Marine Drain Valve
OwnerRudolph Eberstadt, III, Peter Otis Eberstadtinventors
Life of this patent
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Abstract
A valve for use with a vessel drain tube includes a body extending along a longitudinal axis. The body has an outer surface and an inner surface defining a bore extending longitudinally from a first end to a second end. The valve includes an external seal on the outer surface of the body for sealing with the drain tube, at least one internal seal on the inner surface extending into the bore, a retaining member extending at least partially into the bore and being spaced from the internal seal, and a sealing member displaceable between the internal seal and the retaining member. The sealing member is configured to seal with the internal seal in a valve closed, first configuration and to not seal with the internal seal in a valve open, second configuration.
Claims20
A marine drain valve for use with a marine drain tube that extends through a wall of a marine vessel, the valve comprising:
- an elongated body extending along a central axis, the body having an outer surface and an inner surface defining an inner bore extending longitudinally through the body from a first open end of the body to a second open end of the body, the body configured to be positioned at least partly in the drain tube, wherein the inner surface of the bore has at least a tapered portion having a tapered inner sealing surface that is tapered longitudinally from a first diameter to a second diameter that is smaller than the first diameter;
- at least one external seal extending from the outer surface of the body, the external seal configured to seal with the drain tube;
- a retaining member extending at least partially into the bore, the retaining member being spaced longitudinally from the second diameter;
- and
- a buoyant sealing member disposed and retained between the second diameter and the retaining member, the sealing member being longitudinally displaceable in the bore between the second diameter and the retaining member and configured to seal with the tapered sealing surface in a valve closed, first configuration when the buoyant sealing member is at the second diameter and is configured to not seal with the tapered sealing surface in a valve open, second configuration when the buoyant sealing member is spaced from the second diameter, wherein in the valve opened position, fluid is permitted to flow through the inner bore in a direction from the first open end to the second open end.
Dependencies are inferred from the claim text.