USA As Represented by Secretary of the Navy

Andrew J Field

Thomas D Gracik

William H Lewis

Dana C Lynn

Frederick Oberman

William D Kuran

Controlled flow of liquid is conducted between aligned inlet and outlet pipe sections through a valve housing within which a solid valve element is sealed and supported for electrically powered displacement between a fully open position establishing unrestricted flow and a fully closed position blocking inflow from the inlet pipe section and outflow from the outlet pipe section. The valve element is operatively displaced either by rotation or by linear movement under electrically powered control through a valve stem connected thereto, while a manual actuator is also connected to the valve stem outside of the valve housing for imparting reduced dithering displacement to the valve element so as to insure that it is in proper and readied working condition. Such electrically powered operational displacement of the valve element is sensed in response to movement of the valve stem.

Electrically powered valve for controlling, monitoring and evaluating fluid flow

A platform assembly of circular plates are yieldably held positioned by a support mounted on an underwater vehicle propelled under remote control within seawater to a location below an underwater surface such as the bottom of a ship hull, for surface measurement survey of such surface through sensors that are projected upwardly from the positioned platform assembly into contact with the surface under spring bias pressure established during survey measurement.

Growing community of inventors

Rockville, MD, United States of America

Andrew J Field