ClassID:

142842

F04B27/0414 - 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; Details, component parts specially adapted for such pumps Cams

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
20240229781
2024-07-11

Piston Compressor

#3
20240011475
2024-01-11

Radial piston compressor with transmission element and piston guide ring

#4
20170030346
2017-02-02

Sealed cavity compressor to reduce contaminant induction

#5
20150044072
2015-02-12

Compressor unit, and compressor

#6
20140294636
2014-10-02

Reciprocating compressor

#7
20120260795
2012-10-18

RING CAM AND FLUID-WORKING MACHINE INCLUDING RING CAM

#8
20110277877
2011-11-17

DEVICE FOR DELIVERING A GAS

#9
20110198887
2011-08-18

DOUBLE-ACTING PISTON COMPRESSOR OF WHICH THE PISTON IS GUIDED BY A ROLLER AND DRIVEN BY A PINION AND RACKS

#10
20110038740
2011-02-17

COMPRESSOR

#11
20100319547
2010-12-23

Reciprocating compressor and oxygen concentrator

#12
20100236648
2010-09-23

FILLING MACHINE FOR HIGHLY COMPRESSED GAS

#13
20100150746
2010-06-17

COMPRESSOR

#14
20100092313
2010-04-15

Refrigerant compressor having a connecting rod with a force application point at crank pin which is displaced in a direction of the bearing in relation to the axial center of the crank pin

#15
20100061866
2010-03-11

Direct crankshaft of air compressor

#16
20090220357
2009-09-03

MULTISTAGE COMPRESSOR

#17
20090199811
2009-08-13

Crankshaft beam piston engine or machine

#18
20090016917
2009-01-15

Compact dual rocking piston pump with reduced number of parts

#19
20080141855
2008-06-19

Efficiencies for cam-drive piston engines or machines

#20
20070116585
2007-05-24

Cam driven piston compressor apparatus

#21
20070068468
2007-03-29

Rotary to reciprocal power transfer device

#22
20070056552
2007-03-15

Efficiencies for piston engines or machines

#23
20060245940
2006-11-02

Eccentric drive mechanism for volumetric pumps or motors

#24
20060216158
2006-09-28

Home oxygen-compression apparatus

#25
20050112002
2005-05-26

Crankcase sealing apparatus

#26
20050100458
2005-05-12

Pump with transfer tube

#27
20050098222
2005-05-12

Flapper valve mounting structure

#28
20050074351
2005-04-07

Pump cylinder seal

#29
20050069431
2005-03-31

Piston mounting and balancing system