ClassID:

142772

F04B15/02 - page 2 - 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

Recent Application in this class:
#301
20200191130
2020-06-18

METHOD AND APPARATUS FOR PREDICTING MAINTENANCE NEEDS OF A PUMP BASED AT LEAST PARTLY ON PUMP PERFORMANCE ANALYSIS

#302
20200173431
2020-06-04

Printed circuit board module

#303
20200166026
2020-05-28

Direct drive pump assemblies

#304
20200164389
2020-05-28

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

#305
20200158105
2020-05-21

Diaphragm pump utilizing duckbill valves, multi-directional ports and flexible electrical connectivity

#306
20200158097
2020-05-21

CONCRETE PUMP ASSEMBLY

#307
20200149517
2020-05-14

Concrete pump system and method

#308
20200149247
2020-05-14

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

#309
20200149246
2020-05-14

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

#310
20200149245
2020-05-14

Hydro excavation vacuum apparatus

#311
20200141396
2020-05-07

PUMP ASSEMBLY FOR PUMPING VISCOUS MEDIA, DEVICE COMPRISING SAME, METHOD FOR PRODUCING SURFACE COATING AGENTS, AND USE OF A PUMP ASSEMBLY

#312
20200132058
2020-04-30

Pressure transfer device and associated system, fleet and use, for pumping high volumes of fluids with particles at high pressures

#313
20200123628
2020-04-23

HIGH STRENGTH AND TOUGHNESS STEEL COMPOSITION AND MACHINE PARTS MADE THEREWITH

#314
20200116140
2020-04-16

Supercritical water used fuel oil purification apparatus and process

#315
20200116137
2020-04-16

MOBILE THICK MATTERS PUMP

#316
20200115986
2020-04-16

Hydraulic fracturing system, apparatus, and method

#317
20200109617
2020-04-09

Modular switchgear system and power distribution for electric oilfield equipment

#318
20200109616
2020-04-09

Electric powered hydraulic fracturing pump system with single electric powered multi-plunger pump fracturing trailers, filtration units, and slide out platform

#319
20200102951
2020-04-02

Displacement pump mounting and retention

#320
20200088176
2020-03-19

Gas operated fluid pump with input and output gas valves

#321
20200086039
2020-03-19

Hydraulically actuated pump for fluid administration

#322
20200063726
2020-02-27

DEVICE FOR PUMPING VISCOUS MATERIAL

#323
20200049136
2020-02-13

Dual turbine direct drive pump

#324
20200018299
2020-01-16

Viscous material supply device, cover sheet used in viscous material supply device, viscous material supply method, and method for attaching cover sheet

#325
20200003205
2020-01-02

FRACTURING PUMP SYSTEMS HAVING A HYDRAULICALLY-DRIVEN ASSEMBLY APPLYING VARIABLE AMOUNTS OF PRESSURE ON PACKING

#326
20190367352
2019-12-05

Device for conveying viscous material

#327
20190366458
2019-12-05

Device adapted to dosing pasty substances

#328
20190360483
2019-11-28

Fluid End Plug With Bore Clearance

#329
20190345921
2019-11-14

Pressure pump connecting rod monitoring

#330
20190345920
2019-11-14

Modular pumping system

#331
20190331110
2019-10-31

Well service pump system structural joint housing having a first connector and a second connector each including one or more lands and grooves that are configured to mate with corresponding lands and grooves in an end cylinder housing and a ram cylinder housing

#332
20190330965
2019-10-31

Shape Memory Alloy Seal Bladder Clamp Rings

#333
20190322521
2019-10-24

Device and method for conveying viscous material

#334
20190314858
2019-10-17

Fluid pressure-feed device

#335
20190309737
2019-10-10

Viscous material pump with adjustable limitation of the delivery pressure

#336
20190301615
2019-10-03

Packing stack carrier for paint and other fluid pumps

#337
20190299378
2019-10-03

Packing insertion tool for paint and other fluid pumps

#338
20190293092
2019-09-26

High-density powder pump

#339
20190293060
2019-09-26

Thick material pump

#340
20190292734
2019-09-26

METHOD AND APPARATUS FOR AVOIDING OR AMELIORATING CAVITATION IN AN ASPHALT CEMENT FLUID CIRCUIT

#341
20190278306
2019-09-12

Pressure exchanger manifold resonance reduction

#342
20190277110
2019-09-12

Pressure exchanger wear prevention

#343
20190271331
2019-09-05

Split stream operations with pressure exchangers

#344
20190271305
2019-09-05

Multiple-pump valve monitoring system

#345
20190264682
2019-08-29

Valve seats and valve assemblies for fluid end applications

#346
20190264669
2019-08-29

High-viscosity pumping system

#347
20190264401
2019-08-29

Ground striper pump piston having dual checks

#348
20190249754
2019-08-15

Multi-plunger pumps and associated drive systems

#349
20190249652
2019-08-15

Configuration and operation of an optimized pumping system

#350
20190247957
2019-08-15

Improving service life of pump fluid ends

#351
20190234171
2019-08-01

Hydraulic fracturing system, apparatus, and method

#352
20190226476
2019-07-25

Valve seats and valve assemblies for fluid end applications

#353
20190226469
2019-07-25

Pump membrane for diaphragm pump

#354
20190224700
2019-07-25

Spray system pressure differential monitoring

#355
20190217323
2019-07-18

Spray system pump wash sequence

#356
20190212239
2019-07-11

Systems and methods for automatically evaluating slurry properties

#357
20190203705
2019-07-04

POLYMERIC MATERIALS

#358
20190203702
2019-07-04

CYLINDER PUMP SYSTEMS AND METHODS FOR PUMPING AND MEASURING FLUIDS

#359
20190195215
2019-06-27

Sewage basin pump control support

#360
20190184615
2019-06-20

Conveying device for conveying a viscous material from a container, and method for operating the conveying device

#361
20190178235
2019-06-13

Hybrid drive systems for well stimulation operations

#362
20190178234
2019-06-13

Cavitation avoidance system

#363
20190170295
2019-06-06

Lubricating-grease pump and method for recovery of leakage grease of a lubricating-grease pump

#364
20190154035
2019-05-23

Fluid end for a piston pump functioning as a mud pump

#365
20190154020
2019-05-23

Mobile hydraulic fracturing system and related methods

#366
20190154019
2019-05-23

COATING AGENT PUMP

#367
20190145257
2019-05-16

Hydraulic and control system for resin injection

#368
20190128245
2019-05-02

COMPRESSOR

#369
20190118201
2019-04-25

Pump changeover algorithm for spray system

#370
20190093433
2019-03-28

Integration of mud and cementing equipment systems

#371
20190082712
2019-03-21

System for conveying and dispensing heated food material

#372
20190072118
2019-03-07

Piston limit sensing for fluid application

#373
20190063429
2019-02-28

Mechanically actuated traveling valve

#374
20190063419
2019-02-28

Diaphragm pump comprising dust suction from below

#375
20190055937
2019-02-21

Accurate flow-in measurement by triplex pump and continuous verification

#376
20190055826
2019-02-21

REMOTE MONITORING FOR HYDRAULIC FRACTURING EQUIPMENT

#377
20190049052
2019-02-14

FLUID LINER WEAR INDICATOR FOR SUCTION MANIFOLD OF RECIPROCATING PUMP ASSEMBLY

#378
20190040858
2019-02-07

Submersible pumping apparatus, comprising linear electric motor and double action pump

#379
20190024822
2019-01-24

DISPOSABLE DIAPHRAGM VALVE

#380
20190017243
2019-01-17

Hydro excavation vacuum apparatus and fluid storage and supply systems thereof

#381
20190015766
2019-01-17

Cyclonic separation systems and hydro excavation vacuum apparatus incorporating same

#382
20180370075
2018-12-27

Apparatus for the production of a mixture of at least one gas and at least one liquid plastic component

#383
20180363642
2018-12-20

Fluid end assembly of a reciprocating pump

#384
20180363638
2018-12-20

System and method for precision fluid delivery

#385
20180355862
2018-12-13

Predicting mud pump expendable life based on PSI-miles

#386
20180355449
2018-12-13

High toughness martensitic stainless steel and reciprocating pump manufactured therewith

#387
20180335030
2018-11-22

FOUNTAIN PUMP BRACKET

#388
20180335025
2018-11-22

Pickup truck hydraulic concrete pump

#389
20180333658
2018-11-22

Mud pump and vacuum gas extraction system

#390
20180298895
2018-10-18

Piston ball guide for a ball pump

#391
20180298887
2018-10-18

Hydraulically-driven double-acting mud pump

#392
20180291891
2018-10-11

Ball cage with directed flow paths for a ball pump

#393
20180291881
2018-10-11

Continuous Flow Pumping System

#394
20180280840
2018-10-04

Method and Device for Separating Solids and Liquids using a Modified Pump

#395
20180238315
2018-08-23

Concrete pump system and method

#396
20180231003
2018-08-16

Method and system for injecting slurry using concentrated slurry pressurization

#397
20180215549
2018-08-02

System and method for peristaltic transport of material

#398
20180214899
2018-08-02

Dispensing pump with skirt spring

#399
20180187662
2018-07-05

Frac manifold and systems

#400
20180185872
2018-07-05

Remote adhesive monitoring system

#401
20180179249
2018-06-28

Method of making a hydrolyzed collagen gel

#402
20180156210
2018-06-07

Constant voltage power distribution system for use with an electric hydraulic fracturing system

#403
20180128251
2018-05-10

High pressure fluid system

#404
20180112507
2018-04-26

Remote monitoring for hydraulic fracturing equipment

#405
20180080444
2018-03-22

System for high pressure, high shear processing of fluids

#406
20180073501
2018-03-15

Negating check valve

#407
20180066638
2018-03-08

High pressure pump

#408
20180045186
2018-02-15

DUAL-CYLINDER PISTON PUMP

#409
20180043317
2018-02-15

Quick disconnect pump

#410
20180030966
2018-02-01

DEVICE OF GREASE GUN

#411
20180023575
2018-01-25

Methods, devices, and systems for controlling a valve

#412
20180017144
2018-01-18

Belt tightening mechanism for a fluid delivery system

#413
20180017048
2018-01-18

Concrete pump system and method

#414
20180010601
2018-01-11

Mud pump sealing assembly

#415
20180010404
2018-01-11

Self-aligning mud pump assembly

#416
20180003314
2018-01-04

Pump and a valve assembly therefor

#417
20180003171
2018-01-04

Method and system for minimizing vibration in a multi-pump arrangement

#418
20170370199
2017-12-28

Hydraulic fracturing system, apparatus, and method

#419
20170370172
2017-12-28

Adjustable fracturing system

#420
20170369258
2017-12-28

System and process for delivering building materials

#421
20170350377
2017-12-07

Pump capable of dispensing both a large volume and a small volume of colorant

#422
20170349426
2017-12-07

Control valve for pouring color paste in both large amount and small amount

#423
20170313296
2017-11-02

BRAKE FLUID FEEDING DEVICE

#424
20170306946
2017-10-26

Pressure-maintaining valve arrangement for a purge circuit of a closed hydraulic circuit

#425
20170260982
2017-09-14

System for pumping a fluid and method for its operation

#426
20170259225
2017-09-14

High-pressure fluid processing device configured for batch processing

#427
20170227001
2017-08-10

Fluid pump leakage diversion

#428
20170226999
2017-08-10

FLUSHABLE PUMP FLUID CHAMBER

#429
20170219107
2017-08-03

Cartridge style ball check for positive displacement pump

#430
20170204840
2017-07-20

Hydraulic pump system for handling a slurry medium

#431
20170199513
2017-07-13

Piston limit sensing and software control for fluid application

#432
20170198690
2017-07-13

Piston rod having cap recess

#433
20170198688
2017-07-13

Integrated pump guard and control interlock

#434
20170175734
2017-06-22

Bellows anti-rotation construction

#435
20170175727
2017-06-22

Bellows installation and retention method

#436
20170152851
2017-06-01

Systems and methods utilizing a grooveless fluid end for high pressure pumping

#437
20170138356
2017-05-18

Positive-displacement piston pump and rotary distribution means

#438
20170101986
2017-04-13

Device and method for damping pressure fluctuations in the delivery line of a thick-matter pump

#439
20170096885
2017-04-06

Remote monitoring for hydraulic fracturing equipment

#440
20170082194
2017-03-23

Plunger with ion nitriding treatment for a hydraulic fracturing pump and a method for making said plunger

#441
20170051846
2017-02-23

Disposable diaphragm valve

#442
20170051732
2017-02-23

Pump system and method of starting pump

#443
20170045042
2017-02-16

SUPERCRITICAL WATER USED FUEL OIL PURIFICATION APPARATUS AND PROCESS

#444
20170037882
2017-02-09

Control system for a hydraulic work machine

#445
20170035966
2017-02-09

Hydraulically actuated pump for fluid administration

#446
20170009928
2017-01-12

Pulsation damping system

#447
20160341347
2016-11-24

Manifold and methods of manufacturing same

#448
20160318053
2016-11-03

Dispensing pump with skirt spring

#449
20160281694
2016-09-29

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

#450
20160252184
2016-09-01

Dense phase pump with easily replaceable components

#451
20160233814
2016-08-11

Electric pump

#452
20160222985
2016-08-04

Method and system for injecting a process fluid using a high pressure drive fluid

#453
20160215774
2016-07-28

Economical High Pressure Wear Resistant Cylinder That Utilizes A High Pressure Field For Strength

#454
20160208786
2016-07-21

Pressurized fluid delivery system

#455
20160195076
2016-07-07

PROCESS AND UNIT FOR PUMPING FLAMMABLE PRODUCTS CAPABLE OF FORMING AN EXPLOSIVE ATMOSPHERE

#456
20160186743
2016-06-30

Pump rod and driving link with side-load reducing configuration

#457
20160169219
2016-06-16

Pumps, pump assemblies, and methods of pumping fluids

#458
20160167076
2016-06-16

Spray system pump wash sequence

#459
20160158784
2016-06-09

Pump changeover algorithm for spray system

#460
20160153441
2016-06-02

Spray system pressure differential monitoring

#461
20160153434
2016-06-02

PUMPING DEVICE AND METHOD FOR CONVEYING VISCOUS MEDIA, IN PARTICULAR ADHESIVES

#462
20160151798
2016-06-02

Proportioning cylinder for spray system

#463
20160146201
2016-05-26

Multi-point seal lubrication system

#464
20160138586
2016-05-19

FUEL PUMP

#465
20160115953
2016-04-28

High-pressure pump

#466
20160115952
2016-04-28

Pump, pump device, and liquid supply system

#467
20160097378
2016-04-07

HIGH-VISCOSITY LIQUID FEEDING BOOSTER PUMP

#468
20160084049
2016-03-24

Mechanically actuated traveling valve

#469
20160083187
2016-03-24

Solid particulate pump having flexible seal

#470
20160069343
2016-03-10

Sludge flow measuring system

#471
20160047369
2016-02-18

PUMING SYSTEM

#472
20160040659
2016-02-11

PUMP DEVICES FOR FEEDING PASTY MASSES

#473
20160017881
2016-01-21

Diaphragm pump

#474
20160003237
2016-01-07

PUMP DISCHARGE FLOW-RATE CONTROL DEVICE

#475
20150377229
2015-12-31

PUMP ASSEMBLY FOR PUMPING A FLUID LUBRICANT

#476
20150369190
2015-12-24

Piston fuel pump for an internal combustion engine

#477
20150362113
2015-12-17

Systems and methods utilizing a grooveless fluid end for high pressure pumping

#478
20150361968
2015-12-17

Hydraulic proportioning system with flow divider

#479
20150361745
2015-12-17

Positive Displacement Pump

#480
20150361741
2015-12-17

High Pressure Downhole Pump Assembly

#481
20150338027
2015-11-26

Slurry-transporting facility and slurry transportation control method

#482
20150330374
2015-11-19

THICK-MATTER PUMP FOR PRODUCING A CONTINUOUS THICK-MATTER FLOW AND METHOD FOR OPERATING A THICK-MATTER PUMP FOR PRODUCING A CONTINUOUS THICK-MATTER FLOW

#483
20150328400
2015-11-19

Hydraulically actuated pump for fluid administration

#484
20150308394
2015-10-29

Piston fuel pump for an internal combustion engine

#485
20150306783
2015-10-29

CHAIN SAW AND FLUID PUMP

#486
20150285243
2015-10-08

Hydraulic pumping assembly, system and method

#487
20150283525
2015-10-08

Container for accommodating high-viscosity materials

#488
20150260178
2015-09-17

PISTON MEMBRANE PUMP

#489
20150247497
2015-09-03

Waterproof pump enclosure and system including same

#490
20150240812
2015-08-27

METHOD FOR CONVEYING HYDRAULIC FLUID, AND ELECTROHYDRAULIC MOTOR-PUMP UNIT THEREFOR

#491
20150226211
2015-08-13

Four-Valve High Pressure Pump

#492
20150226190
2015-08-13

VARIABLE DISPLACEMENT PUMP REGULATOR

#493
20150219089
2015-08-06

Air operated pump

#494
20150211503
2015-07-30

DEVICE FOR THE DRIVE CONTROL OF A TWO-CYLINDER THICK MATTER PUMP

#495
20150198181
2015-07-16

Concrete pump system and method

#496
20150167652
2015-06-18

SUBMERSIBLE PUMPING SYSTEM AND METHOD

#497
20150159639
2015-06-11

Metering system and metering pump therefor

#498
20150158638
2015-06-11

Quarter turn adapter connective outlet fitting for liquid color dispensing

#499
20150139834
2015-05-21

Pump for metering and dispensing a liquid or viscous product

#500
20150132152
2015-05-14

Reinforced Smart Mud Pump

#501
20150098850
2015-04-09

Food dispenser and method for portioning and dispensing free-flowing foods

#502
20150096290
2015-04-09

Hydraulic system

#503
20150093259
2015-04-02

Pumping A Multiphase Fluid Using A Pneumatic Pump

#504
20150071802
2015-03-12

Device for dosing a fill product into a container to be filled

#505
20140356201
2014-12-04

Multiple port discharge manifold fluid end

#506
20140348677
2014-11-27

Positive Displacement Pump and Suction Valve Module Therefor

#507
20140322037
2014-10-30

Piston pump

#508
20140271126
2014-09-18

Wastewater sump assembly

#509
20140262531
2014-09-18

Hydraulic cushion

#510
20140232102
2014-08-21

GLASS PLATE FOR CONCRETE CONVEYING PUMP

#511
20140130887
2014-05-15

Manifold and methods of manufacturing same

#512
20140124050
2014-05-08

Pour spout adapter assembly for pumping system

#513
20140109763
2014-04-24

Control system for an air operated diaphragm pump

#514
20140083534
2014-03-27

Low turbulence valve

#515
20140056743
2014-02-27

MODULAR PUMP ASSEMBLY

#516
20140037466
2014-02-06

Diaphragm pump and method for delivering fine-grain powder with the aid of a diaphragm pump

#517
20140027246
2014-01-30

Segmented solid feed pump

#518
20140015685
2014-01-16

Engineering machine and stability control system and control method thereof

#519
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

#520
20130269803
2013-10-17

Fluid transfer device, ship including the same, and fluid for use in transfer device

#521
20130243610
2013-09-19

Lance pump having horizontally mounted stepper/servo motor

#522
20130240568
2013-09-19

MOLTEN WAX PUMPING DEVICE AND MOLTEN WAX DISPENSER USING SAME

#523
20130189122
2013-07-25

Device and system for monitoring a pneumatically actuated alternating linear displacement pump

#524
20130164446
2013-06-27

Liquid delivery system

#525
20130161409
2013-06-27

Power trigger sprayer

#526
20130139682
2013-06-06

Single Sided, Dual Plunger Pump

#527
20130129534
2013-05-23

Pumping unit for a machine to distribute concrete

#528
20130121848
2013-05-16

Lishanski's vibratory cavitation pump

#529
20130115115
2013-05-09

High pressure pumps for injecting cement mixtures

#530
20130039741
2013-02-14

Compression apparatus

#531
20130025706
2013-01-31

SYSTEM AND PROCESS FOR DELIVERING BUILDING MATERIALS

#532
20130011209
2013-01-10

Pipeline Conveyor Systems

#533
20130004341
2013-01-03

Concrete pumping structure and control method thereof

#534
20120318390
2012-12-20

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

#535
20120315167
2012-12-13

Quintuplex mud pump

#536
20120308403
2012-12-06

Motor control device

#537
20120279721
2012-11-08

High pressure stimulation pump

#538
20120272764
2012-11-01

Modular pump design

#539
20120257988
2012-10-11

Apparatus for mixing and pumping manure slurries

#540
20120251338
2012-10-04

Vibratory cavitation pump lishanski

#541
20120234652
2012-09-20

Segmented solid feed pump

#542
20120224909
2012-09-06

MECHANISM FOR EFICIENTLY SUPPLYING PAINT TO A ROLLER OR BRUSH

#543
20120216609
2012-08-30

Method for determining the delivery rate of a liquid conveying device

#544
20120210865
2012-08-23

Reciprocating pump flow control

#545
20120193445
2012-08-02

Container holder in a fluid delivery system

#546
20120189475
2012-07-26

Device and method for pumping flowable masses

#547
20120186518
2012-07-26

Rotary piston pump for metering a coating agent

#548
20120175386
2012-07-12

Magnetic drive for dispensing apparatus

#549
20120164013
2012-06-28

Positive-displacement pump including a pressure absorber

#550
20120164000
2012-06-28

HIGH PRESSURE SOLIDS PUMP

#551
20120145743
2012-06-14

Device and method for discharging constant amount of high-viscosity material

#552
20120141301
2012-06-07

METHOD AND APPARATUS FOR PREDICTING MAINTENANCE NEEDS OF A PUMP BASED AT LEAST PARTLY ON PUMP PERFORMANCE ANALYSIS

#553
20120132287
2012-05-31

Pump for conveying a medium and lubricating system containing the same

#554
20120076668
2012-03-29

Wellbore fluid removal systems and methods

#555
20120076666
2012-03-29

Method, device and means for driving a reciprocating linear motion double acting pump

#556
20120037726
2012-02-16

Wobble assembly for fluid pumping mechanism

#557
20120020818
2012-01-26

AIR COMPRESSOR STRUCTURE FOR PAINT SPRAYING

#558
20110293447
2011-12-01

Hydraulically actuated reciprocating pump

#559
20110286867
2011-11-24

Mud pump

#560
20110274572
2011-11-10

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

#561
20110253743
2011-10-20

Apparatus and System for Dispensing Liquids

#562
20110206547
2011-08-25

Sludge suction apparatus for offshore structure

#563
20110189030
2011-08-04

FLUID PUMP

#564
20110158836
2011-06-30

LIQUID PAINT PUMPING APPARATUS

#565
20110150675
2011-06-23

Viscous fluid pump and related methods

#566
20110058959
2011-03-10

Mud pump cylinder assembly and liner system

#567
20110047743
2011-03-03

FINE SOLIDS RECOVERY SYSTEM, METHOD AND PICK-UP WAND

#568
20110020157
2011-01-27

FEED PUMP AND SEALING ARRANGEMENT FOR SAME

#569
20100329905
2010-12-30

PERMANENT MAGNET DIRECT DRIVE MUD PUMP

#570
20100313996
2010-12-16

Hand held peristaltic pump for dispensing fluid from a rigid container

#571
20100278666
2010-11-04

HIGH SOLIDS MATERIAL MOVING APPARATUS

#572
20100266421
2010-10-21

Pump system

#573
20100263528
2010-10-21

Piston pump

#574
20100258592
2010-10-14

Magnetic drive for dispensing apparatus

#575
20100232996
2010-09-16

Piston Pump for Thick Substances

#576
20100224698
2010-09-09

Container holder in a fluid delivery system

#577
20100224269
2010-09-09

COUPLING MECHANISM IN A FLUID DELIVERY SYSTEM

#578
20100217191
2010-08-26

Hydraulically actuated pump for fluid administration

#579
20100208545
2010-08-19

HIGH-PRESSURE HOMOGENIZING APPARATUS

#580
20100196178
2010-08-05

Metering pump

#581
20100139928
2010-06-10

Replaceable sleeve for a cylinder liner

#582
20100119394
2010-05-13

Cylinder piston arrangement for a fluid pump or a fluid motor

#583
20100111714
2010-05-06

Diaphragm pumps and transporting drag reducers

#584
20100054974
2010-03-04

Valve cover assembly and method of using the same

#585
20100045064
2010-02-25

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

#586
20100043760
2010-02-25

Fuel pump

#587
20100038070
2010-02-18

Top suction fluid end

#588
20100034666
2010-02-11

Electronic camshaft motor control for piston pump

#589
20090285695
2009-11-19

Magnetic induction pump

#590
20090252620
2009-10-08

Reinforced smart mud pump

#591
20090198185
2009-08-06

Hydraulically actuated pump for long duration medicament administration

#592
20090185915
2009-07-23

Digital control device

#593
20090157005
2009-06-18

Hydraulically actuated pump for long duration medicament administration

#594
20090155091
2009-06-18

Ultrasonic waveguide pump and method of pumping liquid

#595
20090092510
2009-04-09

Quintuplex mud pump

#596
20090053072
2009-02-26

Integrated "One Pump" Control of Pumping Equipment

#597
20090047143
2009-02-19

Method and system for high viscosity pump

#598
20090008481
2009-01-08

Combined prime valve and electrical pressure control for paint spray pumps

#599
20080308178
2008-12-18

Apparatus and system for dispensing liquids

#600
20080267785
2008-10-30

Drill rig apparatuses with directly driven shaft & drilling fluid pump systems