| Patents for F04C 3 - Rotary-piston machines or pumps, with non-parallel axes of movement of co-operating members, e.g. of screw type (370) |
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| 02/18/2010 | DE102008038625A1 Stirnzahnradpumpe Spur gear pump |
| 02/11/2010 | US20100034680 Rotary Piston Machine |
| 01/26/2010 | US7650871 Rotary compressor and expander, and rotary engine using the same |
| 11/25/2009 | CN201351604Y Screw feeding device |
| 11/19/2009 | DE102008023475A1 Hydromaschine Hydraulic machine |
| 10/01/2009 | WO2009117993A2 Low pressure pump |
| 10/01/2009 | DE102008016293A1 Niederdruckpumpe Low-pressure pump |
| 09/30/2009 | CN201318282Y Vertical waste oil screw pump |
| 09/03/2009 | DE102008012374A1 Rotationskolbenmachine Rotary piston machine |
| 07/09/2009 | DE102008003240A1 Delivery system, has drift rotor driven by drive rotor, and front and rear drive cases that are flow-connected over connection channel, where front case is flow-connected with drive side of system |
| 06/17/2009 | EP1540116A4 Insulating concrete form and welded wire form tie |
| 06/10/2009 | EP2066903A1 Pump |
| 05/27/2009 | CN101443554A 旋转活塞机械 Rotary piston machine |
| 05/07/2009 | DE102007054321A1 Kolbenmaschine Piston engine |
| 04/30/2009 | WO2009010047A4 Spur gear-type recirculation pump |
| 04/22/2009 | EP2049770A1 Rotary nasal engine with internal combustion |
| 04/15/2009 | CN100478544C Rotor engine |
| 04/02/2009 | US20090087330 Fluid pump |
| 03/05/2009 | WO2009026882A1 Method for converting compressed air energy into electric energy and carrying out said method by means of an air motor |
| 03/05/2009 | WO2009010047A3 Spur gear-type recirculation pump |
| 02/04/2009 | CN101357281A Chloroethylene gas-liquid filteration and separation device |
| 01/22/2009 | WO2009010047A2 Spur gear-type recirculation pump |
| 01/22/2009 | DE102007033659A1 Stirnzahnradumwälzpumpe Spur gear circulation pump |
| 01/21/2009 | EP2016287A1 Rotary piston machine |
| 01/08/2009 | DE202008013877U1 Vorrichtung zum Erzeugen eines oszillierenden Fluidstroms sowie Vorrichtung zum Erzeugen eines oszillierenden Hubes eines Werkzeugs Apparatus for generating an oscillating fluid flow, as well as apparatus for generating an oscillating stroke of a tool |
| 01/02/2009 | DE102007030853A1 Rotary piston engine e.g. internal combustion engine, has opening partially overlapping gas inlet opening in azimuthal angle region, and control element that is position adjustable to change dimension, initial angle or end angle of region |
| 12/04/2008 | DE102008013991A1 Pumpe oder Motor Pump or motor |
| 11/26/2008 | CN101311537A Tapered rotor assemblies for a supercharger |
| 11/25/2008 | US7457115 Fluid impelling device and electronic apparatus |
| 10/01/2008 | EP1974125A1 Rotary machine and combustion engine |
| 09/17/2008 | EP1392978B1 Dual capacity compressor |
| 09/11/2008 | US20080219876 Rotary Piston Machine |
| 09/11/2008 | DE102006009197B4 Schwenkkolbenmaschine Rotary-piston engine |
| 08/28/2008 | US20080202466 Rotary internal combustion engine and rotary compressor |
| 08/26/2008 | US7415804 Isulated concrete form having welded wire form tie |
| 08/20/2008 | EP1958757A2 Extruder |
| 07/23/2008 | CN201090437Y Volume type pump |
| 06/24/2008 | US7390181 Rotating piston machine |
| 03/27/2008 | WO2008036004A1 Positive displacement rotary machine provided with a double-sphere chamber |
| 03/20/2008 | WO2008031922A1 Pump |
| 03/06/2008 | WO2007142557A3 Positive-displacement rotary machine |
| 03/06/2008 | WO2007142556A8 Detonation internal combustion engine with a floating piston and a method for the control thereof |
| 03/06/2008 | WO2007142553A3 Positive-displacement rotary machine |
| 02/28/2008 | WO2008024030A1 Chamber of a positive displacement rotary machine (variants) and the stage thereof consisting of several chambers |
| 02/14/2008 | WO2008018841A1 Rotary nasal engine with internal combustion |
| 02/07/2008 | US20080031757 Spherical fluid machines |
| 01/31/2008 | WO2007128303B1 Rotary piston machine |
| 01/17/2008 | WO2008008003A1 Method for operating a positive displacement rotary machine and a device for carrying out said method |
| 01/17/2008 | CA2656886A1 Method of operation of a spherical positive displacement rotary machine and devices for carrying out said method |
| 12/13/2007 | WO2007142556A2 Detonation internal combustion engine with a floating piston and a method for the control thereof |
| 12/13/2007 | WO2007142553A2 Positive-displacement rotary machine |
| 11/28/2007 | EP1859170A1 Rotary piston machine |
| 11/15/2007 | WO2007128303A1 Rotary piston machine |
| 11/15/2007 | DE102007022418A1 Drehkolbenmaschine Rotary engine |
| 11/01/2007 | WO2007122007A1 Rotary pistons machine |
| 10/31/2007 | EP1849958A1 Rotary pistons machine |
| 10/02/2007 | US7275920 Rotary piston machine |
| 09/27/2007 | WO2007107503A1 Piston unit of rotary pump |
| 09/18/2007 | US7270106 Free-planetary gear moderated nutating (athena) engine |
| 09/12/2007 | EP1830904A1 Artificial heart |
| 09/06/2007 | US20070207049 Twin-plate rotary compressor |
| 08/23/2007 | DE102006009198A1 Swiveling piston engine, e.g. for internal combustion engines, pumps or compressors, has a casing for pistons running jointly in the casing on a hinge pin fixed to the casing |
| 08/23/2007 | DE102006009197A1 Swing piston machine, for a motor or pump or compressor, has a support for piston rotation around an axis and a further support to reverse the swing movement in its reciprocating swing action |
| 08/15/2007 | EP1633956B1 Rotary-piston machine |
| 08/08/2007 | EP1409845B1 Spherical fluid machine with flow control mechanism |
| 08/02/2007 | US20070175435 Rotary compressor and expander, and rotary engine using the same |
| 07/12/2007 | WO2007078206A1 Rotary machine and combustion engine |
| 05/08/2007 | US7214045 Spherical fluid machine with flow control mechanism |
| 03/29/2007 | WO2007034960A1 Rotary machine |
| 02/14/2007 | CN1300460C Dual capacity compressor |
| 01/24/2007 | EP1664540B1 Rotating piston machine |
| 11/28/2006 | CA2183595C Perfected twin-screw pump, particularly suitable for the pumping of biphase fluids in a submarine environment |
| 11/23/2006 | US20060263228 Rotating piston machine |
| 11/16/2006 | US20060257277 Rotary piston machine |
| 09/21/2006 | WO2006098610A1 Hydromechanical device |
| 09/21/2006 | WO2006097092A1 Rotary piston machine |
| 09/21/2006 | DE102006012481A1 Hydraulic pump designed as rotary piston machine combines casings of electric motor and pump, and includes driving and driven components in angular configuration with axial play |
| 09/07/2006 | DE10361566B4 Schwenkkolbenmaschine Rotary-piston engine |
| 09/06/2006 | CN1829853A Rotary compressor, expander and rotary piston machine used thereof |
| 08/17/2006 | DE102005023721B3 Swiveling piston engine e.g. for combustion engines, has housing with two pistons arranged, which move around an axis of rotation and define working chamber, where first piston and or second piston are connected to driver |
| 06/29/2006 | WO2006067588A1 Artificial heart |
| 06/07/2006 | EP1664541A1 Rotating piston machine |
| 06/07/2006 | EP1664540A1 Rotating piston machine |
| 03/29/2006 | EP1123191B1 Extruder and its use |
| 03/15/2006 | EP1633956A1 Rotary-piston machine |
| 12/15/2005 | WO2005119067A1 Twin-plate rotary compressor |
| 10/26/2005 | CN1688816A Insulating concrete form and welded wire form tie |
| 06/15/2005 | EP1540116A2 Insulating concrete form and welded wire form tie |
| 05/19/2005 | DE102004044301A1 Rotating piston machine has electric motor installed in motor casing co-axially with driving component of machine's rotor, with machine casing and motor casing interconnected, and electric motor and rotor running on common axis |
| 03/17/2005 | WO2005024237A1 Rotating piston machine |
| 03/17/2005 | WO2005024236A1 Rotating piston machine |
| 03/17/2005 | CA2538004A1 Rotary piston machine |
| 03/17/2005 | CA2536279A1 Rotary piston machine |
| 01/19/2005 | CN1185074C Laser repairing process for failed gas compressor rotor |
| 12/29/2004 | WO2004113683A1 Rotary-piston machine |
| 09/22/2004 | EP1097305B1 Screw pump |
| 08/26/2004 | WO2004022881A3 Insulating concrete form and welded wire form tie |
| 04/21/2004 | EP1409845A1 Spherical fluid machine with flow control mechanism |
| 03/25/2004 | DE10242136A1 Quiet running Roots pump has a spacing between the two pumping wheels and driven by a central worm gear |
| 03/18/2004 | WO2004022881A2 Insulating concrete form and welded wire form tie |