ClassID:

142643

F04B1/28 - CPC Classification

Classification description:

Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinder axes coaxial with, or parallel or inclined to, main shaft axis; Control of machines or pumps with stationary cylinders

Sub-classes:
Recent Application in this class:
#1
20250207570
2025-06-26

ROTARY SWASH PLATE HYDRAULIC PUMP

#2
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2025-06-19

WOBBLE PLATE PISTON WATER PUMP FOR USE IN A LOW FLOW GAS PRESSURE WASHER OR A LOW CURRENT ELECTRIC PRESSURE WASHER

#3
20250188913
2025-06-12

ROTARY SWASH PLATE HYDRAULIC PUMP

#4
20240253770
2024-08-01

ELECTROHYDRAULIC PITCH SETTING WITH REVERSIBLE PUMP

#5
20230026231
2023-01-26

Method for Operating a High-Density Solids Pump and High-Density Solids Pump

#6
20220412336
2022-12-29

Wobble plate pistonwater pump for use ina low flow gas pressure washer or a low current electric pressure washer

#7
20220364557
2022-11-17

Wobble plate piston water pump for use in a low flow gas pressure washer or a low current electric pressure washer

#8
20220018341
2022-01-20

Cylinder drive device and flow channel unit

#9
20200347836
2020-11-05

Wobble plate piston water pump for use in a low flow gas pressure washer or a low current electric pressure washer

#10
20190360482
2019-11-28

Axial piston machine with recess in the region of the loading pressure channel

#11
20190331100
2019-10-31

ADAPTIVE CONTROL SYSTEM AND METHODS FOR WELL SERVICE PUMP SYSTEMS

#12
20180313341
2018-11-01

Wobble plate piston pump for low flow gas and electric water pressure washers

#13
20180258907
2018-09-13

Axial piston machine

#14
20180195491
2018-07-12

Hydrostatic axial piston motor of bent-axis construction

#15
20180058421
2018-03-01

Axial piston machine with outlet control

#16
20180030979
2018-02-01

Apparatus, system, and method for introducing a liquid into a vessel

#17
20170159641
2017-06-08

Variable displacement pump-motor

#18
20170030344
2017-02-02

End of stroke detection for plunger velocity correction

#19
20160377068
2016-12-29

Hydraulic drive multi-element cryogenic pump

#20
20160245266
2016-08-25

Piston shifting control system

#21
20160146198
2016-05-26

Metering Pump

#22
20160047365
2016-02-18

Canted off-axis driver for quiet pneumatic pumping

#23
20130216402
2013-08-22

Water pump having two operating conditions

#24
20110185717
2011-08-04

Hydraulic manifold pump

#25
20100322791
2010-12-23

Hydraulic system with supplement pump

#26
20070297921
2007-12-27

CONDUIT SEAT FOR AN ATOMIZING DEVICE