot trunnion. Load forces are produced from within the pivot trunnion, providing more direct control over load forces and their effect on contact forces between traction rollers and toric discs. Control forces which establish the desired transmission ratio are applied to the pivot trunnion in a manner which substantially eliminates twisting and squirming of the support rollers. High efficiency in operation, and improved assembly is provided with the compact structure disclosed.
    Type: Grant
    Filed: February 28, 1994
    Date of Patent: May 23, 1995
    Assignee: The Torax Company, Inc.
    Inventors: Charles B. Lohr, William J. Heidemann
  • Patent number: 5386740
    Abstract: A rotary feed mechanism including gears provided on an outer peripheral surface of an inner ring, male threads on an outer peripheral surface of an inner ring, and an outer ring having female threads which .engage with the male threads of the inner ring. At least one male thread formed between the gears of the inner ring is engaged with a female thread provided on the outer ring, and at least one pinion engages with at least one of the gears, regardless of the axial position of the inner ring with respect to the outer ring. When the at least one pinion is rotated, the rotation is transmitted to the inner ring, and the inner ring is moved in an optical axis direction, with respect to the outer ring, in accordance with the engagement between the male and female threads.
    Type: Grant
    Filed: September 29, 1992
    Date of Patent: February 7, 1995
    Assignee: Asahi Kogaku Kogyo Kabushiki Kaisha
    Inventors: Hiroshi Nomura, Norio Sato
  • Patent number: 5385062
    Abstract: An oscillating signal light mechanism producing substantially constant angular velocity oscillation cycles of a single light is comprised of at least one signal light assembly mounted on a base for rotation of the light assembly relative to the base, a source of motive power including an output shaft rotated at a constant velocity in a single direction of rotation, and a mechanism mechanically connecting the output shaft to the signal light assembly for converting the constant velocity single direction rotation of the output shaft to cycling movements of the signal light assembly through arc segment oscillations at substantially constant angular velocity.
    Type: Grant
    Filed: January 21, 1993
    Date of Patent: January 31, 1995
    Assignee: The Ahrens-Fox Fire Engine Company
    Inventor: W. Kenneth Menke
  • Patent number: 5372051
    Abstract: A shift lever assembly adapted for use in a power transmission of an automotive vehicle, composed of a shift lever having a tubular body portion formed therein with an axial bore and provided at its lower end with a support portion to be mounted on a vehicle body structure and arranged perpendicularly to the tubular body portion and a connecting arm extending forwardly from the lower end of the tubular body portion, an operation rod slidably disposed within the axial bore of the tubular body portion and provided at its lower end with a detent mechanism for retaining the shift lever in a shifted position, and an operation knob having a grip portion connected to the upper end of the tubular body portion and an operation button assembled within the grip portion and maintained in engagement with the upper end of the operation rod.
    Type: Grant
    Filed: June 9, 1993
    Date of Patent: December 13, 1994
    Assignee: Tsuda Kogyo Kabushiki Kaisha
    Inventors: Hideki Kanematsu, Masaichi Suzuki
  • Patent number: 5370011
    Abstract: The present disclosure concerns an actuator for converting rotary movement into linear movement. The actuator comprises a prime mover turning a reduction gear assembly which, in turn, drives a mechanical transmission including a linearly moving control element. To achieve precise movement of the control element to a desired position, and to ensure the desired position is retained as exactly as possible, a reduction gear assembly which is self-locking with respect to the maximum back-driving torque exerted on the reduction gear assembly by the mechanical transmission, is combined with a low friction, non-self-locking mechanical transmission. Preferably, the reduction gear assembly is implemented in the form of a strain wave reduction gear set and the mechanical transmission element is implemented in the form of a cooperating ballscrew and ballnut.
    Type: Grant
    Filed: August 20, 1992
    Date of Patent: December 6, 1994
    Assignee: Harmonic Drive Antriebstechnik GmbH
    Inventors: Siegmar Gilges, Michael Georgi, Arnold Ries, Rolf Slatter, Karl Hammes
  • Patent number: 5370012
    Abstract: A device for convening rotational motion of a threaded shaft to linear motion in parallelism with the shaft and having a high load carrying capacity and operating efficiencies that are on the order of 98 percent (98%), with the device including a roller bearing nut for the shaft that is arranged to provide a linear motion unit (for the device) and a housing annular structure arranged to be fixed from rotation and including a plurality of circularly and concavely shaped thrust teeth of essentially "V" configuration 360 degrees (360.degree.
    Type: Grant
    Filed: March 8, 1993
    Date of Patent: December 6, 1994
    Inventor: Richard B. Stanley
  • Patent number: 5370010
    Abstract: A gear drive for shuttleless looms has an input transmission train and an outpost transmission train cooperating for converting the continuous rotational movement of the main loom drive shaft into an oscillating back and forth movement which in turn is converted into a horizontal back and forth movement of the respective gripper rod carrying a gripper head back and forth into the loom shed. The output transmission section or train has two auxiliary parallel output drive shafts, both of which are driven from a central output drive shaft. Two pinions at the free ends of the auxiliary parallel drive shaft mesh with the gripper rod, thereby distributing the drive forces over a larger surface area for reducing the wear and tear on the gripper rod and on the two parallel output drives.
    Type: Grant
    Filed: April 13, 1993
    Date of Patent: December 6, 1994
    Assignee: Lindauer Dornier GmbH
    Inventor: Wilhelm Herrlein
  • Patent number: 5370014
    Abstract: A gear change for a vehicle comprising an external box made from an aluminum alloy, a main group, a driving shaft of which is adapted to be driven by an engine of the vehicle and a driven shaft of which may be drivingly connected with the driving shaft via a plurality of pairs of gears defining different transmission ratios, and an auxiliary epicyclic group connected in cascade with the main group in which the driven shaft is loaded axially by an elastic member which maintains it in contact with an axial abutment elements to ensure its correct axial positioning upon variations in play due to differential thermal expansion with respect to the box.
    Type: Grant
    Filed: November 6, 1992
    Date of Patent: December 6, 1994
    Assignee: Iveco Fiat S.p.A.
    Inventors: Gian M. Pigozzi, Giampietro Franzini, Armando Gregori
  • Patent number: 5367916
    Abstract: A drive gear for a motor vehicle including a starter disc having a hub for attachment to a shaft of a vehicle motor for joint rotation therewith, and a drive ring which is supported on the starter disc, is provided with a plurality of holes for connecting the drive ring to a converter of the automatic transmission of the vehicle and has, in the region of the holes, protrusions which engage in corresponding recessed openings formed in the starter disc.
    Type: Grant
    Filed: March 30, 1993
    Date of Patent: November 29, 1994
    Assignee: Winkelmann & Pannhoff GmbH
    Inventors: Jurgen Bevc, Heinrich Winkelmann, Jr.
  • Patent number: 5367915
    Abstract: Varying fluid pressure varies the thickness of an elastic spacer between ball nuts of the ball screw. The spacer thickness determines opposed axial forces applied to the ball nuts. During a high-speed excursion of the screw, pressure in the elastic spacer is reduced, thus reducing friction between the ball nuts and the screw. When the screw is being fine positioned for precise operation, pressure in the elastic spacer is increased, thereby urging the ball nuts apart to eliminate play in the ball screw.
    Type: Grant
    Filed: January 23, 1991
    Date of Patent: November 29, 1994
    Assignee: Asuka Trading Co., Ltd.
    Inventor: Kouji Nishii
  • Patent number: 5363716
    Abstract: A steering column has a first steering column member movable axially relative to a second steering column member. An input shaft is connected with the steering wheel and supported on the first steering column member for pivotable movement relative to the first steering column member. A first lock locks the first steering column member in any one of an infinite number of axial positions relative to the second steering column member. A second lock locks the input shaft in any one of an infinite number of pivot positions relative to the first steering column member. A member to unlock the first and second locks has a first position in which the first lock is unlocked and the second lock is locked. The member has another position in which the second lock means is unlocked and the first lock is locked.
    Type: Grant
    Filed: April 1, 1993
    Date of Patent: November 15, 1994
    Assignee: TRW Inc.
    Inventors: John A. Budzik, Jr., Mark A. Cartwright, Mark A. Hoagland, Samuel G. Johnson, III, Murthy N. Nemani, Gerald K. Oxley, Philip S. Peterson, Gerald W. Thomas, Frederick D. Venable, Daniel L. White
  • Patent number: 5363718
    Abstract: A control device for a remote-controllable actuation device which, counter to an energy accumulator which acts on the actuation device and loads the actuation device in the direction of a limit position, can be moved into its other limit position by a flexurally weak transmission device. In order to increase user friendliness the control device is also provided with an energy accumulator which acts on the control device, the instantaneous force of the accumulator corresponding, with opposing direction of action, to the respective instantaneous force acting on the actuation device.
    Type: Grant
    Filed: October 23, 1992
    Date of Patent: November 15, 1994
    Assignee: Mercedes-Benz AG
    Inventors: Martin Ganser, Alfred Klink
  • Patent number: 5363710
    Abstract: An impact sensing apparatus is comprised of a housing having therein an inner space, and a unitary assembly independent of the housing upon constitution thereof, accommodated within the housing so as to be secured thereto, and including a frame accommodated within the inner space of the housing, a weight supported on the frame so as to be transferred upon receipt of an impact through the housing, and a firing lever pivotally mounted to the frame and set to be rotated for being extended outside the housing upon transfer of the weight.
    Type: Grant
    Filed: December 4, 1992
    Date of Patent: November 15, 1994
    Assignee: Aisin Seiki Kabushiki Kaisha
    Inventor: Kazunori Sakamoto
  • Patent number: 5363713
    Abstract: A quieted motorized servoactuator with a sub-fractional horsepower high rpm, low voltage motor driving a gear train with about 900:1 reduction overall. The motor shaft has a metal worm meshing with a first stage thermoplastic elastomeric material, preferably polyamide polyester, of a hardness not greater than 72 on the Shore "D" scale. The first stage gear has an integral pinion meshed with a second stage gear of harder thermoplastic material, preferably acetal. The second stage gear has an integral pinion meshed with an output sector gear formed of harder thermoplastic material preferably comprising polyamide filled one-third by volume with fine glass particles.
    Type: Grant
    Filed: April 29, 1993
    Date of Patent: November 15, 1994
    Assignee: Eaton Corporation
    Inventor: James E. Pearson
  • Patent number: 5363717
    Abstract: This invention relates to the bearing mount of the steering column tube (1) of a telescoping steering column in which the steering column tube (1) is supported in a housing (2) on the body with axial mobility. To produce a bearing mount without play, the steering column tube (1) is mounted to move axially in the housing (2) in a bearing bushing (3) slotted in the longitudinal direction and made of a nonmetallic material, with this bearing bushing (3) being supported on an outer contour (5) conical in cross section with frictional adhesion against an inner cone (6) of the housing (2) under axial spring load.
    Type: Grant
    Filed: February 19, 1993
    Date of Patent: November 15, 1994
    Assignee: Lemforder Metallwaren AG
    Inventors: Raimund Eichholz, Klaus Schuller
  • Patent number: 5361646
    Abstract: A locking mechanism for locking a first member in any one of an infinite number of positions relative to a second member includes a resilient members for urging the first and second members toward each other to apply a friction force between the first and second members to prevent relative movement between the first and second members. An actuator member for releasing the friction force between the first and second members has a first position in which the first and second members are prevented from moving relative to each other. The actuator member has a second position in which the first and second members are positionable relative to each other. The locking mechanism includes a handle for moving the actuator member from its first position to its second position to release the friction force between the first and second members. The resilient members is operable to move the actuator member from its second position to its first position.
    Type: Grant
    Filed: October 20, 1993
    Date of Patent: November 8, 1994
    Assignee: TRW Inc.
    Inventor: Frederick D. Venable
  • Patent number: 5359908
    Abstract: This system for reversibly transforming rotary motion into self-guided rectilinear motion has the characteristic of being achieved by symmetrically coupling at least two connecting rod-crank (108A, 108B, 107A, 107B) mechanisms, which are mutually associated by the pivots (111) of their connecting rod small ends (110) and by the engagement of identical toothed wheels (112A, 112B) fixed symmetrically into the two specific cranks.
    Type: Grant
    Filed: July 28, 1992
    Date of Patent: November 1, 1994
    Inventor: Rolando Poeta
  • Patent number: 5358459
    Abstract: A mechanic drive apparatus includes a driving shaft and a hollow rotatable housing which has a rear side mounted on one end of the driving shaft. An output shaft extends into the rotatable housing and is mounted rotatably thereto. The output shaft is aligned axially with the driving shaft. A driven gear is mounted fixedly on the output shaft and is disposed inside the rotatable housing. A pair of driven transmission shafts are disposed on opposite edges of the driven gear. Each of the driven transmission shafts is provided with a worm segment that extends into the rotatable housing and that meshes with the driven gear. A pair of intermediate shafts are mounted rotatably to the rotatable housing in a direction which is transverse to the output shaft. A small bevel gear is mounted fixedly on each of the intermediate shafts. A pair of belt drive units transmit the rotating force of the intermediate shafts to the driven transmission shafts.
    Type: Grant
    Filed: November 3, 1993
    Date of Patent: October 25, 1994
    Inventor: Hung-Chung Lin
  • Patent number: 5355982
    Abstract: A starter drive for use in machine-building and more specially in transport machine-building for starting internal combustion engines. The starter drive is with a simplified construction, increased reliability and loading capacity. The starter drive consists of plurality of wedging sprags (1), placed in rectangular unilaterally opened holes in an outer (2) and an inner (3) cages. Between the two rigid cages is disposed a smooth band cage (4). The cage (2, 3 and 4) together with the sprags (1) are disposed between the inner contact surface (5) with circular cross-section of the shaft (6) of the driving gear (7) and the outer contact surface (8) with circular cross-section, which is worked out in casing (9) of the starter drive.
    Type: Grant
    Filed: April 27, 1993
    Date of Patent: October 18, 1994
    Inventors: Dimitar B. Philipov, Valeri D. Baronov, Gavril I. Ninov, Ivan T. Penchev, Dimitar P. Valkov