Walter R. Chapman JR.

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Cleveland Heights, OH, US

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Patents Applicationslast 30 patents

Information Patent Application
Hemispherical Poppet Valve For Rotary Screw Compressor Intake Valves
- Publication number 20200248818
- Publication date Aug 6, 2020
- Walter R. Chapman
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Application
BACK PRESSURE VALVE HAVING A REDUCED PRESSURE DROP REQUIRED FOR FLU...
- Publication number 20190249791
- Publication date Aug 15, 2019
- Walter R. Chapman
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Application
MODULATING CHECK VALVE
- Publication number 20150107680
- Publication date Apr 23, 2015
- Walter R. Chapman
- F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...