| Patents for F04B 41 - Pumping installations or systems specially adapted for elastic fluids (2,502) |
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| 08/18/2004 | CN1521582A Variable speed control of multiple motors |
| 08/12/2004 | US20040155055 System for supply of a pressurized gas and method for verifying that a compressor is active in a system for supply of a pressurized gas |
| 08/11/2004 | EP1305522A4 Resonator pumping system |
| 08/11/2004 | CN1161543C Booster for closed compressor |
| 08/10/2004 | US6773237 Air compressor workbench |
| 08/05/2004 | WO2004065793A1 Air compressor unit inlet control |
| 08/05/2004 | US20040148932 Engine exhaust system pneumatic pump |
| 08/05/2004 | US20040148928 Rotary hydraulic machine |
| 08/04/2004 | EP1443286A1 Refrigerating equipment |
| 08/04/2004 | CN1517547A 往复泵和真空泵 Reciprocating pumps and vacuum pumps |
| 08/04/2004 | CN1160515C Baseplate for sealing case |
| 08/03/2004 | US6769267 Multistage compressor |
| 08/03/2004 | CA2362018C Refrigeration system with liquid injection desuperheating |
| 07/22/2004 | US20040141862 Air compressor unit inlet control |
| 07/14/2004 | CN1512063A Bottom plate for sealing outer shell |
| 07/13/2004 | US6761541 Foot plate for hermetic shell |
| 07/08/2004 | US20040131472 Reciprocating pump and vacuum pump |
| 07/07/2004 | EP1435459A2 Reciprocating pump and vacuum pump |
| 07/07/2004 | CN1510361A Refrigerator |
| 07/01/2004 | US20040126247 Muffler for air compressor |
| 07/01/2004 | US20040123909 System for producing and distributing compressed air |
| 07/01/2004 | DE10297112T5 Taumelkolbenpumpe mit Kohlenstoffgraphitzylinder Rotary piston pump with carbon graphite cylinder |
| 06/23/2004 | EP1431581A1 Compressed air retrieval device of compressor |
| 06/23/2004 | CN1506561A Oil retainer for forced lubrication of internal combustion engine |
| 06/16/2004 | CN1504703A Refrigerant cycling device |
| 06/10/2004 | US20040107720 Refrigerant cycling device |
| 06/09/2004 | EP1426710A1 Refrigerant cycling device |
| 06/09/2004 | EP1426620A2 Variable speed control of multiple motors |
| 06/09/2004 | DE10354719A1 Air or hydraulic oil delivery arrangement for vehicle pneumatic or hydraulic system, has valves for controlling two delivery units either individually or in group |
| 06/03/2004 | WO2004046551A1 Positive and negative pressure supply device |
| 06/03/2004 | US20040105765 Oil pump apparatus |
| 06/02/2004 | EP1149243B1 A mounting arrangement for a hermetic compressor |
| 06/01/2004 | US6742995 Air compressor assembly |
| 05/12/2004 | CN1495360A 便携式空气压缩机 Portable Air Compressor |
| 04/29/2004 | WO2003038278A9 Multiple compressor common circuit structure design |
| 04/29/2004 | US20040079226 Gas delivery system |
| 04/29/2004 | DE10248183A1 Geräuschdämpfungseinrichtung für Luftpresser Silencing device for air compressor |
| 04/28/2004 | EP1412032A1 Inflatable articles with self-contained inflation mechanism |
| 04/27/2004 | US6726457 Compressor with supercharged inlet |
| 04/21/2004 | EP1411244A2 Noise damping device for an air compressor unit |
| 04/21/2004 | EP1409150A1 Portable tool box |
| 04/07/2004 | CN1487192A Locomotive air compresser with motor supported by external bearing |
| 04/07/2004 | CN1487178A Drive device for air pump |
| 04/01/2004 | US20040060292 Rankine cycle device of internal combustion engine |
| 04/01/2004 | US20040060290 Hydraulic valve system |
| 04/01/2004 | DE202004000919U1 Air compressor with high pressure water pump has a single motor driving both pumps and with optional removable motor and water pump for separate operation |
| 03/31/2004 | CN1143958C Inflating valve connector |
| 03/30/2004 | US6712586 Gas suction pump device, gas feed adapter and gas alarm unit |
| 03/17/2004 | EP1398503A2 Compressor control module |
| 03/11/2004 | WO2004020823A1 Hydraulic pump comprising an independent drive unit |
| 03/11/2004 | US20040049322 Compressor control module |
| 03/11/2004 | US20040047745 Air compressor assembly having enclosed unpainted air tank |
| 03/11/2004 | US20040047744 Air compressor assembly with continuous auto drain tank |
| 03/11/2004 | US20040047740 Method for manufacturing air compressor assembly |
| 03/10/2004 | EP1396635A2 Bearing support for electric motor driven compressor |
| 03/06/2004 | CA2437641A1 Locomotive air compressor with an electric motor supported by an external bearing |
| 03/03/2004 | EP1392976A1 System for supply of a pressurised gas and method for verifying that a compressor is active in a system for supply of a pressurised gas |
| 03/03/2004 | EP1392975A1 System for supply of compressed air and vehicle including a system for supply of compressed air |
| 02/26/2004 | US20040037017 Fault recognition in systems with multiple circuits |
| 02/26/2004 | US20040035385 Single-ended barrel engine with double-ended, double roller pistons |
| 02/24/2004 | US6695591 Multi-stage gas compressor system |
| 02/12/2004 | US20040028540 Manually operated pump or compressor |
| 02/12/2004 | US20040028535 Air compressor with improved hand portability |
| 02/12/2004 | US20040028532 Oscillation piston pump |
| 02/12/2004 | DE10233135A1 Einrichtung zum Reduzieren des Verbrauchs von gasförmigen Medien in druckgasbetriebenen Anlagen Means for reducing the consumption of gaseous media in compressed-gas-operated plants |
| 02/05/2004 | DE19930610B4 Steuereinrichtung für einen Kompressor A control device for a compressor |
| 02/03/2004 | US6685447 Liquid cooled integrated rotordynamic motor/generator station with sealed power electronic controls |
| 01/29/2004 | DE10233128A1 Anwendung eines Kurbetriebes einer Brennkraftmaschine bei einem Kolbenverdichter für kompressible Medien Application of a health resort an internal combustion engine with a piston compressor for compressible media |
| 01/21/2004 | EP1383020A1 System for the reduction of consumption of gaseous mediums in pressure gas facilities |
| 01/15/2004 | WO2004005100A1 Vehicle air supply system |
| 01/14/2004 | EP1117931B1 Manually operated pump or compressor |
| 12/30/2003 | US6669452 Compressor with built-in motor mounted on engine of mobile structure |
| 12/25/2003 | US20030235505 Vertical engine driven air compressor |
| 12/24/2003 | WO2003106042A1 Adjustable flow texture sprayer with peristaltic pump |
| 12/18/2003 | US20030230341 Air compressor with foot-actuated condensate valve |
| 12/16/2003 | US6663341 Process fluid recycle system for a compressor assembly |
| 12/16/2003 | US6662831 Depression container |
| 12/16/2003 | US6662775 Integral air compressor for boost air in barrel engine |
| 12/11/2003 | DE10225774C1 Vacuum pump, for condensing and aggressive gases, is a dry pump with a membrane pump stage and a spiral scroll pump stage |
| 12/09/2003 | US6659739 Locomotive air compressor with an electric motor supported by an external bearing |
| 12/09/2003 | US6659736 Mounting arrangement for a hermetic compressor |
| 12/09/2003 | US6659732 Supercharging device of hermetic compressor |
| 12/09/2003 | US6659726 Variable speed control of multiple motors |
| 12/04/2003 | WO2002068858A8 System for producing and distributing compressed air |
| 12/03/2003 | EP1367219A1 Rotary hydraulic machine |
| 12/03/2003 | EP1366321A1 System for producing and distributing compressed air |
| 12/03/2003 | CN1129711C Manually operated pump or compressor |
| 12/02/2003 | US6655925 Air compressor manifold assembly |
| 11/20/2003 | US20030215339 Multi-stage gas compressor system |
| 11/20/2003 | CA2398800A1 Multi-stage gas compressor system |
| 11/19/2003 | CN2586829Y Portable multifunctional inflator |
| 11/11/2003 | US6644931 System for pumping low thermal conductivity gases |
| 10/30/2003 | US20030200874 Vacuum producing appliance |
| 10/22/2003 | CN1450264A Air pump for bicycle |
| 10/16/2003 | WO2003085263A1 Piston pump |
| 10/16/2003 | WO2003038278A3 Multiple compressor common circuit structure design |
| 10/16/2003 | US20030192619 Air pump for bicycles |
| 10/15/2003 | EP1353068A2 Air Pump For Bicycles |
| 10/14/2003 | US6631729 Valve connector |
| 10/09/2003 | WO2003083305A1 Air compressor with improved hand portability |