Famous Patents
In 1608, Dutch eyeglass maker Hans Lipperhey filed the first patent for a working telescope. The patent was denied.
PatentStorm News
Make the Most of Our Site
See this month's Top Inventors and Most Cited Patents.
Stay on top of the latest innovations by subscribing to an RSS feed.
Registered users: Manage your profile.
| Number | Title | Issue Date |
| 7204774 | One-piece drive pulley and belt guide In one-piece combination, a drive pulley and belt guide for a belt-driven machine. The pulley has a belt-driving section configured for engagement by the belt and a belt-guiding section integral with the belt-driving section. The belt-guiding section has a conically... | 04/17/2007 |
| 6970674 | Belt transporting device and image forming apparatus using the same A belt transporting device for circulatingly transporting an endless belt, which is in use with an image forming apparatus, such as copying machine or a printer. The belt transporting device includes a plurality of tension rolls, an endless belt laid on the tension ... | 11/29/2005 |
| 6409619 | Arrangement in connection with belt drive device An arrangement in connection with a belt drive device having two counter-rotating continuous belts operated by drive rollers traveling around stretching rollers, whereby the belts are urged towards one another by press rolls to draw a cable between the be... | 06/25/2002 |
| 5316524 | Edge guide systems for belt tracking An apparatus for controlling the lateral alignment of a belt arranged to move in a predetermined path includes a first roll arranged to support a portion of the belt passing thereover. The first roll has first and second ends. A first centering assembly f... | 05/31/1994 |
| 5181888 | Belt driving system A belt driving system having at least one roller for adjusting creep within a plurality of rollers. Creep detecting means provided at one end of the creep adjusting roller is rotated by torque of a flat belt in contact with the creep detecting means. Bias... | 01/26/1993 |
| 5078655 | Precalibration of drive belt tension A method for adjusting the tension of a drive belt wherein a tensioning device is pretensioned, e.g., after manufacturing at the plant, with a force corresponding to the force desired for subsequent operation. At this position, calibration markings are fo... | 01/07/1992 |
| 4929219 | Belt locator for locating a belt on a pulley A belt driven system (1) employs a dynamoelectric machine (11) to rotate a pulley (7) on which is positioned a drive belt (13). An improvement is a belt locator (19) for locating the belt on the pulley. The locator is effective to properly locate the belt... | 05/29/1990 |
| 4170175 | Belt tracking system A system for tracking an endless image copying or recording belt and maintaining it in alignment within a confined area includes at least three rollers with four rollers being preferred. The first roller is a cylindrical drive roller and the second and th... | 10/09/1979 |
| 3973446 | Web aligner A device for maintaining a predetermined alignment of a running web and more particularly maintaining the alignment of the belt of an endless conveyor comprising an idler spool over which the web or belt passes and which is laterally movable relative to i... | 08/10/1976 |
