Donald F. Grieve

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La Honda, CA, US

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Patents Grantslast 30 patents

Information Patent Grant
Rotating hydrocyclone separator with turbulence shield
- Patent number 5,180,493
- Issue date Jan 19, 1993
- Krebs Engineers
- Donald F. Grieve
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Grant
Hydricyclone separator with turbulence shield
- Patent number 5,133,861
- Issue date Jul 28, 1992
- Krebs Engineers
- Donald F. Grieve
- B04 - CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL...
Information Patent Grant
Cyclone monitoring apparatus and method
- Patent number 4,246,576
- Issue date Jan 20, 1981
- Krebs Engineers
- Donald F. Grieve
- B04 - CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL...
Information Patent Grant
Hydrocyclone assembly
- Patent number 4,208,270
- Issue date Jun 17, 1980
- Krebs Engineers
- Donald F. Grieve
- B04 - CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL...
Information Patent Grant
Method of removing fly ash particulates from flue gases in a closed...
- Patent number 4,000,991
- Issue date Jan 4, 1977
- Krebs Engineers
- Deering D. Melin
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL