Craig I. Walker

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Artarmon, AU

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Patents Grantslast 30 patents

Information Patent Grant
Impeller annular seal
- Patent number 5,411,367
- Issue date May 2, 1995
- Warman International Ltd.
- Craig I. Walker
- F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information Patent Grant
Annular elastomeric slurry seal
- Patent number 5,112,039
- Issue date May 12, 1992
- Warman International Limited
- Craig I. Walker
- F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information Patent Grant
Impellers for centrifugal pumps
- Patent number 4,883,403
- Issue date Nov 28, 1989
- Warman International Limited
- Craig I. Walker
- F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...