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OwnerWilliam Paul Camp JR., William Craig +2inventors
InventorsWilliam Paul Camp JR., William Craig, Owen Michael Atchison, Howard Leander Montgomery
Estimating the term…
A water control gate assembled from hollow core boards of extruded rigid plastic material with soft plastic material gaskets chemically bonded thereto by molecular cross-linking. Side channel members that receive end portions of the boards are extruded of rigid plastic material with soft plastic gaskets chemically bonded thereto by molecular cross-linking. The gaskets seal against the outer surfaces of the board end portions. The gaskets are molecularly cross-linked with the board or side channel plastic material so that they will not separate therefrom. Cross-linking is achieved by way of coextrusion or by locally reheating surfaces of the board or channel member downstream from their extrusion die to a temperature that promotes molecular cross-linking with a gasket material as the gasket is extruded onto the reheated area.
A water control gate comprising:
A hollow board of plastic material, said board having a top end with a tongue therealong and a bottom end with a groove therealong for receiving a tongue on an adjacent board, said board having a pair of board ends on opposite sides of said groove, elastomeric gaskets attached to said board ends, said gaskets having gasket bottom ends and gasket inclined inner surfaces, said board having gasket engaging shoulders on opposite sides of said tongue and inclined tongue surfaces adjacent said gasket engaging shoulders, said gasket engaging shoulders and tongue inclined surfaces on an adjacent board being sealingly engaged with said gasket bottom ends and said gasket inclined inner surfaces when the tongue on an adjacent board is received in the groove.
A hollow channel member of plastic material, said channel member having a channel with a channel opening, a channel bottom and opposite channel sidewalls, elastomeric finger gaskets on said sidewalls, said finger gaskets including flexible fingers that are inclined toward at least one of said channel opening or said channel bottom.
A water gate control structure including a riser pipe having a longitudinal axis and an inner surface, a pair of opposite hollow channel members of plastic material secured against said inner surface, said channel members having channels therein that open outwardly toward one another for receiving board end portions to form a control gate within said riser pipe, said channels having channel open ends, channel bottoms and parallel spaced-apart channel sidewalls, gaskets attached to said channel sidewalls and extending into said channels, and said channel members being sealed against said riser pipe inner surface.
Dependencies are inferred from the claim text.