Donald L. Van Zeeland

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Franklin, WI, US

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Patents Grantslast 30 patents

Information Patent Grant
Thickness sensor
- Patent number 4,937,460
- Issue date Jun 26, 1990
- Eaton Corporation
- Eugene F. Duncan
- B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
Information Patent Grant
Gauge for detecting misalignment
- Patent number 4,904,941
- Issue date Feb 27, 1990
- Eaton Corporation
- Eugene F. Duncan
- G01 - MEASURING TESTING
Information Patent Grant
Displacement gauge that combines vector signals
- Patent number 4,891,589
- Issue date Jan 2, 1990
- Eaton Corporation
- Donald L. Van Zeeland
- G01 - MEASURING TESTING
Information Patent Grant
Through-beam optical detector system with alignment aid
- Patent number 4,626,683
- Issue date Dec 2, 1986
- Eaton Corporation
- Donald L. Van Zeeland
- G01 - MEASURING TESTING
Information Patent Grant
Proximity switch exhibiting improved start-up characteristics
- Patent number 4,543,527
- Issue date Sep 24, 1985
- Eaton Corporation
- Russell P. Schuchmann
- G01 - MEASURING TESTING
Information Patent Grant
Digital processing system for time-of-day and demand meter display
- Patent number 4,301,508
- Issue date Nov 17, 1981
- Eaton Corp.
- John A. Anderson
- G01 - MEASURING TESTING
Information Patent Grant
Dormant oscillator ground to neutral protection for ground fault in...
- Patent number RE30678
- Issue date Jul 14, 1981
- Eaton Corp.
- Donald L. Van Zeeland
- 361 - Electricity: electrical systems and devices