Quotables
"That the automobile has practically reached the limit of its development is suggested by the fact that during the past year no improvements of a radical nature have been introduced."
Scientific American ; Jan. 2 edition, 1909
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| Number | Title | Issue Date |
| 8132817 | Air suspension control apparatus An air suspension control apparatus for a vehicle is disclosed. The apparatus includes a charge tank maintained at a first air pressure such that selective filling of the charge tank with compressed air is permitted. The arrangement is such that, in a first disposit... | 03/13/2012 |
| 8118315 | Trailer with hydraulic bed tilt control A trailer with a tilting bed includes an hydraulic tilt control. The tilt control includes piston-and-cylinder units for restraining or cushioning the pivotal movement of the bed between a transport mode and a tilt mode. A flow control valve provides fine control of... | 02/21/2012 |
| 7976029 | Airplane trailer A trailer having a frame movable between a raised position, suitable for towing of the airplane on a roadway, and a lowered position, allowing the airplane wheels to be in contact with a common surface with the trailer wheels when the trailer is under the airplane. ... | 07/12/2011 |
| 7845652 | Suspension structure for a work machine An arrangement is provided in which the durability of an operation changing means is improved when this means is provided to the suspension mechanism in a suspension structure for a work vehicle. A maximum position (A1) and minimum position (A2) of the... | 12/07/2010 |
| 7735839 | Vehicle air suspension providing integral wheelchair lift A motor vehicle has a frame assembly with a generally flat platform for supporting a wheelchair within the interior compartment of the vehicle. Air cylinders couple the frame assembly to wheel assemblies operate to move the frame assembly to an up vehicle driving po... | 06/15/2010 |
| 7537219 | Trailer wheel system An improved trailer wheel system including a trailer mounting support, a fender mounting support, a main suspension support arm and an air bag. The trailer mounting support is mounted to a trailer platform. The fender mounting support is attached to the trailer moun... | 05/26/2009 |
| 7530577 | Air suspense system for a vehicle An air suspension system for a load bearing vehicle which includes a pair of air springs fluidly connected to a pair of auxiliary air reservoirs and to a main air reservoir. The system includes control valves which permit the air in the air springs to be exhausted t... | 05/12/2009 |
| 7441781 | Lift system for raising the rear of a truck A lift system for integration with the air suspension system of a truck for raising the rear of the truck so that the trailer can be attached and the landing gear let up includes an air dump valve, two air control switch valves, one one-way valve, one air gauge rate... | 10/28/2008 |
| 7416190 | Air suspension system for a vehicle An air suspension system for a load bearing vehicle which includes a pair of air springs fluidly connected to a pair of auxiliary air reservoirs and to a main air reservoir. The system includes control valves which permit the air in the air springs to be exhausted t... | 08/26/2008 |
| 7347436 | Wheel suspension system, and vehicle including same A suspension system for a wheel has an elongate post member, a wheel mount adapted for mounting the wheel, an axle for rotatably mounting the wheel mount on the elongate post member, a frame adapted to slidably receive the post member such that the post member slide... | 03/25/2008 |
| 7322627 | Vertically adjustable truck bed A truck is disclosed with a vertically adjustable bed to facilitate cargo loading and unloading. The truck includes a U-shaped frame within which the vertically adjustable bed is located. The vertically adjustable bed is movable between elevated and lowered position... | 01/29/2008 |
| 7306239 | Height control system and sensor therefor A sensor for a height control system uses a transducer to detect changes in position of an arm relative to a vehicle and sends a proportional signal to a microprocessor that, in turn, actuates a pneumatic valve operably connected to an air spring between the arm and... | 12/11/2007 |
| 7293781 | Anti-creep trailer locking mechanism An anti-creep locking mechanism for a trailer suspension system is disclosed. The disclosed locking mechanism includes at least one column that may be swung into a first position in a gap formed between a trailer frame and a suspension component to keep a trailer at... | 11/13/2007 |
| 7234720 | Apparatus for supporting and transporting a bleacher A trailer apparatus is for use with a portable bleacher of the type having a lower framework supporting and interconnecting a plurality of generally parallel longitudinally extending bleacher seat assemblies. The framework includes longitudinally spaced laterally ex... | 06/26/2007 |
| 7232004 | Low load floor motor vehicle A step-down power transfer device for providing a dropped drive line in a front engine and rear drive vehicle. The step-down power transfer device is preferably chain or gear driven. A preferred vehicle a includes a power train having a longitudinally mounted front ... | 06/19/2007 |
| 7226064 | Locking anti-motion suspension A skid steer vehicle has a suspension that includes a control arm pivotally coupled to the vehicle chassis that is supported by a hydraulic cylinder connected to an accumulator to provide springing. A hydraulic circuit coupled to the cylinder and accumulator permit ... | 06/05/2007 |
| 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 |
| 7192033 | Trailing arm suspension and height control system with motorized valve therefor A trailing arm suspension for a vehicle. The trailing arm suspension having a height control system for controlling the ride height of the suspension relative to the vehicle. The height control system preferably comprises a motor driven height control valve. ... | 03/20/2007 |
| 7163212 | Portable transportation assembly A portable transportation assembly 10 having a pair of wheels 40, 42 which may be selectively raised and lowered and which is adapted to transport a bathroom assembly 200 in an easy and efficient manner. ... | 01/16/2007 |
| 7137642 | Load coupling apparatus for a wheeled vehicle A load coupling apparatus for a wheeled vehicle includes load linkage members that pivotally suspend the vehicle and load weight below the axles of the vehicle, allowing limited relative displacement of the axles and the load in the direction of vehicle travel. The ... | 11/21/2006 |
| 7111854 | Trailer sub-frame assembly A sub-frame assembly for use with a vehicle having wheels such as a trailer is provided. The sub-frame assembly comprises two or more frame members, one or more cross members, and two or more stub torsion axle assemblies. Each of the stub torsion axle assemblies hav... | 09/26/2006 |
| 7097186 | Industrial vehicle having body structure An industrial vehicle includes a vehicle body, a pair of rear wheels, a rear axle for supporting the rear wheels, a lock cylinder, a counterweight and a coupling portion. The rear axle is supported to be pivotable relative to the vehicle body. The lock cylinder is l... | 08/29/2006 |
| 7072763 | Intelligent load distribution system A vehicle information system has a first load sensor for generating a first load signal based on a first vehicle load. A first position sensor generates a first position signal based on a position of a vehicle axle. A second position sensor generates a second positi... | 07/04/2006 |
| 7066479 | Axle housing suspension seat assembly A vehicle axle assembly is provided including an axle housing having legs extending along an axis. Each housing leg has a wall defining an interior cavity with the wall having a first locating feature formed therein. The first locating feature may be an indentation ... | 06/27/2006 |
| 7063494 | Truck bed design for automotive and equipment delivery The present invention is directed to a specialized truck bed wherein the bed is divided into two areas or deck sections connected by a transverse hinge. The invention is also directed to a winch system for use on a vehicle. The invention is further directed to an im... | 06/20/2006 |
| 6991239 | Height control system and sensor therefor A sensor for a height control system in a trailing arm suspension uses a transducer to detect changes in position of a trailing arm relative to a vehicle and sends a proportional signal to a microprocessor that, in turn, actuates a pneumatic valve operably connected... | 01/31/2006 |
| 6959932 | Electronic height control A method for controlling the ride height in a suspension of an over the highway truck or tractor based on rear axle load. A load on the rear axle is measured. An optimum ride height is calculated at core response to correct drive lighted angles based on the rear axl... | 11/01/2005 |
| 6948721 | Variable leveling valve apparatus for a vehicle The invention is disclosed to variably control the amount of compressed air flowing per unit hour depending on the change in the level position of the wheel axles in a moving vehicle when the compressed air flows into air springs from the leveling valve or when the ... | 09/27/2005 |
| 6945744 | Trailer bed system A trailer bed system for loading/unloading a trailer without the usage of ramps. The trailer bed system includes a main frame with a plurality of supporting wheels, a deck frame pivotally attached to the main frame, and a front hitch structure pivotally attached to ... | 09/20/2005 |
| 6945548 | Air spring and air spring mounting assembly A non-torque reactive air suspension exhibiting excellent roll stability characteristics is shown to include frame hangers mounted to frame rails extending longitudinally on opposite sides of a vehicle. Longitudinally extending beams are connected to the frame hange... | 09/20/2005 |
| 6923452 | Drop down trailer A trailer for use as an ice fishing house or for transporting a load from one area to another has a frame and a load bearing platform attached to the frame which is capable of being moved from a travel position to a ground level position. A lifting mechanism is loca... | 08/02/2005 |
| 6892131 | Vehicle tracking, communication and fleet management system A vehicle fleet management information system for identification of location and direction of movement of each vehicle in the fleet in real-time and automatic communication directly with management offices to report its location and heading, and status of predetermi... | 05/10/2005 |
| 6857643 | Elevating trailer apparatus An elevating trailer for moving between a low, cargo-loading position and an elevated, cargo-transporting position. The frame of the trailer has opposing sides, each side carrying a pair of tandem wheels. An inflatable air bag is mounted on a supporting and pivotal ... | 02/22/2005 |
| 6786509 | Vehicle suspension with a dock height holding device A vehicle suspension assembly includes a height holding device that is at least partially supported within an air spring of the suspension assembly. The height holding device includes a hydraulic ram. A moveable portion of the hydraulic ram moves between a first pos... | 09/07/2004 |
| 6752402 | Level control system for a motor vehicle A level control system for a motor vehicle having a vehicle body includes a plurality of air springs which can be filled or discharged with pressurized air to control the level of the vehicle body. A first control apparatus controls the functions of filling and disc... | 06/22/2004 |
| 6715778 | Radio frequency-controlled axle/suspension lift system A control system for a heavy-duty vehicle such as a dump-type straight truck includes a portable radio frequency transmitter and a radio frequency receiver. The radio frequency receiver is operatively connected to a vehicle device or assembly which performs a functi... | 04/06/2004 |
| 6634655 | Dock height hold device A dock height hold device is provided for a vehicle including a frame supporting a cargo area. A suspension is pivotally connected to the frame and supports an axle. Air springs, which are typically a part of an active ride suspension system, are arranged... | 10/21/2003 |
| 6619673 | Mechanism for fixing the height of the trailer floor at a plurality of levels by fixing the angular position of a pivoting suspension component A mechanism is disclosed for controlling the vertical position of the transport trailer floor of a heavy trailer bearing vehicle having a pivoting air spring suspension system such that the transport trailer floor maintains a fixed position level to an ad... | 09/16/2003 |
| 6530580 | Suspension assembly related application A lowerable suspension assembly for the deck of a vehicle is elevated and lowered by air springs between a travel position when the deck is horizontally disposed and a loading and unloading position when the deck is inclined and one end is in contact with... | 03/11/2003 |
| 6412789 | Semi-trailer suspension air spring control system An automatic pneumatic control system for the air springs of a semi-trailer air-ride trailing beam-type axle/suspension system. A plurality of conduits and valves of the control system pneumatically interconnect one or more sources of compressed air, the ... | 07/02/2002 |
