ClassID:

142773

F04B15/023 - CPC Classification

Classification description:

Pumps adapted to handle specific fluids, e.g. by selection of specific materials for pumps or pump parts the fluids being viscous or non-homogeneous supply of fluid to the pump by gravity through a hopper, e.g. without intake valve

Recent Application in this class:
#1
20260117757
2026-04-30

THICK MATERIAL PUMP AND METHOD FOR OPERATING A THICK MATERIAL PUMP

#2
20230030715
2023-02-02

Vacuum excavation apparatus having a deceleration vessel and methods for excavating a site

#3
20220275793
2022-09-01

SWITCHING DEVICE FOR A CONCRETE PUMP

#4
20220213888
2022-07-07

Computer-aided method and device for optimized control of the delivery rate of a concrete pump or the like

#5
20220163022
2022-05-26

Mobile thick matter pump

#6
20210332554
2021-10-28

HYDRO EXCAVATION VACUUM APPARATUS AND FLUID STORAGE AND SUPPLY SYSTEMS THEREOF

#7
20210310482
2021-10-07

System for monitoring concrete pumping systems

#8
20210156370
2021-05-27

Auto-reversing driveshaft system and method

#9
20200182230
2020-06-11

Thick Stock Valve

#10
20200164389
2020-05-28

Hydro excavation vacuum apparatus having deceleration vessels and methods for hydro excavating a site

#11
20200149517
2020-05-14

Concrete pump system and method

#12
20200149247
2020-05-14

Airlocks for conveying material, hydro excavation vacuum apparatus having airlocks, and methods for hydro excavating a site

#13
20200149246
2020-05-14

Hydro excavation vacuum apparatus having an adjustment system for adjusting a dewatering system screen

#14
20200149245
2020-05-14

Hydro excavation vacuum apparatus

#15
20190293060
2019-09-26

Thick material pump

#16
20190264669
2019-08-29

High-viscosity pumping system

#17
20190017243
2019-01-17

Hydro excavation vacuum apparatus and fluid storage and supply systems thereof

#18
20190015766
2019-01-17

Cyclonic separation systems and hydro excavation vacuum apparatus incorporating same

#19
20180335025
2018-11-22

Pickup truck hydraulic concrete pump

#20
20180291881
2018-10-11

Continuous Flow Pumping System

#21
20180238315
2018-08-23

Concrete pump system and method

#22
20180207660
2018-07-26

Material sprayer having sliding pump mounting

#23
20180017048
2018-01-18

Concrete pump system and method

#24
20160348655
2016-12-01

SWITCHOVER DEVICE FOR A THICK-MATTER PUMP

#25
20160305411
2016-10-20

Concrete pumping system having safety recirculation and method features

#26
20160281694
2016-09-29

System for feeding and pumping of less pumpable material in a conduit line

#27
20150283525
2015-10-08

Container for accommodating high-viscosity materials

#28
20150198181
2015-07-16

Concrete pump system and method

#29
20140314585
2014-10-23

DETECTING DEVICE AND PUMPING EQUIPMENT FOR CONCRETE

#30
20140205474
2014-07-24

Hydrogen storage container

#31
20140203011
2014-07-24

System and method for induction heating a helical rotor using a coil

#32
20140003968
2014-01-02

Piston-type transfer pump device, method for transferring particulate solid matter using such a device, application of the method to the feeding of a gasification reactor

#33
20130248026
2013-09-26

Pump system for food machine

#34
20130129534
2013-05-23

Pumping unit for a machine to distribute concrete

#35
20130034457
2013-02-07

Distributing valve for concrete pump and the concrete pump

#36
20120326355
2012-12-27

Method for Producing a Sulfur Concrete Substance

#37
20120318390
2012-12-20

DISTRIBUTION VALVE FOR CONCRETE PUMP, CONCRETE PUMP AND CONTROL METHOD THEREOF AND CONCRETE PUMP TRUCK

#38
20120282127
2012-11-08

MATERIAL MOVING APPARATUS

#39
20120189475
2012-07-26

Device and method for pumping flowable masses

#40
20120118822
2012-05-17

Reducing emissions of VOCs from low-pressure storage tanks

#41
20110318192
2011-12-29

Device for delivering thick matter

#42
20110274572
2011-11-10

Method for feeding pasty masses and pump device for feeding pasty masses

#43
20110186566
2011-08-04

System and method for induction heating a helical rotor using a coil

#44
20110168706
2011-07-14

Material feed container for a thick-matter pump

#45
20110012289
2011-01-20

Apparatus for producing a sulfur concrete substance

#46
20100327021
2010-12-30

DOSAGE AND TRANSFER VALVE, DOSING PUMP COMPRISING SUCH A PIVOTING VALVE, AND INSTALLATION FOR PRODUCING DAIRY OR CHEESE PRODUCTS, COMPRISING AT LEAST ONE SUCH PUMP

#47
20100278666
2010-11-04

HIGH SOLIDS MATERIAL MOVING APPARATUS

#48
20100260625
2010-10-14

Concrete pump

#49
20100260615
2010-10-14

Multi-pump sequencing

#50
20100045064
2010-02-25

Portable work machine for pumping concrete or thick liquids and having a carrying framework and a covering hood

#51
20090252628
2009-10-08

Sealing Rings for Abrasive Slurry Pumps

#52
20090252620
2009-10-08

Reinforced smart mud pump

#53
20090220358
2009-09-03

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

#54
20090211435
2009-08-27

Method and device for suppressing vibration of boom of concrete pump truck

#55
20090065074
2009-03-12

Distribution valve for concrete transport pump

#56
20080219870
2008-09-11

Device for delivering thick matter

#57
20080175725
2008-07-24

Rotary piston pump

#58
20080107553
2008-05-08

Method of pumping drill cuttings and pump for moving drill cuttings

#59
20080038131
2008-02-14

Piston pump for thick materials

#60
20070280836
2007-12-06

High Pressure Pumping Apparatus

#61
20070274850
2007-11-29

Drive Device for a Dual-Cylinder Slurry Pump and Method for Operating Said Pump

#62
20070246897
2007-10-25

Sealing rings for abrasive slurry pumps

#63
20070196225
2007-08-23

Material feed container for a thick-matter pump

#64
20070196224
2007-08-23

Reciprocating slurry pump with a continuous feed rate

#65
20070196219
2007-08-23

Device and method for controlling a two cylinder thick matter pump

#66
20060275139
2006-12-07

Method of controlling a pump apparatus for conveying viscous material, and control system for such a pump apparatus

#67
20060245942
2006-11-02

Device and method for controlling a thick matter pump

#68
20060243747
2006-11-02

Hose pump feeding device

#69
20060193738
2006-08-31

Pump apparatus and method for continuously conveying a viscous material

#70
20060124361
2006-06-15

Apparatus for pumping drill cuttings and dual cylinder positive displacement pump for moving drill cuttings and method of use

#71
20060120906
2006-06-08

Structure and the manufacturing method for friction parts on concrete pump

#72
20060045759
2006-03-02

Combination loading and vacuum hopper for piston pump

#73
20050265871
2005-12-01

Concrete pump with pivotable hopper asssembly

#74
20050232069
2005-10-20

Concrete-mortar transfer system of concrete pump car

#75
15471959
2018-06-19

Continuous flow pumping system