David W. Haselden JR.

Follow

Person

Canon, GA, US

People

Patents Grantslast 30 patents

Information Patent Grant
Two spool energy saver valve
- Patent number 9,395,020
- Issue date Jul 19, 2016
- Ross Operating Valve Company
- José Carlos Bento
- F15 - FLUID-PRESSURE ACTUATORS HYDRAULICS OR PNEUMATICS IN GENERAL
Information Patent Grant
Double valve with anti-tiedown capability
- Patent number 6,318,396
- Issue date Nov 20, 2001
- Ross Operating Valve Company
- David W. Haselden
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Grant
Double valve with anti-tiedown capability
- Patent number 6,155,293
- Issue date Dec 5, 2000
- Ross Operating Valve Company
- David W. Haselden
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...

Patents Applicationslast 30 patents

Information Patent Application
TWO SPOOL ENERGY SAVER VALVE
- Publication number 20130087729
- Publication date Apr 11, 2013
- ROSS OPERATING VALVE COMPANY
- José Carlos Bento
- F15 - FLUID-PRESSURE ACTUATORS HYDRAULICS OR PNEUMATICS IN GENERAL