Method of making a window frame and a window panel with a window

Plastic and nonmetallic article shaping or treating: processes – Forming continuous or indefinite length work – Of varying cross-sectional area or with intermittent...

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156108, 26417716, 264252, 425381, 425465, 425466, B29C 4702

Patent

active

054894093

ABSTRACT:
A method of making by extrusion-molding an elongated window frame used for a window panel of a vehicle is to use an extrusion molding die which includes a slide core defining the cross-sectional shape of the window frame, and to move the slide core in the extrusion-molding die so that the cross-sectional shape of the window frame is continuously changed along the direction of the length.

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