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"I hate what they've done to my child...I would never let my own children watch it. "
Vladimir Zworykin, television pioneer ; Talking about an invention in which he played a critical role.
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| Number | Title | Issue Date |
| 8051729 | Screw device and method of manufacturing the same The present invention provides a screw device which takes a heavy load in one direction along the axis of the screw shaft and only a light load in the opposite direction, the screw device capable of providing ease of control of preloading. The screw device of... | 11/08/2011 |
| 8028594 | Nut with flexible gripping fingers and apparatus A nut and lead screw assembly that includes a nut are provided. The nut includes at least one flexible finger for adjusting the engagement of a threaded portion of the nut with corresponding threads of a lead screw. The threaded portion is preferably formed of a dif... | 10/04/2011 |
| 7841251 | Antiback-lash nut In a preferred embodiment, an apparatus, including: a first nut half (40) and a second nut half (42) each having internal threads (50, 52) complementary with threads on a screw inserted therein; the first nut half (40) and the second nut ... | 11/30/2010 |
| 7587954 | Ball screw Ball screw having a spindle nut (2) arranged on a spindle (1), together with balls (3) which are arranged in a series and are capable of rolling in a helical ball track (4), the helical ball track (4) being defined by a thread groo... | 09/15/2009 |
| 7562596 | Fixed torque preload piece A fixed torque preload piece is positioned between two nuts of a ball screw, the preload piece is formed with through hole located in an axial direction of the two nuts for receiving at least two steel balls. Two terminal openings of each of the through holes are de... | 07/21/2009 |
| 7552657 | Long-span lead screw assembly with anti-backlash nut A lead screw assembly having a lead screw rotatable within a hollow tubular portion of a reinforcing rail. A nut engages with threads of the lead screw and is movable along the reinforcing rail. The lead screw includes plurality of first threaded portions having an ... | 06/30/2009 |
| 7506557 | Anti-backlash nut An anti-backlash nut mechanism includes two segmental nuts composing a nut which are not separated when the nuts are disengaged from a male screw. An anti-backlash nut has a main nut and a trailing nut which can be engaged with a common male screw, a coil spring for... | 03/24/2009 |
| 7337688 | Two-part, low-backlash spindle nut Apparatus for screw transmission on a spindle comprising a nut having at least a first and second part with internal threads, at least one bore in the first and second parts, and at least one spring located within the at least one bore of the first and second parts ... | 03/04/2008 |
| 7241034 | Automatic directional control system for vehicle headlights A structure and method for operating a directional control system for vehicle headlights that is capable of altering the directional aiming angles of the headlights to account for changes in the operating conditions of the vehicle. One or more operating condition se... | 07/10/2007 |
| 7226266 | Rear loading roof top transporter A roof rack assembly is provided for storing items above a roof of a motor vehicle. The roof rack assembly includes a pair of rails fixedly secured to the roof, parallel to each other. Each of the rails has a channel therealong. A tray includes a first end slidingly... | 06/05/2007 |
| 7219570 | Long-span lead screw assembly with anti-backlash nut A lead screw assembly having a lead screw rotatable within a hollow tubular portion of a reinforcing rail. A nut engages with threads of the lead screw and is movable along the reinforcing rail. The lead screw includes plurality of first threaded portions having an ... | 05/22/2007 |
| 7207722 | Combined bearing A combined bearing includes a main body (10) and a mating member (30). The main body is generally cylindrical, with an axial hole (16) and a cutout (18) defined therein. The cutout is generally semi-cylindrical and spans from an outer sur... | 04/24/2007 |
| 7127791 | Split nut for use with a rod having dual directional screw threads about a common diameter A docking apparatus for printed circuit boards including a cassette housing defining a housing cavity for containing a printed circuit board (PCB) and a linkage mechanism associated with the cassette housing. The linkage mechanism includes a linkage arm pivotally co... | 10/31/2006 |
| 7047783 | Auxiliary adjusting device for rolling mill stand An auxiliary adjusting device for a rolling mill stand includes a adjusting shaft, a cylindrical member forming an adjusting spindle and having a first outer thread cooperating with the inner thread of a support sleeve fixedly connected to the cross-beam, and a cent... | 05/23/2006 |
| 7037060 | Shrinkage compensator for building tiedowns An automatic, self-energized, length extending, take-up unit for general use in wall hold down systems. The take-up unit is generally installed as a separate element, independent of threaded retaining elements of a hold down system. One embodiment includes an intern... | 05/02/2006 |
| 7021417 | Vehicle steering apparatus In a vehicle steering apparatus, a rotating cylinder supported by a rack housing is threadingly engaged via rolling elements with a screw shaft integrated with a rack which meshes with a pinion which rotates by steering operation. The rotating cylinder is driven by ... | 04/04/2006 |
| 7017437 | Ball screw In a ball screw drive comprising a spindle (1), a nut (3) surrounding the spindle (1), and balls (4) arranged between the spindle (1) and the nut (3), which balls (4) are in rolling contact with a screw track (2 | 03/28/2006 |
| 7004607 | Motorized lamp adjuster A motorized adjuster for adjusting the aim of a lamp having a housing, motor, and control rod. The control rod passes through the motor. An anti-rotation gear is positioned inside the housing. The control rod passes through the gear. A flex point is positioned insid... | 02/28/2006 |
| 6991414 | Fastener assembly A fastener assembly for making it easier to tighten and loosen the fastener in confined work spaces. The fastener assembly includes a first end-cap member having a head member, a first boss-like member being attached to a side of the head member, a male extended por... | 01/31/2006 |
| 6968753 | Vibration-dampening base for ball-type lead screw of load port transfer system A vibration-dampening base for a ball-type lead screw of a load port transfer system is disclosed. A load port transfer system includes a vertical arm drive motor assembly, a ball-type lead screw, and a vibration-dampening base connecting the vertical arm drive moto... | 11/29/2005 |
| 6941817 | Shaft delashing method and assembly with wireless interface A delashing assembly includes a tightening device for tightening a nut in relation to a main shaft supported on bearings and a wireless interface, wherein torque information is received by the tightening device over the wireless interface. A main shaft and main nut ... | 09/13/2005 |
| 6931960 | Leadscrew mechanical drive with differential leadscrew follower structure 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 preferably having two leadscrew followers is engaged to the leadscrew. Each leadscrew follower incl... | 08/23/2005 |
| 6914754 | Head feeding mechanism A head lift body (42) with a head assembly (30) mounted thereon has a nut (45) engaged with a lead screw (41). The head lift body has an integral structure formed by resin molding with a through hole, a hollow opening, and a guide portion... | 07/05/2005 |
| 6883396 | Wire-wound leadscrew assembly with a preloaded leadscrew wire nut, and its fabrication A leadscrew assembly has a wire-wound leadscrew driven by a mechanical drive. A preloaded leadscrew wire nut assembly serving as a leadscrew follower includes a first wire nut having at least one turn of a first-nut wire overlying and engaged to the groove between t... | 04/26/2005 |
| 6827310 | Apparatus and method for fin actuation in a portable missile A fin actuator for a portable missile and a method of using the same. One aspect of the present invention includes a fin or wing actuator that meets very strict criteria to fit within a compact, portable missile while substantially limiting backlash. Another aspect ... | 12/07/2004 |
| 6698301 | Screw drive with rolling elements, and method of assembly A screw drive with rolling elements, optionally a ball screw drive, includes a screw spindle with a spindle axis and a double nut running on the screw spindle, with two separately formed single nuts which are substantially rigidly joined in the direction ... | 03/02/2004 |
| 6685382 | Screw actuator A screw actuator comprises a rotatable input member and a non-rotatable primary output member, wherein the input member is provided with a screw thread formation within which a plurality of spherical members are received to provide a ball screw coupling b... | 02/03/2004 |
| 6564660 | Ball screw feed mechanism A casing of a ball bearing which holds a ball screw can be displaced on a supporting stand against urging force of a compression coil spring and a tensile coil spring. If vibration of the ball screw is transmitted to the casing, the casing attempts to mov... | 05/20/2003 |
| 6520038 | Drive device, for a movable part, in particular a hinged side window of a vehicle A drive device for a moveable part, in particular a hinged side window of a vehicle, with an actuating drive and with a threaded piece which is driven by the actuating drive and which meshes with an associated threaded piece, the associated threaded piece... | 02/18/2003 |
| 6516680 | Power steering apparatus A power steering apparatus comprises a rotary cylinder supported with its movement in the axial direction restrained and rotated coaxially with the steering shaft by the force a transmitted from the motor for assisting steering, a plurality of feed rings ... | 02/11/2003 |
| 6499369 | Rack ball nut interface A ball nut drive assembly includes a ball nut having a bore extending axially therethrough, a ball screw extending through the bore of the ball nut and being cooperatively engaged with the ball nut, and a spring compliant member received on the ball screw... | 12/31/2002 |
| 6422101 | Reinforced lead screw with springless anti-backlash nut An anti-backlash nut assembly is on a reinforced lead screw having a threaded lead screw rotatable about a central axis. A hollow, elongated reinforcing rail extends lengthwise of and surrounding the lead screw. The reinforcing rail has a slot extending l... | 07/23/2002 |
| 6415673 | Reinforced lead screw with anti-backlash nut An anti-backlash nut is assembled on a reinforced lead screw for bilateral motion lengthwise of the lead screw as the screw is rotated. A hollow, elongate reinforcing rail extends lengthwise of and surrounds the lead screw. A slot in the rail extends leng... | 07/09/2002 |
| 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 |
| 6318204 | Helical gear Screw mechanism having a spindle (1) which is secured in the axial direction and has a spindle axis (1'), and a spindle nut (5) which is connected to a slide (7) which can be driven and is guided in the axial direction, a joint being provided between the ... | 11/20/2001 |
| 6311575 | Device for connecting together a ball nut and moving member A device for slip-fittably connecting together a ball nut and a moving member moved by the ball nut includes a first connecting member fixedly attached to the ball nut. The first connecting member has first registration elements disposed radially opposite... | 11/06/2001 |
| 6311576 | Anti-backlash nut for lead screw An anti-backlash nut includes a body having an axially-extending bore and internal threads for engaging a lead screw inserted into the bore. The internal threads are divided circumferentially into three inner segments each movable in a radial direction. T... | 11/06/2001 |
| 6267021 | Anti-backlash device for a motorized optical component positioning stage An anti-backlash device for a positioning stage arranged for the precise movement of components composed of a pair of plates having rail receiving grooves, a pair of rails joining the plates and attached thereto and a work piece mounting table, the anti-b... | 07/31/2001 |
| 6202500 | Reinforced lead screw with anti-backlash nut An anti-backlash nut assembly is disclosed on a reinforced lead screw. The mechanism includes a hollow, elongate reinforcing rail surrounding a lead screw and an anti-backlash nut assembly movable along the reinforcing rail. The anti-backlash nut assembly... | 03/20/2001 |
| 6142032 | Adjustable anti-backlash nut assembly An anti-backlash nut assembly for translational movement along the axis of a leadscrew in response to rotational movement of the nut assembly relative to the leadscrew. The nut assembly comprises (i) a primary nut having an internal thread which mates wit... | 11/07/2000 |
