Patents-Review.com
ClassID:

215301 ⎘

H01R39/20 - CPC Classification

Classification description:

Rotary current collectors, distributors or interrupters; Details for dynamo electric machines; Contacts for co-operation with commutator or slip-ring, e.g. contact brush characterised by the material thereof

Sub-classes:
Recent Application in this class:
#1
20250379407
2025-12-11

DISCHARGE DEVICE FOR DISCHARGING ELECTRIC CURRENTS, AND MACHINE COMPRISING A DISCHARGE DEVICE OF THIS KIND

 #2
20250350080
2025-11-13

SLIDING CONTACT MATERIAL FOR MOTOR BRUSH, MOTOR BRUSH, AND DIRECT CURRENT MOTOR

 #3
20250020163
2025-01-16

AIR BEARING FOR USE AS SEAL

 #4
20240255101
2024-08-01

DETECTION SYSTEMS FOR POWER TOOLS WITH ACTIVE INJURY MITIGATION TECHNOLOGY

 #5
20240055960
2024-02-15

Shunt assembly

 #6
20240055927
2024-02-15

DIRECT-CURRENT MOTOR

 #7
20230208257
2023-06-29

EARTHING CONTACT AND METHOD FOR DISSIPATING ELECTRICAL CURRENTS

 #8
20220048545
2022-02-17

Earthing contact and method for dissipating electric currents

 #9
20220042648
2022-02-10

Detection systems for power tools with active injury mitigation technology

 #10
20210391680
2021-12-16

BRUSH DEVICE FOR ELECTRICALLY CONNECTING A FIRST ELEMENT TO A SECOND ELEMENT, E-MACHINE AND DRIVE DEVICE

 #11
20210254663
2021-08-19

Externally pressurized oil-free freon bearing

 #12
20210218319
2021-07-15

Slip ring assembly

 #13
20210075172
2021-03-11

CARBON BRUSH AND PRODUCTION METHOD

 #14
20200347881
2020-11-05

Air bearing for use as seal

 #15
20200343679
2020-10-29

CARBON BRUSH AND PRODUCTION METHOD

 #16
20200203908
2020-06-25

Discharge device for discharging electric currents

 #17
20200144778
2020-05-07

Superconducting devices, such as slip-rings and homopolar motors/generators

 #18
20200127427
2020-04-23

Electrical contact device and rotating electric machine including the electrical contact device

 #19
20200067248
2020-02-27

MEASURING DEVICE AND METHOD FOR MEASURING A STATE OF WEAR

 #20
20200067247
2020-02-27

Conductive slip ring for logging while drilling instrument

 #21
20190368471
2019-12-05

Brush arrangement

 #22
20190293235
2019-09-26

Detection systems for power tools with active injury mitigation technology

 #23
20190267766
2019-08-29

Measuring Device for Measuring the Wear of Carbon Brushes

 #24
20190199180
2019-06-27

Discharging device for discharging electrical interference

 #25
20180223394
2018-08-09

Sliding contact material and method for manufacturing same

 #26
20180166954
2018-06-14

ELECTRICAL MACHINE WITH BRUSH AND COMMUTATOR HAVING A SPECIFIC DISTRIBUTION OF ELECTRICAL CONDUCTIVITY FOR SUPPRESSION OF SPARKING

 #27
20180062338
2018-03-01

USE OF A CARBON COMPOSITE MATERIAL FOR MANUFACTURING ELECTRICAL CONTACT ELEMENTS FOR A FUEL PUMP, AND CONTACT ELEMENT

 #28
20170346250
2017-11-30

Slipring with reduced contact noise

 #29
20170324204
2017-11-09

Split brush with metal clip

 #30
20170101985
2017-04-13

Oil lubricated compressor

 #31
20170085047
2017-03-23

Sliding member, rotary device, and method for manufacturing sliding member

 #32
20170047697
2017-02-16

Resin bonded carbonaceous brush and method of manufacturing the same

 #33
20170040765
2017-02-09

Electrical device with low friction contact parts

 #34
20160240989
2016-08-18

Metal-carbonaceous brush and method of manufacturing the same

 #35
20160134072
2016-05-12

Device discharging ground currents, particularly in wind turbines

 #36
20150360571
2015-12-17

EcoCharge

 #37
20150295376
2015-10-15

Ring electrode for a slip ring

 #38
20140120743
2014-05-01

WIRE FOR SLIDING CONTACTS, AND SLIDING CONTACTS

 #39
20140038434
2014-02-06

Low cost gold wire brushes

 #40
20140001916
2014-01-02

Contact brush

 #41
20130031774
2013-02-07

LOW COST ELECTRICAL MOTOR COMPONENTS MANUFACTURED FROM CONDUCTIVE LOADED RESIN-BASED MATERIALS

 #42
20120326081
2012-12-27

CARBON BRUSH

 #43
20120262025
2012-10-18

Commutator for Power Transmission in an Electric Machine

 #44
20110018386
2011-01-27

Multilayer brush having a composite

 #45
20100253179
2010-10-07

Micro-image acquisition and transmission system

 #46
20100133951
2010-06-03

Carbon brush for transmitting high currents

 #47
20100029145
2010-02-04

Electrical connector using a canted coil multi-metallic wire

 #48
20090230814
2009-09-17

Carbon brush of motor and method for producing the same

 #49
20090214816
2009-08-27

Aligned Carbon Nanotube Bulk Structure Having Portions Different in Density, Process for Producing The Same and Uses thereof

 #50
20090169728
2009-07-02

Brush material for motor and manufacturing method thereof

 #51
20090060772
2009-03-05

Method of manufacturing metal-graphite brush material for motor

 #52
20090029184
2009-01-29

Process for manufacturing a sliding contact piece for medium to high current densities

 #53
20080303373
2008-12-11

Carbon brush produced by mixing a carbonaceous filler and a binder, and kneading, shaping, and baking the mixture

 #54
20080214032
2008-09-04

Contact element

 #55
20080107860
2008-05-08

Metal-graphite brush

 #56
20080100170
2008-05-01

Carbon brush with wear-protecting means

 #57
20070152533
2007-07-05

Two-stage eutectic metal brushes

 #58
20070120437
2007-05-31

Compact slip ring incorporating fiber-on-tips contact technology

 #59
20070042650
2007-02-22

Sliding electrical contact part

 #60
20060279163
2006-12-14

Homopolar machine with brush improvement

 #61
20060260436
2006-11-23

Carbon brush and method and material for the production thereof

 #62
20060226730
2006-10-12

Brush assembly for dynamoelectric machines having increased wear life

 #63
20060208599
2006-09-21

Fuel pump comprising an electric motor

 #64
20060131983
2006-06-22

Brush, commutator, and commutator device

 #65
20060087197
2006-04-27

Metal-graphite brush

 #66
20060055277
2006-03-16

Brush material for motor and manufacturing method thereof

 #67
20060051980
2006-03-09

Rotary current-collecting device and rotating anode X-ray tube

 #68
20050223538
2005-10-13

Method for production of a multi-layer carbon brush

 #69
20050206270
2005-09-22

Low cost electrical motor components manufactured from conductive loaded resin-based materials

 #70
20050204544
2005-09-22

Methods of making electrical motor components from conductive loaded resin-based materials

 #71
20050191489
2005-09-01

Process for metallic coating of graphite discs or blocks and correspondingly metal-coated graphite discs or graphite blocks

 #72
20050136280
2005-06-23

Fiber brushes free of circulatory currents

 #73
20050082936
2005-04-21

Rotary current-collecting device and rotating anode X-ray tube

 #74
20050006976
2005-01-13

Commutating device for small-sized motor and manufacturing method therefor

 #75
15153453
2019-02-05

Monolithic MAX phase ternary alloys for sliding electrical contacts