Jeffrey U. Shaffer

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Minneapolis, MN, US

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Patents Grantslast 30 patents

Information Patent Grant
Pump changeover algorithm for spray system
- Patent number 11,148,152
- Issue date Oct 19, 2021
- Graco Minnesota Inc.
- David L. Fehr
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Grant
Pump changeover algorithm for spray system
- Patent number 10,195,621
- Issue date Feb 5, 2019
- Graco Minnesota Inc.
- David L. Fehr
- F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...

Patents Applicationslast 30 patents

Information Patent Application
PUMP CHANGEOVER ALGORITHM FOR SPRAY SYSTEM
- Publication number 20190118201
- Publication date Apr 25, 2019
- Graco Minnesota Inc.
- David L. Fehr
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Application
SPRAY SYSTEM PRESSURE AND RATIO CONTROL
- Publication number 20160167066
- Publication date Jun 16, 2016
- Graco Minnesota Inc.
- David L. Fehr
- B05 - SPRAYING OR ATOMISING IN GENERAL APPLYING LIQUIDS OR OTHER FLUENT MATER...
Information Patent Application
PUMP CHANGEOVER ALGORITHM FOR SPRAY SYSTEM
- Publication number 20160158784
- Publication date Jun 9, 2016
- Graco Minnesota Inc.
- David L. Fehr
- B05 - SPRAYING OR ATOMISING IN GENERAL APPLYING LIQUIDS OR OTHER FLUENT MATER...