Did You Know...
...that power steering was invented by independent inventor Francis W. Davis? As chief engineer in the 1920s of the truck division of the Pierce Arrow Motor Car Company, he saw how hard it was to steer heavy vehicles. So that he would be able to keep the profits from his future invention, Davis left his job, rented a small engineering shop in Waltham, Mass., and developed a hydraulic power steering system that led to power steering.
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 |
| 7954839 | Temporary single arm adjustable goose neck hitch system An attachment having an interchangeable means for converting a traditionally manufactured tow behind, A frame or straight tongue trailer into a functioning single arm goose neck style trailer. This hitch systems forward end can be temporarily attached to, and towed ... | 06/07/2011 |
| 7926832 | Trailer coupler and safety chain apparatus and system A new and improved trailer coupler for connecting a trailer to a ball hitch mounted on a towing vehicle comprising a housing having a recessed socket, a retractable latching plate, a locking mechanism, an access port, a visual indicator, an alarm system for indicati... | 04/19/2011 |
| 7857343 | Trailer with adjustable ground clearance A simple mechanical height adjustment device adjusts the ground clearance of a trailer. The trailer, having the height adjustment device can selectably and reversibly increase its ground clearance. The trailer, having an adjustable ground clearance, can minimize its... | 12/28/2010 |
| 7621551 | Trailer hitch adaptor assembly An adaptor assembly for attaching a gooseneck assembly to a hitch plate preferably includes a hitch connection tool having a body with a first end and a second end; an adaptor plate connectable to the hitch plate, the adaptor plate having a knob; a safety chain adap... | 11/24/2009 |
| 7384231 | Bogie unit for suspended transport of a treatment plant A wheeled bogie unit is engageable with one end of a chassis of a treatment plant to support that end of the chassis above the ground for the suspended transport of the plant. The bogie unit has a chassis, at least one wheel set supporting the chassis, a lifting cra... | 06/10/2008 |
| 7378013 | Gooseneck trailer coupler A coupler comprised of a coupler housing having a first opening formed therein. The opening has a concave cavity. A cylindrical socket is formed within the housing. A second opening in the housing communicates with the cylindrical socket. A lock ring is provided, th... | 05/27/2008 |
| 7287947 | Front loading trailer and method of use A trailer for hauling heavy equipment includes front end loading assembly that allows hitching and loading, a trailer bed, and a set of rear wheels. Longitudinally aligned support beams from the trailer bed, ends terminating at the front end loading assembly. The fr... | 10/30/2007 |
| 7278650 | Travel trailer having improved turning radius A travel trailer configured to be coupled to and towed by a vehicle is provided. The travel trailer has a compartment that is attached to a chassis which includes a front end and a rear end. A plurality of wheels are attached to the chassis adjacent the rear end, an... | 10/09/2007 |
| 7270360 | Storage unit for a motor vehicle A storage unit installed in a compartment of a motor vehicle such as the bed of a pickup truck and a method of distributing such devices. Embodiments include a cover, a support structure, and a rawer and may have the same horizontal dimensions as the compartment or ... | 09/18/2007 |
| 7267350 | Steering damper A steering damper includes a steering damper body installed in a steering system of a vehicle, and having a fluid path therein, and a pressure control valve for controlling a damping force in the steering system, and provided in the fluid path, wherein the pressure ... | 09/11/2007 |
| 7213824 | Suspension system for a transport vehicle A suspension system for a multi-axle transport vehicle for moving heavy loads includes two fluid activated cylinders and two spaced apart arms for each wheel and axle set which allow the transport vehicle to be raised and lowered with respect to the roadway. The sus... | 05/08/2007 |
| 7207587 | Remote controlled hydraulic gooseneck for tractor trailers A gooseneck for connecting a tractor to a trailer. The gooseneck has a remotely controlled unit for operating the hydraulic and pneumatic systems that provide for moving a slidable king pin plate to different loading positions so as to balance the load for over-the-... | 04/24/2007 |
| 7156591 | High mobility recovery trailer The invention in a preferred form includes a frame assembly having a load bearing surface and a hitch engagement. The hitch engagement includes a lifting bar and a hitch guide. A bogey assembly may be further attached to the frame. The bogey assembly may include a w... | 01/02/2007 |
| 7121574 | Pin box assembly having interchangeable hitch couplers A pin box for connecting a trailer to a tow vehicle includes a hollow receiver tube attached to a pair of support beams positioned on opposite sides of the receiver tube. A forward mounting bracket for attaching the pin box to a frame of the trailer is disposed betw... | 10/17/2006 |
| 7100934 | Goose neck trailer A goose neck trailer with a pair of side rails has a goose neck hitch attached to the side rails and defined by two side members extending upwardly and forwardly therefrom and converging inwardly and forwardly to the hitch coupling with a series of cross-members int... | 09/05/2006 |
| 7097193 | Gooseneck trailer hitch and method The gooseneck trailer hitch assembly includes a block tube that is fixed to a trailer frame. A top plate is fixed to the block tube. A vertical shaft is connected to the top plate. A steel spherical member is slidably mounted on the vertical shaft. Two rings are cla... | 08/29/2006 |
| 7097407 | Mounting structure for mounting foldable two-wheel vehicle on four-wheel vehicle A two-wheel vehicle foldable to have a width equivalent to the width of a license number plate can be contained in a door, side walls, or a rear wall of a four-wheel vehicle. Handles and steps of the two-wheel vehicle can be folded so that the vehicle width becomes ... | 08/29/2006 |
| 7011327 | Displaceable ball hitch assembly A method and apparatus for providing a displaceable ball hitch assembly configured to be mounted in a bed of a truck. The displaceable ball hitch assembly includes a platform track, a displaceable platform, a gate member and a driving mechanism. The platform track d... | 03/14/2006 |
| 6942232 | Suspension system for a transport vehicle A suspension system for a multi-axle transport vehicle for moving heavy loads includes two fluid activated cylinders and two spaced apart arms for each wheel and axle set which allow the transport vehicle to be raised and lowered with respect to the roadway. The sus... | 09/13/2005 |
| 6932372 | Detachable gooseneck trailer hitch A hitch assembly for connecting a front end 21 of a low-loader trailer to a tow vehicle 10 is disclosed. The hitch assembly includes: a first mount 22 located at the front end 21 of the trailer; a second mount 25 longitudinally spa... | 08/23/2005 |
| 6883820 | Offset coupler for gooseneck trailer An offset coupler device for coupling a gooseneck trailer with a gooseneck hitch ball is provided. The coupler has a first member spaced apart from a second member by an offset plate. A ball coupler is provided at a lower end of the second member. In use, the first ... | 04/26/2005 |
| 6874803 | Pneumatically assisted tractor trailer attachment assembly A gooseneck for connecting a tractor and a trailer for transportation includes a support arm. The support arm has a first end that is pivotally coupled to a fifth wheel of the tractor. The support arm is pivotable to raise and lower a second end of the support arm r... | 04/05/2005 |
| 6854757 | Shock absorbing trailer hitch A shock absorbing trailer hitch generally includes a socket adapted to lock onto a ball connected to the towing vehicle. The socket is connected to a lower support member which supports the bottom of a shock absorbing assembly. An inner tube extends up from the sock... | 02/15/2005 |
| 6478324 | Variable height gooseneck An adjustable chassis for transporting shipping containers of different configurations. The chassis comprises at least two spaced-apart frame members, with each frame member including an upper surface for supporting a shipping container. At least two conv... | 11/12/2002 |
| 6474673 | Trailer hitch conversion apparatus An adapter for attaching a gooseneck or fifth wheel trailer hitch to a standard, V-shaped, trailer hitch. The hitch converting device contains a fifth wheel frame that attaches about the standard hitch and ball of a trailer device. The adapter provides a ... | 11/05/2002 |
| 6471233 | Method of converting a refuse collection body to a semi-trailer and a refuse collection semi-trailer A method of converting a refuse collection body into a semi-trailer. A refuse collection body having a front end and a rear end, and a frame extending along a bottom of the body from adjacent the front end to adjacent the rear end is provided. A king pin ... | 10/29/2002 |
| 6398250 | Trailer hitch An extension coupling for releasably interconnecting a trailer to a fifth wheel tow hitch. This extension coupling includes a mount that is secured to the trailer, and an elongated arm that is pivotally secured to the mount and one end. A universal joint ... | 06/04/2002 |
| 6378887 | Gooseneck lift mechanism A detachable gooseneck trailer (20) having a gooseneck (24) and a detachable trailer deck (22) utilizes a trailer attachment assembly (30) to draw the trailer deck (22) toward the gooseneck (24) during attachment. The attachment assembly (30) includes a p... | 04/30/2002 |
| 6371505 | Double gooseneck trailer A double gooseneck trailer for hauling large, heavy loads wherein there is provided: a jeep having a connector for connecting the jeep to a hitch on a tractor and a first hitch; a dolly having a second hitch and a plurality of axles; and a load unit havin... | 04/16/2002 |
| 6264229 | Gooseneck trailer coupler A gooseneck trailer coupler is disclosed which secures a first structure such as a towing vehicle to a second structure such as a trailer. The coupler is provided with a mounting element extending from the first structure, a chuck having a top end and a b... | 07/24/2001 |
| 6234509 | Spring return coupler A device and method for coupling a trailer which has a trailer tongue mount attached to the trailer and a coupler attached to the trailer tongue mount. The coupler has an outer tube assembly, an inner tube assembly slidably received by the outer tube asse... | 05/22/2001 |
| 6203046 | Adaptor structure for towing a trailer having a pintle eye behind a truck having a fifth wheel mount Adaptor structure is provided for towing a pintle hitch trailer behind a truck having a fifth wheel ball mount. The adaptor structure includes a mounting plate constructed and arranged to be mounted to a surface of a tongue of a trailer to be towed. The m... | 03/20/2001 |
| 6186530 | Trailer hitch and extension coupling for use therewith An extension coupling releasably interconnects a trailer to a tow hitch on a tractor vehicle. The apparatus includes a trailer mounting assembly adapted to releasably interconnect to the trailer. The trailer mounting assembly includes a hitch box mount ad... | 02/13/2001 |
| 6036428 | System for attaching a towing apparatus to a road tractor A new adapter for attaching a wheel lift apparatus to a road tractor for quickly mounting wheel lift apparatus to the road tractor. The inventive device includes a mounting frame having a gooseneck configuration defining a wide end and a narrow end, with ... | 03/14/2000 |
| 6024372 | Fifth wheel extension adapter An improved fifth-wheel extension adapter is described whose design provides the adaptability necessary for mating of the extension adapter with all known trailer king pin designs, which further provides improved contact with the trailer king pin and whic... | 02/15/2000 |
| 5797615 | Heavy equipment trailer with adjustable tower Heavy equipment trailer having a main deck with a rear gooseneck which is connected to a turntable mounted on a lifting tower carried by a dolly positioned to the rear of the deck. The lifting tower is mounted in a box which is suspended between the side ... | 08/25/1998 |
| 5794960 | Chassis with convertible gooseneck The invention provides an improved chassis for hauling shipping containers over the road. The chassis includes a gooseneck portion having a support surface for engaging the tunnel section of a container. The support surface is manually adjustable and can ... | 08/18/1998 |
| 5775713 | Collapsible goose-neck van trailer A trailer, as part of a tractor-trailer combination, wherein the trailer is an enclosed van having a collapsible goose neck which connects the trailer to the tractor and provides a ramp into the interior of the van, which is a substantially enclosed struc... | 07/07/1998 |
| 5740742 | Road/rail truck tractor A truck tractor adapted for use on railways to tow one or more railcars while retaining the capability to tow highway trailers. A beam assembly with a railcar hitch on the back and a hitch pin underneath the front is latched to the hitch coupler of the tr... | 04/21/1998 |
| 5482309 | Scissor closure coupler for gooseneck trailers A scissor coupler, for attaching to a trailer hitch ball having a widest point and a neck, comprising a top plate, a bottom plate, a hinge bolt, and a main spring connected between the top plate and bottom plate. The hinge bolt attaches the top plate and ... | 01/09/1996 |
