B24B21/20 - CPC Classification Index

#1

20260115854

2026-04-30

Platen Apparatus and Turbine Contact Wheel Thereof for Belt Grinders

#2

20260091461

2026-04-02

CONVEYOR PLATFORM STRUCTURE HAVING A BELT TENSION ADJUSTMENT DEVICE

#3

20250289092

2025-09-18

Water Cooled Sanding Table with Room Heater Attachment

#4

20250214194

2025-07-03

EQUIPMENT FOR SURFACE PROCESSING OF PLATE-SHAPED ELEMENTS

#5

20250083277

2025-03-13

TRACKING MECHANISMS FOR ABRASIVE BELT MACHINES

#6

20240293909

2024-09-05

GRINDING DEVICE FOR CREATING SURFACE STRUCTURES

#7

20240139899

2024-05-02

Platen Apparatus and Turbine Contact Wheel Thereof For Belt Grinders

#8

20230173635

2023-06-08

Oscillating device of belt sander

#9

20220331929

2022-10-20

Belt sander

#10

20220266412

2022-08-25

Belt sander

#11

20220176510

2022-06-09

Belt sander assembly

#12

20220023995

2022-01-27

Safety guards and equipment for use in the preparation of test specimens

#13

20200072324

2020-03-05

Belt tensioning apparatus for material removal machines

#14

20200070305

2020-03-05

Endless abrasive belt for a sanding machine

#15

20200023486

2020-01-23

Polishing apparatus and polishing method

#16

20190283201

2019-09-19

EQUIPMENT FOR SURFACE PROCESSING OF PLATE-SHAPED ELEMENTS

#17

20190262965

2019-08-29

Grinding Element and Grinding Apparatus

#18

20190217438

2019-07-18

Substrate processing apparatus and control method

#19

20190084113

2019-03-21

Powered sharpener with user directed indicator mechanism

#20

20180290259

2018-10-11

Expandable handheld pneumatic belt grinder

#21

20180243875

2018-08-30

Cutting tool sharpener

#22

20180215007

2018-08-02

Abrasive belt grinding device for profile precision consistency

#23

20180126512

2018-05-10

Device for machining surfaces

#24

20180093359

2018-04-05

Belt sander ergonomic articulating arm belt with button release, lock, and sealed housing

#25

20180036858

2018-02-08

Hand-held sanding device with continuous rotating belt

#26

20180001432

2018-01-04

Cutting tool sharpener

#27

20170129069

2017-05-11

Finishing belt device and method for finishing a workpiece

#28

20170087685

2017-03-30

Pressing device having a toothed belt

#29

20170072528

2017-03-16

Polishing apparatus and polishing method

#30

20160236316

2016-08-18

AUTOMATIC ADJUSTMENT DEVICE OF BELT SANDER CONVEYER

#31

20160151877

2016-06-02

Belt transmission device and grinding apparatus

#32

20160023320

2016-01-28

Machining tool including a pivoting machining arm

#33

20150360339

2015-12-17

Belt-type grinding tool

#34

20150298280

2015-10-22

Polishing apparatus and polishing method

#35

20150151398

2015-06-04

Polishing apparatus and polishing method

#36

20150104620

2015-04-16

Polishing apparatus and polishing method

#37

20150099434

2015-04-09

Transform mechanism of a finishing wheel for an abrasive belt polishing finisher

#38

20150044949

2015-02-12

Grinding Device and Method for Grinding Panel

#39

20150044944

2015-02-12

Surface processing system for a work piece

#40

20140220871

2014-08-07

Machining tool

#41

20140199926

2014-07-17

Cutting tool sharpener

#42

20140141700

2014-05-22

BELT GRINDER

#43

20140094099

2014-04-03

Belt finishing device, belt finishing system and method for producing a belt finishing device

#44

20140094095

2014-04-03

Polishing method involving a polishing member polishing at angle tangent to the substrate rotational direction

#45

20130078894

2013-03-28

Polishing device with driving mechanisms

#46

20120252320

2012-10-04

Polishing apparatus and polishing method

#47

20120244787

2012-09-27

Polishing apparatus and polishing method

#48

20120208437

2012-08-16

Polishing apparatus and polishing method

#49

20120122375

2012-05-17

DEVICE FOR MEASURING THE FEED MOTION OF A FINISHING BELT

#50

20120052777

2012-03-01

WIDE BELT SANDER

#51

20110275292

2011-11-10

Belt sander

#52

20110136412

2011-06-09

Cutting tool sharpener

#53

20110092143

2011-04-21

HAND SANDING BLOCK FOR USE WITH CONTINUOUS SANDING BELTS

#54

20110009038

2011-01-13

Endless belt type grinding tool

#55

20100248591

2010-09-30

BELT GRINDING MACHINE TOOL WITH DEVICE FOR CONTROLLING THE POSITION OF THE ABRASIVE BELT

#56

20100105294

2010-04-29

METHODS AND APPARATUS TO MINIMIZE THE EFFECT OF TAPE TENSION IN ELECTRONIC DEVICE POLISHING

#57

20090325465

2009-12-31

Polishing apparatus, polishing method, and processing apparatus

#58

20090283286

2009-11-19

Power tool

#59

20090149119

2009-06-11

System for removing material from components

#60

20090142992

2009-06-04

Polishing apparatus and polishing method

#61

20080207096

2008-08-28

Wide belt sander

#62

20080081544

2008-04-03

TENSION/RELEASE MECHANISM FOR BELT SANDER

#63

20070243799

2007-10-18

Knife sharpening apparatus

#64

20070238401

2007-10-11

Belt sander

#65

20070212982

2007-09-13

Automated floor sander

#66

20070202783

2007-08-30

Belt sander

#67

20070202782

2007-08-30

Belt sander

#68

20070197151

2007-08-23

Belt sander

#69

20070197150

2007-08-23

Belt sander

#70

20070197149

2007-08-23

Belt sander

#71

20070197137

2007-08-23

Belt sander

#72

20070190914

2007-08-16

Belt sander

#73

20070161343

2007-07-12

Belt sander

#74

20060264161

2006-11-23

Belt sander

#75

20060211347

2006-09-21

Belt sander

#76

20060148388

2006-07-06

Belt grinder and attachment for grinding pipe ends

#77

20060030248

2006-02-09

Handheld skate sharpener

#78

20060025048

2006-02-02

Abrasive article detection system and method

#79

20050221735

2005-10-06

Belt grinder and attachment for grinding pipe ends

#80

20050054466

2005-03-10

Apparatus for processing a prosthetic component

#81

20050009457

2005-01-13

Hand-held endless belt abrading machine

#82

18908864

2026-01-13

Adjustable speed belt-disc sander

#83

15852266

2021-01-12

Jewelry tool

#84

14679714

2016-06-07

Sharpening a cutting tool using multiple abrasive belts

#85

14252513

2015-04-07

Sharpener for cutting tools