Did You Know...
...Chester Carlson was a patent agent who tired of having to make multiple copies of patent applications using the only duplication method available at the time: carbon paper. In 1959 he came up with a new copying system and took it to IBM for evaluation. The "experts" at IBM determined potential sales to be only 5,000 units because people wouldn't want to use a bulky machine when they had carbon paper. Carlson's invention was the xerography process, the company founded on the system is Xerox.
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| Number | Title | Issue Date |
| 7390065 | Dumping utility cart A dumping cart having an article retaining bed, a first set of wheels, a second set of wheels and a chassis. The first set of wheels is operably attached to the article retaining bed. The second set of wheels is operably attached to the chassis. The chassis is pivot... | 06/24/2008 |
| 6851756 | Dumping utility cart A dumping cart having an article retaining bed, a chassis, a front set of wheels, a rear set of wheels, and a mechanism for pulling. The article retaining bed has a front end, a rear end, a pair of sides that each extend between the front end and the rear end. The f... | 02/08/2005 |
| 6217122 | Dual use vehicle with rolling hopper and method A dual use belly dumping and end dumping vehicle is provided, including a frame, having left and right side beams connected together to form an opening therebetween. The frame is mounted on rear wheels for transport. A hopper with sides, ends and an opena... | 04/17/2001 |
| 6089670 | Detachable side dump body A side dump body for use on a truck or trailer is described wherein the side dump body may be pivoted to either side of the truck or trailer to dump the contents thereof. The side dump trailer is operatively connected to a pair of pivotal body mounts whic... | 07/18/2000 |
| 4531780 | Lift mechanism for a dump truck A lift mechanism for a dump truck operative to pivot the dump body rearwardly about a pivot axis at the rear of the hoist frame and operative to pivot the dump body about a pivot axis at the front of the hoist frame. The mechanism includes a lift arm asse... | 07/30/1985 |
| 4289353 | Combination belly dump/end dump vehicle A vehicle is shown having a hopper mounted thereon capable of dumping materials contained within the hopper over the end of the hopper or through the bottom of the hopper. Dumping over the end of the hopper is accomplished by lifting the front end of the ... | 09/15/1981 |
| 4056283 | Truck construction This invention provides a construction for a load-carrying vehicle which permits a dump box to dump either to the rear or to the front. The construction includes a fixed pivot for the dumping box at the rear of the frame, and a displaceable pivot for the ... | 11/01/1977 |
