|
| US3931718 | 17. Juli 1973 | 13. Jan. 1976 | Hall-Thermotank Products Ltd. | Refrigerant screw compression with liquid refrigerant injection |
| US3945219 | 9. Dez. 1974 | 23. März 1976 | Kabushiki Kaisha Maekawa Seisakusho | Method of and apparatus for preventing overheating of electrical motors for compressors |
| US3981703 | 15. Apr. 1975 | 21. Sept. 1976 | Stal-Refrigeration AB | Multistage vane type rotary compressor |
| US4005949 | 29. Sept. 1975 | 1. Febr. 1977 | Vilter Manufacturing Corporation | Variable capacity rotary screw compressor |
| US4014182 | 7. Okt. 1975 | 29. März 1977 | | Method of improving refrigerating capacity and coefficient of performance in a refrigerating system, and a refrigerating system for carrying out said method |
| US4059968 | 5. Apr. 1976 | 29. Nov. 1977 | H. A. Phillips & Co. | Refrigeration system |
| US4211093 | 4. Apr. 1979 | 8. Juli 1980 | | Vapor cycle cooling system |
| US4467621 | 22. Sept. 1982 | 28. Aug. 1984 | | Fluid/vacuum chamber to remove heat and heat vapor from a refrigerant fluid |
| US4742694 | 17. Apr. 1987 | 10. Mai 1988 | Nippondenso Co., Ltd. | Refrigerant apparatus |
| US5063750 | 27. Nov. 1990 | 12. Nov. 1991 | Svenska Rotor Maskiner AB | Rotary positive displacement compressor and refrigeration plant |
| US5634350 | 19. Sept. 1995 | 3. Juni 1997 | Microtecnica S.P.A. | Refrigeration system |
| US5816055 | 10. Juli 1996 | 6. Okt. 1998 | Svenska Rotor Maskiner AB | Refrigeration system anad a method for regulating the refrigeration capacity of such a system |
| US6898948 | 3. Sept. 2003 | 31. Mai 2005 | Bitzer Kuehlmaschinenbau GmbH | Screw compressor |
| US7201569 | 2. Juni 2005 | 10. Apr. 2007 | Bitzer Kuehlmaschinenbau GmbH | Screw compressor |