Production of plastics articles

Plastic and nonmetallic article shaping or treating: processes – Mechanical shaping or molding to form or reform shaped article – Shaping against forming surface

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Details

264292, 264297, 425384, 425DIG48, B29C 1702

Patent

active

041850696

ABSTRACT:
A process for production of a re-entrant article, such as a vehicle mud guard, comprising attaching a sheet of thermo-plastic material, by its opposite edges, to trolleys on a machine, the trolleys being movable towards one another, heating the sheet to soften it, raising a former under the sheet to cause it to take up the required re-entrant form, the trolleys moving inwardly as this occurs, and then cooling the sheet to cause it to set in the required configuration.

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patent: 3349153 (1967-10-01), Beck
patent: 3389202 (1968-06-01), Waling
patent: 3553784 (1971-01-01), Shuman
patent: 3726953 (1973-04-01), Jones et al.

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