ClassID:

146182

F15B2201/31 - CPC Classification

Classification description:

Accumulators; Accumulator separating means having rigid separating means, e.g. pistons

Sub-classes:
Recent Application in this class:
#1
20260054432
2026-02-26

ROLLING ASSEMBLY

#2
20250347300
2025-11-13

PRESSURE APPLYING DEVICE

#3
20250250995
2025-08-07

Hydraulic Accumulator

#4
20250223978
2025-07-10

Piston Accumulator

#5
20250223977
2025-07-10

DROP-IN SIGNAL ACCUMULATOR PISTON KIT AND METHOD FOR REPLACING AN ORIGINAL EQUIPMENT SIGNAL ACCUMULATOR PISTON

#6
20250084872
2025-03-13

METHOD OF PRESSURIZING A FLOATING PISTON ACCUMULATOR

#7
20250043862
2025-02-06

DROP-IN SIGNAL ACCUMULATOR PISTON KIT AND METHOD FOR REPLACING AN ORIGINAL EQUIPMENT SIGNAL ACCUMULATOR PISTON

#8
20250013253
2025-01-09

PRESSURE REGULATOR ASSEMBLY FOR A COOLANT DISTRIBUTION UNIT

#9
20240392809
2024-11-28

ADAPTIVE REPRESSURIZER

#10
20240351246
2024-10-24

ROLLING ASSEMBLY

#11
20240263649
2024-08-08

ACCUMULATOR WITH REINFORCING STRUCTURE

#12
20240191726
2024-06-13

Drop-in signal accumulator piston kit and method for replacing an original equipment signal accumulator piston

#13
20240061453
2024-02-22

Pressure regulator assembly for a coolant distribution unit

#14
20240011510
2024-01-11

PISTON ACCUMULATOR

#15
20230320031
2023-10-05

Cool fluid reservoir for a coolant distribution unit

#16
20230287905
2023-09-14

SPRING DAMPENING FOR ACCUMULATOR SYSTEM

#17
20230204051
2023-06-29

Automatic fluid pump inlet stabilizers and vacuum regulators

#18
20230135948
2023-05-04

Drop-in signal accumulator piston kit and method for replacing an original equipment signal accumulator piston

#19
20230090796
2023-03-23

Piston accumulator

#20
20220397127
2022-12-15

Hydrostatic cylinder with gas pressure accumulator

#21
20220341406
2022-10-27

Automatic fluid pump inlet stabilizers and vacuum regulators

#22
20220325726
2022-10-13

GAS PISTON ACCUMULATOR

#23
20220228606
2022-07-21

Energy storage systems

#24
20220154735
2022-05-19

Drop-in signal accumulator piston kit and method for replacing an original equipment signal accumulator piston

#25
20220057123
2022-02-24

Liquid feeder

#26
20210355968
2021-11-18

Miniature pressure compensating device

#27
20210301837
2021-09-30

Motor operated accumulator

#28
20210285465
2021-09-16

Hydro-pneumatic accumulator with integrated nitrogen precharge regeneration system

#29
20210222763
2021-07-22

Integrated gear pump in remote mounted hydraulic control unit

#30
20210222708
2021-07-22

Hydraulic accumulator

#31
20210062830
2021-03-04

Accumulator piston for use in vehicle transmission system

#32
20210040962
2021-02-11

Fluid actuator

#33
20200400168
2020-12-24

Pressure vessel arrangement providing piston position feedback, pressure vessel, and method for providing piston position feedback in a pressure vessel

#34
20200378408
2020-12-03

Hydraulic damper with valve block

#35
20200362883
2020-11-19

Piston accumulator

#36
20200309158
2020-10-01

Hydropneumatic piston accumulator

#37
20200248717
2020-08-06

Accumulator

#38
20200166056
2020-05-28

Pressure compensation device designed for underwater applications

#39
20200056630
2020-02-20

Accumulator system

#40
20190390419
2019-12-26

Gangway having position locking assembly

#41
20190320545
2019-10-17

Subsea installation

#42
20190292023
2019-09-26

TRANSPORTABLE INLINE HEAVE COMPENSATOR

#43
20190242368
2019-08-08

Multi-buffering energy storage device and application thereof

#44
20190203739
2019-07-04

Motor operated accumulator

#45
20190120257
2019-04-25

Hydropneumatic piston accumulator

#46
20190120256
2019-04-25

Bootstrap accumulator containing integrated bypass valve

#47
20190063015
2019-02-28

Gangway having position locking assembly

#48
20190048897
2019-02-14

Accumulator device and hydropneumatic suspension

#49
20190010963
2019-01-10

ENGINEERED TISSUE SUBSTITUTE SYSTEM

#50
20180372125
2018-12-27

Accumulator module for hydromechanical spring-loaded drive

#51
20180347596
2018-12-06

Safety device

#52
20180290641
2018-10-11

Brake system for a motor vehicle as well as method of operating a brake system for a motor vehicle

#53
20180283408
2018-10-04

Hydraulic accumulator and manufacturing method thereof

#54
20180266443
2018-09-20

Accumulator piston, in particular for a pressure medium accumulator of a hydraulic unit of an electronically slip-controllable vehicle brake system

#55
20180258960
2018-09-13

Engineered tissue substitute system

#56
20180257186
2018-09-13

Accumulator assembly fixture

#57
20180222599
2018-08-09

Hydraulic actuator and accumulator arrangement

#58
20180216639
2018-08-02

Accumulator with secondary gas chamber

#59
20180112681
2018-04-26

HYDRAULIC ACCUMULATOR

#60
20180066680
2018-03-08

Accumulator

#61
20180038390
2018-02-08

Hydraulic timing device

#62
20180031005
2018-02-01

ENGINEERED TISSUE SUBSTITUTE SYSTEM

#63
20180017201
2018-01-18

Pressurized chamber management

#64
20180010618
2018-01-11

Gas charging valve array for an accumulator

#65
20170363115
2017-12-21

Device for the direct recovery of hydraulic energy by means of a single-acting hydraulic cylinder

#66
20170343019
2017-11-30

Actuator assist apparatus, actuator system and method

#67
20170314513
2017-11-02

Gaseous fuel vent handling apparatus and method

#68
20170268539
2017-09-21

Plunger pressure accumulator

#69
20170241454
2017-08-24

Device for recuperation of hydraulic energy and working machine with corresponding device

#70
20170227027
2017-08-10

Device for relieving pressure in hydraulics lines

#71
20170211246
2017-07-27

Gangway having hydraulic position locking assembly

#72
20170198725
2017-07-13

Hydropneumatic pressure accumulator

#73
20170138376
2017-05-18

Hydraulic buffer with fast startup

#74
20170058918
2017-03-02

Piston accumulator with integrated cylinder rod

#75
20170045127
2017-02-16

Hydraulic control unit for a limited slip differential

#76
20160356290
2016-12-08

Accumulator volume detector using an optical measurement

#77
20160333896
2016-11-17

Accumulator device

#78
20160230781
2016-08-11

Distributed piston elastomeric accumulator

#79
20160123785
2016-05-05

Measurement system

#80
20160123356
2016-05-05

Ultrasonic displacement measurement system and method for ultrasonic displacement measurement

#81
20150322972
2015-11-12

Gas handling method for dual bottle subsea accumulators

#82
20150322971
2015-11-12

Separating device for fluid media

#83
20150275931
2015-10-01

Turbine valve actuator

#84
20150247510
2015-09-03

Antenna assembly for piston accumulators

#85
20150233398
2015-08-20

Measurement system

#86
20150217747
2015-08-06

System and method of determining accumulator status

#87
20150204356
2015-07-23

Hydrostatic drive system

#88
20150184990
2015-07-02

System and method of manufacture for a linear position sensor

#89
20150152889
2015-06-04

System for improving the energy efficiency in hydraulic systems

#90
20150101822
2015-04-16

Subsea differential-area accumulator

#91
20140325974
2014-11-06

Hydraulic hybrid system for rotatory applications

#92
20140318115
2014-10-30

System for improving the energy efficiency in hydraulic systems, piston accumulator and pressure accumulator provided for such a system

#93
20140314595
2014-10-23

Reservoir vent and thermal stabilization orifice

#94
20140311577
2014-10-23

Self replenishing accumulator

#95
20140290972
2014-10-02

Accumulator

#96
20140219848
2014-08-07

Hydraulic motor-pump with fixed or variable displacement

#97
20140102089
2014-04-17

Valve of a storage device having a spring element

#98
20140047973
2014-02-20

Hydraulic device, in particular low-pressure accumulator with a closure element

#99
20130340871
2013-12-26

Pressure accumulator

#100
20130340421
2013-12-26

Device for transferring a hydraulic working pressure in a pressure fluid for actuating hydraulic units of deep-sea systems

#101
20130262010
2013-10-03

Position determination apparatus

#102
20130240068
2013-09-19

Compressed air energy storage

#103
20130228579
2013-09-05

EXPANSION TANK WITH A PISTON

#104
20130179046
2013-07-11

Method and system for determining an accumulator pre-charge pressure in a fluid circuit

#105
20130153073
2013-06-20

Distributed piston elastomeric accumulator

#106
20130092273
2013-04-18

Device for storing hydraulic fluid

#107
20130082054
2013-04-04

Safety device against excess temperature

#108
20130074967
2013-03-28

Hydraulic accumulator

#109
20130062069
2013-03-14

ACCUMULATOR HAVING OPERATING FLUID VOLUME INDEPENDENT OF EXTERNAL HYDROSTATIC PRESSURE

#110
20130056103
2013-03-07

Valve array

#111
20130048126
2013-02-28

Piston accumulator

#112
20120324873
2012-12-27

Automatic transmission hydraulic accumulator

#113
20120308404
2012-12-06

Hydrostatic hybrid drive system

#114
20120304953
2012-12-06

Switchable pressure supply device

#115
20120266590
2012-10-25

BROAD PRESSURE AND FREQUENCY RANGE ACCUMULATOR

#116
20120260794
2012-10-18

Passive piston unit

#117
20120234271
2012-09-20

Pressure storage unit for a camshaft and piston for a pressure storage unit

#118
20120216900
2012-08-30

Integrated hydraulic accumulator arrangement

#119
20120199231
2012-08-09

VOLUME ACCUMULATOR

#120
20120199230
2012-08-09

Volume accumulator

#121
20120186653
2012-07-26

Accumulator reservoir venting

#122
20120167704
2012-07-05

Device for the pulsed release of an amount of fluid which can be stored in an accumulator housing

#123
20120085451
2012-04-12

Hydraulic accumulator

#124
20120085450
2012-04-12

Accumulator assembly

#125
20120067446
2012-03-22

Ultra lightweight and compact accumulator

#126
20120042644
2012-02-23

MOBILE HYDRAULIC SYSTEM

#127
20120000560
2012-01-05

Device for fluid power recuperation including a gas receiver having a plurality of cells

#128
20110308383
2011-12-22

PISTON ACCUMULATOR

#129
20110277863
2011-11-17

Low pressure accumulator for anti-lock brake system

#130
20110226371
2011-09-22

Accumulator assembly

#131
20110226346
2011-09-22

Accumulator with solenoid valve

#132
20110214743
2011-09-08

Method and a device for the cleaning of a piston-based hydraulic accumulator

#133
20110197658
2011-08-18

Accumulator piston position-measuring device

#134
20110147002
2011-06-23

Subsea differential-area accumulator

#135
20110139285
2011-06-16

Combination spring and gas filled accumulator

#136
20110088548
2011-04-21

Device for the pulsed release of an amount of fluid that is stored in a storage housing

#137
20110067565
2011-03-24

Method of using a band sensor for determining a position of a component inside a housing

#138
20100326063
2010-12-30

Methods and apparatus to charge accumulator apparatus

#139
20100313560
2010-12-16

Hydraulic pressure apparatus and brake pressure control apparatus using the same

#140
20100307233
2010-12-09

Hydraulic accumulator with position sensor

#141
20100226806
2010-09-09

Active electric accumulator

#142
20100155072
2010-06-24

Rechargeable subsea force generating device and method

#143
20100090381
2010-04-15

Hydropneumatic accumulator with a compressible regenerator

#144
20100050622
2010-03-04

Hydropneumatic accumulator with flexible porous filler

#145
20090293978
2009-12-03

Spring-loaded piston accumulator with locking function

#146
20090293977
2009-12-03

Spring-tensioned piston accumulator with detent function

#147
20090211239
2009-08-27

Pressure accumulator to establish sufficient power to handle and operate external equipment and use thereof

#148
20090205731
2009-08-20

Hydraulic accumulator

#149
20090126816
2009-05-21

Lightweight high pressure repairable piston tie rod composite accumulator

#150
20090126815
2009-05-21

Lightweight high pressure repairable piston composite accumulator with slip flange

#151
20090101222
2009-04-23

Pressure accumulator, especially pulsation damper

#152
20090064674
2009-03-12

Accumulator

#153
20080308168
2008-12-18

Compact hydraulic accumulator

#154
20080251980
2008-10-16

Depth compensated subsea passive heave compensator

#155
20080230336
2008-09-25

Method for arranging a separating piston in a cavity and a device with such a separating piston

#156
20080104951
2008-05-08

Subsea pressure accumulator systems

#157
20070289437
2007-12-20

Adjustable hydraulic support cylinder

#158
20070163251
2007-07-19

Hydraulic system

#159
20070026269
2007-02-01

Relief valve, method of manufacturing relief valve, and fuel cell

#160
20060207246
2006-09-21

Hydraulic cylinder with integrated accumulator

#161
20060124790
2006-06-15

Accumulator

#162
20050275280
2005-12-15

Fluid power accumulator using adsorption

#163
20050224122
2005-10-13

Hydraulic accumulator

#164
20050166984
2005-08-04

Fluid accumulator

#165
20050121974
2005-06-09

Method and device for monitoring a brake system

#166
20050098326
2005-05-12

Hydraulic circuit for hydraulic cylinder

#167
20050086934
2005-04-28

Hydraulic cylinder

#168
20050072397
2005-04-07

Control device for at least one consumer, such as a camshaft adjuster, automatic transmission and the like, of motor vehicles

#169
20050023390
2005-02-03

Vertical roller mill with improved hydro-pneumatic loading system

#170
16556487
2020-04-28

Accumulator piston for use in vehicle transmission system

#171
15290202
2018-02-06

Leak-free piston style accumulator