Patents Examined by Lawrence J. Staar
  • Patent number: 4744260
    Abstract: Apparatus for turning over a workpiece, such as a metal stamping, including a turnover shaft. A pneumatic piston and cylinder rotates the turnover shaft in a cammed rate of motion from an initial position to a final position. A vacuum-operated workpiece support is rotated with the turnover shaft and is adapted to engage a metal stamping to swing it with the turnover shaft. The workpiece support is connected by a gear box to the turnover shaft in such a manner that as the workpiece is swung to an upside down position, it is also rotated about a second axis with respect to the turnover shaft.
    Type: Grant
    Filed: July 18, 1986
    Date of Patent: May 17, 1988
    Inventor: Irvin D. Bond
  • Patent number: 4741220
    Abstract: In a hydrostatic pressure worm-rack device of the type comprising a worm formed with operating oil supply opening at the opposite flanks of respective teeth of the worm, opposite flanks of respective teeth of the rack being formed with oil pockets, there are provided an oil distributor mounted on one end of the worm shaft for supplying oil to mating surfaces and not mating surfaces of the teeth of the worm and rack and for supplying pilot oil to pilot oil supply ports provided for the flanks of the teeth at the opposite ends of the worm which firstly mate with the teeth of the rack.
    Type: Grant
    Filed: November 26, 1986
    Date of Patent: May 3, 1988
    Assignee: Toshiba Kikai Kabushiki Kaisha
    Inventors: Koya Watanabe, Sadaji Hayama
  • Patent number: 4724727
    Abstract: A hydraulic control system according to the present invention which features in providing an orifice fluidly disposed in a passage that allows fluid supply of hydraulic fluid pressure to a clutch in selecting a forward drive range from a neutral range and in shifting between speed ratios involving engagement of the clutch in the forward drive range, and an orifice control valve having means for providing a one-way flow bypass passage bypassing the orifice in selecting the forward drive range from the neutral range and selecting the neutral range from the forward drive range, and providing a restricted flow bypass passage bypassing the orifice in shifting between speed ratios involving engagement of the clutch. The one-way flow bypass passage prevents fluid flow therethrough toward the clutch.
    Type: Grant
    Filed: September 28, 1984
    Date of Patent: February 16, 1988
    Assignee: Nissan Motor Co., Ltd.
    Inventors: Takashi Shibayama, Kazuhiko Sugano
  • Patent number: 4641542
    Abstract: A crank 6 is connected to a prime shaft 8, a differential gear unit is coupled to the prime shaft 8, nozzles 13 and 14 for passage of wires W1 and W2 for winding are mounted to a tube 12, a rotation stopper 15 is coupled to one of facing gears of the differential gear unit, a guide rail 16 is arranged for parallel movement with the tube 12, and rotation of the crank 6 provides the nozzles 13 and 14 with swing angle and lateral displacement. The nozzles 13 and 14 perform winding while rotating around field cores 2 and 3 corresponding to the rotation angle .theta. of the crank 6.
    Type: Grant
    Filed: May 31, 1985
    Date of Patent: February 10, 1987
    Assignee: Kamei Machine Co., Ltd.
    Inventor: Masato Kamei
  • Patent number: 4598610
    Abstract: An automatic stepless transmission including a high speed gear system and a distribution gear train. An input of the high speed gear system is distributed by the distribution gear train. A high speed counter gear train and a junction gear train are provided. An output of the high speed gear system is produced through the distribution gear train, the high speed counter gear train and the junction gear train. A low speed gear system, a spring type high and low adjustment gear train and a low speed outer counter gear train are provided. An auxiliary adjustment gear train is operatively connected to the low speed gear system. An inner counter gear train is operatively connected to the low speed gear system.
    Type: Grant
    Filed: April 6, 1983
    Date of Patent: July 8, 1986
    Inventor: Young I. Kim
  • Patent number: 4579012
    Abstract: A compact actuator is disclosed in which the motor, gear reduction and motion control functions are performed by an integral array of components. Instead of having separate interconnected units to perform these functions, the integral array compacts these functions into a single unit, allowing a reduction in the overall length and total weight of an actuator capable of a given output stroke and force.
    Type: Grant
    Filed: May 4, 1983
    Date of Patent: April 1, 1986
    Assignee: Kollmorgen Technologies Corporation
    Inventors: John H. Mabie, Stephen P. Smith
  • Patent number: 4530680
    Abstract: A belt pulley and method of making the same are provided, the pulley having a hub and a peripheral groove for receiving part of an endless belt therein that is to drive the pulley or be driven thereby whereby the pulley is adapted to be rotated about the axis of the hub. The pulley has at least one passage provided with an inlet adjacent the hub and an outlet adjacent the peripheral groove whereby fluid passing through the passage from the inlet to the outlet thereof will tend to cool the pulley and/or the belt as the pulley rotates about the axis of the hub. A rotatably operable fluid flow forcing unit is carried by the pulley so as to be rotated and thereby operated in unison with the pulley and is disposed upstream from the inlet for forcing fluid into the inlet and thus through the passage as the pulley and the fluid flow forcing unit rotate about the axis of the hub.
    Type: Grant
    Filed: June 1, 1982
    Date of Patent: July 23, 1985
    Assignee: Dayco Corporation
    Inventor: Joseph P. Miranti, Jr.
  • Patent number: 4521207
    Abstract: An incrementally variable transmission, particularly suitable for a bicycle, having a variable sprocket which comprises: A drive flange and an indexing flange mounted on an axle with a pair of sprocket-segment-planets and at least a pair of idler-planets sandwiched between said flanges and forming a relatively rigid structure, the planets adapted to expand and contract in response to a relative rotation of the flanges and thereby increase and decrease, respectively, the effective diameter of the variable-sprocket.
    Type: Grant
    Filed: January 10, 1983
    Date of Patent: June 4, 1985
    Assignees: Royce H. Husted, Samuel Shiber
    Inventor: Royce H. Husted
  • Patent number: 4505165
    Abstract: The trackball device includes two supports for the trackball, each of which has a code wheel associated therewith. The journals on the end of each shaft and the bearing surfaces of the pillow block associated with the shaft are constructed to have substantially point contact and thereby minimize friction.
    Type: Grant
    Filed: June 1, 1982
    Date of Patent: March 19, 1985
    Assignee: Wico Corporation
    Inventor: Max Wiczer
  • Patent number: 4499788
    Abstract: In order to simplify the construction and to accelerate the change-over of two drive units in the case of a feeding device having a drive shaft and two gear units each drivable by a motor, which gear units are able to be connected alternately to the drive shaft such that each may alternately rotate with the drive shaft independently of the other, it is suggested that both gear units are designed as slip-on gear units and have a driven hollow shaft, that the two ends of the drive shaft each have the hollow shaft of one of the two slip-on gear units mounted around them in a manner permitting relative rotation, that the gear units are secured against rotation about the axis of rotation defined by the drive shaft and that rotary couples are provided, such that one of the hollow shafts at a time is connected to the drive shaft such that the connected hollow shaft secured against rotation relative to the drive shaft.
    Type: Grant
    Filed: July 27, 1982
    Date of Patent: February 19, 1985
    Assignee: Durr Automation+Fordertechnik GmbH
    Inventor: Gerhard Obenland
  • Patent number: 4472161
    Abstract: A first shaft is screwed with a second shaft. The first shaft is secured rotatively to a bearing through a spring and the second shaft is secured slidably to another bearing. A pushing force in a fixed direction is provided to the second shaft through the screwed portion by actuating a spring torque in a rotative direction to the first shaft, whereby a determined tension is given to a chain when a tensioner is slackened in use.
    Type: Grant
    Filed: March 3, 1981
    Date of Patent: September 18, 1984
    Assignee: NHK Spring Co., Ltd.
    Inventor: Juji Ojima
  • Patent number: 4443210
    Abstract: A tension roller for belt drives comprises a pin designed as a hollow member and a roller member supported on the pin by way of a rolling bearing, with an inner ring, rolling means and an outer ring supporting the roller member. The pin is formed by two thin-walled sleeves positioned at opposite ends of the bore of the inner ring and the rolling bearing. At least one of the sleeves is provided on the surface thereof with a radial shoulder for emplacement of the inner ring.
    Type: Grant
    Filed: June 1, 1981
    Date of Patent: April 17, 1984
    Assignee: SKF Kugellagerfabriken GmbH
    Inventors: Armin Olschewski, Manfred Brandenstein, Lothar Walter
  • Patent number: 4368647
    Abstract: A shock absorbed device for reciprocating a driven member includes a bidirectionally rotatable driving pulley, a pair of fixed pulleys between which the driven member is disposed, an oscillating pulley arranged between the driving and fixed pulleys, and at least a wire connecting all said pulleys. The oscillating pulley is mounted for free movement along a path from a neutral position centrally within its path in response to rotation of the driving pulley in either direction thereof.
    Type: Grant
    Filed: July 15, 1980
    Date of Patent: January 18, 1983
    Assignee: Konishiroku Photo Industry Co., Ltd.
    Inventor: Hirofumi Sakaguchi