E.i. Dupont De Nemours and Company

Other

Donald C Aldrich

John F Sollinger

Robert C Buchanan

Preforms and composite articles from carbon fiber reinforced matrix resins braided to shape on a mandrel and then converting to a final composite article by fully or partially curing in a mold followed by post curing if required.

Fiber reinforced resin preform

Process for preparing preforms and composite articles from carbon fiber reinforced matrix resins braided to shape on a mandrel and then converting to final composite article by fully or partially curing in a mold followed by post curing if required.

Process for preparing a fiber reinforced resin matrix preform

A water shutoff valve is disclosed in the preferred embodiment comprising a cylindrical body having a valve disk and water flow sensor therein. The sensor is operatively connected to a timer which automatically resets to zero upon interruption of water flow through the valve. The valve automatically closes upon continuous flow of water through the valve for a predetermined period of time, indicating a potential leak in the water supply line. The timer may be set for selected time intervals permitting the valve to remain open for short or long intervals as required.

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Kennett Square, PA, United States of America

Donald C Aldrich