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| Number | Title | Issue Date |
| 8118316 | Operational methods for a road-building machine A method of operating a road-building machine involves a machine having a chassis with four ground engaging supports and four working cylinders connecting the ground engaging supports to the chassis. A height of the left front and right rear ground engaging supports... | 02/21/2012 |
| 7354067 | Compact caster wheel system A compact caster wheel system for use with a skid steer vehicle, includes first and second auxiliary lift unit assemblies being spaced apart and disposable on respective left and right side margins of the skid steer vehicle and disposable rearward of the rearmost dr... | 04/08/2008 |
| 7354051 | Independent suspension system for a wheeled vehicle An independent suspension system for a wheeled vehicle includes a modified shock absorber, a leaf spring, and a wheel carrier. The shock absorber includes a cylinder, and a rod passing through the cylinder. The shock absorber is vertically mounted in a condition whe... | 04/08/2008 |
| 7350793 | Vehicle suspension roll control system A roll control system for a vehicle including: two double-acting rams (1, 2) at the first end of the vehicle and two single acting rams (3, 4) at the second of the vehicle; each double-acting ram (1, 2) including a first and a second fluid chamb... | 04/01/2008 |
| 7325786 | Multi-speed drop leg mechanical jack for use with a trailer A mechanical jack that is used with trailers that has a functional combination of several working gears as well as a drop leg feature is disclosed. The mechanical jack has a gearbox having gears that not only have the capacity to handle a relatively heavy load, but ... | 02/05/2008 |
| 7311331 | Method and apparatus for raising and lowering a trailer A combination is disclosed having a trailer, telescoping support members, and a drive. The drive has a motor and a drive shaft, and the drive shaft has a first end portion affixed to a first cross member and a second end portion affixed to a second cross member. The... | 12/25/2007 |
| 7258363 | Landing gear assembly for a trailer A landing gear assembly for supporting a trailer. The landing gear assembly having first and second legs and a connecting member. Each leg is configured to selectively extend and retract in length. The connecting member operatively connects the first and second legs... | 08/21/2007 |
| 7243753 | Carrier vehicle for drilling or rockbolting machine The invention relates to drilling or rockbolting machines, for the execution of underground works, in particular in mining operations. The carrier vehicle comprises a chassis and four wheels, all driving wheels, with two wheels situated on the right-hand side of the... | 07/17/2007 |
| 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 |
| 7195258 | Mobile thick matter pump comprising a support construction and a pneumatic air-cushioned wheel axle A mobile viscous matter pump comprising a hydraulically operated support construction, a distribution boom (16) and a pneumatic cushioned trailing axle (42). To ensure stability during the pump operation, the trailing axle (42) can be lifted by ... | 03/27/2007 |
| 7163207 | Demountable drive mechanism A demountable drive mechanism for coupling to a drive shaft of an operating device, the drive mechanism being directly secured to the drive shaft to cause the drive shaft to rotate, the drive mechanism comprising a geared electric motor having an output for coupling... | 01/16/2007 |
| 7131651 | Chassis with height adjustable wheels for regulating orientation of a chassis member A chassis is described which is constructed of two lower side frames which at each end are provided with a wheel or caterpillar track. On each of the two lower side members, there is a horizontal bearing. Each of these bearings are connected to an upper vertical sid... | 11/07/2006 |
| 7055859 | Landing gear and method of assembly Landing gear for selectively supporting a semitrailer and a method of assembly of the landing gear is provided. The landing gear includes a leg having an upper section and a lower section telescopingly received in the upper section. A lead screw extends and retracts... | 06/06/2006 |
| 7025361 | Electronic controller for a vehicle leveling system and vehicle leveling system comprising same An electronic controller for a vehicle leveling system comprises an extend-enable switch, a retract-enable switch, an all-activate switch, and at least one group-activate switch. It is configured to generate an all-extend electronic signal upon coordinated actuation... | 04/11/2006 |
| 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 |
| 6926305 | Air, electric and hydraulic landing gear jack A trailer landing gear drive system in which pneumatic, hydraulic and electric motors, as well as the traditional hand crank, are easily interchangeable. The landing gear jack mechanism is disposed to easily connect to any one of these drive motors. The system can u... | 08/09/2005 |
| 6886837 | Hydraulic suspension strut for an amphibious vehicle A hydraulic suspension strut (30) has a first on-off valve (58) connecting the first and second chambers (42 and 44), and a second on-off valve (62) connected to chamber (42) only. Suspension arm (3) of wheel (1 | 05/03/2005 |
| 6848693 | Pseudo four-leg vehicle leveling system with independent leg lock-out A pseudo four-leg leveling system for a vehicle, such as a recreational vehicle or the like, includes four jacks in the form of hydraulic cylinders mounted in pairs at the front and rear of the vehicle. A power system supplies hydraulic fluid to extend and retract t... | 02/01/2005 |
| 6598886 | Powered trailer jacking system A demountable drive mechanism for the landing gear of a semi-trailer, the landing gear including legs that are extendable and retractable by rotation of a drive shaft through a gear mechanism, the drive shaft being axially displaceable to change the ratio... | 07/29/2003 |
| 6273435 | Trailer with non-tilting movable bed A trailer for use in transporting a load from one area to another area has a frame and a bed operatively mounted to the frame which is capable of being moved from a first or lowered position to a second or elevated position in a substantially vertical man... | 08/14/2001 |
| 6270098 | Load distribution unit for vehicle suspension system A load distribution unit is utilized in a vehicle suspension system having at least one pair of laterally adjacent forward wheel assemblies, and at least one pair of laterally adjacent rear wheel assemblies. A wheel ram is associated with each of the whee... | 08/07/2001 |
| 6250650 | Automatic fifth wheel loading and unloading system An automatic fifth wheel loading and unloading system which is designed to automatically unlock and disengage a trailer from the fifth wheel apparatus in a towing vehicle such as a pickup truck and level and then recouple the trailer to the vehicle. The a... | 06/26/2001 |
| 6217044 | Steerable and retractable wheels for multi-purpose carriage Wheel assemblies for attachment to a carriage or a vehicle. The wheel assemblies can be configured for four wheel steering, locked in predetermined directions, or free pivoting. The wheel assemblies further include an apparatus for retracting and extendin... | 04/17/2001 |
| 6199875 | Tilting apparatus having actuators, and a tilting bogie having actuators A tilting apparatus for tilting a body (4) of a vehicle, the apparatus being disposed in a bogie underframe, and secondary suspensions (3) being disposed under the body (4) of the vehicle, the tilting apparatus being characterized in that it includes firs... | 03/13/2001 |
| 6015155 | Motor vehicle suspension system A motor vehicle suspension system includes rear suspension units to adjust ride height between sprung and unsprung parts of the vehicle, control means for monitoring and maintaining ride height at a particular setting and wheel speed monitoring means for ... | 01/18/2000 |
| 6012724 | Wheel suspension system Wheel suspension system for a vehicle having a frame and a wheel oriented in a longitudinal direction of the vehicle. The system includes an axle beam coupled to the frame of the vehicle and a traction motor coupled to the wheel for rotating the wheel. Th... | 01/11/2000 |
| 5967529 | Vehicle with vertically movable and vertically pulsating wheels An all-terrain vehicle including centrally pivoted bogies on opposite sides of the vehicle body, a primary yoke mounted on the vehicle body and extending crosswise to the vehicle body for coupling the bogies to each other, a secondary yoke mounted on the ... | 10/19/1999 |
| 5915701 | Vehicle suspension system A vehicle having a load support body, and a pair of front ground engaging wheels and a pair of rear ground engaging wheels connected to the body to support the body is shown, with each wheel being displaceable relative to the body in a generally vertical ... | 06/29/1999 |
| 5915700 | Pseudo four-leg semi-automatic vehicle leveling system A pseudo four-leg leveling system for a vehicle, such as a recreational vehicle or the like, includes four jacks in the form of hydraulic cylinders mounted to the vehicle frame. Two jacks are located adjacent to the rear the vehicle and two jacks are loca... | 06/29/1999 |
| 5901969 | Vehicle leveling system with latching movement of jacks A system for leveling a vehicle such as a recreational vehicle or the like includes three jacks in the form of hydraulic cylinders mounted to the vehicle frame. A series of manually actuated switches, oriented in a diamond pattern, are located within the ... | 05/11/1999 |
| 5890721 | Vehicle leveling system with excess slope indicator A system for leveling a vehicle such as a recreational vehicle or the like includes three jacks in the form of hydraulic cylinders mounted to the vehicle frame. A series of manually actuated switches, oriented in a diamond pattern, are located within the ... | 04/06/1999 |
| 5755382 | Self-propelled sprayer A self-propelled sprayer having individually rotatable wheels and a pair of wing extensions for a spraying boom, with the wheels able to be turned in line with the boom for transport or turned 90 degrees for spraying, with a GPS receiver to determine the ... | 05/26/1998 |
| 5368434 | Self-propelled straddle carrier A self-propelled straddle carrier for straddling, lifting, supporting and carrying heavy loads directly under the structure of the vehicle. A main frame including a pair of spaced-apart, longitudinally extending side beams and arch-shaped cross beams is s... | 11/29/1994 |
| 4951767 | Vehicle suspension lock system A vehicle suspension lock system for a tree feller-buncher comprising a pair of pivot arms extending transversely from a vehicle frame. Track pods are mounted on the outer end of each pivot arm and a hydraulic cylinder is extensibly disposed between the f... | 08/28/1990 |
| 4836564 | Road-finishing machine A road-finishing machine provided with a level-compensation arrangement. A directional wheel installed on each side of a frame includes an axle to which a vertical pin is attached. The pin is slidably and rotatably accomodated with a cylinder housing havi... | 06/06/1989 |
| 4696152 | Apparatus for leveling a combine Apparatus for leveling the front axle of an agricultural combine includes left and right wheel linkages in the form of four-bar linkages. A connecting rod synchronizes the motion of the four-bar linkages. Hydraulic cylinders are connected between the vehi... | 09/29/1987 |
| 4600069 | Trailing arm suspension An undercarriage (12) includes a primary frame (22) and a plurality of secondary frames (26) which in turn carry wheel members (28). The secondary frames (26) are urged to pivot away from the primary frame (12) by spring mechanisms (38). An undercarriage ... | 07/15/1986 |
| 4595069 | All terrain/high speed undercarriage An undercarriage (12) includes a primary frame (22) and a plurality of secondary frames (26) which in turn carry wheel members (28). The secondary frames (26) are urged to pivot away from the primary frame (12) by spring mechanisms (38). The center second... | 06/17/1986 |
| 4541652 | Lifting and steering device for a steering wheel of a vehicle A lifting and steering device for a steering wheel of a vehicle comprising a main fixed tubular body, a second tube, a wheel support fixed rigidly to said second tube, a shaft mounted for rotation in the upper closed end of said tubular body, a first coup... | 09/17/1985 |
| 4534575 | Vehicle suspension and steerage system A suspension and steerage system is disclosed for a wheel supported vehicle. A suspension arm assembly of parallelogram configuration is pivotally attached to one side of the main frame and freely supports a wheel spindle. The piston rod of a hydraulic mo... | 08/13/1985 |
