F04C 2/18

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Description

Class  F04C : ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS


Subclass 2/18: Rotary-piston machines or pumps (with non-parallel axes of co-operating members F04C 3/00; with the working-chamber walls at least partly resiliently deformable F04C 5/00; with fluid ring or the like F04C 7/00; rotary-piston pumps specially adapted for elastic fluids F04C 18/00, F04C 19/00; rotary-piston machines or pumps in which the working-fluid is exclusively displaced by, or exclusively displaces, one or more reciprocating pistons F04B) of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type with toothed rotary pistons with similar tooth forms (F04C 2/16 takes precedence)

Recent Patents

Patent #TitleFiling DateIssue DatePatent Owner
12247617 Cavitation resistant journal bearingDec 08, 22Mar 11, 25HAMILTON SUNDSTRAND CORPORATION
12228132 Variable displacement gerotor pumpApr 18, 23Feb 18, 25Not available
12228133 Rotary positive displacement pump with a guardJan 19, 22Feb 18, 25Alfa Laval Corporate AB
12221959 Bushing assembly and positive displacement rotary pump comprising said bushing assemblyDec 11, 20Feb 11, 25Settima Meccanica S.r.l.
12203485 Diesel exhaust fluid pump system and methodSep 02, 22Jan 21, 25Paragon Products, LLC
12140145 Gear pumpOct 19, 23Nov 12, 24Valeo Powertrain GmbH
12092108 Bearing mechanical joining methodsMay 23, 22Sep 17, 24HAMILTON SUNDSTRAND CORPORATION
12060883 Pump integrated with two independently driven prime moversJun 08, 23Aug 13, 24Project Phoenix, LLC
12060878 System to pump fluid and control thereofJun 25, 21Aug 13, 24Project Phoenix, LLC
12049951 Pump stage assembly, external gear pump, use of a pump stage assembly and vehicle transmissionJun 17, 20Jul 30, 24Vitesco Technologies GmbH
12044238 Gear pump or motor with communication paths to suction and discharge in closed space between the drive and driven gearsJan 30, 20Jul 23, 24Shimadzu Corporation
12025123 Pump configuration including a purge valve for removing airlocksAug 17, 21Jul 02, 24Caterpillar Inc.
11975350 Adhesive dispensing system with convertible nozzle assembliesMar 14, 23May 07, 24Nordson Corporation
11905949 Controlling pressure on a journal bearingJul 26, 22Feb 20, 24EATON INTELLIGENT POWER LIMITED
11867203 Linear actuator assembly and systemJun 30, 21Jan 09, 24Project Phoenix, LLC
11867281 Pump stage assembly, external gear pump, use of a pump stage assembly and vehicle transmissionJun 17, 20Jan 09, 24Vitesco Technologies GmbH
11852142 Gear pump with floating bearing with receiver facesNov 16, 21Dec 26, 23IHI Corporation
11846283 System to pump fluid and control thereofNov 06, 20Dec 19, 23Project Phoenix, LLC
11766694 Adhesive dispensing system with convertible nozzle assembliesSep 15, 21Sep 26, 23Nordson Corporation
11732711 External gear pumpJul 28, 21Aug 22, 23IHI Corporation

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Recent Publications

Publication #TitleFiling DatePub DatePatent Owner
2024/0271,619 HYDRAULIC PUMP UNIT HAVING KNURLED CONNECTION OF A PILLOW BLOCK TO A HOUSINGMay 02, 22Aug 15, 24Schaeffler Technologies AG & Co. KG
2024/0141,894 Method of Handling Gear Pump, Control System, Coating Apparatus and Robot SystemMar 03, 21May 02, 24Not available
2024/0140,612 GEAR PUMP, DRIVE DEVICE AND ADJUSTABLE-PITCH PROPELLEROct 27, 23May 02, 24Not available
2024/0125,323 PUMP CONFIGURATION INCLUDING A PURGE VALVE FOR REMOVING AIRLOCKSDec 22, 23Apr 18, 24Caterpillar Inc.
2024/0011,486 ROTARY GEAR PUMP WITH A CENTERED DRIVE GEARNov 25, 20Jan 11, 24Not available
2021/0215,156 VOLUMETRIC GEAR MACHINE WITH HELICAL TEETHMay 14, 19Jul 15, 21Not available
2020/0025,195 CAVITATION RESISTANT GEAR DRIVEN FUEL PUMPJul 17, 18Jan 23, 20Not available
2020/0003,208 ADAPTIVE SELF-SEALING MICROFLUIDIC GEAR PUMPJun 27, 19Jan 02, 20Not available
2019/0242,380 Gear PumpApr 19, 19Aug 08, 19Not available
2019/0211,819 EXTERNAL GEAR PUMP FOR A WASTE HEAT RECOVERY SYSTEMJun 20, 17Jul 11, 19Not available
2019/0063,431 EXTERNAL GEAR PUMPAug 13, 18Feb 28, 19JTEKT Corporation
2018/0320,686 GEAR PUMP DEVICE FOR RUBBER EXTRUSIONOct 03, 16Nov 08, 18Sumitomo Rubber Industries, Ltd.; NAKATA ENGINEERING CO., LTD.;
2018/0142,685 BEARING FACES WITH FLUID CHANNELS FOR GEAR PUMPSJan 08, 18May 24, 18Not available
2018/0072,147 RECESS-MOUNTED HYDRAULIC PUMP CARTRIDGE AND WORK VEHICLE DRIVETRAIN THEREWITHNov 20, 17Mar 15, 18DEERE & COMPANY
2017/0342,980 ANTI-DECOMPRESSION GEAR FUEL PUMP FOR BROKEN BUBBLESMay 30, 16Nov 30, 17Not available
2017/0284,390 HEATING/COOLING SYSTEM FOR INDWELLING HEAT EXCHANGE CATHETERApr 18, 17Oct 05, 17Not available
2015/0330,387 GEARED HYDRAULIC MACHINE AND RELATIVE GEAR WHEELDec 16, 13Nov 19, 15DANFOSS POWER SOLUTIONS, S.R.L., DONFOSS POWER SOLUTIONS S.R.L.,

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Patents Issued To Date - By Filing Year

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