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ClassID:

143208 ⎘

F04B53/125 - CPC Classification

Classification description:

Component parts, details or accessories not provided for in, or of interest apart from, groups  -  or  - ; Valves; Arrangement of valves arranged in or on pistons Reciprocating valves

Sub-classes:
Recent Application in this class:
#1
20260139667
2026-05-21

FRACTURING PUMP ARRANGEMENT USING A PLUNGER WITH AN INTERNAL FLUID PASSAGE

 #2
20250290505
2025-09-18

FRACTURING PUMP ARRANGEMENT USING A PLUNGER WITH AN INTERNAL FLUID PASSAGE

 #3
20240295217
2024-09-05

TORQUE CONVERTER CLUTCH APPLY SWITCH VALVE WITH INTERNAL LIMIT VALVE

 #4
20240077066
2024-03-07

Pump Device

 #5
20230400017
2023-12-14

Pump device

 #6
20230184234
2023-06-15

Continuous magnetic positive displacement pump

 #7
20220243724
2022-08-04

Fluid splitter in a fluid end or plunger pump

 #8
20220235760
2022-07-28

High-pressure pre-compression pump

 #9
20210180589
2021-06-17

Piston pump

 #10
20210033084
2021-02-04

Cylinder piston for an air compressor

 #11
20190376613
2019-12-12

Directly-controlled hydraulic directional valve

 #12
20190153830
2019-05-23

Earphone testing

 #13
20190063429
2019-02-28

Mechanically actuated traveling valve

 #14
20190010934
2019-01-10

Volumetric pump

 #15
20180340402
2018-11-29

Downhole pump with traveling valve and pilot

 #16
20180298722
2018-10-18

Frac pump seat assembly

 #17
20180274535
2018-09-27

HOLLOW PISTON PUMP

 #18
20180198358
2018-07-12

Moveable core-type reciprocating motor and reciprocating compressor having a moveable core-type reciprocating motor

 #19
20180198357
2018-07-12

Moveable core-type reciprocating motor and reciprocating compressor having a moveable core-type reciprocating motor

 #20
20180198337
2018-07-12

Moving core-type reciprocating motor and reciprocating compressor having the same

 #21
20180135591
2018-05-17

Wave energy converter with a differential cylinder

 #22
20180031179
2018-02-01

Pump provided with a reservoir of a lubricant

 #23
20170268491
2017-09-21

Fluid pump

 #24
20170096884
2017-04-06

Downhole pump with controlled traveling valve

 #25
20160084049
2016-03-24

Mechanically actuated traveling valve

 #26
20160010640
2016-01-14

Pressure relief mechanism for linear actuator well pump

 #27
20150375722
2015-12-31

Valve of a piston pump having a two-part closing body

 #28
20150316012
2015-11-05

PUMP UNIT

 #29
20150110657
2015-04-23

Adjusting device for an adjusting piston of a variable clearance space of a reciprocating compressor

 #30
20130272908
2013-10-17

Electromagnetic pump

 #31
20130045123
2013-02-21

Internal bellows pump fluid path

 #32
20120042773
2012-02-23

Pump Piston Device

 #33
20110239857
2011-10-06

Piston pump

 #34
20100232994
2010-09-16

Piston pump for delivering a fluid, and associated brake system

 #35
20100209275
2010-08-19

Hydraulic cylinder having piston-mounted bypass valve

 #36
20100166587
2010-07-01

GRAVITY-ASSISTED FLUID PUMP

 #37
20070095938
2007-05-03

Airless spray pump system and method for spraying a binder solution with suspended particles

 #38
20060285987
2006-12-21

Device for Producing High Pressure in a Fluid in Miniature

 #39
20050252990
2005-11-17

Device for producing high pressure in a fluid in miniature

 #40
15660668
2018-11-20

Superimposed standing valve