Reseal International Limited Partnership

Michael D Handler

A linear sheath valve having a valve platform and a conforming cover. The valve platform can have inlet and outlet channels to carry liquid into and out of the valve. An elastomeric membrane is held under tension between the cover and the valve platform so as to control the flow of liquid between channels. The cover includes an expansion area on the cover surface adjacent to the membrane and between the inlet and outlet. Liquid flows through the valve when it is drawn by a vacuum. The vacuum operates on both the flow path exit, but also above the membrane, lifting it to open the flow path. Discontinuance of the vacuum allows the membrane to seal the inlet and outlet, thus again preventing any flow between them.

Vacuum actuated sheath valve

A linear sheath valve having a valve platform and a conforming cover. The valve platform can have inlet and outlet channels to carry liquid into and out of the valve. An elastomeric membrane is held under tension between the cover and the valve platform so as to control the flow of liquid between channels. The cover includes an expansion area on the cover surface adjacent to the membrane and between the inlet and outlet. Liquid can flow through the valve only when it is under sufficient pressure to press the membrane into the expansion area, creating a flow path from the inlet between the membrane and the valve platform and to the outlet. Discontinuance of the pressure on the liquid allows the membrane to seal the inlet and outlet, thus preventing any flow between them.

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Brookfield, CT, United States of America

Michael D Handler