Patents-Review.com
ClassID:

143124 ⎘

F04B49/025 - CPC Classification

Classification description:

Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups  - ; Stopping, starting, unloading or idling control by means of floats

Recent Application in this class:
#1
20240410629
2024-12-12

COMPRESSOR AND REFRIGERATION CYCLE DEVICE HAVING THE SAME

 #2
20240328667
2024-10-03

Modular condensate removal system, modules and corresponding installation and maintenance methods

 #3
20240287981
2024-08-29

LIQUID CONTAINER SYSTEM

 #4
20240280096
2024-08-22

LIQUID CONTAINER SYSTEM

 #5
20230366390
2023-11-16

DUPLEX CONTROL OF REDUNDANT PASSIVELY-ACTUATED ELECTRONIC DEVICES

 #6
20230213111
2023-07-06

Pump, multi-function valve, and controller apparatus

 #7
20230053488
2023-02-23

CONTINUED POWER FOR GRINDER PUMPS BASED ON ELEVATED LOAD

 #8
20220290663
2022-09-15

Automated fluid transfer system

 #9
20220213885
2022-07-07

System and method for managing liquid waste

 #10
20220146171
2022-05-12

Compressor and refrigeration cycle device having the same

 #11
20220112891
2022-04-14

Sewage basin pump control support

 #12
20220034313
2022-02-03

Modular pump and pumping system including same

 #13
20210363999
2021-11-25

Pump and method for controlling a pump

 #14
20210164474
2021-06-03

Mobile power supply for sump pump

 #15
20210115768
2021-04-22

Landfill well pump

 #16
20200173407
2020-06-04

Fuel pump assembly

 #17
20200080525
2020-03-12

Fuel pump assembly

 #18
20200080524
2020-03-12

Fuel pump assembly

 #19
20190353512
2019-11-21

Fluid sensing switch

 #20
20190293065
2019-09-26

Method for identifying if a submersible pump is sucking partly liquid and partly air

 #21
20190249658
2019-08-15

Operation of pump stations with additive pumps

 #22
20190242374
2019-08-08

Sump pump control

 #23
20190195218
2019-06-27

Piston pump arrangement automatically disabling in absence of inlet liquid

 #24
20190195215
2019-06-27

Sewage basin pump control support

 #25
20190154021
2019-05-23

Mobile-automatic power supply for sump pump

 #26
20190120234
2019-04-25

Water pumping control device and system

 #27
20190032668
2019-01-31

Fluid Delivery Apparatuses and Methods of Use

 #28
20180363639
2018-12-20

Electronic systems for controlling submersible pumps

 #29
20180291911
2018-10-11

Whole home water appliance system

 #30
20180245580
2018-08-30

Piston pump arrangement automatically disabling in absence of inlet liquid

 #31
20180202436
2018-07-19

Modular pneumatic well pump system

 #32
20180128265
2018-05-10

Method of bypassing a float switch controlling a water pump

 #33
20170370369
2017-12-28

Self-test methods and systems for submersible pump systems

 #34
20170075363
2017-03-16

Liquid level sensing system

 #35
20170009567
2017-01-12

Down-hole liquid level control for hydrocarbon wells

 #36
20150147190
2015-05-28

Test and monitoring system for a sump pump installation operable from a remote location

 #37
20150143893
2015-05-28

Test and monitoring system for a battery-powered DC pump installation

 #38
20130336804
2013-12-19

Time-based multi-mode pump control

 #39
20130098460
2013-04-25

Process for transferring a liquid using a pump

 #40
20120312397
2012-12-13

Multiple switch float switch apparatus

 #41
20120291883
2012-11-22

Fluid level control mechanism

 #42
20120267092
2012-10-25

Down-hole liquid level control for hydrocarbon wells

 #43
20120261111
2012-10-18

Down-hole liquid level control for hydrocarbon wells

 #44
20120251333
2012-10-04

Autonomous sump pump system

 #45
20120183415
2012-07-19

Steam powered pump

 #46
20120082571
2012-04-05

Fluid level control mechanism

 #47
20110311370
2011-12-22

SUMP PUMP SYSTEM WITH REMOTE CONTROL AND MONITORING

 #48
20110200452
2011-08-18

Multiple switch float switch apparatus

 #49
20110085919
2011-04-14

Alarm system for a sump pump assembly

 #50
20110052414
2011-03-03

Apparatus for Controlling a Pump

 #51
20100329889
2010-12-30

Switch and float assembly for a pump

 #52
20100038078
2010-02-18

Down-hole liquid level control for hydrocarbon wells

 #53
20090317259
2009-12-24

System and method for explosion-proof pump

 #54
20080031751
2008-02-07

Sump pump control system

 #55
20060275136
2006-12-07

Activation device for sump pumps

 #56
20060039796
2006-02-23

Engine-powered air compressor with a controller for low oil condition

 #57
15943764
2019-07-23

Low cleaning fluid shutdown system for use with a pressure washer

 #58
15004488
2019-01-29

Pump switching device

 #59
14531440
2016-10-04

Sump pump apparatus and method