Did You Know...
...that Thomas Edison's patent application on his phonograph was approved by the Patent Office in just seven weeks? In contrast, it took Gordon Gould, the inventor of the laser, 30 years to obtain his patent -- finally awarded in 1988!
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| Number | Title | Issue Date |
| 7913627 | Upper and lower path switching device for traveling body for transportation An upper and lower path switching device for a traveling body for transportation has an elevating guide rail supported horizontally by an elevating body, upper fixed guide rails which are connected to the elevating guide rail at a lifted position of the elevating bo... | 03/29/2011 |
| 6666147 | Rail mounted traversing transport A transportation system is provided that accommodates varying angles of slope along the path of its movement, while maintaining a level transportation platform without the need of mechanical leveling devices or systems. The platform may be connected to th... | 12/23/2003 |
| 6644210 | Shopping cart conveyor with front wheel alignment and turning system An inclined conveyor for transporting shopping carts between an upper floor and a lower floor. The inclined conveyor includes a continuous conveyor assembly having a conveyor belt including a plurality of spaced drive lugs that engage a shopping cart. The... | 11/11/2003 |
| 6490979 | Inclined shopping cart conveyor system An inclined conveyor for transporting shopping carts between an upper floor and a lower floor. The inclined conveyor includes a continuous conveyor assembly having a conveyor belt including a plurality of spaced drive lugs that engage a shopping cart. The... | 12/10/2002 |
| 6027295 | Lifting system for manufactured and mobile homes A lifting system for moving mobile homes that includes wheeled jack assemblies, jack units assembled from such assemblies and a segmented track for supporting such assemblies and units. Each jack assembly preferably includes a jack rollingly carried on wh... | 02/22/2000 |
| 5964159 | Inclined or vertical lift A lift for inclined or vertical operation has a pair of guide rails that run parallel to one other, on which guide rollers run that are mounted on swivel plates so that they can swivel and contact the rails from opposite sides. At least one guide roller o... | 10/12/1999 |
| 5713432 | Drive frame for a self-propelled elevator car A drive frame for a self-propelled elevator travelling on guide rail running surfaces (22) includes a car carrying frame (5,14,16,17,18) on which are mounted driving wheels (1) coupled to a drive unit (24) and supporting wheels (2). The driving wheels (1)... | 02/03/1998 |
| 5572930 | Elevator System A lift for inclined or vertical operation has a pair of guide rails that run parallel to one other, on which guide rollers run that are mounted on swivel plates so that they can swivel and contact the rails from opposite sides. At least one guide roller o... | 11/12/1996 |
| 5570638 | Rescue vehicle for a cable railway A rescue vehicle 1 for a cable railway is conveyed above the passenger cars 2B, 2T on cable 4 in the direction of travel F. Its cabin 3 is hung on suspension tackle 5 which rides on the cable 4, and which can swing in the manner of a... | 11/05/1996 |
| 4987834 | Accumulating conveyor with self-propelled pallets An accumulating conveyor formed by a series of self propelled pallets (18) running on a track (20), with non-contacting proximity detectors (24A, 24B) located on the front and rear of each pallet (18), and an on board control circuit (26) causing deenergi... | 01/29/1991 |
| 4922829 | Variable height workstation and system A variable height workstation includes a trolley delivery apparatus for moving a rail section from a gap formed in a subsidiary loop rail to a workstation located remotely from the loop. A pivotal cam moves with the rail section and arrests travel of a tr... | 05/08/1990 |
| 4440090 | Storage arrangement for truck conveyor trolleys Storage arrangement for truck conveyor trolleys is provided wherein trolley units are designed to run within a conveyance path defined by a trolley rail. The trolley units are engageable with a truck for receiving articles to be carried and can be attache... | 04/03/1984 |
| 4171178 | Apparatus for automatically handling stacks of bags In an apparatus for automatically handling stacks of bags, initially the bags are formed into stacks, each stack is moved onto and along a conveying track and then unloaded from the track to a loading surface. The support surface on the conveying track fo... | 10/16/1979 |
