Did You Know...
...that in the early 1940s GE engineer James Wright was charged with a task of utmost importance to the war effort: develop a cheap substitute for rubber that could be used to produce tires, gas masks and a whole host of military gear. Wright tackled the task diligently -- and wound up inventing Silly Putty.
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 |
| 7425011 | Trailer hitch A trailer hitch which will resist fishtailing and increase stability of the towing vehicle-trailer combination is mounted at the rear of the towing vehicle. The hitch includes a pivot connector, such as a ball, which receives the mating end of a tongue extending fro... | 09/16/2008 |
| 6722685 | Joint between two vehicles or vehicle parts The joint between two vehicles or vehicle parts, such as an articulated bus or a railcar for example, comprises at least two joint members (11, 12; 11a, 21a; 111a, 112a) that are held apart from a central longi... | 04/20/2004 |
| 6595540 | Pivotal trailer hitch A pivotal hitch assembly (14) includes a housing (22) that is pivotally coupled to mounting plates (57) and (58) that are rigidly attached to a draw bar (60) of a trailer. The housing includes a pair of connector tubes (56) that receive pins (63), (64) th... | 07/22/2003 |
| 6443475 | Movable drawbar control system A movable drawbar control system for use on a typical tractor and specifically on endless track type tractors. The drawbar control system is hydraulically controlled by the user of the tractor via controls in the cab. The system uses a hydraulic cylinder ... | 09/03/2002 |
| 6305705 | No-sway hitch An improved trailer hitch is provided which provides greater control over the towing vehicle and towed vehicle by eliminating swaying of a towed vehicle and permitting the towing vehicle-towed vehicle combination to make sharper turns. The hitch comprises... | 10/23/2001 |
| 6241270 | Mechanical coupling connecting a truck and a trailer with means for controlling the trajectory of the trailer According to the invention, the connection between the truck (1) and the trailer (2) consists of a pivoting linkage (13, 19, 37) pivoting about an axle (43) or (26) generally perpendicular to it, forming part of a pivot center (18) attached in overlapping... | 06/05/2001 |
| 6170852 | Trailer hitch assembly A trailer hitch assembly for allowing a user to simultaneously extend and pivot the distal end of the trailer hitch to position the hitch ball in a desired position. The inventive device includes a support frame attachable to a vehicle, a telescoping stru... | 01/09/2001 |
| 5725231 | Trailer hitch In accordance with the present invention there is provided a trailer hitch for quickly and easily connecting a trailer to a tractor including a draw bar, a primary pivot device for connecting the draw bar to the tractor, a hitching device connected to the... | 03/10/1998 |
| 5468007 | Towing hitch A towing hitch for attaching a towing vehicle to a towed object includes an arcuate guide attached around the back of the towing vehicle. A traveller, which moves freely along the guide, is hinged to a coupling which is, in turn, rotatably attached to the... | 11/21/1995 |
| 5322315 | Towing hitch A towing hitch for coupling a towing vehicle with a vehicle which is to be towed is provided which includes a body having a pocket within which a receiver tube is pivotally mounted. The receiver tube telescopically mounts a tow bar which is configured for... | 06/21/1994 |
| 4951957 | Trailer hitch A wide-range hitch assembly which mounts on a towing vehicle is provided wherein a hitch ball can be pivoted in an arc and extended or retracted to simplify mating the hitch ball with a cooperating ball hitch fitted on a towed vehicle. The present inventi... | 08/28/1990 |
| 4650207 | Pin retainer assembly A retainer assembly retains a pair of connecting pins in place within a drawbar arrangement. The connecting pins connect various draft implements to the drawbar and hold the drawbar in a preselected angular position. The retainer assembly provides easy co... | 03/17/1987 |
| 4603878 | Automatic locking and centering wide range tow hitch A base portion is provided for support from the forward end of a vehicle to be towed or the rear end of a vehicle to be used to tow a second vehicle. An elongated hitch bar assembly is provided including first and second ends and mounting structure mounts... | 08/05/1986 |
| 4398617 | Rear axle-drawbar oscillation support system An oscillating rear axle assembly (30) and associated drawbar (40) which oscillates therewith. The rear axle (24) protrudes from an axle housing (32) which is joined to a support structure (34) extending forwardly therefrom. The support structure (34) is ... | 08/16/1983 |
