Method of forming polycarbonate sheeting

Details Method of forming polycarbonate sheeting Method of forming polycarbonate sheeting

1989-02-01

1991-01-22

Thurlow, Jeffery

Plastic and nonmetallic article shaping or treating: processes

Mechanical shaping or molding to form or reform shaped article

Shaping against forming surface

264285, 264295, 264296, 264292, 264322, 264339, 264DIG65, 264DIG66, 425384, 425391, B29C 5304, B29D 2500, B29K 6900

Patent

active

049869507

ABSTRACT:
The invention relates to a method for forming twin-wall polycarbonate sheets into desired arcuate forms to be used, for example, as awnings. The method is distinguished from known forming techniques which are generally not effective in forming the polycarbonate sheets hereinafter described.
The method generally includes preheating a portion of the polycarbonate sheet within a heating chamber, engaging the sheet with the mould which is pivotally mounted to the frame of an apparatus within the heating chamber, frictionally restraining the movement of the sheet with respect to the frame at a position spaced from the mould, and outside the heating chamber, and pivoting the mould so as to form the sheet.
The present invention generally overcomes the difficulties in forming twin-walled polycarbonate sheets thereby allowing this material to be used in place of other conventional awning materials such as fibreglass and corrugated iron.

REFERENCES:
patent: 2517701 (1950-08-01), Oettinger, Jr.
patent: 2647284 (1953-08-01), Richardson et al.
patent: 3020596 (1962-02-01), Clapp et al.
patent: 3041668 (1962-07-01), Bonza et al.
patent: 3426115 (1969-02-01), Taber
patent: 3499072 (1970-03-01), Helling et al.
patent: 3599959 (1971-08-01), Asenbauer
patent: 3632275 (1972-01-01), Misner
patent: 3894137 (1975-07-01), Moench
patent: 3988399 (1976-10-01), Evans
patent: 4352776 (1982-10-01), Weisner et al.

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