F01C 1/107

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Description

Class  F01C : ROTARY-PISTON OR OSCILLATING-PISTON MACHINES OR ENGINES


Subclass 1/107: Rotary-piston machines or engines (with axes of co-operating members non-parallel F01C 3/00; with the working-chamber walls at least partly resiliently deformable F01C 5/00; with fluid ring or the like F01C 7/00; rotary-piston machines or engines in which the working fluid is exclusively displaced by, or exclusively displaces, one or more reciprocating pistons F01B 13/00) of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of internal-axis type with the outer member having more teeth or tooth-equivalents, e.g. rollers, than the inner member with helical teeth

Recent Patents

Patent #TitleFiling DateIssue DatePatent Owner
12018687 Rotor unit and eccentric screw pumpNov 10, 21Jun 25, 24VISCOTEC PUMPEN-U. DOSIERTECHNIK GMBH
11198152 Method of lining an inner surface of a tubular and system for doing sameAug 05, 19Dec 14, 21Baker Hughes, a GE company, LLC
10837444 Helical trochoidal rotary machines with offsetFeb 29, 20Nov 17, 20Rotoliptic Technologies Incorporated
10662950 Progressing cavity device with cutter disksOct 04, 17May 26, 20Roper Pump Company
10450800 Bearing/gearing section for a PDM rotor/statorMar 08, 12Oct 22, 19Dowell -- A Division of Schlumberger Technology Corporation
10442916 Stator compound having an NBIR terpolymer elastomeric base and stators and downhole motors using the sameMay 21, 18Oct 15, 19PV Fluid Products, Inc.
10413936 Method of lining an inner surface of a tubular and system for doing sameMar 20, 17Sep 17, 19Baker Hughes, a GE company, LLC
10337328 Positive displacement rotary motion device including a pulse detonation deviceSep 20, 16Jul 02, 19Exponential Technologies, Inc.
9988513 Stator compound having an NBIR terpolymer elastomeric base and stators and downhole motors using the sameJan 24, 17Jun 05, 18PV Fluid Products, Inc.
9796835 Stator compound having an NBIR terpolymer elastomeric base and stators and downhole motors using the sameJan 24, 17Oct 24, 17PV Fluid Products, Inc.
9540877 Drilling motor valve and method of using sameNov 08, 11Jan 10, 17NATIONAL OILWELL VARCO, L.P.
9447688 Indexed positive displacement rotary motion deviceDec 09, 13Sep 20, 16EXPONENTIAL TECHNOLOGIES, INC.
9309862 Nutating fluid-mechanical energy converterNov 25, 13Apr 12, 16HALLIBURTON ENERGY SERVICES, INC.
9051780 Progressive cavity hydraulic machineJan 09, 08Jun 09, 15SCHLUMBERGER TECHNOLOGY CORPORATION
8956135 Screw compressor with asymmetric portsMay 26, 09Feb 17, 15CARRIER CORPORATION
8708643 Counter-rotatable fan gas turbine engine with axial flow positive displacement worm gas generatorAug 14, 07Apr 29, 14GENERAL ELECTRIC COMPANY
8678786 Scroll compressor with partial unloader for start-upOct 21, 10Mar 25, 14HONEYWELL INTERNATIONAL INC.
8439658 Progressing cavity pump rubber reinforcement device for rotor alignmentNov 03, 09May 14, 13BAKER HUGHES INCORPORATED
8308463 Resin screw rotor molded to a metallic shaftSep 28, 07Nov 13, 12KABUSHIKI KAISHA KOBE SEIKO SHO (KOBE STEEL, LTD.)
7837451 Non-contact seal for positive displacement capture deviceFeb 29, 08Nov 23, 10GENERAL ELECTRIC COMPANY

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Recent Publications

Publication #TitleFiling DatePub DatePatent Owner
2017/0198,582 WELL SITE PUMP WITH INTEGRATED DRIVER AND HYDRAULIC MOTOR AND METHOD OF USING SAMEMay 15, 15Jul 13, 17NATIONAL OILWELL VARCO, L.P.

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