Patents-Review.com
ClassID:

143978 ⎘

F04D9/041 - CPC Classification

Classification description:

Priming; Preventing vapour lock using priming pumps; using booster pumps to prevent vapour-lock the priming pump having evacuating action

Sub-classes:
Recent Application in this class:
#1
20260043405
2026-02-12

FLOAT BOX WITH VALVE

 #2
20240392786
2024-11-28

SEALING SOFT WATER RECOVERY APPARATUS FOR VACUUM PUMP IN VACUUM PRESSURE SWING ADSORPTION OXYGEN GENERATION SYSTEM

 #3
20240280107
2024-08-22

Smart vacuum priming system

 #4
20240068476
2024-02-29

SELF-PRIMING WATER JACKET WITH PRIMING INLET

 #5
20230392506
2023-12-07

Vane arc segment with single-sided platforms

 #6
20230323882
2023-10-12

VACUUM PRIMING SYSTEM FOR CLOSE-COUPLED PUMPS

 #7
20230296069
2023-09-21

Sealing ring gland and fuel pump including the same

 #8
20220325716
2022-10-13

Quick startup device for centrifugal pump

 #9
20220290673
2022-09-15

Pumping System

 #10
20220049702
2022-02-17

Dual priming system for a pump

 #11
20210388595
2021-12-16

Sewage discharge device

 #12
20180340523
2018-11-29

Self-priming pump assembly

 #13
20180058466
2018-03-01

Self-priming pump

 #14
20170363086
2017-12-21

MODIFIED OIL PUMP FOR USE IN NON-OIL TRANSPORT

 #15
20160327047
2016-11-10

SELFPRIMING SYSTEM HAVING VALVE FOR A CENTRIFUGAL PUMP

 #16
20150136246
2015-05-21

Flood water removal system

 #17
20130078120
2013-03-28

Ejector-Less Vacuum Creation Pump Using Suction

 #18
20120315126
2012-12-13

Vacuum self-priming pump

 #19
20120312392
2012-12-13

Pump system with vacuum source

 #20
20110142687
2011-06-16

Flood water removal system

 #21
20110044827
2011-02-24

Self priming pump assembly with a direct drive vacuum pump

 #22
20110008183
2011-01-13

Vacuum source and float valve for a self-priming pump

 #23
20080159889
2008-07-03

FLOOD WATER REMOVAL SYSTEM

 #24
20060110261
2006-05-25

Pump System with a vacuum source coupled to a separator

 #25
20050053496
2005-03-10

Pulp pump

 #26
17695133
2023-08-15

Sealing ring gland and fuel pump including the same

 #27
17575468
2023-06-13

Electric priming pump device