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US 5,510,071 AGranted
Method and apparatus for production of tubing
AssigneeThe Big O, LLC
InventorsLenard Van Wonderen, Joseph F. Bengough, Carl D. Chapman, Frederick A. Kime
Life of this patent
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AssigneeThe Big O, LLC
InventorsLenard Van Wonderen, Joseph F. Bengough, Carl D. Chapman, Frederick A. Kime
Estimating the term…
A method and apparatus for production of smooth or corrugated small and large diameter thermoplastic tubing and composite tubular structures. The apparatus includes a supporting framework, a plurality of mold carriages mounted on said framework for reciprocal linear travel therealong, at least one mold block mounted on each of said mold carriages, each said mold block comprising a pair of opposed semi-cylindrical segments mounted on a carriage for transverse linear reciprocal travel therealong for closing and opening of said mold block, an actuating mechanism for moving said opposed mold segments towards and away from each other, and a single actuating mechanism for selectively moving said carriages.
An apparatus for the production of thermoplastic pipe or tubing comprising, in combination, a supporting framework, a plurality of mold carriages mounted on said flamework for reciprocal linear travel along a linear path, at least one mold block mounted on each of said mold carriages, each of said mold blocks comprising a set of opposed mold segments mounted on a carriage for transverse linear reciprocal travel therealong for closing and opening of said mold block, actuating means mounted on the carriage for moving said opposed mold segments towards and away from each other on the carriage and single actuating means for selectively moving said carriages with closed mold blocks along the linear path to an extrusion station and for selectively returning said carriages with open mold blocks along said linear path rearwardly past closed mold blocks.
A method for the production of thermoplastic pipe or tubing comprising, in combination, providing in a supporting framework a plurality of mold carriages mounted on said framework for reciprocal linear travel by single actuating means along a linear path, mounting at least one mold block having a pair of opposed mold segments on each of said mold carriages with actuating means mounted on the carriage for transverse linear reciprocal travel therealong for closing and opening of said mold block moving opposed mold segments towards and away from each other, and selectively moving said carriages with closed mold blocks along the linear path to an extrusion station and selectively returning said carriages with open mold blocks along said linear path rearwardly past closed mold blocks with said single actuating means.
Dependencies are inferred from the claim text.