Patents-Review.com
ClassID:

142766 ⎘

F04B11/0075 - CPC Classification

Classification description:

Equalisation of pulses, e.g. by use of air vessels; Counteracting cavitation using two or more pumping pistons connected in series

Sub-classes:
Recent Application in this class:
#1
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Pumping systems

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Hydraulic fracturing pumps to enhance flow of fracturing fluid into wellheads and related methods

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Hydraulic fracturing pumps to enhance flow of fracturing fluid into wellheads and related methods

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2020-06-11

Liquid delivery device

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2020-01-30

Liquid delivery device and fluid chromatograph

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20190285064
2019-09-19

Tube pump system and method for controlling the tube pump system

 #8
20180245581
2018-08-30

Liquid delivery device

 #9
20170096987
2017-04-06

Fuel pump

 #10
20160208898
2016-07-21

Hydraulic transmission

 #11
20160153433
2016-06-02

Tri-chamber nutating pump

 #12
20130048095
2013-02-28

Automated conversion between SFC and HPLC

 #13
20120282118
2012-11-08

Reciprocation pump and a dialysis apparatus equipped with the reciprocation pump

 #14
20120207629
2012-08-16

Air compressor and piston for air compressor

 #15
20110042283
2011-02-24

Liquid delivery device, liquid chromatograph, and method for operation of liquid delivery device

 #16
20100299079
2010-11-25

Serial type pump comprising a heat exchanger

 #17
20100252502
2010-10-07

HPLC-system with variable flow rate

 #18
20100202897
2010-08-12

HIGH PRESSURE PUMP CONTROL

 #19
20100189574
2010-07-29

HIGH PRESSURE PUMP CONTROL

 #20
20100143161
2010-06-10

Quad chamber mixing pump

 #21
20100040483
2010-02-18

Compressible fluid pumping system for dynamically compensating compressible fluids over large pressure ranges

 #22
20100008803
2010-01-14

HIGH-PRESSURE SMALL VOLUME PUMP

 #23
20090220358
2009-09-03

UNEQUAL LENGTH ALTERNATING HYDRAULIC CYLINDER DRIVE SYSTEM FOR CONTINUOUS MATERIAL OUTPUT FLOW WITH EQUAL MATERIAL OUTPUT PRESSURE

 #24
20090193879
2009-08-06

Solvent delivery device and analytical system

 #25
20090057227
2009-03-05

Liquid delivery device, liquid chromatograph, and method for operation of liquid delivery device

 #26
20080310969
2008-12-18

Dual chamber mixing pump

 #27
20080206067
2008-08-28

High pressure pump control

 #28
20080101970
2008-05-01

Pumping apparatus having a varying phase relationship between reciprocating piston motions

 #29
20070196223
2007-08-23

Nutating pump with reduced pulsations in output flow

 #30
20070065304
2007-03-22

Pump assembly, suppression apparatus for use with a pump, and method of controlling a pump assembly

 #31
20060174697
2006-08-10

Leakage checking and calibrating of a liquid delivery system

 #32
20050232792
2005-10-20

High-pressure small volume pump

 #33
20050084386
2005-04-21

Gradient liquid feed pump system, and liquid chromatograph

 #34
20050074364
2005-04-07

Sheath flow forming device and sample analyzer provided with same