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| Number | Title | Issue Date |
| 7938035 | Actuating device for a vehicle transmission An actuating device for a transmission of a vehicle, particularly a commercial vehicle, a bus, or the like, moves a trip cam of the transmission forward or backward in the longitudinal direction, and in the transverse direction in one direction or the other transver... | 05/10/2011 |
| 7337721 | Adjustable die fixture for a printing press An apparatus and methods for the adjustment of the position of a die in a printing press are disclosed. The apparatus and methods provide for the adjustment of a die frame within a chase. The chase defines a horizontal and a vertical axis. The die frame is slidably ... | 03/04/2008 |
| 7259492 | Rotor axial activation modulation of electric machinery due to reverse torque The invention involves installation of a helical nut structure, or a helical nut and ball or roller bearing structure, between an electric machinery transmission shaft and a driven transmission element. Depending on the torque between the electric machinery rotor, a... | 08/21/2007 |
| 7210379 | Rigging tool A rigging tool for use with a turnbarrel for joining ends of cables together in which the rigging tool has a first gripping member with a receptacle suitable for receiving a terminal end of a cable therein, a second gripping member having a receptacle suitable for r... | 05/01/2007 |
| 7143661 | Leadscrew mechanical drive with differential leadscrew follower structure and brake A leadscrew mechanical drive includes a leadscrew having a leadscrew axis and a leadscrew thread with a nonzero leadscrew thread pitch. A leadscrew follower structure is engaged to the leadscrew. The leadscrew follower structure includes a first leadscrew follower a... | 12/05/2006 |
| 7073406 | Screw and nut transmission and cable attached to the screw A cable or another longilinear transmission component is set into the center of an axial cavity of a screw belonging to a screw and nut movement conversion unit. By means of this arrangement, bending moments exerted on the screw between the point of attachment of th... | 07/11/2006 |
| 7007566 | Actuator for a motor vehicle transmission An actuator for an automated transmission in a motor vehicle drive train has a central actuating shaft with a shift finger. Two sleeves are supported concentrically on the actuating shaft and can be driven in mutually independent rotation. Two grooves of opposite he... | 03/07/2006 |
| 6968752 | Drive shaft moving device A drive shaft moving apparatus of the present invention includes a drive shaft 1 with a screw groove 3 formed in spiral shape, and a nut 5 fitted around the drive shaft 1 and being rotatably supported on a main flame 15 so as to al... | 11/29/2005 |
| 6349606 | Reduced backlash translating system Apparatus embodying the invention includes first and second motors coupled to a carriage assembly for moving the carriage assembly back and forth between first and second end points. The first motor is for developing a force to drive the carriage in one d... | 02/26/2002 |
| 5704250 | Ball screw drive with dynamically adjustable preload A threaded ball screw is stationarily non-rotatably mounted in a machine tool to extend parallel to the line of action traversed by a carriage. A pair of threaded ball nuts are laterally restrained in and mounted for free rotation thereof in a drive mecha... | 01/06/1998 |
| 5649451 | Compact mechanism for creating simultaneous rotary and linear motion A compact mechanism for producing simultaneous rotary and linear motion for a machine tool includes a drive shaft having a spline race and helical race coextensive over at least a portion of its length. The compact mechanism includes a first motor coupled... | 07/22/1997 |
| 5647245 | Drive apparatus having a ball screw using ultrasonic motors concentric with its nuts A drive apparatus equipped with a ball screw and a plurality of nuts achieves compact size while maintaining output. The above-mentioned effect is obtained by employing ultrasonic motors, concentric with the nuts and ballscrews, which are flat and able to... | 07/15/1997 |
| 5540113 | Drive apparatus equipped with a ball screw A drive apparatus equipped with a ball screw and has nuts fitted onto a screw shaft to be approaching each other. Ends of the nuts are coupled to each other while being able to rotate freely with respect to each other. The screw shaft has two opposing thr... | 07/30/1996 |
| 5327795 | Ball screw apparatus A ball screw apparatus having a revolving position detector for detecting revolutions of a ball screw nut and a ball spline nut and a number-of-revolutions altering means for issuing a command to decrement or increment the number of revolutions of the bal... | 07/12/1994 |
| 5231888 | Ball screw device with internal motors A ball screw device with internal motors comprises a shaft provided with a ball screw groove and a ball spline groove, a ball screw nut threaded on the shaft with balls interposed therebetween, a ball spline nut threaded on the shaft with balls interposed... | 08/03/1993 |
| 5228353 | Ball screw device A ball screw device has a ball screw nut and a ball spline nut, both mounted on a shaft. Both the nuts are supported on a housing with ball bearings interposed therebetween. Inner race grooves of the ball bearings are formed on outer peripheral walls of t... | 07/20/1993 |
| 5203222 | Motion converting mechanism A motion converting mechanism comprising a feed member provided with a screwed portion, a screw nut member engaging with the screwed portion of the feed member, a support member rotatably supporting the feed member and the screw nut member, drive means fo... | 04/20/1993 |
| 5146802 | Drive system Both ends of a main shaft are fixed so as not to rotate, so a rotatable moving body can be moved along the main shaft when a screw-rotor is rotated on the main shaft and a spline-rotor does not rotate thereon. The rotatable moving body can be rotated on t... | 09/15/1992 |
| 5121647 | Composite motion guiding unit and composite motion guiding apparatus incorporating same A composite motion guiding unit comprises a shaft provided with helical ball screw grooves formed in the outer peripheral surface thereof and ball spline grooves formed in the outer peripheral surface thereof so as to extend in the axial direction of the ... | 06/16/1992 |
| 4939946 | Composite motion guide device A composite motion guide unit comprises a single shaft having ball screw groove and a ball spline groove in an outer peripheral surface thereof in an overlapped manner, a nut mounted on the shaft through a number of balls, and a spline outer sleeve mounte... | 07/10/1990 |
| 4920814 | Apparatus for operating a shaft Apparatus is disclosed for imparting to a shaft either rotation or translation or both, by the rotation of one or both of two gears within the apparatus. Translation is provided by the rotation of a first gear having internal threads, which threads match ... | 05/01/1990 |
