Patents-Review.com
ClassID:

143501 ⎘

F04C14/04 - CPC Classification

Classification description:

Control of, monitoring of, or safety arrangements for, machines, pumps or pumping installations specially adapted for reversible machines or pumps

Recent Application in this class:
#1
20240280101
2024-08-22

Reversible Reciprocating Pump

 #2
20240051367
2024-02-15

PRE-PRESSURIZED SYSTEM WITH REVERSE ROTATION OF PUMP FOR VALVE ACTUATION

 #3
20240011482
2024-01-11

STEPPED HOLLOW WHEEL

 #4
20230287883
2023-09-14

Internal gear fluid machine with connection channel in each of two housing walls

 #5
20230193899
2023-06-22

Internal gear machine with switching valves

 #6
20230175505
2023-06-08

Fluid delivery system with load-dependent rotational speed reversal of a rotary pump

 #7
20230136689
2023-05-04

PUMP WITH VARIABLE SUCTION/DISCHARGE AMOUNT AND DRIVE DEVICE COMPOSED OF THE PUMP AND DRIVING METHOD THEREOF

 #8
20230022514
2023-01-26

Reversible gerotor pump system

 #9
20220356878
2022-11-10

Reversible Reciprocating Pump

 #10
20220316472
2022-10-06

Variable oil pump

 #11
20220266948
2022-08-25

Hydraulic automatic transmission bicycle

 #12
20220178368
2022-06-09

PROGRESSIVE CAVITY PUMP SYSTEM HAVING REVERSE MODE

 #13
20220128053
2022-04-28

Reversible Reciprocating Pump

 #14
20220112808
2022-04-14

Rotary pump with discharge control

 #15
20220010795
2022-01-13

Vane pump with tip-end-side guide surfaces provided between inner and outer notches of the discharge port and base-end-side guide surface provided in the back pressure port

 #16
20210164467
2021-06-03

Liquid pump, in particular for providing a supply to a transmission or to a clutch in the drive train of a motor vehicle

 #17
20200369490
2020-11-26

Reel braking system

 #18
20200172199
2020-06-04

Hydraulic automatic transmission bicycle

 #19
20200014277
2020-01-09

Portable fuel pump

 #20
20190242410
2019-08-08

Miniature high pressure pump and electrical hydraulic actuation system

 #21
20190110375
2019-04-11

Dual motor gear pump

 #22
20190011046
2019-01-10

HYDRAULIC CIRCUIT TO ENABLE UNIDIRECTIONAL FLOW UNDER FORWARD AND REVERSE POSITIVE DISPLACEMENT PUMP ROTATION

 #23
20180313325
2018-11-01

Rotational mechanical transformer apparatus and methods

 #24
20180298897
2018-10-18

Pump and blocking element

 #25
20180274538
2018-09-27

Pump including a rotor and a plurality of blocking device elements for blocking a pump duct

 #26
20180230995
2018-08-16

Positive displacement transfer gear pump for molten metal

 #27
20180142686
2018-05-24

Positive-Displacement Pump, Method for Operating a Positive-Displacement Pump, and Steering System

 #28
20180135228
2018-05-17

Laundry-care appliance comprising a metering system

 #29
20170335845
2017-11-23

Pump for an additive

 #30
20170291661
2017-10-12

Hydraulic automatic transmission bicycle

 #31
20170248019
2017-08-31

HYDROELECTRIC GEAR PUMP WITH VARYING HELIX ANGLES OF GEAR TEETH

 #32
20170227005
2017-08-10

Positive displacement pump having multiple operating stages

 #33
20170201146
2017-07-13

Portable fuel pump

 #34
20170045047
2017-02-16

Vane pump with adjustable delivery volume

 #35
20170037876
2017-02-09

Fluid pump for a linear actuator

 #36
20160252083
2016-09-01

Turbomachine which can be operated both as hydraulic motor and as pump

 #37
20160237978
2016-08-18

Gear Pump for Hydroelectric Power Generation

 #38
20160201694
2016-07-14

Miniature high pressure pump and electrical hydraulic actuation system

 #39
20150267701
2015-09-24

Motor-pump unit

 #40
20150267699
2015-09-24

Motor-pump unit

 #41
20150135701
2015-05-21

Fluid pump for a linear actuator

 #42
20150110658
2015-04-23

Pump with pivoted vanes

 #43
20150086403
2015-03-26

Internal-gear pump and hydraulic circuit for a motor vehicle drivetrain

 #44
20140178230
2014-06-26

Fixed and variable pumps with parallel flow

 #45
20140017094
2014-01-16

Metering system

 #46
20130177451
2013-07-11

WASHER SYSTEM AND PUMP FOR SAME

 #47
20130126024
2013-05-23

Bi-directional pump

 #48
20120177520
2012-07-12

Reversible gerotor pump

 #49
20110252906
2011-10-20

Vehicle oil pump

 #50
20110206549
2011-08-25

Bi-rotational hydraulic motor with optional case drain

 #51
20100233005
2010-09-16

Internal gear pump for a brake system

 #52
20100126774
2010-05-27

Valve-controlled downhole motor

 #53
20090095548
2009-04-16

DRIVE SYSTEM WITH FLUID PUMP

 #54
20080246427
2008-10-09

Electromechanical drive system, in particular for progressive cavity pumps for oil wells

 #55
20080199339
2008-08-21

SAFE BACKSPIN DEVICE

 #56
20060275117
2006-12-07

Propeller pump system for handed propeller applications

 #57
20060104847
2006-05-18

Vane-type hydraulic motor

 #58
20060073060
2006-04-06

Oil pump

 #59
20050281698
2005-12-22

Low speed, high torque rotary abutment motor

 #60
20050281689
2005-12-22

Diametric slider block pump

 #61
20050032602
2005-02-10

Lubrication pump for inter-axle differential