Class F04B : POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
Subclass 1/22: Multi-cylinder machines or pumps characterised by number or arrangement of cylinders (F04B 3/00 takes precedence; fluid-driven pumps F04B 9/08; control of reciprocating machines or pumps in general F04B 49/00) having cylinder axes coaxial with, or parallel or inclined to, main shaft axis having rotary cylinder block having two or more sets of cylinders or pistons
| Patent # | Title | Filing Date | Issue Date | Patent Owner |
|---|---|---|---|---|
| 10598146 | Hydraulic pump-motor | Aug 08, 14 | Mar 24, 20 | Komatsu Ltd. |
| 10590920 | Pump device | Nov 03, 15 | Mar 17, 20 | Danfoss A/S |
| 10527029 | Axial piston pump | May 15, 14 | Jan 07, 20 | HYDAC DRIVE CENTER GMBH |
| 10495074 | Pump arrangement | Nov 03, 15 | Dec 03, 19 | Danfoss A/S |
| 10458387 | Hydrostatic axial piston machine | Nov 30, 16 | Oct 29, 19 | Robert Bosch GmbH |
| 10400742 | Hydraulic machine with floating cylinders | Nov 30, 16 | Sep 03, 19 | MERLO GALFRÉ INNOVATION LAB S.R.L. |
| 10247178 | Variable displacement axial piston pump with fluid controlled swash plate | Mar 28, 16 | Apr 02, 19 | Robert Bosch GmbH |
| 10145367 | Piston pump and valve plate of piston pump | Jun 04, 15 | Dec 04, 18 | KYB Corporation |
| 10071440 | Device for producing metal member | Aug 29, 14 | Sep 11, 18 | Komatsu Ltd. |
| 9964211 | Piston of axial piston pump motor, cylinder block of axial piston pump motor, and axial piston pump motor | Feb 20, 14 | May 08, 18 | Kawasaki Jukogyo Kabushiki Kaisha |
| 9920751 | Hydraulic axial piston machine | Jun 24, 11 | Mar 20, 18 | ROBERT BOSCH GMBH |
| 9849482 | Hydraulic pump and piston for such a hydraulic pump | May 16, 14 | Dec 26, 17 | HYDAC DRIVE CENTER GMBH |
| 9782795 | Method for coating a pump component | Apr 30, 14 | Oct 10, 17 | HYDAC DRIVE CENTER GMBH |
| 9771929 | Stress reduction in hydrostatic cradle bearing | May 02, 14 | Sep 26, 17 | CATERPILLAR INC. |
| 9676465 | Piston pump | Sep 12, 14 | Jun 13, 17 | ULTRAFLEX S.P.A. |
| 9670915 | SBS piston pump housing assembly | Mar 27, 14 | Jun 06, 17 | CATERPILLAR INC. |
| 9664184 | Axial piston pump having a swash-plate type construction | Mar 12, 14 | May 30, 17 | HYDAC DRIVE CENTER GMBH |
| 9644480 | Fluid pressure rotary machine | Jul 18, 13 | May 09, 17 | KYB CORPORATION |
| 9410540 | Variable displacement hydraulic motor/pump | Nov 17, 11 | Aug 09, 16 | KOMATSU LTD. |
| 9341170 | Axial piston machine | Aug 05, 11 | May 17, 16 | ROBERT BOSCH GMBH |
| Publication # | Title | Filing Date | Pub Date | Patent Owner |
|---|---|---|---|---|
| 2019/0211,812 | A HYDRAULIC DEVICE, A METHOD OF MANUFACTURING A HYDRAULIC DEVICE AND A GROUP OF HYDRAULIC DEVICES | May 17, 17 | Jul 11, 19 | Not available |
| 2016/0025,081 | HYDRAULIC PUMP WITH DOUBLE DIRECTION OF ROTATION | Mar 27, 14 | Jan 28, 16 | HYDRO LEDUC |
| 2015/0078,930 | FLUID PRESSURE PUMP | Mar 26, 13 | Mar 19, 15 | MITSUBISHI HEAVY INDUSTRIES, LTD. |
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