Class F04B : POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
Subclass 1/26: 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 Control
| Patent # | Title | Filing Date | Issue Date | Patent Owner |
|---|---|---|---|---|
| 12006659 | Hydraulic system for work machine | Jul 08, 22 | Jun 11, 24 | Kubota Corporation |
| 11946462 | Hydraulic axial piston unit and method for controlling of a hydraulic axial piston unit | Dec 02, 19 | Apr 02, 24 | Danfoss Power Solutions Inc. |
| 11828276 | Adjusting device for an axial piston machine | Nov 13, 18 | Nov 28, 23 | Liebherr Machines Bulle SA |
| 11826543 | Syringe pump, and related method and system | Sep 23, 21 | Nov 28, 23 | Deka Products Limited Partneship |
| 11725716 | Electric actuator for drive apparatus | Oct 10, 22 | Aug 15, 23 | Hydro-Gear Limited Partnership |
| 11236770 | Servo regulator | Mar 13, 18 | Feb 01, 22 | KYB Corporation |
| 11129933 | Syringe pump, and related method and system | Oct 02, 18 | Sep 28, 21 | DEKA Products Limited Partnership |
| 10767667 | Electronically controlled valve, hydraulic pump, and hydraulic pump system | Nov 14, 17 | Sep 08, 20 | Danfoss Power Solutions (Zhejiang) Co. Ltd. |
| 10722645 | Syringe pump, and related method and system | Aug 10, 17 | Jul 28, 20 | DEKA Products Limited Partnership |
| 10612652 | Return to neutral mechanism for variable drive apparatus | Mar 22, 16 | Apr 07, 20 | Hydro-Gear Limited Partnership |
| 10502197 | Pump | Dec 22, 17 | Dec 10, 19 | FNA Group, Inc. |
| 10473097 | System and method for speed control of variable speed pumping systems | Sep 02, 15 | Nov 12, 19 | TIGERFLOW SYSTEMS, LLC |
| 10280906 | Hydraulic system for work machine | Jun 06, 17 | May 07, 19 | Kubota Corporation |
| 10280913 | Cryopump system, method of operating the same, and compressor unit | Mar 12, 14 | May 07, 19 | Sumitomo Heavy Industries Ltd. |
| 10125761 | System for supplying a pressurized liquid, method for supplying a pressurized liquid using said system, and machine for preparing beverages that includes said system | Feb 04, 13 | Nov 13, 18 | MINIMMA ESPRESSO, S.L. |
| 10066618 | Variable displacement compressor with an oil check valve | Nov 05, 14 | Sep 04, 18 | MAHLE International GmbH |
| 10054119 | Operating machine | Jan 31, 12 | Aug 21, 18 | Hitachi Construction Machinery Co., Ltd. |
| 9879667 | Variable load sense spring setting for axial piston open circuit pump | Feb 27, 15 | Jan 30, 18 | DANFOSS POWER SOLUTIONS INC. |
| 9850884 | Pump | Dec 01, 15 | Dec 26, 17 | FNA GROUP, INC. |
| 9850887 | Swash plate type variable displacement compressor | Jul 15, 15 | Dec 26, 17 | KABUSHIKI KAISHA TOYOTA JIDOSHOKKI |
| Publication # | Title | Filing Date | Pub Date | Patent Owner |
|---|---|---|---|---|
| 2024/0082,487 | Syringe Pump, and Related Method and System | Nov 22, 23 | Mar 14, 24 | Not available |
| 2024/0052,816 | ADJUSTING DEVICE FOR AN AXIAL PISTON MACHINE | Oct 12, 23 | Feb 15, 24 | Not available |
| 2019/0195,207 | HYDRAULIC SYSTEM FOR WORK MACHINE | Feb 28, 19 | Jun 27, 19 | Kubota Corporation |
| 2016/0222,949 | PUMPING MECHANISM WITH PLUNGER | Jan 30, 15 | Aug 04, 16 | CATERPILLAR INC. |
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