Donald Prince

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McKenzie, TN, US

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Patents Grantslast 30 patents

Information Patent Grant
Pressure relief valve and secondary spring force containment assembly
- Patent number 9,249,891
- Issue date Feb 2, 2016
- McKenzie Valve and Machine LLC
- Donald Prince
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...

Patents Applicationslast 30 patents

Information Patent Application
Handle Mechanism to Prohibit Accidental Valve Operation
- Publication number 20150075645
- Publication date Mar 19, 2015
- MCKENZIE VALVE & MACHINING LLC
- Donald Prince
- B61 - RAILWAYS