MAGNETEK, INC.

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
H02P CONTROL OR REGULATION OF ELECTRIC MOTORS, GENERATORS, OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS 879
 
  
 
B66D CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS 417
 
  
 
H02K DYNAMO-ELECTRIC MACHINES 4103
 
  
 
B66C CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES 328
 
  
 
H02M APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF 399
 
  
 
G05D SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES 282
 
  
 
B60L ELECTRIC EQUIPMENT OR PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES, IN GENERAL 175
 
  
 
F04B POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS 161
 
  
 
F16L PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL169
 
  
 
G01C MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY 1104

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
9650231 Method and apparatus for controlling a bucket hoistMay 08, 13May 16, 17[H02K, B66D, B66C]
9182270 Method and apparatus for measuring a load in a material handling systemMay 14, 12Nov 10, 15[H02P, G01G]
9152152 System for control of mobile hydraulic equipmentJul 25, 13Oct 06, 15[H04Q, G05D, B66C]
9093937 Method and apparatus for determining position for a permanent magnet elevator motorJul 12, 13Jul 28, 15[H02P]
8686670 Method and apparatus for calibrating and testing brake holding torqueDec 20, 11Apr 01, 14[H02K]
8669724 Method and apparatus for load dependent speed control of a motorFeb 15, 11Mar 11, 14[H02P]
8554378 System for control of mobile hydraulic equipmentMar 08, 11Oct 08, 13[G05D]
8401814 Hoist system with an electronic programmable limit switchDec 15, 08Mar 19, 13[G01C]
8374011 Method and apparatus for boosting DC bus voltageAug 20, 10Feb 12, 13[H02M]
8198837 Device and method for measuring and controlling the speed and torque of a DC motorNov 23, 09Jun 12, 12[H02P]

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
2006/0120,001 Modular power supply assemblyAbandonedDec 03, 04Jun 08, 06[H02H]
2003/0202,304 Electronic circuit breakerAbandonedSep 18, 02Oct 30, 03[H02H]
2003/0036,297 Snap-in assembly for multiple high current conductive linesAbandonedJul 26, 02Feb 20, 03[H01R]
6244544 Method and apparatus for holding a capacitor without separable fastenersExpiredFeb 19, 99Jun 12, 01[G12B, H01G]
5141183 Apparatus and method for determining one or more operating characteristics of a rail-mounted vehicleExpiredDec 21, 90Aug 25, 92[B61L, G01B]
4914413 Transformer with layer-wound and random wound windingsExpiredAug 24, 89Apr 03, 90[H01F]
4877984 Electric motor and pump mounting bracket assembly and method of makingExpiredJul 19, 88Oct 31, 89[H02K]
4857788 Magnetic top wedgeExpiredMay 13, 88Aug 15, 89[H02K]
4827597 Method of forming magnetic top wedgeExpiredMay 13, 88May 09, 89[H02K]
4810175 Hermetic motor bearing assemblyExpiredAug 12, 87Mar 07, 89[F04B]
4766337 Open drip-proof machinery cooling system using totally enclosed type bearing bracketsExpiredMay 21, 87Aug 23, 88[H02K]
4761580 Magnetic top wedgeExpiredJun 17, 87Aug 02, 88[H02K]
4754407 Digital phase synchronizerExpiredJul 22, 86Jun 28, 88[G06F, G01R]
4739234 DC motor adaptive controller apparatusExpiredMar 26, 87Apr 19, 88[H02P]
4716348 DC motor adaptive controllerExpiredAug 26, 86Dec 29, 87[H02P]
4683392 Eddy current coupling having stepped rotor and coil supportExpiredApr 26, 82Jul 28, 87[H02K]
4598220 End play and lubricating system for fractional horsepower electric motorsExpiredAug 15, 84Jul 01, 86[H02K]
4559552 PIN semiconductor photoelectric conversion device with two oxide layersExpiredMay 24, 83Dec 17, 85[H01L]
4511347 Lubrication improvement for variable speed drivesExpiredOct 20, 83Apr 16, 85[F16H]
4505031 Method of assembling an electric motorExpiredSep 28, 82Mar 19, 85[H02K]

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