Patent ID: 7673426
Filing Date: 2010-03-09
Classification: B29C,E04B,E06B

Abstract:
1. A method of forming a window frame assembly for a building, the method including the steps: forming an opening in a wall portion for receiving a window assembly, the opening including two opposing corners located at opposite sides of the opening; providing a one-piece rigid vinyl film member that includes a base portion, first and second side flanges, and a front flange with said side flanges extending from opposing side edges of said base, said side flanges including a front surface, and wherein said first and second side flanges are substantially perpendicular to the base portion wherein the base portion, the first and second side flanges, and the front flange are vacuum formed from one common sheet of rigid vinyl film having a thickness of about 20 mils or less; cutting in the field and at any point along the one piece member to form at least two corner pieces adapted for placement at the two opposing corners formed by the opening, wherein said two corner pieces include a rear wall projecting upwardly from a rear edge of said base; attaching the two corner pieces to the two opposing corners, wherein upon attachment a gap is formed between the two corner pieces; and covering the gap between the two corner pieces.