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 |
| 7261311 | Fifth wheel hitch assembly with self-locator Typical fifth wheel hitch assemblies require the operator to leave the cab of the vehicle to put the fifth wheel hitch assembly into position to receive a king pin of a trailer. The present invention is a fifth wheel hitch assembly that comprises a base assembly, a ... | 08/28/2007 |
| 7222872 | Hitch damping system A hitch damping system for dampening forces transferred between a towed vehicle and a towing vehicle. The hitch damping system includes a first assembly being designed for being operationally coupled to the towed vehicle. A second assembly is designed for being oper... | 05/29/2007 |
| 6986524 | Fifth wheel pin box assembly A fifth wheel pin box assembly for towing a trailer behind a towing vehicle including a column, a top member secured to the column, a rubber shear spring, a first plate on the rubber shear spring attached to the top member, a skid pad, a second plate on the rubber s... | 01/17/2006 |
| 6729635 | Fifth wheel A fifth wheel coupling comprising essentially a fifth wheel plate and a pair of pillow blocks for the attachment on the frame of a truck tractor. The fifth wheel plate pivots around an axis in relation to the pillow blocks and on its underside, is equipped with a pa... | 05/04/2004 |
| 6644678 | Mounting/bearing device for a fifth wheel having a stirrup-shaped bearing pedestal and a bridge The articulating function of a mounting/bearing for fifth wheels is realized by utilizing a bolted connection or by using rubber elements as a displacement coupling. The object of the current invention is to create a mounting/bearing device for a fifth wh... | 11/11/2003 |
| 6581951 | Motion-dampening fifth-wheel hitch The invention involves a connector apparatus for attaching a trailer to a towing vehicle. The invention has a base structure with a kingpin-receiving plate attached with respect to the top of the base structure and pivotable with respect thereto about a s... | 06/24/2003 |
| 6244613 | Self-propelled agricultural machine An articulated self-propelled agricultural machine, in particular, a forage harvester, whose group of rear axles comprise two frame parts having regions thereof arranged one above the other and the frame parts being coupled to one another by a bearing whi... | 06/12/2001 |
| 5882028 | Shock absorptive support structure A shock absorptive support structure in a coupler, improved in both economical efficiency and in practical usefulness, so that a shock due to relative displacement between a top plate and support brackets occurring in a vertical direction as well as in a ... | 03/16/1999 |
| 5509682 | Fifth wheel hitch assembly A fifth wheel hitch includes a frame for mounting to a towing vehicle and a head assembly for engaging a trailer to be towed. The head assembly is mounted for pivotal movement relative to the frame by means of a pivot pin secured to the head assembly, a y... | 04/23/1996 |
| 5328198 | Fluid and tension band-operated hitch adaptor A fluid and tension band-operated hitch adapter mounted in the bed of a pickup truck or similar towing vehicle for cushioning the fifth wheel, receiving pin or ball coupling element and dampening the resulting trailer load. In a preferred embodiment the f... | 07/12/1994 |
| 4892324 | Fifth wheel mounting pad An improved fifth wheel structure for over the road tractors wherein a resilient elastomer pad placed between a fifth wheel pocket surface and a bearing surface includes non-extrudable end members to prevent extrusion of the pad from the pocket and wherei... | 01/09/1990 |
| 4861060 | Air suspension apparatus An air suspension apparatus is disclosed for use with the fifth wheel connection between a tractor and semitrailer. The apparatus includes upper and lower frame sections that are connected by a hinge mechanism for relative pivotal movement. An inflatable ... | 08/29/1989 |
| 4457531 | Trailer coupling A trailer coupling is provided with a sliding plate and a coupling plate having an anti-friction layer, preferably of a PTFE composite material. To make it possible that in operation the anti-friction surface always remains paired with the same counter su... | 07/03/1984 |
| 4447070 | Fifth wheel A fifth wheel provided on a tractor and adapted to be connected to a king pin fixed to a trailer. The fifth wheel comprises a base plate provided with a slot for receiving the king pin, a stationary lock fixed to the portion of the base plate near the ter... | 05/08/1984 |
| 4394030 | King pin connecting mechanism A connecting mechanism for connecting a king pin fixed to a trailer to a fifth wheel mounted on a tractor. The connecting mechanism has a box structure in which major parts for connecting the king pin are mounted pivotally. The box structure is secured de... | 07/19/1983 |
