ClassID:

150281

F16H2007/0859 - CPC Classification

Classification description:

Gearings for conveying rotary motion by endless flexible members; Means for varying tension of belts, ropes, or chains with means for impeding reverse motion Check valves

Recent Application in this class:
#1
20260049666
2026-02-19

HYDRAULIC CHECK VALVE UTILIZING AN ORTHO-PLANAR SPRING

#2
20240191783
2024-06-13

Variable stiffness function through a check valve in a hydraulic

#3
20240167542
2024-05-23

Chain tensioner

#4
20240068582
2024-02-29

HYDRAULIC CHECK VALVE UTILIZING AN ORTHO-PLANAR SPRING

#5
20230407945
2023-12-21

Hydraulic tensioner

#6
20230258246
2023-08-17

Apparatus for eliminating slack and vibrations in the chain of a chain drive

#7
20220299091
2022-09-22

Tensioning device with a single securing ring

#8
20220196122
2022-06-23

Tensioner

#9
20210054912
2021-02-25

Variable force tensioner arm with cap disk spring

#10
20210018073
2021-01-21

Chain tensioner

#11
20210010571
2021-01-14

System for a belt tensioner

#12
20210010570
2021-01-14

Tensioner

#13
20200400218
2020-12-24

RETENTION OF CHAIN TENSIONER PISTON

#14
20200393023
2020-12-17

Tensioner

#15
20200378479
2020-12-03

SEALED TENSIONER

#16
20200370625
2020-11-26

Variable force tensioner with internal reservoir technology primary bore

#17
20200271199
2020-08-27

SEALED TENSIONER WITH CLOSED CELL FOAM

#18
20200256433
2020-08-13

Tensioner

#19
20200200239
2020-06-25

Tensioner with piston containing an internal check valve

#20
20200191243
2020-06-18

Tensioner with spring force control in a second bore

#21
20200018383
2020-01-16

HYDRAULIC TENSIONER WITH MOVING SLEEVE

#22
20200011401
2020-01-09

Tensioner

#23
20190376583
2019-12-12

Belt tensioner

#24
20190360559
2019-11-28

Tensioner

#25
20190353228
2019-11-21

ANTI-RETURN SYSTEM FOR HYDRAULIC TENSIONER

#26
20190338836
2019-11-07

PRESSURE ACTIVATED METALLIC BAND PISTON SEAL

#27
20190323580
2019-10-24

Tensioner

#28
20190316658
2019-10-17

CHECK VALVE ASSEMBLY STRUCTURE FOR HYDRAULIC TENSIONER

#29
20190309831
2019-10-10

HYDRAULIC TENSIONER ARM MOUNTING WITH LEVER

#30
20190277371
2019-09-12

Winding transmission body tension device

#31
20190257392
2019-08-22

Tensioner

#32
20190257391
2019-08-22

Chain tensioner

#33
20190257390
2019-08-22

Tensioner

#34
20190257389
2019-08-22

Chain tensioner

#35
20190242461
2019-08-08

Chain tensioner

#36
20190170224
2019-06-06

Hydraulic tensioning device for a chain drive

#37
20190154119
2019-05-23

Auto-tensioner

#38
20190128389
2019-05-02

Tensioning device for a chain drive

#39
20190120343
2019-04-25

Tensioner and relief valve unit

#40
20190113113
2019-04-18

Hydraulic tensioner with tunable check valve

#41
20190113112
2019-04-18

Hydraulic tensioning device for a chain drive

#42
20190107178
2019-04-11

Tensioner

#43
20190024762
2019-01-24

Chain drive tensioner spring force control mechanism

#44
20190011022
2019-01-10

Tensioner

#45
20190003557
2019-01-03

Press-fit check valve for a hydraulic tensioner reservoir with metered backflow

#46
20180363740
2018-12-20

Tensioner with stiffness controllable check valve

#47
20180363739
2018-12-20

Traction mechanism tensioning unit for a traction mechanism

#48
20180313434
2018-11-01

Chain tensioner

#49
20180306281
2018-10-25

Hydraulic auto-tensioner

#50
20180274638
2018-09-27

Tensioner

#51
20180274637
2018-09-27

Tensioner

#52
20180259044
2018-09-13

Hydraulic tensioning device for a chain drive

#53
20180238424
2018-08-23

Valve unit with carrier plate and valve body

#54
20180223967
2018-08-09

TWO PIECE PISTON WITH VENTING

#55
20180180191
2018-06-28

INTEGRATED CHECK-RELIEF VALVE

#56
20180172116
2018-06-21

Control of hydraulic tensioner tuning using hole size in piston nose

#57
20180128355
2018-05-10

Tensioner

#58
20180128354
2018-05-10

Tensioner

#59
20180119832
2018-05-03

INTEGRATED DISK CHECK VALVE IN A HYDRAULIC TENSIONER WITH METERED BACKFLOW

#60
20180112748
2018-04-26

Chain drive tensioner spring force control mechanism

#61
20180094709
2018-04-05

Hydraulic tensioner with controllable inlet pressure

#62
20180087628
2018-03-29

Tensioner

#63
20180066734
2018-03-08

Hydraulic auto tensioner

#64
20180066732
2018-03-08

Hydraulic traction mechanism tensioner including a pressure regulator

#65
20180017142
2018-01-18

Hydraulic auto-tensioner

#66
20170370447
2017-12-28

HYDRAULIC TENSIONER WITH CANTILEVER SHIPPING SPRING

#67
20170363181
2017-12-21

Weight and cost optimized carrier for modular hydraulic tensioner

#68
20170356529
2017-12-14

VARIABLE FORCE TENSIONING ASSEMBLY

#69
20170356528
2017-12-14

Tensioning device for a chain drive

#70
20170328445
2017-11-16

Autonomous hydraulic expansion and contraction apparatus

#71
20170321785
2017-11-09

Valvular paths

#72
20170314651
2017-11-02

Vortex channel

#73
20170255222
2017-09-07

Tensioning device having a transport securing concept

#74
20170254393
2017-09-07

Tensioner with spring force control in a second bore

#75
20170254392
2017-09-07

Tensioner with spring force control in a second bore

#76
20170227135
2017-08-10

Pressure relief valve tuning feature

#77
20170175858
2017-06-22

Tensioner with hydraulic locking feature

#78
20170159776
2017-06-08

Chain tensioner

#79
20170146099
2017-05-25

Tensioner

#80
20170138444
2017-05-18

Chain tensioner

#81
20170138443
2017-05-18

Chain tensioner

#82
20170130807
2017-05-11

Chain tensioner

#83
20170108093
2017-04-20

TENSIONER

#84
20170067545
2017-03-09

CHAIN TENSIONER

#85
20170059012
2017-03-02

Tensioner

#86
20170059011
2017-03-02

Hydraulic chain tensioner with oil reservoir for inverted installations

#87
20170045120
2017-02-16

Linear tensioner

#88
20170030434
2017-02-02

Tensioner

#89
20170023140
2017-01-26

HIGH FLOW AND QUICK RESPONSE DISK STYLE CHECK VALVE FOR HYDRAULIC TENSIONER

#90
20170023107
2017-01-26

Orifice flow valve

#91
20160369874
2016-12-22

Expanding piston hydraulic chain tensioner

#92
20160356365
2016-12-08

Integrated pressure relief valve for hydraulic tensioner

#93
20160348765
2016-12-01

Tensioner

#94
20160327135
2016-11-10

Hydraulic tensioning device for a traction mechanism drive

#95
20160290447
2016-10-06

Chain tensioner and relief valve unit

#96
20160245376
2016-08-25

Chain drive tensioner spring force control mechanism

#97
20160245375
2016-08-25

Chain drive tensioner spring force control mechanism

#98
20160230852
2016-08-11

Hydraulic auto-tensioner

#99
20160215860
2016-07-28

Belt tensioner mount

#100
20160186838
2016-06-30

Chain tensioner

#101
20160033016
2016-02-04

Tensioner with spring force control

#102
20150354674
2015-12-10

Chain or belt tensioner with a ratchet that deactivates

#103
20150330482
2015-11-19

Tensioner with spring force control in a second bore

#104
20150267789
2015-09-24

Chain tensioner

#105
20150252878
2015-09-10

Hydraulic auto-tensioner for engine accessory

#106
20150240918
2015-08-27

Hydraulic tensioner device

#107
20150226345
2015-08-13

Overpressure valve in the form of a check valve

#108
20150024886
2015-01-22

Variable flow hydraulic chain tensioner

#109
20140378253
2014-12-25

Hydraulic auto-tensioner

#110
20140364257
2014-12-11

Hydraulically ratcheted chain tensioner

#111
20140349795
2014-11-27

Internal combustion engine and motorcycle equipped with the engine

#112
20140200104
2014-07-17

Chain tensioner

#113
20140179471
2014-06-26

Chain or belt tensioner with a ratchet that deactivates

#114
20140100068
2014-04-10

Chain tensioner

#115
20140057748
2014-02-27

Hydraulic auto-tensioner

#116
20130345002
2013-12-26

Tensioner for a traction device having an overpressure valve with a sealing cage, and traction device drive having a such tensioner

#117
20130337954
2013-12-19

Tensioning device with at least two vent elements

#118
20130331214
2013-12-12

Variable flow check valve for hydraulic tensioner

#119
20130331212
2013-12-12

Tensioner

#120
20130310206
2013-11-21

Ratchet-type tensioner

#121
20130303318
2013-11-14

Traction-means tensioning device having a securing element, and internal combustion engine having such a traction-means tensioning device

#122
20130288836
2013-10-31

Hydraulic tensioner

#123
20130281238
2013-10-24

Ring-type tensioner

#124
20130274045
2013-10-17

Ratchet tensioner

#125
20130260930
2013-10-03

Hydraulic tensioner

#126
20130109518
2013-05-02

HYDRAULIC TENSIONER

#127
20130017913
2013-01-17

PRESSURE RELIEF VALVE IN A TENSIONING SYSTEM

#128
20130005523
2013-01-03

Engine drive system

#129
20120329590
2012-12-27

HYDRAULIC TENSIONER

#130
20120322596
2012-12-20

CHAIN TENSIONING DEVICE FOR USE IN A MOTOR VEHICLE

#131
20120309570
2012-12-06

Ring-type tensioner

#132
20120252616
2012-10-04

Air bleeding valve for hydraulic tensioner of an engine and hydraulic tensioner incorporating same

#133
20120252615
2012-10-04

Hydraulic tensioner

#134
20120244975
2012-09-27

Ratchet-type tensioner

#135
20120225743
2012-09-06

Rachet-type tensioner

#136
20120202628
2012-08-09

Controllable Hydraulic Turnbuckle

#137
20120196709
2012-08-02

Ratchet-type tensioner

#138
20120192821
2012-08-02

Motorcycle camshaft drive tensioner

#139
20120135832
2012-05-31

Chain tensioner device

#140
20120135831
2012-05-31

Tensioning device with a damping means comprising a minimum capacity

#141
20120108376
2012-05-03

Tensioning device with a cylindrical latching system

#142
20120090457
2012-04-19

ANNULAR SPRING ELEMENT FOR A HYDRAULIC BELT TENSIONER

#143
20120052996
2012-03-01

Chain tensioner device

#144
20120024249
2012-02-02

HYDRAULIC BACKLASH COMPENSATING ELEMENT

#145
20110297906
2011-12-08

Hydraulic tensioning device for a flexible drive means

#146
20110287880
2011-11-24

Chain tensioner

#147
20110269584
2011-11-03

Ball-type tensioner

#148
20110263366
2011-10-27

Hydraulic tensioner

#149
20110256970
2011-10-20

Chain tensioner

#150
20110251000
2011-10-13

ENDLESS TRACTION MECHANISM TENSIONER

#151
20110237370
2011-09-29

Tensioning device for an endless drive means having a combination valve

#152
20110195810
2011-08-11

Tensioning apparatus with a blocking device

#153
20110183796
2011-07-28

RATCHET-TYPE TENSIONER

#154
20110098145
2011-04-28

TENSION REGULATOR APPLIED TO A TIMING BELT

#155
20110021298
2011-01-27

Chain tensioner

#156
20110015013
2011-01-20

Hydraulic tensioning system comprising integrated overpressure valve

#157
20110012045
2011-01-20

VALVE CAP FOR A NON-RETURN VALVE

#158
20110003657
2011-01-06

Chain tensioner

#159
20100298078
2010-11-25

RATCHET-TYPE TENSIONER

#160
20100298077
2010-11-25

RATCHET-TYPE TENSIONER

#161
20100222167
2010-09-02

MODULAR HYDRAULIC TENSIONER WITH RATCHET

#162
20100219024
2010-09-02

Hall display device for elevator

#163
20100197431
2010-08-05

Chain tensioner having biased disabling mechanism

#164
20100181518
2010-07-22

VALVE SPRING FOR A PLATE VALVE

#165
20100173735
2010-07-08

Hydraulic tensioner with overtravel limiter

#166
20100120564
2010-05-13

HYDRAULIC BELT TENSIONER COMPRISING A SPECIAL PISTON

#167
20100099529
2010-04-22

Chain tensioner

#168
20100093474
2010-04-15

CHAIN TENSIONER

#169
20100093473
2010-04-15

Chain tensioning apparatus with temperature-based leakdown

#170
20100087285
2010-04-08

CHAIN TENSIONER

#171
20100075790
2010-03-25

HYDRAULIC TENSIONING ELEMENT FOR A TRACTION MECHANISM DRIVE

#172
20100062886
2010-03-11

OIL FEED TYPE AUTO-TENSIONER

#173
20100048334
2010-02-25

HYDRAULIC TENSIONING UNIT FOR FLEXIBLE DRIVES

#174
20100029424
2010-02-04

CHECK VALVE WITH SPRING RETAINED BALL

#175
20100022339
2010-01-28

Sliding rack ratchet tensioner

#176
20100022337
2010-01-28

Variable leakdown chain drive tensioner

#177
20100016105
2010-01-21

Chain tensioner

#178
20090298628
2009-12-03

Hydraulic auto-tensioner

#179
20090258737
2009-10-15

Chain tensioner device

#180
20090247336
2009-10-01

Hydraulic auto-tensioner with double seal ring

#181
20090247335
2009-10-01

HYDRAULIC TENSIONER

#182
20090209378
2009-08-20

HYDRAULIC TENSIONER

#183
20090209377
2009-08-20

Hydraulic tensioner

#184
20090209376
2009-08-20

Hydraulic tensioner

#185
20090197722
2009-08-06

Tensioner for endless transmission belt and internal combustion engine having the tensioner

#186
20090197721
2009-08-06

Tensioner for endless transmission belt

#187
20090170647
2009-07-02

Hydraulic tensioner

#188
20090124441
2009-05-14

Housing of a tensioning system with an intergrated spray nozzle

#189
20090111628
2009-04-30

TENSIONER FOR A CHAIN OR BELT

#190
20090111627
2009-04-30

Tensioner with an adjuster

#191
20090017949
2009-01-15

Chain tensioner

#192
20080318718
2008-12-25

Downward angle settable hydraulic tensioner

#193
20080318717
2008-12-25

Hydraulic tensioner

#194
20080293526
2008-11-27

Hydraulic tensioner with a band type check valve

#195
20080289703
2008-11-27

Hydraulic Check Valve Assembly

#196
20080287232
2008-11-20

Hydraulic tensioning system

#197
20080280711
2008-11-13

Chain Tensioner

#198
20080261737
2008-10-23

Hydraulic tensioner

#199
20080261736
2008-10-23

Chain tensioner

#200
20080248906
2008-10-09

Tensioning System

#201
20080220918
2008-09-11

Downward angle settable hydraulic tensioner

#202
20080207365
2008-08-28

Hydraulic tensioner

#203
20080127915
2008-06-05

Motor engine family

#204
20080121834
2008-05-29

PLATE VALVE FOR TRACTION ELEMENT TENSIONING SYSTEMS

#205
20080119309
2008-05-22

HYDRAULIC TRACTION ELEMENT TENSIONER WITH INTEGRATED TENSION-FORCE LIMITING

#206
20080096707
2008-04-24

Chain tensioner

#207
20080090685
2008-04-17

Deairing type hydraulic tensioner

#208
20080064546
2008-03-13

Hydraulic Chain Tensioner with Reduced Piston Pressure

#209
20080020876
2008-01-24

Tension adjusting device for engine accessory driving belt

#210
20080015069
2008-01-17

Hydraulic Tensioner

#211
20070287562
2007-12-13

Hydraulic Tensioner For A Traction Mechanism Of An Internal Combustion Engine

#212
20070272416
2007-11-29

Hydraulic downhole oil recovery system

#213
20070270259
2007-11-22

Hydraulic tensioning device for a traction mechanism drive

#214
20070249444
2007-10-25

Deairing type hydraulic tensioner

#215
20070243961
2007-10-18

RATCHETING TENSIONER WITH OVERRIDE

#216
20070213152
2007-09-13

Chain Tensioner

#217
20070179001
2007-08-02

Tensioner for chain or belt drives

#218
20070155554
2007-07-05

Auto-tensioner for engine accessory

#219
20070142146
2007-06-21

Belt assembly with a tensioning device

#220
20070119297
2007-05-31

LINEAR HYDRAULIC AMPLIFIER

#221
20070105465
2007-05-10

Watercraft Having a Four Stroke Engine with a Supercharger

#222
20070068465
2007-03-29

Watercraft having a four stroke engine with a supercharger

#223
20070066428
2007-03-22

Tensioning device

#224
20070054767
2007-03-08

Inner ratchet chain tensioner

#225
20070032323
2007-02-08

Plastic hydraulic tensioner

#226
20070032322
2007-02-08

Hydraulic chain tensioner assembly

#227
20070032321
2007-02-08

Plastic hydraulic tensioner

#228
20060270500
2006-11-30

Chain tensioner

#229
20060194661
2006-08-31

Ratchet type tensioner

#230
20060166769
2006-07-27

Hydraulic chain tensioner

#231
20060160645
2006-07-20

Tensioner with ratcheting device

#232
20060116229
2006-06-01

Chain tensioner

#233
20060094549
2006-05-04

Hydraulic tensioner

#234
20060094548
2006-05-04

Chain tensioner

#235
20060089221
2006-04-27

Hydraulic tensioner with improved relief valve

#236
20060084537
2006-04-20

Tensioner with improved stopper

#237
20060063625
2006-03-23

Hydraulic tensioner lifter

#238
20060003859
2006-01-05

Chain tensioner for two-wheeled vehicle engine

#239
20050272542
2005-12-08

Ring type hydraulic tensioner

#240
20050265856
2005-12-01

Hydraulic tensioner

#241
20050255952
2005-11-17

Hydraulic tensioner

#242
20050239589
2005-10-27

Hydraulic tensioner

#243
20050227799
2005-10-13

Hydraulic tensioner

#244
20050197223
2005-09-08

Hydraulic tensioner

#245
20050170922
2005-08-04

Tensioner having a tensioning pressure control valve

#246
20050130777
2005-06-16

Hydraulic tensioner

#247
20050096166
2005-05-05

Hydraulic tensioner

#248
20050090343
2005-04-28

Hydraulic tensioner

#249
20050090342
2005-04-28

Hydraulic tensioner

#250
20050064970
2005-03-24

Auto tensioner

#251
20050064969
2005-03-24

Oil tight type chain tensioner

#252
20050059517
2005-03-17

Tensioner for a chain or belt

#253
20050049094
2005-03-03

Hydraulic tensioner

#254
20050049093
2005-03-03

Chain tensioner

#255
20050045131
2005-03-03

Engine for a vehicle

#256
20050014587
2005-01-20

Hydraulic tensioner