The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 14, 1989
Filed:
Aug. 15, 1988
Alfred F Brault, South Berwick, ME (US);
John D Gray, New Durham, NH (US);
Davidson Textron Inc., Dover, NH (US);
Abstract
A method for manufacturing decorative features in situ in a base layer cast plastic material includes the steps of providing a mold tool having a surface thereon which is recessed in the form of a desired decorative feature and includes a sharp break line between the recess and the surrounding mold surface; depositing a covering of thermoplastic material in the recess surface and heating the tool to melt the thermoplastic material on the recess surface to form segments of plastic corresponding to the desired decorative feature; thereafter cooling the covering and stripping it from the mold by separating it at the sharp break line interface between the deposited material on the recessed surface and a thin film membrane formed on the remainder of the mold surface so as to retain segments of material deposited in the recesses of the mold tool; reheating the mold tool recess to partially remelt the retained segments and thereafter depositing a base layer of thermoplastic material across the surface of the mold and reheating the mold to bond the retained segments to the base layer and cooling and stripping the mold to form a finished plastic shell having a decorative feature formed in situ therein.