Quotables
"Flight by machines heavier than air is unpractical and insignificant, if not utterly impossible."
Simon Newcomb, astronomer ; Said in 1902, less than two years before the first flight at Kitty Hawk
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 |
| 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 |
| 7077773 | Drive assembly with dynamic tensioning device A drive assembly for a closed loop cable system in which a flexible driver member drives a door or the like back and forth has the flexible drive member wrapped around and driven by a drive pulley. The drive assembly includes a motor unit having a motor shaft that r... | 07/18/2006 |
| 6736743 | Belt installation tool A belt installation tool. The tool comprises a pair of arms connected at a pivot. Each arm has an end for engaging a pulley axle. A handtool is engaged with an arm. By a torque applied with the handtool through a short arcuate motion to the arms, the pulleys are mov... | 05/18/2004 |
| 5785620 | Drive assembly The present invention relates to a drive assembly having an endless rotating drive element which runs over a driving gear of a motor and a driven gear of a machine and a tensioning device for the drive element. The motor is arranged on a support which is ... | 07/28/1998 |
| 5261859 | Adjustable pulleys for mail sorting system A dancer pulley assembly includes a first horizontal plate having an upper surface and a lower surface, a swing arm having a proximal end pivotally mounted to the first horizontal plate on the lower surface thereof and being pivotal about a vertical pivot... | 11/16/1993 |
| 4865289 | Holtless motor mounting arrangement with self tightening of drive belts A motor mounting arrangement requiring no bolts or other fasteners is disclosed in the form of a pair of mounting plates hinged at one end to the device to be powered by the motor. Each plate has a hinge-like deformation at one plate end for encircling a ... | 09/12/1989 |
| 4512268 | Method and apparatus for tensioning and sewing a tubular workpiece An apparatus for supporting and tensioning a tubular workpiece edge such that the edge may be linearly advanced beneath the stitch forming instrumentalities of a sewing machine. The tensioning apparatus includes at least two rotative assemblies which are ... | 04/23/1985 |
| 4346649 | Doughnut making machine and improvements thereon A miniature size doughnut fryer has a portable hopper easily removed from the frying machine and which is automatically positioned in an aligned cutting position when installed on the machine. An improved safety cut-out device is provided for a belt drive... | 08/31/1982 |
| 4191062 | Chain drive and automatic chain tensioning unit An automatic drive chain tensioner having a pair of idler assemblies, with each idler assembly comprising an idler sprocket and an indexing sprocket on each side of, and concentrically connected to, the idler sprocket with each idler assembly being adapte... | 03/04/1980 |
| 4068535 | Method and apparatus for controlling the tension of drive belts A method and apparatus for controlling the tension of flexible drive belts, or a single drive belt, connecting a drive pulley to a driven pulley. The apparatus includes a first idler assembly for engaging the slack run of the drive belts, a second idler a... | 01/17/1978 |
| 3941006 | Free floating belt tensioner A belt tensioner comprising first and second rollers connected by a "Z" shaped member upon which the rollers are journaled for rotation.... | 03/02/1976 |
