David G. Hulbert

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Johannesburg, ZA

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Patents Grantslast 30 patents

Information Patent Grant
Process for controlling a series of flotation cells
- Patent number 5,575,303
- Issue date Nov 19, 1996
- Mintek
- David G. Hulbert
- G05 - CONTROLLING REGULATING
Information Patent Grant
Method and apparatus for measuring shade of hydrocyclone underflow
- Patent number 5,248,442
- Issue date Sep 28, 1993
- Mintek
- David G. Hulbert
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Grant
Hydro-cyclone underflow monitor based on underflow slurry stream shape
- Patent number 5,132,024
- Issue date Jul 21, 1992
- Mintek
- David G. Hulbert
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL