F04B53/121 - CPC Classification Index

ClassID:

143204 ⎘

F04B53/121 - CPC Classification

Classification description:

Component parts, details or accessories not provided for in, or of interest apart from, groups - or - ; Valves; Arrangement of valves arranged in or on pistons the valve being an annular ring surrounding the piston, e.g. an O-ring

Recent Application in this class:

20240240625

2024-07-18

SYSTEM FOR DISPENSING ABRASIVE MATERIAL

20220299017

2022-09-22

System for dispensing abrasive material

20220056905

2022-02-24

Pump for spraying liquid

20220003232

2022-01-06

Pump having a valve mechanism stopping and permitting flow between a suction chamber and a discharge chamber

20210180589

2021-06-17

Piston pump

20190316582

2019-10-17

Piston pump and seal ring

20190101108

2019-04-04

Metering pump for a metering device and metering device

20180238310

2018-08-23

Bicycle pump

20170335840

2017-11-23

PUMP ARRANGEMENT

#10

20170167477

2017-06-15

Bicycle pump

#11

20160201656

2016-07-14

Compressed air driven reciprocating piston hydraulic pump

#12

20150233362

2015-08-20

Turn-back coaxial gas pressurizing pump and gas pressurizing method

#13

20150110657

2015-04-23

Adjusting device for an adjusting piston of a variable clearance space of a reciprocating compressor

#14

20130189139

2013-07-25

Valveless reciprocating compressor

#15

20130015117

2013-01-17

Drainage device for closed chamber containing liquid

#16

20110277626

2011-11-17

Rocking piston type compressor

#17

20110091331

2011-04-21

HIGH PRESSURE PUMPING CARTRIDGES FOR MEDICAL AND SURGICAL PUMPING AND INFUSION APPLICATIONS

#18

20080310979

2008-12-18

Piston Pump With Improved Efficiency

#19

20080206081

2008-08-28

Piston pump

#20

20080195058

2008-08-14

Methods and apparatuses for joining a pumping cartridge to a pump drive