Patents-Review.com
ClassID:

142710 ⎘

F04B9/047 - CPC Classification

Classification description:

Piston machines or pumps characterised by the driving or driven means to or from their working members the means being mechanical the means being cams, eccentrics or pin-and-slot mechanisms the means being pin-and-slot mechanisms

Recent Application in this class:
#1
20250250973
2025-08-07

RECIPROCATING PUMP TURNING AND BARRING TOOL

 #2
20240309864
2024-09-19

METHOD AND PUMP FOR LOW-FLOW PROPORTIONAL METERING

 #3
20240110551
2024-04-04

HARD SEAL COMPACT, POSITIVE DISPLACEMENT PUMP WITH RECIPROCATING MOTION

 #4
20240068457
2024-02-29

ROTATING RECIPROCATING PISTON PUMP WITH A BARREL CAM

 #5
20240058528
2024-02-22

Rotational metering pump for medication patch

 #6
20240052817
2024-02-15

Reciprocating pump turning and barring tool

 #7
20230366386
2023-11-16

Rotational metering gasket pump

 #8
20230313787
2023-10-05

ROTATIONAL METERING PUMP WITH CAM-DRIVEN VALVING SHUTTLE INTERLOCK

 #9
20230310737
2023-10-05

ROTATIONAL METERING PUMP FOR INSULIN PATCH

 #10
20220235750
2022-07-28

PISTON TYPE PUMP DRIVE ARRANGEMENT

 #11
20220160958
2022-05-26

Rotational metering pump for insulin patch

 #12
20210301810
2021-09-30

HYDRAULIC ELEMENT AND DISPLACEMENT PUMP HAVING SUCH AN ELEMENT

 #13
20210293226
2021-09-23

Precision, constant-flow reciprocating pump

 #14
20210254615
2021-08-19

Variable flow rate mechanical pump assembly

 #15
20210156370
2021-05-27

Auto-reversing driveshaft system and method

 #16
20210122342
2021-04-29

Piston pump assembly for a hydraulic power vehicle braking system

 #17
20210108625
2021-04-15

Reciprocating injection pump and method of use

 #18
20200360601
2020-11-19

Rotational metering pump for insulin patch

 #19
20200222626
2020-07-16

Rotational metering pump for insulin patch

 #20
20200124036
2020-04-23

OIL-FREE VACUUM PUMP HAVING A PRISMATIC PISTON AND CORRESPONDING COMPRESSOR

 #21
20190120218
2019-04-25

Tandem motor linear rod pump

 #22
20190120217
2019-04-25

Tandem motor linear rod pump

 #23
20190101107
2019-04-04

Plunger pump having a rotatable plunger with cut face disposed in a cylinder wherein the cylinder includes a main body and a spacer section with the spacer section having a greater length in an axial direction than the maximum stroke length of the plunger

 #24
20180298886
2018-10-18

Utilization of moment of inertia and lever for mechanical gain

 #25
20180087720
2018-03-29

Drive system for chemical injection pumps and instrument air compressors

 #26
20180058728
2018-03-01

Pump for a heat pump system

 #27
20180023554
2018-01-25

Compressor for discharging a medium

 #28
20170184091
2017-06-29

Rotational metering pump for insulin patch

 #29
20170107979
2017-04-20

Tandem motor linear rod pump

 #30
20170080144
2017-03-23

Self-locking coupling between a pump casing and a pump module

 #31
20170030445
2017-02-02

Rotation/translation converter gear unit

 #32
20170009766
2017-01-12

Rigid piston-actuator-assembly supported for performing a pendulum-type tolerance compensation motion

 #33
20170009764
2017-01-12

Method of setting zero point of bi-directional linear pump for active suspension apparatus

 #34
20160333870
2016-11-17

Liquid supply device

 #35
20160324388
2016-11-10

Variable flow rate mechanical pump assembly

 #36
20160298613
2016-10-13

Device for dispensing a substance comprising a chamber defining a substance inlet, a substance outlet, an air inlet, and an air outlet, a piston located inside the chamber and whose movement causes the exit of both the substance and air to outside of the device

 #37
20160195075
2016-07-07

Pump device and method therefor of conveying fluid, and method of manufacturing the pump device

 #38
20160195074
2016-07-07

Rotary swinging subassembly and device for cointegrated fluidic multiplexing and volumetric pumping of a fluid

 #39
20160169215
2016-06-16

Magnetic rotational to linear actuator for well pumps

 #40
20160116032
2016-04-28

Mechanism for converting motion

 #41
20160095413
2016-04-07

Oscillating linear actuator

 #42
20160000999
2016-01-07

Internal cam metering pump

 #43
20150360530
2015-12-17

Active suspension apparatus for vehicle and pump thereof

 #44
20150285036
2015-10-08

Subsea dosing pump

 #45
20150219099
2015-08-06

Rotary-oscillating subassembly and rotary-oscillating volumetric pumping device for volumetrically pumping a fluid

 #46
20150147210
2015-05-28

Pulsation-free positive displacement rotary pump

 #47
20150082925
2015-03-26

Gear motor pump assembly

 #48
20150078932
2015-03-19

Drive mechanism for rotary compressors or pumps

 #49
20140369873
2014-12-18

Compressor for pressurized fluid output

 #50
20140105768
2014-04-17

Hydrostatic actuator and arrangement of a hydrostatic actuator in a motor vehicle

 #51
20140033914
2014-02-06

Piston pump comprising flat guiding

 #52
20130017099
2013-01-17

Micropump

 #53
20120263616
2012-10-18

Fluid power helical rotary actuator

 #54
20120186518
2012-07-26

Rotary piston pump for metering a coating agent

 #55
20110308239
2011-12-22

Hydraulic engine with infinity drive

 #56
20110198887
2011-08-18

DOUBLE-ACTING PISTON COMPRESSOR OF WHICH THE PISTON IS GUIDED BY A ROLLER AND DRIVEN BY A PINION AND RACKS

 #57
20110030646
2011-02-10

JET EXHAUST PISTON ENGINE

 #58
20100292787
2010-11-18

Scotch-yoke mechanism for redundant actuation applications

 #59
20100272590
2010-10-28

MOTORIZED VACUUM/PRESSURE PUMP AND STOPPER

 #60
20100236522
2010-09-23

Rotary Cylindrical Device With Coupled Pairs of Pistons

 #61
20100163124
2010-07-01

Programmable logic controlled liquid pressurization device incorporating low energy consumption mechanisms for the utilization of solar energy

 #62
20100154442
2010-06-24

Portable refrigerant recovery machine

 #63
20100044026
2010-02-25

Oil well pump

 #64
20090311112
2009-12-17

Air supply apparatus

 #65
20090283191
2009-11-19

Device for generating tire air pressure

 #66
20090199724
2009-08-13

Evacuation device

 #67
20090196775
2009-08-06

Volumetric pump comprising a driving mechanism

 #68
20090173038
2009-07-09

Device and method for evacuating storage bag

 #69
20080161637
2008-07-03

Blood pump actuator and a blood pump system thereof

 #70
20080135126
2008-06-12

MOTORIZED VACUUM/PRESSURE MARINATING FOOD AND STORAGE CONTAINER

 #71
20080028730
2008-02-07

Device and Method For Evacuating A Storage Bag

 #72
20080006237
2008-01-10

Rotary cylindrical power device

 #73
20070251379
2007-11-01

Air compression apparatus and method of use

 #74
20070173763
2007-07-26

Motorized vacuum/pressure pump and stopper

 #75
20070025867
2007-02-01

Reciprocating pump and use of said reciprocating pump

 #76
20060053830
2006-03-16

Reciprocating axial displacement device

 #77
20050074342
2005-04-07

Motorized vacuum/pressure pump and stopper

 #78
18782689
2025-10-07

Water pump structure and oral irrigator

 #79
14734891
2018-07-31

Injector pump with roller bearing assembly