Did You Know...
...Chester Carlson was a patent agent who tired of having to make multiple copies of patent applications using the only duplication method available at the time: carbon paper. In 1959 he came up with a new copying system and took it to IBM for evaluation. The "experts" at IBM determined potential sales to be only 5,000 units because people wouldn't want to use a bulky machine when they had carbon paper. Carlson's invention was the xerography process, the company founded on the system is Xerox.
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| Number | Title | Issue Date |
| 6956307 | Soft magnetic composite powder metal cores A stator core assembly for use in an electrical machine is provided. The stator core assembly includes a plurality of core components. Each core component forms an arcuate section of the stator core assembly. Each core component is comprised of at least two core com... | 10/18/2005 |
| 6681943 | Railcar draft gear assembly and system A draft gear assembly is disclosed alone and in combination with a draft sill and a coupler. The draft sill has front and rear stops defining a draft gear pocket. The draft gear assembly has a yoke, a coupler follower, a rear follower, a front resilient m... | 01/27/2004 |
| 6662853 | Method of making bolsters and sideframes for railway car trucks The number of cores used in casting bolsters and sideframes is reduced. End cores and a center core are placed in a mold with cope and drag portions. Each core includes integrally-formed portions for defining portions of the interior surfaces of the bolst... | 12/16/2003 |
| 6629595 | Conveyor system A conveyor system includes a first conveyor, a second conveyor and a transfer mechanism interposed between the first and second conveyors. The first conveyor has an input end, an output end, and a pair of laterally spaced belts rotating between its input ... | 10/07/2003 |
| 6622776 | Method of making sideframes for railway car trucks The number of cores used in casting sideframes is reduced. A pair of end cores and a center core are placed in a mold with cope and drag portions. Each core includes integrally-formed portions for defining portions of the interior surfaces of the sidefram... | 09/23/2003 |
| 6397923 | Pipe core clean out system A system for removing waste material from the bell end of a cast iron pipe is disclosed. The system has both a cleaning assembly and an exhaust system. The cleaning assembly has a plurality of wire brushes mounted on a shaft. The shaft is mounted on a car... | 06/04/2002 |
| 6371033 | High capacity integrated railway car truck A three piece stabilized railway car truck is provided with dimensions corresponding generally with an AAR nominal 100 ton size truck and a load carrying capability satisfactory for use with railway cars having a 315,000 pound gross weight on rail rating.... | 04/16/2002 |
| 6360906 | Slackless railway coupler with buff/draft gear A pocket-casting is provided for a railcar slackless coupler having a draft gear subassembly for preloading the coupler assembly in the buff and draft directions, which pocket-casting and cooperating positive stops in a center-sill of a railcar limit the ... | 03/26/2002 |
| 6324995 | Railway car center filler plate Center filler plates for mounting on draft sills of railway car underframes are disclosed. The center filler plates have four pockets surrounding a hub. The pockets are shallower than in the prior art, and the walls defining the pockets meet in radii havi... | 12/04/2001 |
| 6302818 | Tapered bushing for a roller chain A roller-chain bushing with a stress-relief opening centrally located along the seam of a rolled or roll-formed bushing has a tapered or relief segment at each bushing end to permit compressive fitting of the bushing ends into a link-plate hole thereby mi... | 10/16/2001 |
| 6301285 | Arc furnace fume collection method The present invention provides a system and method for collecting fumes from an arc furnace of the type typically used in metal foundries. The system provides an electrode hood with extended sides for improved collection of fumes from the vicinity of the ... | 10/09/2001 |
| 6273042 | Rocker assemblies for control of engine valves and method of assembling such rocker assemblies Improved rocker assemblies for use in opening a valve in an engine are disclosed, along with an improved method of assembling the rocker assemblies. The rocker assemblies have pivotable rocker arms with rocker balls and sockets as in the prior art. A reta... | 08/14/2001 |
| 6227122 | Side frame-bolster interface for railcar truck assembly A three-piece railcar truck assembly is disclosed. The truck assembly has two side frames and a bolster extending between the side frames. Each side frame has spaced columns defining an opening which receives one end of the bolster. Each side frame also h... | 05/08/2001 |
| 6224124 | Parts transfer and control circuit system An assembly for transfer of roller chain link-plates between operations of a high-rate manufacturing process includes rapid, repeatable and reliable transfer apparatus; tooling for grasping the link-plates without disturbing the advancing link-plates from... | 05/01/2001 |
| 6199889 | Reduced weight fifth wheel assembly A reduced weight fifth wheel generally mountable on a tractor for coupling between a tractor and a trailer, which fifth wheel has the approximately the same bearing surface area, a more continuous surface area by elimination of a lever-bar pin port in the... | 03/13/2001 |
| 6200525 | Hold-down system for compacting press A press for compacting raw material into compacted elements is disclosed. The press has a vertically movable platen and a feed shoe on the platen. The feed shoe is urged against the platen by a pair of force-transmitting devices and lever arms. The lever ... | 03/13/2001 |
| 6186075 | Side frame-bolster interface for railcar truck assembly A three-piece railcar truck assembly is disclosed. The truck assembly has two side frames and a bolster extending between the side frames. Each side frame has spaced columns defining an opening which receives one end of the bolster. Each side frame also h... | 02/13/2001 |
| 6149376 | Pipe moving method, apparatus and system A system, apparatus and method are disclosed for moving an elongate object such as a pipe between lowered and raised positions, preferably while rotating the object to maintain its shape. The system and method use two apparatuses, an upender and a downend... | 11/21/2000 |
| 6142219 | Closed circuit heat exchange system and method with reduced water consumption A system and methods of extracting heat are disclosed. The system may be arranged as a fluid cooler or as a fluid condenser. Three heat exchange sections are provided: a dry indirect contact heat exchange section; a second indirect contact heat exchange s... | 11/07/2000 |
| 6134786 | Method for improvement of involute and lead error in powder metal gears Gears, particularly spur gears, are produced by powder metal techniques with minimal lead line error and eccentricity, which gears are preformed from powder metal, sintered, hardened and thereafter have their involute surfaces regenerated by a hard hob wi... | 10/24/2000 |
| 6089166 | Bolsters for railway trucks An improvement in cast metal bolsters for railway trucks is disclosed. The bolster has a top wall, a bottom wall and sidewalls. All of the walls have interior and exterior surfaces. Two transverse ribs extend between the top wall and bottom wall and two s... | 07/18/2000 |
| 5964272 | Wheel cooling tunnel The present invention provides a method of producing cast steel railway wheels. After pouring and removal from the mold, the steel wheel is processed in various steps including processing in an annealing and a tempering furnace. The wheel is then passed t... | 10/12/1999 |
| 5941549 | Fifth wheel kingpin deflector and catcher A fifth wheel for trucks is disclosed. Such fifth wheels usually are mounted on truck tractors and receive kingpins that are mounted on truck trailers. An operating rod is provided to manually disengage the kingpin locking mechanism. In one embodiment the... | 08/24/1999 |
| 5931101 | Light weight draft sill The present invention provides a lightweight draft sill end casting for use with railroad cars. Weight reductions are achieved and adequate strength is maintained by using a set of front ribs and back ribs, with angled top and bottom ribs. The back rib se... | 08/03/1999 |
| 5905752 | ARC furnace fume collection system and method The present invention provides a system and method for collecting fumes from an arc furnace of the type typically used in metal foundries. The system provides an electrode hood with extended sides for improved collection of fumes from the vicinity of the ... | 05/18/1999 |
| 5891266 | Method and system for cutting hub bores in railroad wheels A method and system for cutting hub bores in metal railroad wheels is disclosed. The system includes a lead and second torch for cutting the hub bores. In the method, the lead torch is moved to an initial position above the wheel. The lead torch is energi... | 04/06/1999 |
| 5864065 | Test apparatus for a railway wheel A railroad wheel test apparatus for sensing and mapping the subsurface of a railroad wheel tread face has a housing assembly with a holding device, a wheel transfer arrangement, a transducer assembly, a positioning and moving table for the transducer and ... | 01/26/1999 |
| 5858415 | Raw material delivery system for compacting press A raw material delivery system is disclosed. It is used with a press of the type used to compact raw material in a die. The press has a horizontal table with an opening in which the die is held. A feed shoe is movable across the table between an extended ... | 01/12/1999 |
| 5833086 | Alliance coupler lock lifter securing arm A latch lock mechanism for a railcar rotary-dump coupler is provided for an Alliance coupler having a more narrow inner housing cavity for the coupling mechanism than the standard coupler housing chamber, and the latch is operable to extend from a locklif... | 11/10/1998 |
| 5809898 | Ring seat removal system for a railcar articulate connector An improved female connecting member for an articulated connector has a ring seat for a ring within an annular groove for contacting the male member of the connector, which female member has an improved undersurface passage for a probe to provide greater ... | 09/22/1998 |
| 5794538 | Railcar truck bearing adapter construction A railcar truck, bearing-adapter assembly for an axle end has vertically extending arms to securely capture and maintain a roller bearing and axle end assembly at about an as-assembled reference position within the adapter assembly and sideframe pedestal ... | 08/18/1998 |
| 5791258 | Railway truck with elastometric suspension A railway freight car truck is provided with an elastomeric suspension device between the bolster end and the sideframe bottom support. The elastomeric device is usually of a toroidal shape, and usually has a centrally located vertically extending opening... | 08/11/1998 |
| 5752564 | Railway truck castings and method and cores for making castings Improvements in cast metal sideframes and bolsters for railway trucks are disclosed, along with improvements in the processes of casting such products and the cores used in the casting process. In one aspect, the cores are consolidated to provide two one-... | 05/19/1998 |
| 5746136 | Dynamically stable, lightweight railcar support system A freight railcar undercarriage constant-contact sidebearing arrangement provides a load force transfer mechanism with a more direct or less redundant force transfer path between the railcar body with its lading and the sideframe and wheels of a truck ass... | 05/05/1998 |
| 5746137 | Railcar truck bearing adapter construction An integrally cast bearing adapter arrangement is provided in the pedestal of a railcar truck side frame, which side frame is cast with a pedestal jaw having a roof, and vertical walls of a first and second leg which roof and walls operate as a bearing ad... | 05/05/1998 |
| 5722327 | Device for improving warp stiffness of a railcar truck A sideframe pedestal jaw accommodates a bearing adapter which locks the adapter to the sideframe, thereby preventing it from all forms of movement within the pedestal jaw opening. Locking the bearing adapter forces the truck axles to remain at a right ang... | 03/03/1998 |
| 5663536 | Sound attenuation assembly for air-cooling apparatus A sound attenuation assembly for In a forced-draft, liquid-to-air cooling apparatus, a sound attenuation assembly having at least two rows of elongate, generally cylindrical members arranged across the air inlet of the assembly to provide a blockage to th... | 09/02/1997 |
| 5585141 | Method for lining pipe with calcium alumina cement Cast iron pipe and other elongated hollow articles are lined with a cementitious mortar for certain applications, such as the transmission of potable water or sewage. To improve the resistance to attack from acids and to provide a crack and void spot free... | 12/17/1996 |
| 5572931 | Railcar truck bearing adapter construction An integrally cast bearing adapter arrangement is provided in the pedestal of a railcar truck side frame, which side frame is cast with a pedestal jaw having a roof, and vertical walls of a first and second leg which roof and walls operate as a bearing ad... | 11/12/1996 |
| 5573126 | Gravity wedge for a slackless railcar connector assembly When slack-free railcar connector assemblies are placed under very high tensile loading, the connector assembly components will stretch and allow a typical "rigid" gravity wedge to descend into a fully seated position between the components and lock-in th... | 11/12/1996 |
