Celebrity Inventors
Mark Twain (Samuel L. Clemens) received Patent No. 121,992 for "An Improvement in Adjustable and Detachable Straps for Garments." He later received two more patents: one for a self-pasting scrapbook and one for a game to help players remember important historical dates.
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| Number | Title | Issue Date |
| 7845657 | Quick change load wheel assembly A load wheel assembly for a materials handling vehicle includes first and second spaced side members, at least one rotatable roller extending between the first and second side members and a retainer for holding the roller in the side members. An interface structure ... | 12/07/2010 |
| 7329161 | Amphibious recreation vehicle An amphibious passenger vehicle having several open or covered holes and a surrounding cover to accommodate fishing and hunting. An aft mounted engine, forward/reverse transmission, drive linkage and disk/caliper brake assembly controls a pair of rear wheels. Electr... | 02/12/2008 |
| 7261177 | Pneumatic locking pin operating system for a trailer slider A locking pin system is operated through an air spring which rotates a torque tube to remove a spring bias from a multiple of locking pins. Operation of the locking pin system is controlled by a trailer spring brake valve which operates in response to actuation of t... | 08/28/2007 |
| 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 |
| 7175189 | Booster axle pivot mount A mounting bracket is attachable to a vehicle frame for pivotally connecting a booster axle assembly comprising a pair of spaced arms, each arm having a first end, a second end, and an axle connected therebetween. The mounting bracket includes a U-shaped portion hav... | 02/13/2007 |
| 7163220 | Slider mechanism for a vehicle A slider assembly provides a connection between a vehicle body and a vehicle suspension. The slider assembly includes a frame and a locking mechanism attached to the frame. The locking mechanism s a locking pin that is connected to an extension spring, a pivot arm t... | 01/16/2007 |
| 7152866 | Steerable and liftable independent suspension system A liftable independent suspension system which may also be steerable. In a described embodiment, a liftable suspension system for use on a vehicle includes wheel spindles positioned to extend outwardly at each respective lateral side of the vehicle. The spindles are... | 12/26/2006 |
| 7144031 | Suspension isolator equalizer An isolator for use in a suspension system includes a front shaft and a rear shaft. A front spring arm and a front transitional arm are mounted to the front shaft. A rear spring arm and a rear transitional arm are mounted to the rear shaft. A resilient member is mou... | 12/05/2006 |
| 7097192 | Trailer slider locking pin interlock with parking brake A slider locking pin control receives feedback of the actual position of the locking pins. If the locking pins are not engaged in the trailer frame rails, then the interlock valve will vent air to release a parking brake. Once the locking pins are engaged, the inter... | 08/29/2006 |
| 7077410 | Vehicle suspension system A suspension system connects a wheel axle to a vehicle frame and includes a trailing arm connected at one end to the wheel axle. A pair of extension members are connected to the other end of the trailing arm and extend laterally in opposite directions along a pivot ... | 07/18/2006 |
| 6938716 | Concrete mixing truck anti-rollover system An anti-rollover system is used with a concrete mixing truck with a mixing drum, in particular during turning maneuvers, for preventing rollovers by the truck. The anti-rollover system is comprised of one or more sensors on the truck which generate an input signal r... | 09/06/2005 |
| 6935625 | Air suspension system with air shut off valve An air suspension control system, primarily for use with a vehicle, which increases ride stability and minimizes air losses to the air suspension control system during normal operation of the vehicle by utilization of an air restriction valve to restrict the air int... | 08/30/2005 |
| 6932173 | Steered vehicle The steered vehicle, which may be a road vehicle or a vehicle devised to be usable upon road surfaces and also upon a rail line, has road wheels or a combination of road and rail wheels as required. The wheels are mounted upon a bogie pivoted about a generally verti... | 08/23/2005 |
| 6874800 | Hospital bed wheel linkage apparatus A patient support including a linkage assembly providing communication between at least one front wheel and at least one rear wheel. ... | 04/05/2005 |
| 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 |
| 6478317 | Swing-frame assembly for tag axle A swing-frame auxiliary axle system for a work vehicle having a main frame including spaced chassis rails is disclosed which includes a pivot frame having a pair of spaced pivot arms connected by a common torque tube and each of which is pivotally mounted... | 11/12/2002 |
| 6315311 | Self-stowing wheeled support structure A wheeled support structure reversibly deployable from a stowed condition on the bed of a trailer to aid in rolling support of a load thereupon is provided. The support structure includes a frame, pivotable through a range of motion exceeding 90 degrees a... | 11/13/2001 |
| 5897123 | Tag axle pivot The present invention provides a work vehicle having a frame and an auxiliary axle system having an arm assembly including a pair of arms, an elongate tube extending between the arms and having an end attached to each of the arms, a pair of levers attache... | 04/27/1999 |
| 5540454 | Tag axle assembly A tag axle assembly has a frame having a pair of hanger brackets, an upper cross tube and a lower cross tube. A pair of rocker beams having a primary pivot for pivotally mounting the rocker beam to the support frame is mounted to the frame. A suspension a... | 07/30/1996 |
| 5516135 | Tag axle latching mechanism A tag axle latching mechanism is disclosed that includes opposed matching engaging components wherein a first is attached to a tag axle system and a second is attached to a truck frame. The components cooperate to direct supporting forces associated with ... | 05/14/1996 |
| 5340141 | Lift systems for elevating the load bed of a vehicle There is disclosed a vehicle having a load bed which has a back end that is supported by a wheel set which has a frame that is pivotally mounted below the back end and has extensible air bags connecting the frame to the back end of the load bed. The air b... | 08/23/1994 |
| 5127663 | Tandem trailer truck for transporting elongate objects A truck-trailer-trailer combination including an intermediate trailer that has two load carrying bunk assemblies. The intermediate trailer carries the rearward end of a first set of elongate objects and the forward end of a second set of elongate objects.... | 07/07/1992 |
| 5112073 | Steering system for load supporting dolly A steerable, load-supporting dolly is provided wherein the dolly is self-steerable in response to the loading thereon. Controllable responsiveness of the steering is provided by at least one king-pin, the castor of which may be selectively varied.... | 05/12/1992 |
| 5018755 | Tag axle for work vehicles The present invention is directed to a pneumatic system for (a) raising and lowering the tag axle assembly and (b) applying a variable downward force to the wheels of the tag axle assembly when the wheels are in their ground engaging position. This system... | 05/28/1991 |
| 4993729 | Vehicle suspension An over the highway truck or tractor suspension with traction enhancement. Air springs are provided for the rear axles of a 2×6 vehicle. Normally the load is evenly divided between driven and tag axles. When enhanced traction is desired, the tag axle spr... | 02/19/1991 |
| 4988115 | Undercarriages An undercarriage for pivotable supporting the front end of a trailer with the undercarriage including a set of bolsters that provide a pivoting and rockable connection between a box on the trailer and the front undercarriage to reduce stress on the box wi... | 01/29/1991 |
| 4940287 | Load enhancer for dump trucks Apparatus which enhances the load carrying capacity of a dump truck without interfering with dumping of the dump bed. A rigid frame which is added to the back end of the truck includes a beam carrying an axle and a pair of wheels. A hydraulic cylinder piv... | 07/10/1990 |
| 4936596 | Detachable auxiliary load-carrying apparatus for mobile equipment A detachable auxiliary load-carrying apparatus for mobile equipment includes first frame structure fixed to the mobile equipment, second frame structure detachably connectable to the first frame structure and having at least one pair of wheels rotatably m... | 06/26/1990 |
| 4812044 | Tag axle assembly with limit switch A concrete mixing vehicle having a retractable tag axle assembly and a distribution chute is disclosed. To ensure that the tag axle assembly does not come into contact with the distribution chute as the tag axle assembly as it moves between a first ground... | 03/14/1989 |
| 4783096 | Stacked airbag wheeled vehicle suspension system An air ride suspension system having very high (height) carrying and/or lift capabilities includes a pair of stacked, expandable airbags connected to the frame of a wheeled vehicle such that there is a lower beam for supporting the stack and an intermedia... | 11/08/1988 |
| 4762421 | Tag axle assembly for work vehicles An auxiliary tag axle assembly for a work vehicle such as a ready-mix concrete truck which is positionable via actuation of a linear actuator to extend the wheel assembly from the rear end of the vehicle's frame to a ground engaging disposition and retrac... | 08/09/1988 |
| 4726598 | Apparatus for increasing the vertical travel of auxiliary wheels mounted on a vehicle An apparatus for increasing the vertical travel of auxiliary wheels mounted on an auxiliary axle includes a lever rotatably mounted on the auxiliary axle and a wheel mounting spindle secured to the lever spaced from its mounting on the auxiliary axle to d... | 02/23/1988 |
| 4705133 | Tag axle assembly for work vehicle An add-on wheel/axle assembly for truck-type vehicles for reducing the effective axle load of the vehicle allowing the carrying of greater payloads without violating governmentally imposed road restrictions. The assembly includes a hydraulically actuatabl... | 11/10/1987 |
| 4684142 | Steerable auxiliary axle A tag axle assembly and means for mounting it to a transit concrete mixing truck are disclosed. The assembly includes a tag axle frame having a forward, longitudinally extended stem and two rearwardly extending and diverging legs. The stem is mounted to a... | 08/04/1987 |
| 4588201 | Hydraulic system for an auxiliary load transfer device A hydraulic system for an auxiliary load transfer device pivotally connected to the rear of a truck includes a sequence valve for preventing the build-up of excess fluid pressure in the main hydraulic line between a pump and a hydraulic cylinder that oper... | 05/13/1986 |
| 4553773 | Load equalizer valve and suspension system A tandem axle suspension in which the air pressure in an air spring (28) is controlled by a valve (40) which in turn is responsive to the load at the end of a leaf spring (12) to balance the load on a leaf spring axle (14) with the load on a tag axle (30)... | 11/19/1985 |
| 4501437 | Load transfer axle assembly A high clearance, variable load transfer axle assembly is mounted between the forward steerable and rearward drive wheels of a transit mixer truck to selectively support a portion of the weight of the truck and its load. A drive shaft extends longitudinal... | 02/26/1985 |
| 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 |
| 4421331 | Auxiliary load-carrying apparatus This invention relates to an auxiliary load-carrying apparatus for use with such load-carrying vehicles as self-transit concrete mixer trucks. The apparatus consists of two power-actuated devices having ground-engageable wheels which are selectively movab... | 12/20/1983 |
| 4398738 | Self-steering and retractable axle assembly A semi-trailer construction including forward coupling structure for universal coupling and support from a towing vehicle, a rear portion from which wheeled running gear is supported and an intermediate portion dependingly supporting supplemental wheeled ... | 08/16/1983 |
