Frederick N. Zimmermann

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Deerfield, IL, US

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Patents Grantslast 30 patents

Information Patent Grant
Magnetically-coupled pump
- Patent number 4,080,112
- Issue date Mar 21, 1978
- March Manufacturing Company
- Frederick Norman Zimmermann
- F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information Patent Grant
Pump impeller and coupling magnet structures
- Patent number 3,938,914
- Issue date Feb 17, 1976
- March Manufacturing Company
- Frederick N. Zimmermann
- F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information Patent Grant
Magnetically-coupled pump
- Patent number 3,932,068
- Issue date Jan 13, 1976
- March Manufacturing Company
- Frederick N. Zimmermann
- F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...