MagneTek Controls

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
G01B MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS495
 
  
 
G01F MEASURING VOLUME, VOLUME FLOW, MASS FLOW, OR LIQUID LEVEL; METERING BY VOLUME 356
 
  
 
G01R MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES 1158
 
  
 
G01V GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS 179
 
  
 
G05B CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS 1100
 
  
 
G08B SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS 193

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
5412316 Magnetostrictive linear position detector with axial coil torsional strain transducerOct 15, 92May 02, 95[G01B, G01F]
5406200 Method and apparatus for temperature compensation of magnetostrictive position detectionFeb 18, 93Apr 11, 95[G01B, G01R, G01F]
5245178 Apparatus for automatically testing safety light curtain and measuring machine stoppage timeAug 21, 92Sep 14, 93[G08B, G01V]
5227965 Fast programmable limit switchMar 06, 91Jul 13, 93[G05B]
5212444 Detection of damped sine waves in a magnestostrictive displacement transducer using pretrigger and detection thresholds of opposite polarityJul 31, 91May 18, 93[G01B, G01F]
5196791 Magnetostrictive linear position detector and a dual pole position magnet thereforSep 27, 91Mar 23, 93[G01B]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
5050430 Magnetostrictive linear position detector with temperature sensorsExpiredJun 19, 90Sep 24, 91[G01K, G01B, G01F]
5017867 Magnetostrictive linear position detector with reflection terminationExpiredDec 08, 89May 21, 91[G01B, G01F]
4995019 Time period measuring apparatus with adaptive averagingExpiredJun 06, 90Feb 19, 91[G04F]
4943773 Magnetostrictive linear displacement transducer having preselected zero crossing detectorExpiredApr 03, 89Jul 24, 90[G01B, G01F]
4858424 Variable radius cable carrierExpiredAug 15, 88Aug 22, 89[F16G]
4839590 Piezoelectric actuator for magnetostrictive linear displacement measuring deviceExpiredSep 24, 87Jun 13, 89[G01B, G01F]

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