Graham-White Manufacturing Company

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
B01D SEPARATION 3131
 
  
 
B60L ELECTRIC EQUIPMENT OR PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES, IN GENERAL 373
 
  
 
F16H GEARING298
 
  
 
F16K VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING271
 
  
 
B61H BRAKES OR OTHER RETARDING APPARATUS PECULIAR TO RAIL VEHICLES; ARRANGEMENTS OR DIS-POSITIONS OF BRAKES OR OTHER RETARDING APPARATUS IN RAIL VEHICLES 115
 
  
 
F16B DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING 148
 
  
 
F16C SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OF CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS 169
 
  
 
F16T STEAM TRAPS OR LIKE APPARATUS FOR DRAINING-OFF LIQUIDS FROM ENCLOSURES PREDOMINANTLY CONTAINING GASES OR VAPOURS, STEAM TRAPS OR LIKE APPARATUS FOR DRAINING-OFF LIQUIDS FROM ENCLOSURES PREDOMINANTLY CONTAINING GASES OR VAPOURS17
 
  
 
F26B DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM 129
 
  
 
G01L MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE 155

Top Patents (by citation)

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Recent Publications

Publication # Title Filing Date Pub Date Intl Class
2017/0097,036 TELESCOPING ASSEMBLYOct 02, 15Apr 06, 17[F16B, F16C]
2012/0090,689 SYSTEM AND METHOD FOR OPERATING A DRAIN VALVEOct 18, 10Apr 19, 12[F16K]

Recent Patents

Patent # Title Filing Date Issue Date Intl Class
8899258 Drain valve and method for operating a drain valveSep 16, 11Dec 02, 14[F16K, F16T]
8894752 Air dryerFeb 27, 13Nov 25, 14[B01D]
8707775 System and method for testing a rail car brake systemAug 29, 11Apr 29, 14[G01L]
7607521 Apparatus and method for operating a take-up mechanism in a locomotive braking systemMar 24, 08Oct 27, 09[B60L]
7552660 Torque transfer mechanismJul 25, 08Jun 30, 09[F16H]
7409884 Torque transfer mechanismDec 12, 05Aug 12, 08[F16H]
7347306 Apparatus and method for operating a take-up mechanism in a locomotive braking systemDec 12, 05Mar 25, 08[B60L]
6719825 Air drying apparatus and methodMay 07, 02Apr 13, 04[B01D]
6581297 Drying apparatus and methodNov 17, 00Jun 24, 03[F26B]
6427811 Locomotive parking brakeNov 02, 00Aug 06, 02[B61H, B60L]

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
2016/0008,975 RAILROAD MANUALLY ADJUSTABLE SAFETY HANDBRAKE WHEEL UTILITY TOOL ASSEMBLYAbandonedJul 28, 12Jan 14, 16[B61H, B25J, B25G]
2013/0214,190 AIR VALVE AND METHOD FOR REFURBISHING AN AIR VALVEAbandonedFeb 22, 12Aug 22, 13[F16K, B23P]
2013/0068,570 SYSTEM AND METHOD FOR OPERATING A LOCOMOTIVE PARKING BRAKEAbandonedSep 16, 11Mar 21, 13[B61H]
7054777 Test device and method for testing a rail car brake systemExpiredSep 25, 04May 30, 06[G06F]
2002/0185,343 Apparatus for applying and releasing a loadAbandonedAug 02, 02Dec 12, 02[B60T]

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