Class F04B : POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
Subclass 1/12: 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
| Patent # | Title | Filing Date | Issue Date | Patent Owner |
|---|---|---|---|---|
| 11867163 | Electric drive compressor system | Jul 22, 19 | Jan 09, 24 | UNICLA INTERNATIONAL LIMITED |
| 11668149 | Reliability assessable systems for actuating hydraulically actuated devices and related methods | Nov 06, 20 | Jun 06, 23 | Transocean Innovation Labs Ltd. |
| 11592000 | Servoless motor | Jul 31, 18 | Feb 28, 23 | Danfoss Power Solutions Inc. |
| 11434890 | Wobble plate piston water pump for use in a low flow gas pressure washer or a low current electric pressure washer | Jul 20, 20 | Sep 06, 22 | Not available |
| 11396872 | Axial piston-type hydraulic rotary machine | Nov 03, 17 | Jul 26, 22 | Hitachi Construction Machinery Co., Ltd. |
| 11371609 | Systems, devices, and/or methods for improving engine efficiency | Sep 30, 19 | Jun 28, 22 | Not available |
| 11326626 | Prime mover system and methods utilizing balanced flow within bi-directional power units | Feb 10, 20 | May 10, 22 | AOI |
| 11293432 | Fluid end for a piston pump functioning as a mud pump | Jun 23, 17 | Apr 05, 22 | BENTEC GmbH DRILLING & OILFIELD SYSTEMS |
| 11286775 | Rotatable piston assembly | Oct 15, 18 | Mar 29, 22 | Poisedon Fluid Power, LLC |
| 11225971 | Rotary compressor | Apr 17, 18 | Jan 18, 22 | Fujitsu General Limited |
| 11181106 | Pump assembly with electric starter | Jun 02, 17 | Nov 23, 21 | FNA Group, Inc. |
| 11022153 | Hydraulic apparatus comprising synthetically commutated machine, and operating method | Jan 13, 17 | Jun 01, 21 | Artemis Intelligent Power Limited |
| 11009016 | Double acting positive displacement fluid pump | May 23, 17 | May 18, 21 | Oldenamp B.V. |
| 10900472 | Pressure compensating pump | Sep 06, 17 | Jan 26, 21 | Hydro-Gear Limited Partnership |
| 10871174 | Prime mover system and methods utilizing balanced flow within bi-directional power units | Nov 21, 18 | Dec 22, 20 | AOl |
| 10753347 | Wobble plate piston pump for low flow gas and electric water pressure washers | Jun 25, 18 | Aug 25, 20 | Active Products Inc. |
| 10694687 | Electric tree felling head and associated control system for a forestry vehicle | Aug 11, 17 | Jun 30, 20 | Deere & Company |
| 10598162 | Pump and a desalination system including the pump | Oct 20, 16 | Mar 24, 20 | KATADYN DESALINATION, LLC |
| 10598146 | Hydraulic pump-motor | Aug 08, 14 | Mar 24, 20 | Komatsu Ltd. |
| 10533544 | Swash plate type liquid-pressure rotating device and method of manufacturing same | Mar 31, 15 | Jan 14, 20 | Kawasaki Jukogyo Kabushiki Kaisha |
| Publication # | Title | Filing Date | Pub Date | Patent Owner |
|---|---|---|---|---|
| 2022/0010,786 | PISTON AND HYDRAULIC PUMP OR MOTOR | Nov 15, 19 | Jan 13, 22 | Komatsu Ltd. |
| 2020/0011,306 | AXIAL-PISTON MOTOR AND CYCLIC PROCESS DEVICE | Sep 16, 19 | Jan 09, 20 | Volkswagen Aktiengesellschaft |
| 2019/0360,473 | WOBBLE PUMP COMPRISING A WOBBLE PLATE | Jan 16, 18 | Nov 28, 19 | Not available |
| 2019/0003,466 | Hydrostatic Positive-Displacement Machine Piston for the Hydrostatic Positive-Displacement Machine, and Cylinder Drum for the Hydrostatic Positive-Displacement Machine | Jun 14, 18 | Jan 03, 19 | Not available |
| 2018/0058,444 | Pump housing with multiple discharge valves | Aug 23, 16 | Mar 01, 18 | Not available |
| 2017/0350,376 | HYDRAULIC PUMP | Sep 03, 15 | Dec 07, 17 | HYUNDAI CONSTRUCTION EQUIPMENT |
| 2017/0284,381 | DOUBLE- HEADED PISTON TYPE SWASH PLATE COMPRESSOR | Feb 24, 17 | Oct 05, 17 | KABUSHIKI KAISHA TOYOTA JIDOSHOKKI |
| 2017/0184,080 | SHOE FOR HYDRAULIC ROTARY DEVICE, AND HYDRAULIC ROTARY DEVICE | Jan 05, 15 | Jun 29, 17 | KAWASAKI JUKOGYO KABUSHIKI KAISHA |
| 2017/0030,341 | MULTI-PLUNGER CRYOGENIC PUMP HAVING INTAKE MANIFOLD | Jul 27, 15 | Feb 02, 17 | CATERPILLAR INC. |
| 2016/0025,080 | APPARATUS INCLUDING SWASHPLATES FIXED ON SHAFT ASSEMBLY AND PISTON ASSEMBLIES | Jul 16, 15 | Jan 28, 16 | Not available |
| 2016/0003,237 | PUMP DISCHARGE FLOW-RATE CONTROL DEVICE | Mar 06, 14 | Jan 07, 16 | KYB CORPORATION |
| 2015/0273,137 | CONTINUOUS FLUID DELIVERY SYSTEM AND METHOD | Jun 12, 15 | Oct 01, 15 | BAYER HEALTHCARE LLC |
| 2015/0275,891 | INTEGRATED MOTOR AND PUMP ASSEMBLY | Mar 27, 15 | Oct 01, 15 | SCHLUMBERGER TECHNOLOGY CORPORATION |
| 2015/0086,386 | MULTI-CHAMBER PUMP APPARATUS, SYSTEMS, AND METHODS | Apr 19, 13 | Mar 26, 15 | SIEMENS HEALTHCARE DIAGNOSTICS INC. |
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