Kuhlman Electric Corporation

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
G01R MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES 2157
 
  
 
H01H ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES 193
 
  
 
H01R ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS 1132

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
7030602 Testing of current transformersJun 25, 04Apr 18, 06[G01R]
6680616 In-service testing of current transformersJan 28, 02Jan 20, 04[G01R]
5655292 Method for assembling a fuse holderJun 02, 95Aug 12, 97[H01R]
5576682 Fuse holder and method for assemblingMar 21, 94Nov 19, 96[H01H]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
2009/0184,703 VOLTAGE COMPENSATOR FOR DUAL-SECONDARY VOLTAGE TRANSFORMERSAbandonedJan 17, 08Jul 23, 09[H01F]
5488344 Toroidal transformer insulation preformsExpiredNov 03, 92Jan 30, 96[H01F]
5362006 Segment removal assembly for winding machineExpiredFeb 26, 93Nov 08, 94[B65H]
5353494 Method for assembling a distribution transformer with conforming layersExpiredNov 03, 92Oct 11, 94[H01F]
5319341 Core support blocking for toroidal transformersExpiredNov 03, 92Jun 07, 94[H01F]
5273246 Hanger bracket for distribution transformerExpiredSep 17, 92Dec 28, 93[F16L]
5248952 Transformer core and method for finishingExpiredJan 14, 92Sep 28, 93[H01F]
5016832 Method and apparatus for winding an amorphous magnetic toroidal transformer coreExpiredMay 30, 90May 21, 91[H02K, B65H]
4917318 Apparatus for fabricating a low voltage winding for a toroidal transformerExpiredMay 20, 88Apr 17, 90[H01F]
4901773 High voltage coil winding machineExpiredOct 24, 88Feb 20, 90[B21F]
4896839 Apparatus and method for winding a strip of material into an arcuate elongate passageExpiredApr 11, 88Jan 30, 90[B65H]
4884758 Self-loading wire winding assembly and methodExpiredDec 11, 87Dec 05, 89[H01F]
4875277 Formed metal core blocking methodExpiredOct 12, 88Oct 24, 89[H01F]
4833436 Formed metal core blockingExpiredSep 12, 86May 23, 89[H01F]
4779812 Toroidal electrical transformer and method of producing sameExpiredJan 15, 87Oct 25, 88[H01F]
4771957 Apparatus and method for fabricating a low voltage winding for a toroidal transformerExpiredMay 06, 87Sep 20, 88[B65H]
4765861 Apparatus and method for winding a toroidal magnetic core onto a bobbin for a toroidal transformerExpiredFeb 06, 85Aug 23, 88[H02K, H01F]
4761629 Injection moldable core insulation tubesExpiredSep 18, 86Aug 02, 88[H01F]
4741484 Apparatus and method for winding a magnetic core for toroidal transformerExpiredFeb 06, 87May 03, 88[H02K, B65H, H01F]
4699184 Apparatus and method for fabricating a high voltage winding for a toroidal transformerExpiredMay 15, 86Oct 13, 87[B21F]

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