Plastic and nonmetallic article shaping or treating: processes – With measuring – testing – or inspecting – Positioning of a mold part to form a cavity or controlling...
Patent
1993-10-29
1996-01-09
Lesmes, George F.
Plastic and nonmetallic article shaping or treating: processes
With measuring, testing, or inspecting
Positioning of a mold part to form a cavity or controlling...
264323, 264347, B29B 1700, B29C 7100
Patent
active
054826632
ABSTRACT:
Apparatus for molding an elongated cylindrical object includes an elongated cylindrical mold. First and second closure plates are positioned within the mold and an elongated tube is suspended between the closure plates within the mold. A sliding piston is mounted over the elongated tube. Molten plastic is introduced into the mold between the piston and one of the closure plates so as to cause the piston to slide along the tube within the mold toward the opposite closure plate. When the mold is filled, the piston engages the opposite closure plate, and further introduction of molten plastic is stopped. This process produces an elongated plastic body having the tube embedded therein.
REFERENCES:
patent: 4538657 (1985-09-01), Tuggle
patent: 4828474 (1989-05-01), Ballantyne
patent: 5051285 (1991-09-01), Borzakian
patent: 5082604 (1992-01-01), Valyi
Hammer Floyd V.
Harper Brian
Rude John A.
Hammer's Inc.
Lesmes George F.
Shelborne Kathryne E.
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