ClassID:

142985

F04B39/042 - CPC Classification

Classification description:

Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups -; Measures to avoid lubricant contaminating the pumped fluid sealing for a reciprocating rod sealing being provided on the piston

Recent Application in this class:
#1
20250283458
2025-09-11

LONG-LIFE NON-CONTACT PUMP

#2
20250163901
2025-05-22

PISTON FOR A COMPRESSOR, COMPRESSOR, AND METHOD AND REMOVAL TOOL FOR DISASSEMBLING A PISTON

#3
20230184332
2023-06-15

Piston ring arrangement, piston compressor and method for sealing a compression chamber

#4
20230046766
2023-02-16

PUMPING ASSEMBLY, PISTON PUMP AND ORAL IRRIGATOR

#5
20220372963
2022-11-24

Piston compressor and method for operating same

#6
20220372962
2022-11-24

Packing seal for a piston compressor and method for operating same

#7
20220120347
2022-04-21

Rod packing

#8
20210262459
2021-08-26

Automobile inflatable pump

#9
20210254712
2021-08-19

Lubrication system for a piston pump

#10
20200200156
2020-06-25

PUMPING DEVICE

#11
20200011312
2020-01-09

Cylinder assemble structure for compact air compressor

#12
20190010938
2019-01-10

Small air compressor

#13
20190003468
2019-01-03

Portable pump

#14
20180010601
2018-01-11

Mud pump sealing assembly

#15
20170298931
2017-10-19

Fluidic cylinder

#16
20150361971
2015-12-17

Wobble piston having angled compression ring and spherical piston cap

#17
20150209986
2015-07-30

Method for producing a piston

#18
20150093264
2015-04-02

Pump

#19
20150020681
2015-01-22

Stroke piston for a stroke piston compressor

#20
20140199182
2014-07-17

RECIPROCATING WATER PUMP

#21
20130154197
2013-06-20

Seal arrangement

#22
20120211945
2012-08-23

SEALING PACKING FOR A RECIPROCATING PISTON ROD OF A RECIPROCATING COMPRESSOR

#23
20120020821
2012-01-26

Rocking piston type compressor

#24
20110277626
2011-11-17

Rocking piston type compressor

#25
20060140800
2006-06-29

Injection moldable piston rings

#26
20050188839
2005-09-01

Oilless reciprocating air compressor