Did You Know...
...that to encourage use of his new invention, the shopping cart, market owner Sylvan Goldman hired fake shoppers to push the carts around his store in Oklahoma City? Seems his customers were reluctant to give up their hand-carried baskets.
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| Number | Title | Issue Date |
| 7908975 | Hollow railroad car structure An hollow railroad car may be a have a lading containment structure that is a pressure vessel. The car may be a covered hopper car having one or more hopper discharge sections. Each hopper discharge section may include a transition from a substantially rectangular u... | 03/22/2011 |
| 7861659 | Lightweight hopper car with through center sill A lightweight hopper car that includes one or more reinforcing members at specified locations, so that the hopper car has both a carrying capacity and a structural strength comparable to those of existing, heavier hopper cars. Specifically, the present application d... | 01/04/2011 |
| 7261353 | Dividers for reduction of aerodynamic drag of vehicles with open cavities A drag-reduction concept for vehicles with open cavities includes dividing a cavity into smaller adjacent cavities through installation of one or more vertical dividers. The dividers may extend the full depth of the cavity or only partial depth. In either applicatio... | 08/28/2007 |
| 7252309 | Containerised handling of bulk materials and apparatus therefor A freight container (10) has a base (20) or a portion thereof that can be opened to discharge its contents. This container (10) has a top which can be opened in similar manner as the base. Another container having at least one compartment, each ... | 08/07/2007 |
| 7252039 | Ballast discharge car A ballast discharge car having at least one non-pivoting transverse conveyor disposed beneath a hopper for distributing the ballast between the rails, near the outside of the rails, and well beyond the outside of the rails in a stockpiling application. The speed, di... | 08/07/2007 |
| 7223086 | Golf ball manufacturing apparatus A golf ball manufacturing apparatus comprises a mold including a cavity for forming a golf ball, an injection molding machine for supplying a molten resin to the mold, a supply portion for supplying a resin pellet to the injection molding machine, and a crushing mac... | 05/29/2007 |
| 7124693 | Railway car outlet gate assembly An outlet gate assembly has upper and lower gate assemblies with independent drive mechanisms to open and close the gates. The drive mechanisms may be rack and pinion drives. The racks for the lower gate do not enter the gate cavity. The outlet gate assembly can be ... | 10/24/2006 |
| 6955127 | Manual railroad hopper car door actuating mechanism An actuating system for manually operating the doors of a railroad hopper car. An operating shaft having a handle is rigidly coupled to an actuating lever. A door opening lever, which is rotatably coupled to the actuating lever, is rotatably coupled to the door for ... | 10/18/2005 |
| 6907828 | Model train cars A model train freight car and a method of manufacturing the same. An aluminum model freight train car body is extruded through a die. At least one accessory is attached to the freight car body. The model train freight car weight ranges from about 1.0 lbs. to about 1... | 06/21/2005 |
| 6865992 | Increased capacity railway car A railway car includes a first end, a second end, and a first side disposed longitudinally between the first end and the second end. The first side includes a concave portion in a generally horizontal plane of the railway car. The concave portion provides a railway ... | 03/15/2005 |
| 6502518 | Converted multiple hopper rail car and method for making same A dual hopper rail car is converted from a three-hopper rail car. The converted rail car includes a pair of hoppers with each hopper including a discharge opening for discharging contents of the hopper. A center sill, pair of top chords, a pair of side si... | 01/07/2003 |
| 6334397 | Side sheets for a hopper and bulk container car A side sheet assembly for a rail car having a pair of horizontally extending upper and lower side sheets form with a plurality of longitudinally extending strengthening ribs. The upper and lower side sheets are affixed to each other at a horizontal seam t... | 01/01/2002 |
| 6273647 | Pressure discharge railway hopper car A pressure discharge railway hopper car includes a car body having a plurality of hoppers arranged in adjacent relation longitudinally, each opening at the bottom end to an aerator tub assembly. Each aerator tub assembly has two aerator units, one on each... | 08/14/2001 |
| 6237505 | Large capacity car body for pressure discharge railway hopper cars A large capacity car body for a pressure discharge railway hopper car has a plurality of end slope plates assemblies, each having a slope sheet, and a plurality of intermediate slope sheet units, each of inverted "V" shape. The intermediate slope sheet un... | 05/29/2001 |
| 6213028 | Increased capacity railway car A railway car includes a first end, a second end, and a first side disposed longitudinally between the first end and the second end. The first side includes a concave portion in a generally horizontal plane of the railway car. The concave portion provides... | 04/10/2001 |
| 6205931 | Aerator pad for fluidizing particulate materials An aerator pad for a railroad hopper car has a fabric body member that overlies an aeration assembly slope sheet. The body member has a perimeter portion with indentations formed in the edges thereof. A gasket is molded to the perimeter of the body member... | 03/27/2001 |
| 6044771 | End structure assembly for hopper car A transition section for a railway hopper car carries structural loads from an endmost hopper of the hopper car into the hopper car end structure, whence the loads are transferred to and from other cars via the coupler, and into the rail car truck. The si... | 04/04/2000 |
| 5934200 | Lightweight hopper car A lightweight hopper-type rail car provides for a smooth exterior surface so as to minimize aerodynamic drag thereon when the car is in motion. The railcar includes a cross ridge arrangement which greatly increases the fabrication efficiency of the car as... | 08/10/1999 |
| 5794539 | Moisture barrier filter seal for hopper rail car hatches A moisture barrier seal for use on a hopper car hatch opening that does not need to be removed before vacuum unloading of the hopper car due to the use of a grained plastic such as vertically drawn or cast polyethylene which will rupture as soon as the se... | 08/18/1998 |
| 5443016 | Convertible hopper railcar design with internal bracing for adapting car to haul bladders The invention provides a railroad car adapted to transport bulk commodities such as coal, mineral ores, or the like yet efficiently and safely haul bladders filled with flowable commodities. The railcar includes a rugged bracing configuration which enable... | 08/22/1995 |
| 5433559 | Pressurized hopper car A pneumatic discharge system is provided for a pressurized hopper car to allow the hopper car to carry an enlarged material discharge line. A discharge assembly is used to connect the outlet from each hopper section of the railway car with the discharge l... | 07/18/1995 |
| 5263421 | Coal fly-ash railway hopper car with 70 degree minimum slope and end sheet angle and longitudinal dual purpose loading hatch A dual-purpose railway hopper car is constructed so that it is capable of holding, handling and hauling both coal and fly ash on different trips by virtue of having a plurality of quick opening hopper doors which are sealed to prevent leakage of fly ash w... | 11/23/1993 |
| 5259322 | Five unit articulated covered hopper car An articulated multi-unit railway hopper car including a pair of end units having couplers mounted on their outboard ends. A plurality of intermediate units are interconnected between said end units. A plurality of articulated connector assemblies interco... | 11/09/1993 |
| 5209166 | Aerodynamic self cleaning hopper car A curved sided aerodynamic self clearing hopper car uses the curved sides, end skirts and top chord and side sills for improved strength and reduced aerodynamic drag.... | 05/11/1993 |
| 5168816 | Sludge car A sludge car for hauling sewage lagoon sludge comprising a rail undercar having a car body mounted thereon which includes opposite ends and sides. The car body is provided with a plurality of individual hoppers each of which have sludge discharge ports at... | 12/08/1992 |
| 5031546 | Hopper car discharge system A hopper discharge outlet unit for railroad hopper cars useful for breaking up large chunks of agglomerated material and permits continuous off-loading of the railroad hopper cars including a delumper mounted inside of a pneumatic hopper discharge outlet ... | 07/16/1991 |
| 5013530 | Sparger system for discharge of bulk material from hopper cars A sparger system for removing sodium chlorate crystal and other particulate material in slurry or solution form from a tank car comprises a plurality of spray nozzles from which water is expelled as a flat spray initially to dissolve sodium chlorate so as... | 05/07/1991 |
| 4966081 | Articulated multi-unit hopper railway car An articulated multi-unit railway hopper car including a pair of end units having couplers mounted on their outboard ends. A plurality of intermediate units are interconnected between said end units. A plurality of articulated connector assemblies interco... | 10/30/1990 |
| 4922833 | End structure for railway car An end structure for a railway car, and more particularly a covered hopper railway car, is disclosed which has side sill extensions extending diagonally inwardly from the ends of the side sills to the center stub sill for transmitting substantially all of... | 05/08/1990 |
| 4909154 | Aerodynamic end closures for railway hopper cars Apparatus for enclosing open end portions of railway hopper cars in order to reduce the aerodynamic drag. Each corner area of each end is provided with a shroud which includes a side plate and an end plate. The side plate covers the open side area at the ... | 03/20/1990 |
| 4898101 | Vehicle hopper body with internal reinforcing members A hopper vehicle body having an elongated shell internally reinforced by spaced apart lateral reinforcing members in the general shape of a horseshoe and which have a hat-shaped cross section.... | 02/06/1990 |
| 4893568 | Railway car conversion to gondola car A hopper car is converted to a gondola-type car by replacing the hoppers and their dump doors with a light metal sheet floor. The floor sheets form a series of box-like compartments. The compartments are formed by crossbearer partitions extending between ... | 01/16/1990 |
| 4884511 | Aluminum hopper car with cast collars interconnecting intersecting center sill hood with ridge hood and sloped end walls An aluminum hopper car having a center sill hood which uses aluminum collar castings to connect cross ridge hoods which intersect a center sill hood, and to connect the center sill hood with intersecting sloped car end walls.... | 12/05/1989 |
| 4875417 | End structure for railway car An end structure for a railway car, and more particularly a covered hopper railway car, is disclosed which has side sill extensions extending diagonally inwardly from the ends of the side sills to the center stub sill for transmitting substantially all of... | 10/24/1989 |
| 4771702 | Covered hopper car A hopper car comprises two substantially similar units which are relatively short and have low roof lines. A pair of trucks is connected to opposite ends of the car. A third truck is connected between the two units. A coupler between the units and the thi... | 09/20/1988 |
| 4696237 | Multiple hopper rail car with offset vertical weld from conversion A covered, dual hopper car made by converting a rail car having three or more covered hoppers suitable for carrying a large volume of a relatively low density commodity, to a car having a fewer number of hoppers suitable for carrying a smaller volume of a... | 09/29/1987 |
| 4696238 | End structure for railway car An end structure for a center stub sill railway car is disclosed in which diagonal side sill extensions incline inwardly from the side sills to the center stub sill side for transmitting the longitudinal train loads between the stub sill and the side sill... | 09/29/1987 |
| 4677917 | High volume covered hopper car with loading from below and automatic unloading A high volume covered railway hopper car is disclosed which has vertical end walls so as to fully utilize the space over the trucks of the car for lading volume. An automatic pneumatic unloading system is provided so as to unload a pulverant lading from t... | 07/07/1987 |
| 4644871 | Articulated hopper railcar An articulated hopper railcar is provided which when fully loaded has a low combined center of gravity and has an improved track load distribution when compared with conventional railcars of similar capacity. The car has good dynamic stability making it i... | 02/24/1987 |
| 4608931 | Filament wound railway hopper car A railway hopper car (200) includes a filament wound fiberglass car body having side walls (202, 204) integral with a roof (208), preferably also formed of a filament wound fiberglass. The fiberglass side walls are connected to longitudinally extending si... | 09/02/1986 |
