| 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) |
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| 11/19/1992 | EP0514348A1 A process for the sorption of residual gas by means of a non-evaporated barium getter alloy |
| 11/10/1992 | US5161955 High vacuum pump using bulk getter material |
| 10/27/1992 | US5157928 Electronically controlled cryopump |
| 10/20/1992 | US5156007 Cryopump with improved second stage passageway |
| 10/14/1992 | EP0344290B1 Vacuum apparatus |
| 10/13/1992 | US5154582 Rough vacuum pump using bulk getter material |
| 10/13/1992 | US5154063 Multi-stage cold accumulation type refrigerator and cooling device including the same |
| 10/01/1992 | WO1992016749A1 Reciprocating vacuum pumps |
| 09/30/1992 | EP0506133A1 A cryopump |
| 09/29/1992 | CA2064324A1 Cryopump |
| 09/17/1992 | WO1992015786A1 Device for supplying a multi-stage dry-running vacuum pump with inert gas |
| 09/16/1992 | EP0504053A1 Autonomous container for treating an object under vacuum and transfer lock |
| 09/08/1992 | US5144810 Multi-stage cold accumulation type refrigerator and cooling device including the same |
| 08/20/1992 | WO1992014057A1 Cryopump with improved second stage passageway |
| 08/11/1992 | US5137050 Pressure relief valve and cryopump utilizing the same |
| 07/22/1992 | CN1017547B Waterless bottled oxygen 3-stage verticle oxygen booster |
| 07/15/1992 | EP0332658A4 Enhanced density modified isoplanar process |
| 07/14/1992 | US5129788 Heat-driven pump |
| 07/02/1992 | DE4041725A1 Coating smooth metal e.g. inside wall of cryo-pump with porous adsorbent - by spraying granules of e.g. activated charcoal onto wet liq. cement adhesive, after cleaning metal surface |
| 06/02/1992 | US5118251 Compound turbomolecular vacuum pump having two rotary shafts and delivering to atmospheric pressure |
| 05/20/1992 | WO1992008894A1 Process for regenerating a cryopump and suitable cryopump for implementing this process |
| 05/20/1992 | CA2096419A1 Process for regenerating a cryopump and suitable cryopump for implementing this process |
| 05/19/1992 | US5114316 Method of regenerating a vacuum pumping device |
| 05/12/1992 | US5111667 Two-stage cryopump |
| 05/05/1992 | CA1299970C Vacuum security valve having a buffer volume |
| 04/21/1992 | US5105852 Tubular valve arrangement |
| 03/24/1992 | CA1297736C Portable vacuum pump for desoldering purposes |
| 03/18/1992 | EP0475701A1 Heat-driven pump |
| 03/03/1992 | US5092130 Alloys of gadolinium, erbium, and/or rhodium |
| 02/19/1992 | EP0347473B1 Cryogenic condensation pump |
| 02/18/1992 | US5088895 Vacuum pumping apparatus |
| 01/28/1992 | US5083445 Cryopump |
| 01/08/1992 | EP0464571A1 Device for the safe managing of a vacuum pump |
| 01/08/1992 | CN2092613U Cryogenic compressors |
| 12/04/1991 | EP0459019A2 Fast cycle cryogenic flex probe |
| 11/27/1991 | EP0457895A1 Device for continuously cleansing the exhaust gases of a vacuum installation. |
| 11/13/1991 | CN1014740B Pressure reducing device for compressor |
| 11/05/1991 | US5062271 Evacuation apparatus and evacuation method |
| 10/15/1991 | US5056991 Cryogas pump |
| 10/15/1991 | US5056319 Refrigerator-operated apparatus |
| 10/08/1991 | CA1290308C Vacuum controller |
| 10/02/1991 | EP0448738A1 Device working with a cryogenic refrigerator |
| 09/17/1991 | US5049042 Anti-return safety apparatus |
| 09/17/1991 | US5048559 Valve and apparatus using said valve |
| 09/11/1991 | EP0445503A1 Two stage cryopump |
| 09/11/1991 | EP0445241A1 Vacuum pumping group. |
| 08/13/1991 | US5039280 Pump assembly for obtaining a high vacuum |
| 07/03/1991 | EP0435291A1 Combined turbomolecular vacuum pump with two shafts and discharge at atmospheric pressure |
| 06/27/1991 | WO1991008825A1 Device for continuously cleansing the exhaust gases of a vacuum installation |
| 06/11/1991 | US5022829 Vacuum apparatus |
| 06/04/1991 | US5021669 Process and system for the control of the focusing of a beam of monopolar charged particles |
| 05/14/1991 | US5014517 Cryogenic sorption pump |
| 05/08/1991 | EP0347452A4 Counterflow leak detector with high and low sensitivity operating modes |
| 05/02/1991 | WO1991005955A1 Adsorption pump and method of measuring gas density in enclosed space by means of said adsorption pump |
| 04/30/1991 | US5011381 Hand-held vacuum pump vacuum release |
| 04/24/1991 | CN2075711U Full cooling reciprocating vacuum pump |
| 04/23/1991 | US5009073 Fast cycle cryogenic flex probe |
| 04/18/1991 | WO1991005166A1 Vacuum pumping group |
| 04/09/1991 | US5005363 Cryogenic sorption pump |
| 03/26/1991 | US5001903 Optimally staged cryopump |
| 03/19/1991 | US5000007 Cryogenic pump operated with a two-stage refrigerator |
| 03/06/1991 | EP0415317A2 No-return security apparatus |
| 03/06/1991 | EP0415311A2 Valve and device using the same |
| 02/26/1991 | US4995794 Vacuum pumps |
| 02/21/1991 | WO1991002160A1 A piston pump or compressor for handling both gas and wet gas, and a suction emptying system for lpg gas cylinders equipped with such a pump |
| 01/29/1991 | CA1279568C Regenerable cryosorption pump with movable physical barrier and physical barrier thereof |
| 01/23/1991 | EP0394452A4 Cryogenic adsorption pump |
| 01/23/1991 | EP0363497A4 Cryogenic adsorption pump |
| 01/15/1991 | US4984974 Screw type vacuum pump with introduced inert gas |
| 12/25/1990 | US4979369 Cryogenic sorption pump |
| 12/11/1990 | US4976111 Cryogenic condensation pump |
| 12/04/1990 | US4975027 Extreme pressure fluid sample transfer pump |
| 11/28/1990 | EP0399390A2 Device and process for controlling the focusing of a monopolar charged particle beam |
| 11/27/1990 | US4973227 Metal hydride, alloy |
| 11/14/1990 | EP0397051A1 Evacuation apparatus and evacuation method |
| 10/31/1990 | EP0394452A1 Cryogenic adsorption pump |
| 10/30/1990 | US4966016 Cryopump with multiple refrigerators |
| 10/09/1990 | CA1275091A1 Use of perfluoropolyethers in mechanical pumps |
| 10/08/1990 | WO1990012231A1 Pressure relief valve and cryopump utilizing the same |
| 10/08/1990 | CA2049029A1 Pressure relief valve and cryopump utilizing the same |
| 09/25/1990 | US4958499 Method and apparatus for checking the operation of a refrigerator-operated cryogenic pump |
| 09/11/1990 | US4955204 Cryostat including heater to heat a target |
| 09/05/1990 | EP0384922A1 Cryopump operating with a two-stage refrigerator |
| 09/04/1990 | US4954047 Evacuation apparatus |
| 09/04/1990 | US4953359 Method of adapting a two-stage refrigerator cryopump to a specific gas |
| 08/01/1990 | EP0379992A1 Cryopump |
| 08/01/1990 | CN1009025B Vacuum distributor |
| 07/11/1990 | EP0377030A1 Regenerable cryosorption pump with movable physical barrier and physical barrier thereof |
| 07/03/1990 | US4938667 Method for the manufacture of a vacuum insulating structure and an insulating structure so produced |
| 06/28/1990 | WO1990007061A1 Pumping system for obtaining high vacuum |
| 06/27/1990 | EP0112907B2 Means for periodic desorption of a cryopump |
| 06/20/1990 | EP0373975A1 Pumping unit for obstaining a high vacuum |
| 06/19/1990 | US4934908 Vacuum pump systems |
| 06/13/1990 | EP0214277B1 Cryopump regeneration method and apparatus |
| 05/30/1990 | EP0370702A1 Apparatus comprising a high vacuum chamber |
| 05/23/1990 | EP0179798B1 Vacuum pump purging apparatus |
| 05/22/1990 | US4926648 Turbomolecular pump and method of operating the same |
| 05/17/1990 | WO1990002878A3 Electronically controlled cryopump |
| 04/24/1990 | US4918930 Electronically controlled cryopump |
| 04/24/1990 | CA1268048A1 Cryopump with improved second stage array |