F04C 2/14

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Description

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


Subclass 2/14: 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

Recent Patents

Patent #TitleFiling DateIssue DatePatent Owner
11873813 Suction/compression rotating mechanism, rotary compressor and rotary engineJul 08, 19Jan 16, 24Not available
11867203 Linear actuator assembly and systemJun 30, 21Jan 09, 24Project Phoenix, LLC
11560891 Electric hydraulic actuatorDec 13, 18Jan 24, 23KYB Corporation
11519406 Oil pump having housing with seal portionNov 25, 20Dec 06, 22AISIN CORPORATION
11473574 Positive displacement pump including an unloading deviceMay 11, 21Oct 18, 22Deere & Company
11421684 Device for providing a flow and a method of varying a flow rateApr 09, 21Aug 23, 22DANA MOTION SYSTEMS ITALIA S.R.L.
11383025 Dual chamber and gear pump assembly for a high pressure delivery systemMay 07, 19Jul 12, 22Becton, Dickinson and Company
11339784 Cartridge-style fluid pump assembly with integrated pump cover mountMar 31, 20May 24, 22GHSP, Inc.
11162494 Scavenge pumpJan 23, 19Nov 02, 21PRATT & WHITNEY CANADA CORP.
11131303 Positive displacement pump including an unloading deviceJun 03, 19Sep 28, 21Deere & Company
11060534 Linear actuator assembly and systemDec 13, 19Jul 13, 21Project Phoenix, LLC
11035386 Motor oil pump assembly, steering system, and vehicleSep 26, 17Jun 15, 21BYD COMPANY LIMITED
11028847 Gear pump for venting trapped volumeMar 02, 19Jun 08, 21Brose Fahrzeugteile GmbH & Co. Kommanditgesellschaft, Würzburg
10975863 Gear pump or motor with features for determining if assembled correctlyOct 13, 17Apr 13, 21Shimadzu Corporation
10941767 Hybrid pump bearing for contamination resistanceMar 29, 18Mar 09, 21Hamilton Sunstrand Corporation
10890179 Container assembly for a pumpDec 23, 16Jan 12, 21FLUID-O-TECH GROUP S.R.L.
10883495 Scavenge/charge pump drive gear for integrated drive generatorNov 15, 17Jan 05, 21HAMILTON SUNDSTRAND CORPORATION
10738799 Linear actuator assembly and systemJun 02, 15Aug 11, 20Project Phoenix, LLC
10724519 Elastic containment assembly for a pumpMar 02, 17Jul 28, 20FLUID-O-TECH S.R.L.
10648467 Triple gear pump and fluid supplying deviceDec 07, 17May 12, 20IHI CORPORATION

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Recent Publications

Publication #TitleFiling DatePub DatePatent Owner
2024/0035,470 ELECTRIC-MOTOR-DRIVEN HYDRAULIC PUMP ACTUATORApr 08, 22Feb 01, 24Schaeffler Technologies AG & Co. KG
2019/0255,250 DUAL CHAMBER AND GEAR PUMP ASSEMBLY FOR A HIGH PRESSURE DELIVERY SYSTEMMay 07, 19Aug 22, 19Becton, Dickinson and Company

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Patents Issued To Date - By Filing Year

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