defining an helical chamber

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Patents Grantslast 30 patents

Information Patent Grant
Countercurrent heat transfer device for solid particle streams
- Patent number 4,639,217
- Issue date Jan 27, 1987
- D. Carlos Adams
- F28 - HEAT EXCHANGE IN GENERAL
Information Patent Grant
Method and apparatus for drying or heat treating granular material
- Patent number 4,597,737
- Issue date Jul 1, 1986
- McGill University
- Vijaya G. S. Raghavan
- F26 - DRYING
Information Patent Grant
3385581
- Patent number 3,385,581
- Issue date May 28, 1968
- F28 - HEAT EXCHANGE IN GENERAL
Information Patent Grant
3201100
- Patent number 3,201,100
- Issue date Aug 17, 1965
- F28 - HEAT EXCHANGE IN GENERAL