Mark Twain (Samuel L. Clemens) received Patent No. 121,992 for "An Improvement in Adjustable and Detachable Straps for Garments." He later received two more patents: one for a self-pasting scrapbook and one for a game to help players remember important historical dates.
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| Number | Title | Issue Date |
| 7901311 | Belt drive assembly for driving accessory parts of an internal combustion engine, drive belt and pulleys suited to be used in said assembly Belt drive assembly for driving accessory parts of an internal combustion engine comprising a reversible electric machine, comprising a belt with a plurality of longitudinal ribs alternating with grooves and with a plurality of cavities spaced at equal distances fro... | 03/08/2011 |
| 7481728 | System and apparatus for driving a track mounted robot A drive system for a robot includes a track including opposed sidewalls, an electrified rail positioned between the sidewalls, a shoe mounted on the robot for contacting the electrified rail providing power to the robot, a drive motor mounted on the robot, a rotatin... | 01/27/2009 |
| 7431674 | Continuously variable transmission Continuously variable transmission provided with a primary pulley and a secondary pulley, around which a drive belt is arranged, clamped between two conical pulley discs of the respective pulley, a running surface of at least one pulley disc of the primary pulley an... | 10/07/2008 |
| 7343076 | Alignment apparatus for use in testing optical modules An exemplary optical module testing apparatus (100) includes a base (10) and a supporting element (20). The base has a testing hole (13) formed thereon. The supporting element has a plurality of supporting portions (23) formed ther... | 03/11/2008 |
| 7331269 | Apparatus and method for interconnecting items with a flexible member A flexible member, comprising: an inner core member, comprising a plurality of strands of liquid crystal polymers cooperating with each other to define and provide the inner core member; an outer sheath disposed about the inner core member, the outer sheath defining... | 02/19/2008 |
| 7299915 | Motorized pulley The present technique, in accordance with one exemplary embodiment, relates to a motorized pulley. The exemplary motorized pulley includes a rim or housing inside of which are disposed an electric motor and a gear assembly, which is configured to transfer torque of ... | 11/27/2007 |
| 7300373 | Power transmission mechanism and manipulator A power transmission mechanism comprising: a flexible power transmission element; a pair of a drive pulley and a driven pulley on which the flexible power transmission element is wound, each the pulley having a pin-embedding hole formed to extend from the outer circ... | 11/27/2007 |
| 7294078 | Over-molded beaded cable for driving applications An over-molded beaded driving cable which has an inner core, a plurality of inner core structures. An outer jacket may encompass the inner core and inner core structures. Each of a plurality of outer beads concentrically surrounds an inner core structure. The outer ... | 11/13/2007 |
| 7281596 | Drive belt cooling structure for engine A drive belt cooling structure for an offroad vehicle including an internal combustion engine. The engine has at least one cylinder, a piston positioned in the cylinder, and a crankshaft. The transmission includes a transmission chamber defined by a transmission cas... | 10/16/2007 |
| 7232392 | Cushion ring sprocket assembly and method A method for installing a cushion ring on a sprocket body to construct a sprocket assembly includes applying a deforming force to a cushion ring so that an opening therein is deformed to a shape that accommodate passage of a non-circular flange of a sprocket body th... | 06/19/2007 |
| 7229375 | Back drive silent chain system with low profile sprocket A silent chain and sprocket assembly is disclosed for use with a chain tensioner that provides driving contact on both sides of the chain and improved system wear, noise and vibration characteristics without adding to the chain's weight or material costs. The front-... | 06/12/2007 |
| 7225705 | Power transmission device and assembling method for a motorcycle A power transmission device includes a drive shaft, one end of which extends beyond a drive-side transmission case, a drive wheel mounted onto the one end of the drive shaft, a driven wheel journaled by a driven-side transmission case that is mounted onto the driven... | 06/05/2007 |
| 7189176 | Motor-driven steering apparatus A motor-driven steering apparatus includes a steering member reciprocating in correspondence to a steering wheel operation, a ball nut inserted to a ball thread shaft of the steering member, a drive pulley driven by an electric motor, and a driven pulley coupled to ... | 03/13/2007 |
| 7163184 | Drive unit, preferably for lifting columns for height-adjustable tables, and a lifting column A drive device, preferably for lifting columns for height-adjustable tables, comprising an endless chain (31) running over first and second chain wheels (16, 17) with a first chain run and a second chain run between the two chain wheels, wherein at lea... | 01/16/2007 |
| 7155788 | C-axis driving device of a computer numerical controlled lathing and milling machine A C-axis driving device of a computer numerical controlled (CNC) lathing and milling machine includes a spindle, an encoder, a spindle motor, and a servo motor. The spindle has a clamping device and a transmission portion. This encoder connects with the transmission... | 01/02/2007 |
| 7156777 | Adjustable exercise device An exercise treadmill (20) is described having a number of assembly improvements. In one embodiment, a pivot assembly (50) is provided to allow a treadmill deck (32) to deflect during use. The rear pivot assembly includes a pin (56) trans... | 01/02/2007 |
| 7144345 | Toothed belt transmission A toothed belt transmission is provided in which a toothed belt is trained around drive and driven pulleys. Each toothed pulley has a circumferential periphery formed with a plurality of teeth. Adjacent teeth are assigned as a first tooth portion and a second tooth ... | 12/05/2006 |
| 7128672 | Cluster sprockets for bicycle transmissions and other prime movers This invention concerns a sprocket gear for facilitating the derailing of the chain of a bicycle transmission and other prime movers. The sprocket gear includes at least two sprockets axially and concentrically positioned relative to one another. Each sprocket inclu... | 10/31/2006 |
| 7128673 | Sprocket for chain In a sprocket for a roller chain, the tooth form is such that the distance between the tooth center line and a part of the front tooth surface, at a location on the tooth head side of the pitch line, is greater than the distance between the tooth center line and the... | 10/31/2006 |
| 7125356 | Tension-reducing random sprocket A sprocket is provided having a plurality of teeth around its circumference. Adjacent teeth are separated by roots each having a root radius defined as the distance between the center of the sprocket and a point along the root closest to the sprocket center in a rad... | 10/24/2006 |
| 7121969 | Roller chain In a roller chain, the outside diameters D of the rollers and the outside diameters d of the pins extending through bushings on which the rollers are disposed satisfy the relationships 0.72P≦D≦0.79P and 0.40P≦d≦0.44P where P is the pitch of the roller chain.... | 10/17/2006 |
| 7114788 | Angled traction lugs for endless band This invention refers to the traction lugs of reinforced elastomeric endless traction bands, and more particularly to those which are used on heavy vehicles like defense vehicles or for skid steer vehicles. More specifically, the invention relates to traction lugs w... | 10/03/2006 |
| 7101296 | Synchronous rear belt drive system for motorcycles and method of use A synchronous rear belt drive system for belt driven motorcycles and a method of altering the final drive ratio of such motorcycles utilizing the present rear belt drive system is disclosed. The present rear belt drive system provides a plurality of interchangeable ... | 09/05/2006 |
| 7093709 | Belt conveyor A belt conveyor or belt accumulator includes at least two tandem zones, each of which is defined by a motorized roller and at least one idler roller positioned along and between opposite sidewalls of the conveyor and a continuous belt routed around the motorized rol... | 08/22/2006 |
| 7077774 | Roller chain transmission device In a roller chain transmission, the diameter D of the rollers, the outer diameter d of the pins, and the height H of the inner plates satisfy the relationships 0.72P≦D≦0.79P, 0.40P≦d≦0.44P, and 0.96P≦H, with respect to the chain pitch P. The radius r of th... | 07/18/2006 |
| 7059985 | Alternating guide power transmission chain A power transmission chain has rows of pivotally connected, interleaved drive links and guide links. One guide link is included in each row of links and the guide links are positioned on alternate lateral sides of the chain in each row. A sprocket that can engage th... | 06/13/2006 |
| 7056245 | Belt driving apparatus and a liquid ejecting apparatus A belt driving apparatus has a motor for generating the driving force, a toothed driving pulley rotating by the driving force, an endless toothed belt wound on the pulley, wherein a first surface of the toothed belt has teeth corresponding to teeth of the pulley and... | 06/06/2006 |
| 7052423 | Utility machinery and associated reversible feeder mechanisms A drive mechanism for utility machinery is disclosed. The mechanism includes a driver wheel and a driven wheel that are coupled by means of an endless flexible band trained around outer rims of the driver and driven wheels. The driver wheel is adapted to transmit dr... | 05/30/2006 |
| 7044875 | Synchronous drive apparatus and methods A synchronous drive apparatus and method, wherein the apparatus comprises a plurality of rotors comprising at least a first and a second rotor. The first rotor has a plurality of teeth for engaging the engaging sections of an elongate drive structure, and the second... | 05/16/2006 |
| 7032983 | Silent and reduced vibration chainwheel A silent and reduced vibration chainwheel includes a disk, multiple teeth and an energy absorber. The disk has an outer edge, two opposite sides and at least one recess. The teeth are formed radially at and extend out from the outer edge of the disk. The energy abso... | 04/25/2006 |
| 7028943 | Device for winding a yarn on a holder driven in rotation Yarn is dispensed by a yarn guide mobile in translation parallel to generatrices of a rotary holder. The device comprises a carriage receiving the yarn guide and having fittings for being coupled with a flexible transmission and driving member adapted to impart to t... | 04/18/2006 |
| 7004866 | Shiftable toothed-belt drive A shiftable toothed-belt drive, containing an engagement and disengagement device, in order alternately to mesh radially and demesh radially a toothed belt, which is guided around at least two gearwheels, with and from at least one of the two gearwheels. A disengage... | 02/28/2006 |
| 6969332 | Silent chain A silent chain comprises a plurality of link plates, each having a pair of tooth parts and pin holes, stacked in the thickness direction as well as in the length direction and linked together using linking pins. Guide links are provided on the outermost sides of the... | 11/29/2005 |
| 6958026 | Sprocket tooth profile An improved tooth profile for a roller chain sprocket enables noise reduction from impact and polygonal action during the meshing process. The profile of the engaging flank consists of three portions which are the seating, impact and distal portions all three of whi... | 10/25/2005 |
| 6869375 | High output force actuator for an active vibration control system An active vibration control system provides a mass which is movable through a large excursion while minimizing the system size in two of three dimensions to compensate for sensed vibrations. A first rotating member is rotatable about a first axis and a second rotati... | 03/22/2005 |
| 6866603 | Counter-rotational drive belt system and method A belt drive system for use in a positive drive application includes a transmission belt having a row of drive teeth spaced apart along a first side and a non-toothed opposite second side. The system includes a driver pulley, a counter-rotating driven pulley or pull... | 03/15/2005 |
| 6840877 | Rotating drive apparatus A rotating drive apparatus comprises a plurality of shafts rotatably mounted in the apparatus substantially parallel to each other. At least one shaft is adapted to be operatively connected to a power source for rotation thereof. An idler is rotatably mounted on one... | 01/11/2005 |
| 6811506 | Engine accessory belt drive with self-aligning pulley An engine accessory belt drive includes a self-aligning pulley assembly including a relatively stationary outer assembly and a universally pivotable inner assembly supported by the outer assembly and able to be locked in position by tightening of a fastener. During ... | 11/02/2004 |
| 6796918 | Pneumatic displacement system The invention concerns a pneumatic system for displacing a cable (1) stretched in a loop between at least two pulleys (2, 3). Said system comprises at least an artificial muscle (5) inserted over a portion of the loop, the length of said artific... | 09/28/2004 |
| 6699147 | Mower with dual mechanical transmissions A vegetation mower incorporating a drive train using two mechanical transmissions to selectively drive the ground engaging wheels at different speeds. The drive train incorporates a single pulley belt to transfer power from the mower engine to the drive w... | 03/02/2004 |