HEGENSCHEIDT-MFD GMBH & CO. KG

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
B24B MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING 660
 
  
 
B21H MAKING PARTICULAR METAL OBJECTS BY ROLLING, e.g. SCREWS, WHEELS, RINGS, BARRELS, BALLS 44
 
  
 
B21D WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING 353
 
  
 
B21K MAKING FORGED OR PRESSED PRODUCTS, e.g. HORSE-SHOES, RIVETS, BOLTS, WHEELS 320
 
  
 
B23B TURNING; BORING 349
 
  
 
B23P OTHER WORKING OF METAL; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS 353
 
  
 
B21B ROLLING OF METAL 230
 
  
 
G01B MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS297
 
  
 
B23C MILLING 132
 
  
 
B61K OTHER AUXILIARY EQUIPMENT FOR RAILWAYS 112

Top Patents (by citation)

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Recent Publications

Publication # Title Filing Date Pub Date Intl Class
2017/0282,327 ROLLING UNIT FOR DEEP-ROLLING THE RUNNING SURFACES OF RAIL VEHICLESSep 15, 15Oct 05, 17[B24B]

Recent Patents

Patent # Title Filing Date Issue Date Intl Class
9707984 Method and device for inspecting railway wheelsJul 02, 13Jul 18, 17[B61K, G01M, G01N]
9694471 Burnishing headJul 20, 12Jul 04, 17[B24B, F16C]
9676017 Method for the roller-straightening of crankshaftsDec 22, 11Jun 13, 17[F16C, B21H, B21D]
9446449 Method for reprofiling wheelsets on underfloor wheel lathesNov 26, 10Sep 20, 16[B23B]
9205472 Machine for deep-rolling axlesJul 01, 10Dec 08, 15[B24B, B23P, B21H, B21B]
9205516 Hydraulic wheel set pressAug 14, 08Dec 08, 15[B23P, F15B]
9138809 Under-floor wheelset latheMay 20, 11Sep 22, 15[B23B]
8677581 Deep rolling machine for crankshaftsSep 15, 06Mar 25, 14[B21K, B21D]
8567025 Deep rolling roller of a deep rolling machine arranged detachably on a housingMar 24, 10Oct 29, 13[B24B, B21K]
8245374 Roller burnishing machine for crankshaftsApr 03, 06Aug 21, 12[B21K, B21D]

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
2015/0074,998 METHOD FOR IMPROVING THE QUALITY OF THE SURFACES OF CRANKSHAFTSAbandonedSep 14, 12Mar 19, 15[B24B, B23P, B23K, F16C]
2012/0137,480 DEVICE FOR DEEP-ROLLING TRANSITION RADII ON CRANKSHAFTSAbandonedNov 21, 08Jun 07, 12[B24B]
2011/0092,349 DEEP ROLLING HEADAbandonedJun 03, 09Apr 21, 11[F16C]
7827684 Process for finish-machining crank shafts for motor car enginesExpiredAug 02, 03Nov 09, 10[B23P]
2009/0095,139 Mobile wheelset reprofiling deviceAbandonedFeb 16, 07Apr 16, 09[B23B]
7487657 Deep rolling head of a deep rolling tool for the deep rolling of crankshaftsExpiredJan 19, 07Feb 10, 09[B21D]
2008/0216,621 Underfloor Wheel Set Lathe for Machining Wheel Sets of Railway VehiclesAbandonedJan 07, 06Sep 11, 08[B23B]
2008/0209,969 Deep Rolling HeadAbandonedDec 04, 04Sep 04, 08[B21D]
2008/0202,296 Tool for Machining Tire ProfilesAbandonedAug 25, 05Aug 28, 08[B23B]
2008/0000,334 Device for Supporting Bogies on Wheel Set Machining UnitsAbandonedNov 03, 04Jan 03, 08[B23B]
7257974 Deep-rolling roller head of a deep-rolling toolExpiredNov 04, 05Aug 21, 07[B21D]
7168278 Deep rolling roller head of a deep rolling toolExpiredFeb 15, 03Jan 30, 07[B21D]
7100412 Hard-rolling roller head pertaining to a hard-rolling toolExpiredApr 25, 03Sep 05, 06[B21D]
7100413 Deep-rolling roller headExpiredMay 02, 03Sep 05, 06[B21D]
2006/0168,814 Method and machine tool for machining a tire of a train wheel setAbandonedAug 22, 03Aug 03, 06[B21D]
7021100 Deep-rolling apparatus of a deep rolling machine crankshaftsExpiredJan 05, 04Apr 04, 06[B21O]
6990842 Method for deep-rolling transitions between the bearing journals and the flanges of crankshaftsExpiredJan 26, 04Jan 31, 06[B21D]
2005/0188,735 Divided deep-rolling roller headAbandonedMar 18, 04Sep 01, 05[B21H]
2005/0066,699 Roll-hardening device in a roll-hardening machine for crankshaftsAbandonedNov 15, 04Mar 31, 05[B21D]
6666061 Apparatus for deep rolling of recesses and radii of crankshaft journal bearingsExpiredMay 28, 02Dec 23, 03[B21D]

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