Patents
Sitemap › F04 - Positive-displacement machines for liquids; Pumps for liquids or elastic fluids › F04B - Positive-displacement machines for liquids; Pumps › F04B 37 - Pumps specially adapted for elastic fluids and having pertinent characteristics not provided for in, or of interest apart from, groups
Patents for F04B 37 - Pumps specially adapted for elastic fluids and having pertinent characteristics not provided for in, or of interest apart from, groups (3,029)
09/1999
09/28/1999US5957667 Oilless compressor with a pressurizable crankcase and motor containment vessel
09/22/1999CN2339785Y High-pressure oil-filling pump
09/22/1999CN2339784Y Super-pressure pump
09/22/1999CN2339783Y Automobile air compressor with automatic radiating guide-blade impeller
09/22/1999CN1229456A Getter pump especially suitable for the use upstream in proximity and coaxially with respect to turbomolecular pump
09/01/1999CN2336110Y Hand vacuum pump
08/1999
08/31/1999US5944049 Apparatus and method for regulating a pressure in a chamber
08/26/1999DE19907492A1 Carbon dioxide compressor for air conditioning systems in which narrow oil passages are avoided
08/19/1999WO1999041501A1 Low noise high performance vacuum pump
08/10/1999US5935395 Substrate processing apparatus with non-evaporable getter pump
07/1999
07/29/1999WO1999037919A1 Trap device and trap system
07/29/1999WO1999037918A1 Cryopump with an exhaust filter
07/28/1999EP0931938A1 Vacuum pump with dust collecting function
07/21/1999EP0929744A2 Fluid displacement system
07/13/1999US5921755 Dry vacuum pump
06/1999
06/30/1999EP0926258A2 Getter system for purifying the working atmosphere in physical vapor deposition processes
06/30/1999CN1221042A Getter system for purifying work atmosphere in processes of physical vapor deposition
06/23/1999CN1220345A Fast vacuum sealing device and its making method and fast sealing method
06/23/1999CA2254515A1 Getter system for purifying the work atmosphere in the processes of physical vapor deposition
06/22/1999US5913662 For evacuating at least two chambers
06/22/1999CA2102921C Process for purifying exhaust gases, especially from vacuum pyrolysis installations
06/16/1999EP0922166A1 Piston vacuum pump with discharge valve
06/15/1999US5911560 Getter pump module and system
06/09/1999EP0921311A2 Cryopump
06/02/1999EP0919722A2 Regeneration of a cryopump
06/02/1999EP0918934A1 Getter pump especially suitable for the use upstream, in proximity and coaxially with respect to a turbomolecular pump
06/02/1999EP0918933A1 Getter pump with one-piece supporting framework of a plurality of non-evaporable getter elements mutually parallel
05/1999
05/26/1999EP0918159A2 Cryopump
05/26/1999CN2320819Y External pumping vacuum equipment
05/26/1999CN1217768A Getter pump of single-piece supporting framework with plurality of parallel non-evaporable getter elements
05/25/1999US5906103 Convection-shielded cryopump
05/25/1999US5906102 Cryopump with gas heated exhaust valve and method of warming surfaces of an exhaust valve
05/25/1999US5906055 Heat generation through mechanical molecular gas agitation
05/20/1999WO1999024714A1 High pressure fuel supply system for natural gas vehicles
05/12/1999DE19749729A1 Piston vacuum pump
05/11/1999US5901751 Restrictor shield having a variable effective throughout area
05/11/1999US5901558 Cold trap
05/05/1999CN1215799A Getter pump with high velocity of gas sorption
04/1999
04/21/1999EP0910106A1 Getter pump with high velocity of gas sorption
04/21/1999CN1214638A Combination cryopump/getter pump and method for regenerating same
04/14/1999EP0682749B1 High pressure pump for accurate dosing of liquids
04/14/1999EP0671980B1 Dispensing device
04/07/1999EP0906635A1 Pumping device by non-vaporisable getter and method for using this getter
03/1999
03/30/1999US5888050 Precision high pressure control assembly
03/30/1999US5887438 Low profile in line cryogenic water pump
03/23/1999US5884488 High pressure fuel supply system for natural gas vehicles
03/11/1999WO1999011931A1 Cryopump with selective condensation and defrost
03/10/1999EP0900940A2 Method of operating a vacuum pump
03/09/1999US5879139 Vacuum pump with gas heating
03/09/1999US5879134 In situ getter pump system and method
02/1999
02/25/1999WO1999009317A1 Cold trap with integral gate valve
02/24/1999EP0898083A2 Vacuum pumping system
02/24/1999CN2308726Y Direct linkage rotary blade vacuum pump
02/16/1999US5871336 For analyzing a sample fluid
02/11/1999WO1999006699A1 Method for evacuating a wet gas, treatment device for carrying out this method and suction pump for a treatment device of this type
02/10/1999EP0895484A1 Combination cryopump/getter pump and method for regenerating same
02/04/1999DE19732808A1 Method for evacuating the sterilisation chamber of a steam sterilisation unit - with the medium used during evacuation cooled along its flow path in such a way that it is in or is converted into a liquid state in the delivery unit
02/03/1999CN2306331Y Non-water cooled non-metallic piston ring vacuum pump
01/1999
01/28/1999WO1999004325A1 An apparatus and method for regulating a pressure in a chamber
01/27/1999EP0892662A1 Throttle cycle cryopumping system for group i gases
01/26/1999US5862671 Purge and rough cryopump regeneration process, cryopump and controller
01/13/1999EP0823021A4 High pressure gas compressor
01/05/1999US5855118 Combination cryopump/getter pump and method for regenerating same
12/1998
12/23/1998WO1998058173A1 Getter pump especially suitable for the use upstream, in proximity and coaxially with respect to a turbomolecular pump
12/23/1998CA2263559A1 Getter pump especially suitable for the use upstream, in proximity and coaxially with respect to a turbomolecular pump
12/15/1998US5848873 Vacuum pumps
11/1998
11/24/1998US5839289 Multi-step pressure reducing apparatus and method
11/18/1998CN2297562Y 便携式真空泵 Portable pumps
11/04/1998EP0875675A2 Engine supercharging system using screw supercharger
11/03/1998US5829258 Multi-step pressure reducing method and apparatus
10/1998
10/29/1998WO1998048170A1 Dry vacuum pump
10/29/1998WO1998048168A2 In situ getter pump system and method
10/13/1998US5819545 Cryopump with selective condensation and defrost
09/1998
09/30/1998CN2292916Y 真空泵 Vacuum pump
09/23/1998EP0865595A1 Low-temperature refrigerator with cold head and a process for optimising said cold head for a desired temperature range
09/17/1998WO1998040629A1 Vacuum pumping apparatus
09/11/1998WO1998039570A1 Vacuum pump
09/10/1998DE19709206A1 Vakuumpumpe Vacuum pump
09/01/1998US5799493 Corrosion resistant cryopump
08/1998
08/27/1998WO1998037325A1 Getter pump with one-piece supporting framework of a plurality of non-evaporable getter elements mutually parallel
08/25/1998US5797719 Precision high pressure control assembly
08/25/1998CA2000152C Evacuation apparatus
08/12/1998EP0857876A2 Method and apparatus to control the suction capacitiy of vacuum pumps
08/12/1998CN1190158A Multi-step pressure reducing apparatus and method
08/06/1998WO1998034029A1 Cryopump with improved shielding
08/04/1998US5788463 Manual vacuum producing system having pressure indicator
07/1998
07/22/1998CN1188223A Multi-step pressure reducing apparatus
07/22/1998CN1188222A Multi-step pressure reducing method and apparatus
07/21/1998US5782621 Manual pump with inherent vacuum limit
07/21/1998US5782096 Cryopump with improved shielding
07/01/1998CN2285373Y Small type air compressor
06/1998
06/30/1998US5772404 Compact getter pump with nested thermally insulating shields
06/25/1998WO1998016739A3 Fluid displacement system
06/17/1998EP0847789A1 Trapping device
05/1998
05/20/1998CN2282079Y Pumping device for metal solution
05/13/1998EP0841481A2 Compressing carbon dioxide or nitrogen oxide
04/1998
04/29/1998CN1038205C Thermally insulating jacket under reversible vacuum and its application
04/23/1998WO1998016739A2 Fluid displacement system
04/23/1998CA2266452A1 Fluid displacement system
03/1998
03/17/1998US5727392 Convection-shielded cryopump
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