Did You Know...
...that the video game, Pong, was invented by a guy who graduated at the bottom of his engineering class? Nolan Bushnell spent more time running the games at a local amusement park than he did on his studies at the University of Utah. His dreams of working for Disney's amusement empire were dashed when the company wouldn't hire him. Taking a boring job, Nolan daydreamed about electronic versions of popular games. He invented Pong, the first video game, and went on to found Atari Co.
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| Number | Title | Issue Date |
| 7275488 | Auto rack railway car A railway car for transportation of motor vehicles. The railway car may be articulated, comprising two or more units. The railway car may have end doors which are pivotally attached to the roof of the railway car. Flexible seals may be provided along the inner and o... | 10/02/2007 |
| 7234762 | Trailer edge rail system A trailer edge rail system for use with a trailer having a removable cover includes a mount having a first end adapted to be secured to an edge of the trailer. The mount also includes at least one protrusion extending generally upwardly and parallel to a face of the... | 06/26/2007 |
| 7159949 | Dump door open/close system A debris container of the type used on roadway and pavement sweeper and sweeping vehicles includes a hinged door through which the interior of the debris container may be inspected and through which debris is emptied when the container is elevated and rotated to its... | 01/09/2007 |
| 7059683 | Apparatus for operating commodity trailer hopper trap doors An apparatus for operating first and second commodity trailer hopper trap doors is provided that includes a support frame extending between first and second ends, first and second driveshaft assemblies attached at each end of the support frame, a motor assembly atta... | 06/13/2006 |
| 6966609 | Apparatus for operating commodity trailer hopper trap doors An apparatus for operating first and second commodity trailer hopper trap doors is provided that includes a support frame extending between first and second ends, first and second driveshaft assemblies attached at each end of the support frame, a motor assembly atta... | 11/22/2005 |
| 6953200 | Cart for cryogenic liquid cylinder A cart is provided for safely transporting and storing a single, large, vertically-oriented, cylindrically-shaped canister having a horizontally-oriented base. The vertical and horizontal orientations of the canister and its base, respectively, are constantly mainta... | 10/11/2005 |
| 6932433 | Hopper closure assembly and method of using same A closure mechanism for a hopper bottom trailer which utilizes potential and kinetic energy of granular material in the hopper. The hopper closure assembly may have an angled member upon a gate that translates kinetic energy for moving granular material into longitu... | 08/23/2005 |
| 6557944 | Dump truck apparatus with removable hopper An apparatus capable of adapting a vehicle for use in either of a dump truck mode or a spreader truck mode includes a dump body unit and a removable hopper. The dump body unit has a main frame pivotally interconnected with a dump body. The main frame atta... | 05/06/2003 |
| 6543961 | Device for sealing joints between concrete elements A device for continuous supply of grouting into joints between longitudinal concrete elements, which are disposed chiefly horizontally next to each other to form, e.g., floors in building constructions. The device comprises a rhombic hopper adapted for di... | 04/08/2003 |
| 6488443 | Pull spreader A pull spreader for spreading a surface material such as asphalt on a path. The pull spreader includes an open-bottomed frame having a first side wall and an opposed second side wall, a front wall extending between the first and second side walls, a scree... | 12/03/2002 |
| 6416133 | Control device for trailer gates A conventional dump trailer includes discharge members or doors which are typically mounted beneath the trailer. The movement of the doors is controlled by a control device of the present invention having a position sensor which is mounted on the trailer ... | 07/09/2002 |
| 6386792 | Implement for filling wheel tracks An implement is described for use in filling wheel tracks (e.g. irrigation sprinkler wheel tracks or ruts) with granular fill material. The implement includes a wheeled frame, a hopper with a bottom opening, and a filling guide suspended below the opening... | 05/14/2002 |
| 6217122 | Dual use vehicle with rolling hopper and method A dual use belly dumping and end dumping vehicle is provided, including a frame, having left and right side beams connected together to form an opening therebetween. The frame is mounted on rear wheels for transport. A hopper with sides, ends and an opena... | 04/17/2001 |
| 6113194 | Side unloading dump vehicle A side unloading dump vehicle includes a support having ground engaging wheels. A container is provided having a first side, a second side, and a bottom pivotally attached along the first side. The container is movable relative to the support from a trave... | 09/05/2000 |
| 6095616 | Gravity discharge grain wagon with discharge opening closure system A wheel supported grain wagon includes a box or container with sloping side walls extending to a bottom wall, and a discharge opening is formed within one of the side walls adjacent the bottom wall. An inner metering door or panel and an adjacent outer cl... | 08/01/2000 |
| 6059372 | Hopper bottom trailer An open top vessel containing bulk or liquid material comprising an inclined front wall, an inclined rear wall, and inclined opposite side walls. The walls of the vessel extend downwardly and inwardly from the upper ends thereof towards the lower ends the... | 05/09/2000 |
| 5971494 | Dual use trailer with hopper bottom The hopper bottom trailer has a main frame supported by wheels, a hopper with hopper walls that extend downwardly to a discharge opening and a discharge door, and two side walls. An upper side frame member is attached to each side wall. A front upper fram... | 10/26/1999 |
| 5957538 | Combination belly and rear dump trailer This invention relates to a trailer drawn by a tractor vehicle which includes the combination of a rear and belly dump and in which the trailer rear wheel assembly remains entirely on the ground when the means for elevating the trailer for rear dump is ma... | 09/28/1999 |
| 5782524 | Curved wall trailer construction A trailer construction includes first and second spaced apart trailer side walls. A bottom wall is provided between the side walls and includes a forward sloping portion, a rear sloping portion and an intermediate portion therebetween. The forward and rea... | 07/21/1998 |
| 5753532 | Method of manufacturing semiconductor chip package A method for manufacturing semiconductor chip package comprising steps of: (a) preparing a lead frame which comprises a pair of opposing side rails which have a plurality of through holes on their upper surface; a die pad onto which a chip will be mounted... | 05/19/1998 |
| 5556807 | Advance multilayer molded plastic package using mesic technology A method and resulting structure for constructing an IC package utilizing thin film technology. The package has a bottom conductive plate that has a layer of ceramic vapor deposited onto the plate in a predetermined pattern. Adjacent to the insulative lay... | 09/17/1996 |
| 5551759 | Dual use materials transport vehicle with belly-dumping and improved end-dumping capabilities and method of construction A dual use belly-dumping and end-dumping vehicle includes a frame mounted on wheels for transport and a pivotable hopper carried in the frame. A lower pivot element is mounted to the frame with a corresponding lower pivot engaging element mounted on the h... | 09/03/1996 |
| 5417165 | Self-clearing discharge door assembly for railroad ballast hopper car A railroad hopper ballast discharge door assembly includes pliant side panels along a discharge gate opening. The pliant side panels are strong enough to retain the ballast within the hopper when the door is closed, yet are flexible enough to yield when b... | 05/23/1995 |
| 5326156 | Trailer construction An improved tractor-trailer assembly utilizes a trailer bottom wall having a drop center portion which is located rearwardly of the longitudinal midpoint of the trailer. The bottom wall of the cargo container is attached to and suspended from the upper ed... | 07/05/1994 |
| 5224761 | Bottom dump front door latch A bottom dump trailer having a trailer body for accepting and hauling load material having a front and rear walls, opposing and parallel side walls and a floor formed by front and rear doors is disclosed. The sides of the front and rear doors are slidably... | 07/06/1993 |
| 5021156 | Dump truck for receiving draining and disposing of dredged material The truck has an hydraulic pump for receiving dredged mixture of solids and water from a pumping site and delivering the mixture to the truck body. A fixed partition wall is mounted transversely in the body and divides the body into first and second open ... | 06/04/1991 |
| 5000358 | Low profile pneumatic outlet A low profile pneumatic outlet for a covered hopper railway car is disclosed which allows the bottom slope sheets of the hopper car to be moved downwardly closer to the rail thereby increasing the cubic capacity of the car while maintaining the car within... | 03/19/1991 |
| 4975205 | Apparatus and method for receiving, draining and disposing of dredged material A dump truck has a tiltable dump body with a tailgate at its rear end. A partition or weir mounted in the dump body and of lesser height than the walls of the dump body divides the dump body into front and rear compartments. A siphon is connected between ... | 12/04/1990 |
| 4883321 | Combination rear dump and bottom dump semi trailer The present invention relates to a new type of trailer for trucks used in the construction industry. The invention discloses a combination bottom dump and end dump trailer in a single unit. The trailer generally comprises a cargo area, a bottom dump hatch... | 11/28/1989 |
| 4818024 | Tandem hopper trailer An on-road hopper trailer has a hopper bin with front and rear walls, a rear ladder frame mounted on at least one axle extending forward to the rear wall of the bin, and a base frame mounted on the ladder frame. The base frame extends about the hopper bin... | 04/04/1989 |
| 4735457 | Freight vehicle with a convertible cargo space Improvements in a freight vehicle having a cargo space convertible from that suitable for handling piece goods to that suitable for bulk material. A conventional cargo space for piece goods has openings for filling and discharging bulk material. A double-... | 04/05/1988 |
| 4733451 | Method for constructing a combination rear dump and bottom dump trailer The present invention relates to a new type of trailer for trucks used in the construction industry. The invention discloses a combination bottom dump and tail dump trailer in a single unit and a method to build such a unit. The trailer generally comprise... | 03/29/1988 |
| 4617868 | Railroad hopper car with self-contained discharge system A railroad hopper car particularly adapted for shipment of dry, granular-like commodities may have its inner space divided into compartments which in turn are formed with chambers. Each chamber bottom includes a discharge system comprising a pair of align... | 10/21/1986 |
| 4534596 | Freight vehicle with a convertible cargo space A freight vehicle has a cargo space convertible from that suitable for handling piece goods to that suitable for dry bulk granular material. A conventional cargo space for piece goods has openings in the roof and floor for filling and discharging bulk mat... | 08/13/1985 |
| 4475672 | Hopper discharge device A hopper discharge device including a hopper with discharge opening, a pair of door support guides, a door slidingly engaging the guides for opening and closing the hopper discharge opening and a rotatable shaft with one or more sprocket wheels adapted to... | 10/09/1984 |
| 4365841 | Gravity dump wagon This invention relates to bottom opening utility wagons in general and more specifically to a gravity dump wagon having a unique hydraulically actuated bottom opening arrangement wherein the closure members translate away from the hopper body in the horiz... | 12/28/1982 |
| 4362457 | Cotton loader and packer A vehicle for carrying cotton from a mechanical picker to a cotton trailer, and for tamping the cotton down while in the bed of the trailer, is disclosed. The vehicle is constructed with a U-shaped base and has one open end for straddling the cotton trail... | 12/07/1982 |
| 4348047 | Wall construction for a belly dump trailer A double wall and method of assembly of the double wall for a cargo hopper, such as that of a belly dump trailer, having a unitary inner member and horizontal reinforcing members formed of the same material as the inner member and welded sequentially to t... | 09/07/1982 |
| 4346905 | Tank trailer A tank trailer for transporting dry and liquid flowable materials comprising a horizontally disposed substantially cylindrical tank having front and rear transverse end walls. On each end wall is a hopper structure inclining upwardly and outwardly from th... | 08/31/1982 |
| 4324434 | Grain carrying vehicle An improved grain carrying vehicle (10) is the subject of this application. The vehicle (10) includes a catwalk (54) formed between an oblique panel portion (42) of the vehicle carriage (34) and a generally horizontal fender panel (52). Additionally, the ... | 04/13/1982 |
