Patents-Review.com
ClassID:

45505 ⎘

B25D9/20 - CPC Classification

Classification description:

Portable percussive tools with fluid-pressure drive, , e.g. having several percussive tool bits operated simultaneously; Control devices for the reciprocating piston; Valve arrangements therefor involving a tubular-type slide valve

Recent Application in this class:
#1
20250027368
2025-01-23

VALVE CYLINDER, IMPACT DEVICE AND METHOD

 #2
20230078504
2023-03-16

IMPROVEMENTS IN, OR RELATING TO, EXHAUST VALVES FOR PRESSURISED FLUID OPERATED DEVICES

 #3
20230065490
2023-03-02

IMPROVEMENTS IN, OR RELATING TO, TRIGGER VALVES FOR PRESSURISED FLUID OPERATED DEVICES

 #4
20200368890
2020-11-26

METHOD FOR SETTING THE STRIKING STROKE OF A STRIKING PISTON OF A PERCUSSION APPARATUS, AND A PERCUSSION APPARATUS FOR IMPLEMENTING SAID METHOD

 #5
20200189085
2020-06-18

Valve of Pneumatic Hammer

 #6
20200078917
2020-03-12

Pneumatic hammer

 #7
20190224835
2019-07-25

Hydraulic striking device

 #8
20170312901
2017-11-02

Percussion apparatus

 #9
20170259421
2017-09-14

Hammer protection system and method

 #10
20170087704
2017-03-30

Hydraulic hammer having co-axial accumulator and piston

 #11
20170080555
2017-03-23

Hammer temperature protection system and method

 #12
20170001294
2017-01-05

Hydraulic hammering device

 #13
20170001293
2017-01-05

Hydraulic hammering device

 #14
20160151903
2016-06-02

Hammer having piston sleeve with spiral grooves

 #15
20160138728
2016-05-19

Valve of a hydraulically striking device

 #16
20160053908
2016-02-25

Valve of a hydraulically striking device

 #17
20160046009
2016-02-18

Automatic lubrication system with detune

 #18
20160001432
2016-01-07

Breaking device

 #19
20150273677
2015-10-01

Device in a rock drilling machine and rock drilling machine

 #20
20150083501
2015-03-26

Slide valve, percussion device and method

 #21
20150013534
2015-01-15

Actuation system

 #22
20140262407
2014-09-18

Hydraulic hammer having impact system subassembly

 #23
20140262406
2014-09-18

Hydraulic hammer having co-axial accumulator and piston

 #24
20120138328
2012-06-07

Sleeve/liner assembly and hydraulic hammer using same

 #25
20110315737
2011-12-29

Actuation system

 #26
20110315418
2011-12-29

Recoilless hammer

 #27
20110239854
2011-10-06

VAPORISATION SYSTEM

 #28
20110226836
2011-09-22

Adjustable dose chamber

 #29
20110174512
2011-07-21

Pressurised air pick device with variable control

 #30
20100193212
2010-08-05

Hydraulic pick

 #31
20100059242
2010-03-11

Percussion device

 #32
20090229843
2009-09-17

Valve device for a percussion device and a percussion device for a rock drilling machine

 #33
20090095498
2009-04-16

Percussive device for a rock drilling machine, method for achieving a reciprocating piston movement and rock drilling machine

 #34
20080135270
2008-06-12

Hydraulic hammer

 #35
20070284126
2007-12-13

PNEUMATIC TOOL

 #36
20070277991
2007-12-06

Percussion device

 #37
20070267223
2007-11-22

Percussion device

 #38
20070267205
2007-11-22

Delayed compression sleeve hammer

 #39
20070079697
2007-04-12

Pressure regulating device for a percussive hydraulic apparatus

 #40
20060175091
2006-08-10

Control valve in a percussion device and a method comprising a closed pressure space at the end position of the piston

 #41
20060169468
2006-08-03

Control valve and a method for a percussion device with a working cycle involving several coupling moments

 #42
20060162944
2006-07-27

Pilot valve for a pneumatic tool

 #43
20050247467
2005-11-10

Shock absorbing valve for a pneumatic tool

 #44
20050145400
2005-07-07

Impact tool

 #45
20050109521
2005-05-26

Device for generating a reciprocating movement, valve arrangement therefore and pheumatic tool