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Class Information
Number: 310/236
Name: Electrical generator or motor structure > Dynamoelectric > Rotary > Current collectors > Rotary structure > Commutators > Cylindrical or drum
Description: Subject matter relating to cylindrical or drum type commutators.










Patents under this class:
1 2 3

Patent Number Title Of Patent Date Issued
8575878 Energy converter Nov. 5, 2013
8269394 Extrusion coated plane commutator Sep. 18, 2012
7990016 Slip-ring module for a rotor of an electric machine electric machine with a slip ring module and method for production of a slip ring module Aug. 2, 2011
7893593 Automotive engine starter and electric rotary machine designed to withstand vibrational impact Feb. 22, 2011
7877857 Manufacturing method of electric motor Feb. 1, 2011
7854055 Method for producing a commutator Dec. 21, 2010
7772739 Commutator, direct current motor, and manufacturing method of commutator Aug. 10, 2010
7716810 Method of manufacturing a commutator May. 18, 2010
7608956 Automotive engine starter and electric rotary machine designed to withstand vibrational impact Oct. 27, 2009
7602094 Rotary electric machine and related commutator Oct. 13, 2009
7462972 Commutator for an electric machine Dec. 9, 2008
7375452 Commutator for an electrical machine May. 20, 2008
RE39974 Management of contact spots between an electrical brush and substrate Jan. 1, 2008
7043822 Method of manufacturing commutator of rotary electric machine May. 16, 2006
7045927 Commutator May. 16, 2006
6958564 Armature with unitary coil and commutator Oct. 25, 2005
6927521 Commutator and electric rotary device having the same Aug. 9, 2005
6888285 Dynamo-electric machine and fan motor for vehicle May. 3, 2005
6844654 Drum commutator and method for producing the same Jan. 18, 2005
6836049 Commutator having short-circuiting parts, motor having such a commutator and method for manufacturing such a commutator Dec. 28, 2004
6753635 Management of contact spots between an electrical brush and substrate Jun. 22, 2004
6744169 Direct current motor having commutator segments firmly embedded in insulation bond Jun. 1, 2004
6731040 Brush motor for electric power steering system May. 4, 2004
6720701 Method of manufacturing commutator, apparatus for manufacturing commutator, and commutator Apr. 13, 2004
6713931 Cylindrical commutator securely fixed to mold resin Mar. 30, 2004
6667564 Mechanically-commutated DC motor Dec. 23, 2003
6657354 Dynamo-electric machine having commutator and manufacturing method thereof Dec. 2, 2003
6611077 Motor having a commutator Aug. 26, 2003
6490780 Method for making a commutator Dec. 10, 2002
6489703 Commutator forming plate, commutator, motor with commutator and manufacturing the same Dec. 3, 2002
6448683 Method of producing a rotor Sep. 10, 2002
6369484 Commutator of rotary electric machine and method of manufacturing the same Apr. 9, 2002
6332263 Method of producing a rotor for a commutator machine using an angled sonotrode Dec. 25, 2001
6307296 Commutator Oct. 23, 2001
6239531 Apparatus and method of mechanically commutating a brushless motor May. 29, 2001
6236136 Methods and results of manufacturing commutators May. 22, 2001
6222298 Carbon commutator and method for producing the same Apr. 24, 2001
6181046 Dynamo-electric machine with commutator assembly Jan. 30, 2001
6160337 Electric motor with carbon track commutator Dec. 12, 2000
6157110 Rotor Dec. 5, 2000
6114791 Commutator for motor using amorphous carbon and fuel pump unit using the same Sep. 5, 2000
6109893 Electric fuel pump with grooved commutator face Aug. 29, 2000
6057626 Commutator for a dynamo-electric machine and method of manufacture therefor May. 2, 2000
5982072 Electric motor having a plurality of brushes and commutators Nov. 9, 1999
5958269 Toner fixing heater device having inclined heater electrode ends Sep. 28, 1999
5955812 Electric motor with carbon track commutator Sep. 21, 1999
5932949 Carbon commutator Aug. 3, 1999
5925962 Electric motor commutator Jul. 20, 1999
5920141 Plug in commutator, a plug in segment for making a plug in commutator and a hub body for making a plug in commutator Jul. 6, 1999
5910696 Reduced noise commutator system Jun. 8, 1999

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