"The Americans have need of the telephone, but we do not. We have plenty of messenger boys."
Sir William Preece, chief engineer, British Post Office ; 1878
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| Number | Title | Issue Date |
| 8002294 | Vehicle wheel assembly with a mechanism compensating for a varying wheel radius A non-circular wheel assembly for vehicles. The wheel assembly includes a wheel body having a first radius and a second radius, measured from a center of rotation of the wheel body. The wheel assembly includes a compensation mechanism compensating for changing heigh... | 08/23/2011 |
| 7658391 | Enclosed axle drive The present application is to power an electric vehicle using this compact method of transmitting rotational energy and movement with three main parts, two of which are identical (33) (34). But this type of simple design could have nanotechnology appli... | 02/09/2010 |
| 7410180 | Door positioning device A door positioning device for use in a ground surface having an elongated platform with an upper surface and a lower surface. The platform also includes a first end portion and a second end portion. At least one wheel is located at the second end portion of the plat... | 08/12/2008 |
| 7353566 | Adjustable wheel assembly An improved wheel assembly comprises a caster fork, a caster wheel rotatably supported by the caster fork, and a caster swivel post defining an axis about which the caster fork rotates. The caster swivel post is being adapted to rotate about a pivot axis within a cy... | 04/08/2008 |
| 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 |
| 7267348 | Vehicular suspension systems A vehicular suspension system has a hanger to attach beneath a vehicle, a rocker pivoted at a first end to the hanger and attached proximate a second end to an axle, a shock absorber extending between the hanger and an intermediate position on the rocker, as well as... | 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 |
| 7097381 | Joint A joint for the movable connection of two components of a motor vehicle, which are movable in relation to one another, with a housing (1) and with a bearing shell (2) accommodated in the housing (1) for the slidingly movable mounting of a mount ... | 08/29/2006 |
| 6994364 | Wheelchairs A wheelchair (10) comprises a seat member (14) pivotally mounted on support beam (16) of a chassis (12). The chassis (12) includes a pair of spaced-apart side elements (18), each depending from the support beam (16) a... | 02/07/2006 |
| 6964083 | Caster for baby carriage A caster for a baby carriage is composed of: a caster holder mounted to a front leg of a baby carriage; a caster column provided at the caster holder and having a flange-shaped portion at its lower end, wherein the caster bearing member is slidably and rotatably mou... | 11/15/2005 |
| 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 |
| 6719309 | Multi-axle unit having at least three axles A multi-axle unit for a semi-trailer that is towed by a tractor vehicle and has at least three axles, at least one of the axles of the multi-axle unit being capable of being configured as a lifting axle and/or steered axle and all axles except for at least one axle ... | 04/13/2004 |
| 6488297 | Suspension device of industrial vehicle A suspension device suspends a driving wheel and a caster, which are laterally spaced from one another. A cab is located above the caster. A drive unit support supports a drive unit to which the driving wheel is attached. The drive unit support is fixed t... | 12/03/2002 |
| 6135468 | Front-wheel drive automobile having run-flat tires An automobile having a pair of front wheels and a pair of rear wheels provided with run-flat tires. The front tired wheels which are steerable are driven through a power transmission by an engine housed between these wheels. The tired front wheels are rel... | 10/24/2000 |
| 6024381 | Simulator for teaching vehicle speed control and skid recovery techniques An apparatus with a tire that is capable of castering 360 degrees replaces the rear wheels of a front wheel powered automotive vehicle to give drivers an educational experience that simulates the effects excessive speed has upon entry into curves and turn... | 02/15/2000 |
| 6012730 | Cable-type steering device A cable-type steering device is provided in which a sterring wheel and a gear box are connected to each other by wires, wherein a pulley to which wires are connected can be easily assembled to housings, while maintaining the enire length of the wire at a ... | 01/11/2000 |
| 5626362 | Simulator for teaching vehicle speed control and skid recovery techniques An apparatus with a tire that is capable of castering 360 degrees replaces the rear wheels of a front wheel powered automotive vehicle to give drivers an educational experience that simulates the effects excessive speed has upon entry into curves and turn... | 05/06/1997 |
| 5507511 | Means for controlling an air powered actuator for retracting the locking pins of a slider A control circuit is provided for controlling the operation of the solenoid of an air powered actuator which is utilized for retracting the locking pins of a slider used for the adjustment of the suspension of a vehicle longitudinally with respect to the ... | 04/16/1996 |
| 5476277 | Safety switch and delay switch for an air powered actuator for retracting the locking pins of a slider A safety switch and delay switch is provided for an air powered actuator which is utilized for retracting the locking pins of a slider which is used for the adjustment of the suspension of a vehicle longitudinally with respect to the body of the vehicle. ... | 12/19/1995 |
| 5449190 | Trailer pin puller A detached pin pulling accessory for removing pins locking a bogie to a trailer chassis. The puller is intended for use with a trailer having pin pulling equipment which is intended to be pulled by hand. The pin pulling equipment has a handle extending to... | 09/12/1995 |
| 5431423 | Boat and utility trailer A boat and utility trailer including an elongated, cylindrical wheel rotatably mounted on the trailer axle between the conventional trailer wheels to support the trailer on sand, mud or the like as the trailer is towed over soft terrain by a vehicle. In a... | 07/11/1995 |
| 5232234 | Pneumatically operated adjustable sliding trailer support A pneumatically operated adjustable trailer chassis includes a frame which slides with respect to the trailer portion of a tractor trailer rig. The frame carries wheels with the sliding support portion so that the wheel position of the wheels can be adjus... | 08/03/1993 |
| 4944522 | Pin retractor for semi-trailer tandems A pneumatically powered pin retractor is disclosed. Semi-trailers comprise tandems which can be slid forward and backward when a set of pins are retracted. In conventional semi-trailers, manually pulling a pin release lever located on the side of the tand... | 07/31/1990 |
| 4919445 | Trailer rear wheel slidable mounting assembly A slider for repositioning the rear wheels of a tractor trailer unit includes a carriage having parallel lateral box members longitudinally slidably nested by longitudinal extending trailer bed rails. The rails are normally anchored to the box members by ... | 04/24/1990 |
| 4813507 | Axle beam including a protecting member An axle beam for the rear wheel suspension of a front-engine front-wheel drive vehicle is disclosed. An axle beam body extends in the transverse direction of the vehicle with both ends thereof attached to wheel hubs, and trailing arms and springs connect ... | 03/21/1989 |
| 4693486 | Trailing arm suspension with wrapper compression axle mounting A vehicle suspension system for mounting ground-engaging wheels to a vehicle frame where two arms are secured to opposite sides of the frame and a wheel-carrying axle is suspended between the arms. The axle is secured to the arms by a wrapper plate partia... | 09/15/1987 |
| 4678197 | Arrangement for influencing the keeping of a driving direction by a motor vehicle An arrangement for influencing the keeping of a driving direction by a motor vehicle, which has at least one non-driven wheel support body which is mounted on a wheel suspension for rotation about an axis, in such a manner as to be able to conduct driver ... | 07/07/1987 |
| 4580801 | Device for mounting an axle of a rearwardly connected vehicle in twin-engine type motor scraper A device for mounting an axle of a rearwardly connected vehicle in twin-type motor scraper has first and second support brackets fixedly secured to and projecting from both the left and right sides of a bottom portion of a rear frame of the vehicle, a thi... | 04/08/1986 |
| 4520876 | Gauge and guide wheel assembly A guide and gauge wheel assembly for a tool bar row crop planter has an arm mounted on the tool bar and pair of wheels rotatably mounted on non-linear axles. The axles are selectively mounted on lateral sleeves and upwardly and outwardly inclined sleeves ... | 06/04/1985 |
| 4501334 | Wheeled excavator having a dozer blade and a boom-mounted stabilizer wheel An excavator has an undercarriage supported on three pair of driven ground wheels. The middle pair of wheels is disposed lower than the remaining wheels so as to enhance the skid-steering ability of the excavator. A dozer blade is mounted to the front of ... | 02/26/1985 |
| 4449600 | Mobile cranes or aerial lift platforms The invention relates to a mobile crane or aerial lift platform vehicle wherein at least one of the axles is extendable and wherein a cylindrical housing carries the extendable axle beam and a steering actuator is carried on at least one of the beams and ... | 05/22/1984 |
| 4423884 | Booster axle connection system for a trailer assembly A trailer assembly comprises a main frame, main axles carrying laterally spaced wheels for supporting the main frame, a suspension system connecting the main axles to the main frame, a kingpin for coupling the main frame to a power unit, a secondary frame... | 01/03/1984 |
| 4386801 | Ground effect vehicle A wheeled vehicle has an undertray shaped to form a venturi duct with a road or like surface over which the vehicle moves, the undertray being carried in substantially fixed relationship with the wheels, so that the vehicle chassis or body can move relati... | 06/07/1983 |
| 4331343 | Wheel construction and arrangement A wheel construction and arrangement wherein a wheel which has a relatively wide surface contact tire, pneumatic, for example, is mounted for rotation in a yoke which extends in the direction of travel of the vehicle which the wheel supports. The yoke is ... | 05/25/1982 |
| 4269423 | Brake and wheel assembly A brake and wheel assembly for vehicles having small diameter wheels and heavy axle loading requiring high capacity braking is disclosed. An axle extension shaft cantilevered transversely on a vehicle frame mounts rotatably a dual wheel hub which also ser... | 05/26/1981 |
| 4178007 | Hydraulic anti-shimmy device for caster wheels A caster wheel supporting arrangement including anti-shimmy means which is particularly useful for vehicles in which the caster wheels may be orientated at different angles to the parts supported thereby during normal forward movement of the vehicle. Such... | 12/11/1979 |
| 4127306 | Offset spindle support An offset spindle and spindle support for a mobile home axle is disclosed, in which the wheel spindle is vertically offset with respect to a conventional axle tube. The offset support comprises a generally cup-shaped stamping and utilizes the backing plat... | 11/28/1978 |
| 4126209 | Mast mounting A lift truck having a frame which includes parallel beams having forward ends that terminate in bifurcated ends forming upper and lower portions with U-shaped openings therebetween adapted to receive a front drive axle assembly therein for forward removal... | 11/21/1978 |
| 4111455 | Method and apparatus for mounting a vehicle wheel on a vehicle frame A vehicle wheel is mounted on spaced apart portions of the vehicle frame. A template is mounted on the frame for aligning an alignment sleeve in the frame. The sleeve is secured on the frame in its aligned position. The template is removed and the wheel i... | 09/05/1978 |
| 4098521 | Wheelchair adaptable for passage in narrow spaces A wheelchair that may be used by disabled persons as a normal self-propelled vehicle and is easily convertible to a narrow attendant-propelled wheelchair for negotiating narrow passages such as airplane aisles and bathroom doors in places not equipped for... | 07/04/1978 |