Plastic and nonmetallic article shaping or treating: processes – With severing – removing material from preform mechanically,... – Forming continuous work followed by cutting
Patent
1991-12-12
1993-07-13
Woo, Jay H.
Plastic and nonmetallic article shaping or treating: processes
With severing, removing material from preform mechanically,...
Forming continuous work followed by cutting
156211, 264145, 264162, 264266, 264296, 428 31, B29C 4516
Patent
active
052271080
ABSTRACT:
A method of forming an elongated decorative trim strip of thermoplastic material with an end of the strip having a desired shape of non-constant cross-section in planes perpendicular to the longitudinal axis of the strip. An extruded length of thermoplastic material is first made of a length substantially equal to the desired length of the decorative trim strip with a first longitudinally extending surface of the length being a front show face and a second longitudinally extending surface opposite the first surface being a back mounting surface. At an end portion of the extruded length, material is removed inwardly from the second surface to create a cavity behind the first surface while leaving the show face generally undisturbed. Thereafter, the end portion of the extruded length with the cavity formed therein is enclosed in a mold chamber with an interior surface having the desired end shape and thermoplastic material is injected into the formed cavity to fill the cavity and force the show face of the enclosed end portion into engagement with the interior surface of the mold.
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Reid, Jr. James
Townsend James
Davis Robert B.
The Standard Products Company
Woo Jay H.
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