AMSTED INDUSTRIES INCORPORATED

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
B61G COUPLINGS SPECIALLY ADAPTED FOR RAILWAY VEHICLES; DRAUGHT OR BUFFING APPLIANCES SPECIALLY ADAPTED FOR RAILWAY VEHICLES612
 
  
 
B62D MOTOR VEHICLES; TRAILERS 487
 
  
 
B61F RAIL VEHICLE SUSPENSIONS, e.g. UNDERFRAMES, BOGIES, ARRANGEMENTS OF WHEEL AXLES; RAIL VEHICLES FOR USE ON TRACKS OF DIFFERENT WIDTH; PREVENTING DERAILING; WHEELS GUARDS; OBSTRUCTION REMOVERS OR THE LIKE 319
 
  
 
F16F SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION257
 
  
 
B05B SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES 163
 
  
 
B09C RECLAMATION OF CONTAMINATED SOIL 18
 
  
 
E04F FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS 126
 
  
 
F25D REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT COVERED BY ANY OTHER SUBCLASS 145

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
6210073 Multi-level fluid transfer apparatus, system and processNov 30, 98Apr 03, 01[B09C]
5663536 Sound attenuation assembly for air-cooling apparatusOct 10, 95Sep 02, 97[E04F]
5573126 Gravity wedge for a slackless railcar connector assemblyApr 10, 96Nov 12, 96[B61G, F16F]
5472223 Air operated fifth wheelNov 30, 93Dec 05, 95[B62D]
5454475 Lubrication means for slack-free railcar connectionsMar 22, 94Oct 03, 95[B61G]
5452665 Bolster friction shoe pocket with relieved outer wallApr 06, 94Sep 26, 95[B61F]
5312007 Slackless railway coupler with draft/buff gearDec 04, 92May 17, 94[B61G]
5305694 Sideframe with increased fatigue life having longer cross-sectional thickness transition zoneJun 17, 93Apr 26, 94[B61F]
5305899 Coupler follower with elastomeric wear pad for preventing metal to metal contact between the follower and the center sill side wallsJun 25, 93Apr 26, 94[B61G]
5224428 Strengthened structure for a steering arm assembly having a compound radial fillet at junctureOct 31, 91Jul 06, 93[B61F]

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
2009/0222,217 Method of calculating environment risk of a chemical in soilAbandonedFeb 29, 08Sep 03, 09[G06F]
2007/0233,400 Method of calculating environmental risk of a chemicalAbandonedMar 29, 06Oct 04, 07[G06F]
2005/0092,560 Brake drum balancingAbandonedOct 31, 03May 05, 05[F16D]
2002/0165,057 High strength roller chainAbandonedMay 04, 01Nov 07, 02[F16G]
6302818 Tapered bushing for a roller chainExpiredJul 21, 99Oct 16, 01[F16G]
6276283 Railway truck wear plateExpiredApr 07, 99Aug 21, 01[B61F]
6272949 Air operated fifth wheel uncoupling apparatusExpiredDec 23, 98Aug 14, 01[F16H]
6227122 Side frame-bolster interface for railcar truck assemblyExpiredSep 16, 99May 08, 01[B61F]
6224124 Parts transfer and control circuit systemExpiredOct 02, 98May 01, 01[B66C]
6199889 Reduced weight fifth wheel assemblyExpiredOct 06, 98Mar 13, 01[B62D]
6183232 Raw material delivery system for compacting pressExpiredJan 11, 99Feb 06, 01[B29C]
6173655 Side frame-bolster interface for railcar truck assemblyExpiredAug 20, 98Jan 16, 01[B61F]
6141861 Apparatus and method for control of roller chain assemblyExpiredSep 08, 97Nov 07, 00[B23P]
5941549 Fifth wheel kingpin deflector and catcherExpiredMar 14, 97Aug 24, 99[B62D]
5921186 Bolster land arrangement for a railcar truckExpiredMay 02, 97Jul 13, 99[B61F]
5865458 Reduced weight fifth wheel assemblyExpiredDec 20, 96Feb 02, 99[B62D]
5809899 Draft sill and wheel truck connectionExpiredJun 28, 96Sep 22, 98[B61F]
5794538 Railcar truck bearing adapter constructionExpiredApr 01, 97Aug 18, 98[B61F]
5749301 Multi-rate vertical load support for an outboard bearing railway truckExpiredSep 13, 96May 12, 98[B61F]
5746136 Dynamically stable, lightweight railcar support systemExpiredSep 13, 96May 05, 98[B61F]

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