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ClassID:

142859 ⎘

F04B27/053 - CPC Classification

Classification description:

Multi-cylinder pumps specially adapted for elastic fluids and characterised by number or arrangement of cylinders having cylinders in star- or fan-arrangement with an actuating element at the inner ends of the cylinders

Sub-classes:
Recent Application in this class:
#1
20250172133
2025-05-29

PISTON-CYLINDER ASSEMBLY FOR A RADIAL PISTON COMPRESSOR, AND RADIAL PISTON COMPRESSOR

 #2
20240011475
2024-01-11

Radial piston compressor with transmission element and piston guide ring

 #3
20230287874
2023-09-14

Apparatuses, Systems, and Methods for Improved Performance of a Pressurized System

 #4
20230151803
2023-05-18

Air compressor

 #5
20220136493
2022-05-05

Apparatuses, systems, and methods for improved performance of a pressurized system

 #6
20200386217
2020-12-10

Compressor assembly for a compressed-air feed of a compressed-air supply system

 #7
20200003197
2020-01-02

Hypocycloid compressor

 #8
20190203885
2019-07-04

Tank state-detecting breathing air charger

 #9
20180354081
2018-12-13

Fluid end and method of manufacturing it

 #10
20180112657
2018-04-26

System and method for controlling moisture within an air compressor assembly

 #11
20180100493
2018-04-12

Piston cylinder arrangement for an oil free compressor having cooling passageways and method of cooling wrist pin bearing surface

 #12
20180003122
2018-01-04

System and method for a compressor

 #13
20170373766
2017-12-28

System for piston rod monitoring

 #14
20170306935
2017-10-26

Reciprocating pump

 #15
20170254320
2017-09-07

Engine compressor unit

 #16
20170030346
2017-02-02

Sealed cavity compressor to reduce contaminant induction

 #17
20160123311
2016-05-05

Fluid working machine having first and second valve cylinder devices in fluid communication with each other via a common conduit

 #18
20150044072
2015-02-12

Compressor unit, and compressor

 #19
20140341758
2014-11-20

Reciprocating compressor or pump and a portable tool powering system including a reciprocating compressor

 #20
20140227111
2014-08-14

Method of producing air for ventricular assist system

 #21
20140216262
2014-08-07

Reciprocating pump and oxygen concentrator

 #22
20130177454
2013-07-11

Reciprocating compressor or pump and a portable tool powering system including a reciprocating compressor

 #23
20120192583
2012-08-02

Suction Cutoff Unloader Valve For Compressor Capacity Control

 #24
20120177524
2012-07-12

Rotary cylinder device

 #25
20100319547
2010-12-23

Reciprocating compressor and oxygen concentrator

 #26
20100111715
2010-05-06

Air supply mechanism for ventricular assist system

 #27
20100013237
2010-01-21

Wind powered energy amplification system and method

 #28
20090274493
2009-11-05

Air discharging apparatus and image forming apparatus

 #29
20090199811
2009-08-13

Crankshaft beam piston engine or machine

 #30
20090110567
2009-04-30

Air Compressor

 #31
20080141855
2008-06-19

Efficiencies for cam-drive piston engines or machines

 #32
20080025856
2008-01-31

COMPRESSOR FOR LIQUID FUEL CANISTER

 #33
20080003119
2008-01-03

Radial type reciprocating compressor and portable tool powering system with flexing connecting rod arrangement

 #34
20080003112
2008-01-03

Radial type reciprocating compressor and portable tool powering system with cylinder liner, valve and annular manifold arrangement

 #35
20070292282
2007-12-20

RECIPROCATING COMPRESSOR OR PUMP AND A PORTABLE TOOL POWERING SYSTEM INCLUDING A RECIPROCATING COMPRESSOR

 #36
20070056552
2007-03-15

Efficiencies for piston engines or machines

 #37
20060218959
2006-10-05

Refrigerant compressor

 #38
20050201868
2005-09-15

Multi-stage compressor

 #39
20050175480
2005-08-11

Yoke mechanism for compressor

 #40
12803988
2016-05-31

Modular radial compressor