Patents-Review.com
ClassID:

143195 ⎘

F04B53/108 - CPC Classification

Classification description:

Component parts, details or accessories not provided for in, or of interest apart from, groups  -  or  - ; Valves; Arrangement of valves Valves characterised by the material

Sub-classes:
Recent Application in this class:
#1
20240254979
2024-08-01

MULTI-PIECE FLUID END

 #2
20240141887
2024-05-02

VALVE COMPONENT

 #3
20240068468
2024-02-29

VALVE COMPONENT

 #4
20240003345
2024-01-04

LINEAR COMPRESSOR DISCHARGE VALVES

 #5
20230366395
2023-11-16

HIGH PRESSURE RECIPROCATING PUMP

 #6
20220307494
2022-09-29

Spherical pump valve made of specific materials

 #7
20220275798
2022-09-01

A Diaphragm Pump

 #8
20220166366
2022-05-26

Feature set and methods for a digital positioner

 #9
20220056905
2022-02-24

Pump for spraying liquid

 #10
20210367548
2021-11-25

Feature set and methods for a digital positioner

 #11
20210180589
2021-06-17

Piston pump

 #12
20210131420
2021-05-06

Automatic double-acting valve and pump equipped with said valve

 #13
20210095650
2021-04-01

Multi-Piece Fluid End

 #14
20210048020
2021-02-18

Multi-Part Valve Assembly

 #15
20210033087
2021-02-04

Proportional spool valve for adjusting the displaced volume of a displacement pump, assembly method and system

 #16
20200332792
2020-10-22

FRAC PUMP VALVE ASSEMBLY

 #17
20200232450
2020-07-23

Multi-Piece Fluid End

 #18
20190346052
2019-11-14

Portable inflation device

 #19
20190145396
2019-05-16

Valve having a first and second obstruction confining the valve from leaving a confining region

 #20
20190136842
2019-05-09

Multi-Piece Fluid End

 #21
20190120389
2019-04-25

Fluid End Valve With Dual Inserts

 #22
20180372077
2018-12-27

Device for choking a fluid flow and corresponding piston pump for delivering fluids

 #23
20180298893
2018-10-18

Frac pump valve assembly

 #24
20180003164
2018-01-04

Double-chamber piston pump for the distribution of fluid products

 #25
20170356440
2017-12-14

Multi-part valve assembly

 #26
20170198691
2017-07-13

PUMP NOZZLE

 #27
20170087783
2017-03-30

Device for sealing and inflating inflatable objects

 #28
20170051734
2017-02-23

AIR OPERATED DOUBLE DIAPHRAGM PUMP WITH DIFFERENTIATED CHECK VALVE SIZING

 #29
20170037847
2017-02-09

Multi-Part Valve Assembly

 #30
20170030350
2017-02-02

Poppet Valve Assembly, System, and Apparatus for Use in High Speed Compressor Applications

 #31
20170002808
2017-01-05

COMPRESSOR

 #32
20160309259
2016-10-20

Electrically conductive membrane pump system

 #33
20160131121
2016-05-12

Device for choking a fluid flow and corresponding piston pump for delivering fluids

 #34
20130251565
2013-09-26

Poppet Valve Assembly, System, and Apparatus for Use in High Speed Compressor Applications

 #35
20130240773
2013-09-19

Valve of a piston pump with a closing body

 #36
20130014834
2013-01-17

Drainage device for closed chamber containing liquid

 #37
20120308420
2012-12-06

Air motor having ceramic valves

 #38
20120294745
2012-11-22

Air motor having a modular add on regulator

 #39
20120294744
2012-11-22

Air motor having drop tube with knuckle ends

 #40
20110211974
2011-09-01

Curved pliant film valves

 #41
20100215522
2010-08-26

Check valve, fluid device, and pump

 #42
20090039111
2009-02-12

Foam pump

 #43
20050031476
2005-02-10

Single-step or muti-step piston compressor

 #44
16997631
2022-07-12

Composite valve seat system and method

 #45
16746519
2020-09-15

Composite valve seat system and method