ClassID:

40695

B23B41/12 - CPC Classification

Classification description:

Boring or drilling machines or devices specially adapted for particular work ; Accessories specially adapted therefor for forming working surfaces of cylinders, of bearings, e.g. in heads of driving rods, or of other engine parts

Recent Application in this class:
#1
20250319530
2025-10-16

APPARATUS, SYSTEMS, & METHODS FOR ENGINE DOWEL INSTALLATION

#2
20250242418
2025-07-31

TOOL INSERT IN A CYLINDER BORING MACHINE FOR MACHINING A CYLINDER BORE

#3
20250214152
2025-07-03

CUTTING MACHINE

#4
20230373015
2023-11-23

APPARATUS, SYSTEMS, & METHODS FOR ENGINE DOWEL INSTALLATION

#5
20230311218
2023-10-05

MACHINING TOOL COMPRISING A SETTABLE GUIDE RAIL

#6
20230143821
2023-05-11

MACHINING TOOL

#7
20220297203
2022-09-22

Apparatus, systems, and methods for engine dowel installation

#8
20210402491
2021-12-30

Hole drilling machine and method for drilling oval hole and inner-diameter-changing hole by means of hole drilling machine

#9
20210276105
2021-09-09

Machining tool

#10
20210197294
2021-07-01

Hole drilling machine and method for drilling oval hole and inner-diameter-changing hole by means of hole drilling machine

#11
20210008646
2021-01-14

Method for machining a crankcase and machining device

#12
20210008645
2021-01-14

Double-sided drilling fixture for die-forged pistons and double-sided drilling process thereof

#13
20210002753
2021-01-07

METHOD AND ARRANGEMENT FOR MACHINING A WORKPIECE

#14
20200298322
2020-09-24

Cutting machine and method

#15
20200230839
2020-07-23

Mechanical roughening by a tool with translatable swaging blades

#16
20200147697
2020-05-14

Tool Head

#17
20200108479
2020-04-09

Automatic Precision Worktop for Drilling without Deviation for Cylindrical Workpiece

#18
20200086394
2020-03-19

Cutting head operated by centrifugal force and cutting apparatus including the same

#19
20200011418
2020-01-09

Method for processing a cylinder

#20
20200001380
2020-01-02

Surface roughening tool with translatable swaging blades

#21
20190210119
2019-07-11

Roughening tool and method for roughening a cylindrical surface

#22
20190084171
2019-03-21

MECHANICAL ROUGHENING PROFILE MODIFICATION TOOL

#23
20190061018
2019-02-28

CUTTING TOOL AND CUTTING DEVICE

#24
20180345387
2018-12-06

Temperature management for a cryogenically cooled boring tool

#25
20180333788
2018-11-22

Four-directional drilling machine

#26
20180290216
2018-10-11

Hybrid cutting apparatus and method of cutting groove using the same

#27
20180281080
2018-10-04

Floating and precision adjustable cutters for boring

#28
20180141136
2018-05-24

Surface roughening tool and method

#29
20180120191
2018-05-03

Crankshaft balancer machine

#30
20180065197
2018-03-08

Cutting element, tool, and method for producing a helically extending, trapezoidally undercut groove in a cylindrical surface of a bore

#31
20180050394
2018-02-22

Method for producing a groove structure in an internal surface of a piston

#32
20170304978
2017-10-26

Machining apparatus

#33
20170291234
2017-10-12

Tool for roughening a metallic surface

#34
20170182624
2017-06-29

Valve seat machining device, and valve seat machining method using said valve seat machining device

#35
20170182623
2017-06-29

Valve seat machining device, and valve seat machining method using said valve seat machining device

#36
20170175670
2017-06-22

INTERNAL COMBUSTION ENGINE, VEHICLE HAVING THE SAME, AND METHOD FOR MANUFACTURING INTERNAL COMBUSTION ENGINE

#37
20170165764
2017-06-15

Rotary boring tool with detachable cutting inserts and method for machining a cylinder bore of a combustion engine

#38
20170120352
2017-05-04

Milling tool with insert compensation

#39
20170082195
2017-03-23

METHOD AND TOOL FOR MECHANICALLY ROUGHENING A CYLINDRICAL SURFACE

#40
20170045013
2017-02-16

Cylindrical engine bore

#41
20170014916
2017-01-19

Floating and precision adjustable cutters for boring

#42
20160368063
2016-12-22

BORING TOOL AND BORING METHOD USING SAME

#43
20160305397
2016-10-20

Gearbox repair apparatus

#44
20160288283
2016-10-06

Tool spindle having an active magnetic bearing

#45
20160236285
2016-08-18

Coring apparatus for rubber stator

#46
20160170401
2016-06-16

Round hole machining method and round-hole machining device

#47
20160167138
2016-06-16

Round hole machining method and round hole machining device

#48
20150343537
2015-12-03

Machining method and machining apparatus of valve holes of cylinder head, and clamp device

#49
20150306680
2015-10-29

Method and device for producing a friction bearing or a part thereof

#50
20150217353
2015-08-06

Skiving tool

#51
20150202695
2015-07-23

Workpiece clamping apparatus, machine tool and method for working a workpiece

#52
20150174668
2015-06-25

Method and tool for roughening an inner surface of a cylindrical bore

#53
20150044385
2015-02-12

Method for finishing work of spray-coated surface and working tool

#54
20140360355
2014-12-11

Cylindrical surface profile cutting tool and process

#55
20140308149
2014-10-16

Long reach spindle drive systems and method

#56
20140227046
2014-08-14

Method and tool for producing a surface of predetermined roughness

#57
20140216217
2014-08-07

Paring tool, method for producing a cylinder unit and lathe

#58
20140050544
2014-02-20

Device and method for generating microstructures in cylindrical surfaces

#59
20130209012
2013-08-15

Structured sliding surface of a bearing shell

#60
20130058730
2013-03-07

Device and method for machining a cylinder bore by means of a geometrically defined cutter and a geometrically undefined cutter

#61
20130025124
2013-01-31

Method and machining installation for the finishing of a crankshaft bearing bore

#62
20120324729
2012-12-27

Machining method and machining apparatus of valve holes of cylinder head, and clamp device

#63
20120149288
2012-06-14

Combined processing tool

#64
20120132044
2012-05-31

Refacing tools and methods

#65
20120121348
2012-05-17

BORING TOOL AND METHOD FOR CYLINDER BORES

#66
20120094063
2012-04-19

Prespray processing method

#67
20120028550
2012-02-02

Bore working tool

#68
20110131781
2011-06-09

SYSTEMS AND METHODS FOR ASSEMBLING A BORE REPAIR ASSEMBLY FOR USE IN A WIND TURBINE

#69
20110027028
2011-02-03

Boring apparatus and boring method

#70
20110023667
2011-02-03

Method and device for boring non-round hole

#71
20100310328
2010-12-09

Machines for boring axially-aligned surfaces and related methods

#72
20100300713
2010-12-02

Cam driving device and processing method

#73
20100223787
2010-09-09

Cam bearing surface of an engine cylinder head that includes an axially extending oil passage

#74
20100129170
2010-05-27

Long reach spindle drive systems and method

#75
20100074703
2010-03-25

Machine tool

#76
20100031799
2010-02-11

Method and tool for producing a surface of predetermined roughness

#77
20090297286
2009-12-03

Cutter for machining counterbore in engine block

#78
20090297283
2009-12-03

Cutting edge configuration of cutting tool

#79
20090129879
2009-05-21

Tool head, machine tool and boring method of bore of cylinder block using the machine tool

#80
20080245226
2008-10-09

Surface roughening methods using cutting tools

#81
20080005911
2008-01-10

Structure of knife

#82
20070048098
2007-03-01

Method and apparatus for machining crankshafts or camshafts

#83
20050155471
2005-07-21

Radial feed facing head for boring bar

#84
20050155470
2005-07-21

Radial feed facing head for boring bar

#85
20050084354
2005-04-21

Machine tool

#86
15084818
2018-10-23

CNC fixture

#87
14491475
2017-06-06

Steering spindle repair kit and associated apparatus and methods