Did You Know...
...that the x-ray was discovered purely by accident? When German physicist Wilhelm Konrad von Roentgen was experimenting with cathode rays in 1895, he put an activated Crookes tube in a book and went out to lunch. When he returned, he discovered that a key that had also been placed in the book showed up as an image on the developed film!
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| Number | Title | Issue Date |
| 8167749 | Belt tensioner and belt exchanging method of belt tensioner A tensioner arm comprises a tool-engagement portion for engaging with a tensioner-arm rotation tool, and a jig-holding portion which has a through hole for accepting a tensioner-arm fixation bar jig being inserted thereinto from above at a portion of the tensioner a... | 05/01/2012 |
| 7811189 | Deflector assembly A technique for deflecting an actuator belt includes applying a variable deflection force to the actuator belt. The technique may be used to construct actuators for active orthotics, robotics or other applications. Versions with passive clutches may also be used to ... | 10/12/2010 |
| 7803078 | Tensioner A tensioner comprising a base, a pivot arm pivotally engaged with the base, a torsion spring engaged between the base and the pivot arm for biasing the pivot arm, a first damping member and a second damping member disposed between the pivot arm and the base, the fir... | 09/28/2010 |
| 7758460 | Carriage driving apparatus and image reading apparatus and image recording apparatus using the same A carriage driving apparatus includes: a biaser which biases a pulley holder in a tensioning direction to tension a timing belt; and a biaser holder which holds the biaser such that the pulley holder is allowed to move to the slackening position when the biaser is n... | 07/20/2010 |
| 7686719 | Tensioner with drainhole A belt tensioner is provided for mounting on a mounting surface of a structure. The tensioner comprises a body, which defines a cavity, and a drain hole that is in communication with the cavity. The drain hole is located on the body so as to be facing the mounting s... | 03/30/2010 |
| 7678000 | Tensioning arrangement for an endless linkage A tensioning arrangement to an endless linkage of a drive train is provided. The tensioning arrangement includes a tension arm and a spool mounted at the tension arm. The spool includes a rib generally centrally located between opposing first and second endwalls of ... | 03/16/2010 |
| 7556577 | Wire reciprocating device A reel drum is rotatably supported on a board, and a tensioner case is detachably mounted to the board in the vicinity of the reel drum. Wires are extended from the reel drum in directions opposite to each other. A pair of tension rollers pressed onto the respective... | 07/07/2009 |
| 7419447 | Dual linear belt tensioner The invention is an improved belt tensioner for a belt drive system having a belt tensioner, a first belt tensioner pulley, a crankshaft pulley, an accessory pulley, and a power transmission belt trained about the first belt tensioner, crankshaft, and accessory pull... | 09/02/2008 |
| 7357741 | Belt looping A high output light source, such as a stage lighting luminaire, produces light along a path. The belt which drives a driven device is kept away from that path by passing it around the opposite side of the pulley. ... | 04/15/2008 |
| 7285065 | Belt tensioner with installation pin A belt tensioner for tensioning the belt of a belt drive system includes an eccentric adjusting member, a pivot structure eccentrically mounted on the adjusting member for pivoting around the adjusting member, a belt-tensioning pulley mounted to rotate on the pivot ... | 10/23/2007 |
| 7273432 | Belt tensioner A belt tensioner with a retainer can be brought into contact with a belt via a belt support for applying a tensile force. The retainer is joined at a distance from the belt support to a radial plain bearing and it can be swivelled about the axis of rotation of the r... | 09/25/2007 |
| 7226377 | Tensioner with adjustable biasing force of a traction member A tensioner for a traction member, in particular a belt of a traction drive for an internal combustion engine, includes a base constructed for rotation about a rotation axis and having a pivot arm. The pivot arm has a free end for connection of a rotatable tension r... | 06/05/2007 |
| 7207913 | Bi-directional drivebelt tensioning device A device for automatically maintaining tension and control of a drivebelt as the driving direction of the drivebelt is rapidly reversed and when the drivebelt is worn. ... | 04/24/2007 |
| 7163478 | Belt tensioner having an automatically adjustable travel stop A tensioner for generating tension in a power-transmitting belt is provided. The tensioner includes a base, which may be secured to an engine, and an arm that is movably attached to the base. A pulley is rotatably attached to the arm for engaging the belt. A spring ... | 01/16/2007 |
| 7144344 | Tensioner for a traction drive A tensioner for a traction drive to maintain a belt under tension includes a base part and a pivot arm connected to the base part for swinging about a rotation axis and having a free end for rotatable arrangement of a roller which is supported on the power transmitt... | 12/05/2006 |
| 7140992 | High torque retention joint in a tensioner A method of manufacturing a tensioner (10) by mounting an end member (38) on an end of a hollow tensioner shaft (24) includes a step of providing an end member (38) of sheet material with an opening (76) having a plurality of annul... | 11/28/2006 |
| 7115056 | Dual spring tensioner A drive belt tensioning method and assembly using a dual spring tensioner. A pulley from a drive belt/pulley system is mounted onto a pivot arm having a pivot point. A tensioner spring mounts between the machine frame and the pivot arm, such that is causes rotation ... | 10/03/2006 |
| 7115023 | Process tape for cleaning or processing the edge of a semiconductor wafer A wafer bevel processing apparatus comprises a plurality of rollers for rotatably supporting a wafer, first process roller, a second process roller, and a process tape extending between the first process roller and the second process roller. The first and second pro... | 10/03/2006 |
| 7101295 | Power transmission device and portable power working machine provided with the same A power transmission device is disclosed which is capable of easily, swiftly and appropriately altering the distance between the axes of a pair of transmission wheels such as pulleys, enabling an endless belt to be kept under constant and appropriate tension without... | 09/05/2006 |
| 7090605 | Apparatus for processing a prosthetic component An idler or tensioning assembly for an electronically controlled sanding/polishing machine is provided, the sanding/polishing machine utilizing a plurality of exchangeable polishing wheel assemblies of which the idler assembly is one. Each polishing wheel assembly i... | 08/15/2006 |
| 7090606 | Adjustable tensioner An adjustable tensioner with a base, a pivot-arm that oscillates about a pivot secured to the base, a pulley attached to the pivot-arm, a compression spring with a first end operatively connected to the pivot-arm and a second end operatively connected to a shoe that... | 08/15/2006 |
| 7086369 | Integrated power transmission drive and method The invention is an improved power transmission drive, for an internal combustion engine. The drive is of the type having a flexible link medium for transmitting power between a crankshaft of said internal combustion engine and drive components not associated with a... | 08/08/2006 |
| 7086373 | Damped accessory drive system including a motor/generator The invention is an improved internal combustion engine having a crankshaft, an accessory, a motor/generator, and a belt-drive system. The belt drive systems includes a crankshaft pulley, an accessory pulley, a motor/generator pulley, a belt tensioner, a belt tensio... | 08/08/2006 |
| 7052421 | Belt tensioning system for use with a motorized mobile C-arm A drive system for an imaging device of the type having a curved arm. The drive system includes a carrier that engages and supports the curved arm such that the curved arm can be moved along the carrier. The drive system includes a belt extending through the carrier... | 05/30/2006 |
| 7044100 | Integrated power transmission drive and method The invention is an improved power transmission drive, for an internal combustion engine. The drive is of the type having a flexible link medium for transmitting power between a crankshaft of said internal combustion engine and drive components not associated with a... | 05/16/2006 |
| 7008303 | Web lift system for chemical mechanical planarization Generally, a method and system for lifting a web of polishing material is provided. In one embodiment, the system includes a platen that has a first lift member disposed adjacent to a first side and a second lift member disposed adjacent to a second side. The platen... | 03/07/2006 |
| 7004864 | Auxiliary-driving system in engine In an auxiliary-driving system in an engine, a crank pulley, a first auxiliary pulley and an idler pulley having a tensioner function are disposed in a triangular configuration with the idler pulley located in an uppermost position; and a second auxiliary pulley is ... | 02/28/2006 |
| 6994644 | Tensioner In a chain tensioner comprising a plunger having toothed racks engageable with wedge-shaped cams which cooperate with oblique cam-guiding surfaces, the cam-guiding surfaces are formed on a cam-receiving ring disposed in an enlarged part of the cam-receiving hole adj... | 02/07/2006 |
| 6971966 | Belt damper A belt damper for a gear train is provided. An endless belt is wrapped around pulleys mounted to an idler gear and an output gear. The pulleys are mounted to splined shafts which are axially aligned with and connected to splined gear shafts on which the idler and ou... | 12/06/2005 |
| 6966858 | Tensioner A chain tensioner comprising a housing, a plunger having racks formed on its opposite sides, a protrusion biasing spring, cams arranged in oblique guide grooves in the housing and engageable with the racks of the plunger, and a spacer supporting a cam biasing spring... | 11/22/2005 |
| 6938544 | Belt drive A belt drive for a machine for printing images on a flat printing material, having a continuous belt revolving during operation, includes a belt guide having stops for two protruding edges of the belt, the edges being oriented in a longitudinal direction of the belt... | 09/06/2005 |
| 6935978 | Chain tensioner A chain tensioner is provided, in which the design conditions of a register ring are optimized in compliance with the required functions so as to improve the durability, the operational stability and the like of the chain tensioner. A register ring is formed of a st... | 08/30/2005 |
| 6932730 | Variable speed drive assembly A variable speed drive assembly with a double pulley, and a transmission input pulley. A first belt extending between a power source and a double pulley and a second belt extending between the double pulley and the transmission input pulley. A linkage assembly opera... | 08/23/2005 |
| 6857977 | Tensioner for a traction drive The invention relates to a tensioner (1) for a traction drive with a rotationally fixed housing (2) to a side of which a rotatable swivel arm (10), provided with a rotatable tension roller, is associated. A torsion spring (7) is placed be... | 02/22/2005 |
| 6849015 | Ratcheting pivot arm tensioner with backlash An engine chain or belt tensioning system includes a tensioner pivot arm with a ratcheting means that includes backlash in an engine timing system. The tensioner system includes a tensioner pivot arm having a fixed pin, ratchet teeth, and a connection for a rotation... | 02/01/2005 |
| 6808466 | Chain tensioner In a chain tensioner having a plunger biased to protrude from a housing by a spring, a pair of wedge-shaped cams are received in tapered recesses in the end of the housing, cooperate with racks formed on opposite sides of the plunger, and are urged against oblique s... | 10/26/2004 |
| 6689001 | Adaptive belt tensioner system for control of reversible torque load pulley A tensioner for an endless power transmission belt, the belt being driven about a sheave. The tensioner may comprise a base, a resilient device, and first and second arms pivotally coupled for movement in an open and a closed direction. The tensioner may ... | 02/10/2004 |
| 6607459 | Linear tensioner A tensioner having a base. A spring connected to the base biases a plate, having a pulley, toward a belt. Frictional blocks are aligned on the base in a staggered fashion along a spring centerline. The plate slidingly moves in a linear path between the bl... | 08/19/2003 |
| 6602155 | Pivoting idler assembly for belt drive mower An idler assembly which is easily removable from a mower deck is disclosed. The idler assembly is rotatably mounted to the mower deck about a shouldered shaft and held in place by an easily removable spring clip. An idler pulley is rotatably attached to t... | 08/05/2003 |
| 6592480 | Belt looping A high output light source, such as a stage lighting luminaire, produces light along a path. The belt which drives a driven device is kept away from that path by passing it around the opposite side of the pulley.... | 07/15/2003 |
