ClassID:

143219

F04B53/146 - CPC Classification

Classification description:

Component parts, details or accessories not provided for in, or of interest apart from, groups  -  or  - ; Pistons, piston-rods or piston-rod connections; Adaptation of piston-rods Piston-rod guiding arrangements

Recent Application in this class:
#1
20260043394
2026-02-12

LINEAR DRIVE ASSEMBLY

#2
20250376977
2025-12-11

PUMP DRIVE SYSTEM

#3
20250264151
2025-08-21

LINEAR DRIVE ASSEMBLY

#4
20250109639
2025-04-03

ROBUST VALVE ROD GUIDE ASSEMBLY

#5
20250020192
2025-01-16

Linear drive assembly

#6
20240344509
2024-10-17

DOUBLE MEMBRANE PUMP

#7
20240309859
2024-09-19

PISTON COMPRESSOR AND METHOD OF OPERATING THE SAME

#8
20240240625
2024-07-18

SYSTEM FOR DISPENSING ABRASIVE MATERIAL

#9
20240167471
2024-05-23

Fluid dispensing system having a piston rod and wear sleeve

#10
20240077067
2024-03-07

Induced flow double disc pump assembly having rotating element

#11
20230383746
2023-11-30

Piston with sleeve for fluid pump

#12
20230160385
2023-05-25

PUMP ACTUATOR WITH STAMP-ALIGNED ANTI-ROTATION FEATURE

#13
20230053004
2023-02-16

Removable piston rod sleeve for fluid pump

#14
20220299017
2022-09-22

System for dispensing abrasive material

#15
20220220950
2022-07-14

PUMP DRIVE SYSTEM

#16
20220178360
2022-06-09

Reciprocating compressor

#17
20210301801
2021-09-30

Pump drive system

#18
20210231121
2021-07-29

Piston rod assembly for a fluid pump

#19
20210123424
2021-04-29

Linear compressor

#20
20210102533
2021-04-08

Linear compressor

#21
20210079901
2021-03-18

Ultra-long stroke multi-cylinder reciprocating pump

#22
20200300239
2020-09-24

HAND AIR PUMP INFLATING DEVICE

#23
20200088190
2020-03-19

Piston rod assembly for a paint pump

#24
20200070783
2020-03-05

Compressor

#25
20190368485
2019-12-05

Pump actuator with stamp-aligned anti-rotation feature

#26
20190234402
2019-08-01

Reciprocating compressor

#27
20180340532
2018-11-29

Reciprocating pumps and closures therefore

#28
20180251969
2018-09-06

Suction device for waste discharge

#29
20180238324
2018-08-23

Removable piston rod sleeve for fluid pump

#30
20180163719
2018-06-14

Reciprocating pump

#31
20180163712
2018-06-14

CHAMBER PUMP AND METHOD FOR OPERATING A CHAMBER PUMP

#32
20180051683
2018-02-22

Linear compressor with a ball joint coupling

#33
20170313292
2017-11-02

Guide ring of a piston pump for a vehicle brake system

#34
20170268491
2017-09-21

Fluid pump

#35
20170198690
2017-07-13

Piston rod having cap recess

#36
20170184123
2017-06-29

Non-welded suction chamber for surface pumping systems

#37
20170146008
2017-05-25

PUMP FOR SUPPLYING AN APPLICATION SYSTEM OF A LIQUID COVERING PRODUCT

#38
20170058878
2017-03-02

Hydraulic drive system for cryogenic pump

#39
20170051731
2017-02-23

Oscillating armature pump with a flux-conducting element

#40
20170009766
2017-01-12

Rigid piston-actuator-assembly supported for performing a pendulum-type tolerance compensation motion

#41
20160369793
2016-12-22

Liquid delivery pump

#42
20160273527
2016-09-22

Diaphragm pump with a rail to restrict rotation and a piston cavity to engage with a guiding member at the end of the suction stroke

#43
20160251007
2016-09-01

Pump for integrated brake system

#44
20160146204
2016-05-26

PLUNGER APPARATUS FOR HIGH PRESSURE PUMP

#45
20150167658
2015-06-18

Linear compressor

#46
20140318363
2014-10-30

Harmonic uniflow engine

#47
20140105764
2014-04-17

Reciprocating compressor

#48
20140010670
2014-01-09

Packing lubrication system

#49
20120312105
2012-12-13

MECHANISM FOR TRANSFORMING CIRCULAR MOTION INTO TRANSLATIONAL MOTION TO DRIVE THE PISTON OF A CNG COMPRESSOR

#50
20120177513
2012-07-12

Linear compressor

#51
20120058000
2012-03-08

Self-Aligning Rod Seal

#52
20110286867
2011-11-24

Mud pump

#53
20110138995
2011-06-16

Compression system having seal with magnetic coupling of pistons

#54
20100284841
2010-11-11

Piston pump for delivering a fluid, and associated brake system

#55
20100275774
2010-11-04

BIAXIAL ALIGNMENT ASSEMBLY FOR FORCE DELIVERY DEVICE

#56
20100223936
2010-09-09

Linear Compressor with Carbon Fibre Reinforced Spring

#57
20090214361
2009-08-27

OIL-LESS COMPRESSOR WITH SEAL-DUST PROTECTION

#58
20090189354
2009-07-30

RECIPROCATING-ROD SEAL

#59
20080008606
2008-01-10

Axially Driven Piston/Cylinder Unit

#60
19004636
2025-11-18

Linear drive assembly