ClassID:

143061

F04B43/1136 - CPC Classification

Classification description:

Machines, pumps, or pumping installations having flexible working members having tubular flexible members; Pumps having fluid drive the actuating fluid being controlled by at least one valve with two or more pumping chambers in parallel

Recent Application in this class:
#1
20250230810
2025-07-17

EXPANDABLE, INNER LINER PUMP

#2
20250223955
2025-07-10

BELLOWS PUMP DEVICE

#3
20240301822
2024-09-12

Air compression system, requiring on mechanical compressor, electricity, or other external energy to operate

#4
20230332593
2023-10-19

Expandable, inner liner pump

#5
20220236093
2022-07-28

Liquid feeding pump, dispensing system and washing device

#6
20220154712
2022-05-19

Vacuum pump

#7
20210140294
2021-05-13

Method, system and use of controlling working range of a pump bellows

#8
20200340470
2020-10-29

Pump assembly

#9
20200217186
2020-07-09

Dual-pressure boosting liquid partition device, system , fleet and use

#10
20200149523
2020-05-14

Positive displacement pump

#11
20200025191
2020-01-23

Electrochemically actuated pump

#12
20190331090
2019-10-31

Apparatuses, methods and systems for harnessing the energy of fluid flow to generate electricity or pump fluid

#13
20190195217
2019-06-27

Vacuum pump

#14
20180073496
2018-03-15

Duplex reciprocating pump

#15
20180051692
2018-02-22

Volume pump including a bellows and a suction valve and a discharge valve wherein the valves comprise a valve seat and a valve body and wherein a fixed section of the valve body includes a communicating flow path

#16
20170218946
2017-08-03

Bellows pump device

#17
20170009761
2017-01-12

Hydraulically driven bellows pump

#18
20160333872
2016-11-17

Electrochemically actuated pump

#19
20150233366
2015-08-20

Fluid-driven pump having a modular insert and related methods

#20
20150093257
2015-04-02

Peristaltic submersible pump

#21
20140010689
2014-01-09

Bellows pump

#22
20130280102
2013-10-24

Modular fluid-driven diaphragm pump and related methods

#23
20130058802
2013-03-07

Low ice pneumatic motor exhaust muffler

#24
20110020150
2011-01-27

Hydraulically driven machine improvement

#25
20100278669
2010-11-04

Pump system for conveying a first fluid using a second fluid

#26
20100272581
2010-10-28

Fluid operated pump

#27
20100178184
2010-07-15

Bellows plungers having one or more helically extending features, pumps including such bellows plungers, and related methods

#28
20100178182
2010-07-15

HELICAL BELLOWS, PUMP INCLUDING SAME AND METHOD OF BELLOWS FABRICATION

#29
20100119392
2010-05-13

Reciprocating pump

#30
20090324431
2009-12-31

Apparatus for pumping a fluid

#31
20080226466
2008-09-18

Hydraulically driven multicylinder pumping machine

#32
20070201993
2007-08-30

DISPOSABLE PUMPING APPARATUS BASED ON FLEXIBLE VESSELS IN PRESSURIZED CONTAINERS

#33
20060153703
2006-07-13

Fluid operated pump

#34
20050191195
2005-09-01

Dual reciprocating bellows pump with interlock shaft means