Patent ID: 11905756
Assignee: NATIONAL DOOR INDUSTRIES, INC.
Field: Other special machines (Mechanical engineering)
Classification: CPC E  B | IPC B  E

Claim 0:
1. A method of manufacturing wind and debris resistant window frame assembly for an overhead garage door, the method comprising the steps of:
providing a starting stock of plastic material;
extruding a plurality of strips of the plastic material to a desired length;
cutting the ends of the extruded plastic strips at a 45 degree angle using a saw;
joining selected corners of the plastic strips at 45 degree angles using a hot plate welder to create a pair of frame halves;
drilling assembly holes in the frame halves;
caulking the frame halves;
installing glazing between the frame halves;
installing screws in the assembly holes and assembling the frame halves to form an assembled frame;
wherein the frame halves comprise an exterior frame member and an interior frame member and wherein different starting stocks are used for the exterior and interior frame members, the interior frame member being a high impact strength and high tensile strength Nylon-6 polymer which is extrudable and the exterior frame member being a weatherable, high impact strength and high tensile strength paintable ASA polycarbonate polymer blend and;
wherein the window frame assembly manufactured from the particular choice of polymeric plastic materials is characterized as having a high impact strength and high tensile strength which can withstand or exceed an 8.000 psi impact from flying debris in testing.