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US 6,554,939 B1Granted
Container and method of forming the container
AssigneePentair Pool Products, Inc.
InventorJames C. Murphy
Life of this patent
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AssigneePentair Pool Products, Inc.
InventorJames C. Murphy
Estimating the term…
An improved container is formed by attaching plates to outer side surface areas on opposite end portions of a liner with adhesive. The liner is supported for rotation about an axis which extends through the end portions of the liner and through the plates. The liner is rotated under the influence of torque transmitted to the liner through at least one of the plates and the adhesive attaching the one plate to the liner. Flexible material, which may be strands of continuous glass fibers impregnated with a thermosetting resin, is wound around the liner. As the flexible material is wound around the liner, the flexible material is wound over the plates at the opposite end portions of the liner. The surface areas, to which the plates are attached at opposite ends of the liner, are free of openings to the interior of the liner.
A method of forming a container for holding fluid, said method comprising the steps of providing a liner having first and second end portions, attaching a first plate to a first outer side surface of said first end portion via a first adhesive layer, attaching a second plate to a second outer side surface of said second end portion via a second adhesive layer, supporting the liner for rotation about a rotational axis which extends through the first and second end portions of the liner and through the first and second plates respectively attached thereto, supplying torque to at least said first plate attached to said first end portion of said liner, said torque being transmitted to said liner and being effective to rotate the liner about said rotational axis, and winding flexible material around the liner such that said flexible material is wound over at least a portion of each of said first and second end portions of the liner while the liner is being rotated under the influence said torque.
A method of forming a container for holding fluid, said method comprising the steps of providing a liner having first and second end portions, attaching a first plate to a first outer side surface of the first end portion of the liner, said first end portion being free of through openings, attaching a second plate to a second outer side surface of the second end portion of the liner, said second end portion being free of through openings, supporting the liner for rotation about a rotational axis which extends through the first and second end portions of the liner and through the first and second plates, rotating the liner about the rotational axis under the influence of torque transmitted to the liner through at least the first plate, and winding flexible material around the liner, said step of winding flexible material around the liner includes winding the flexible material over the first and second plates and over the first and second end portions of the liner while the liner is being rotated.
Dependencies are inferred from the claim text.