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US 6,141,874 AGranted
Window frame welding method
AssigneeAndersen Corporation
InventorCarl James Olsen
Life of this patent
Estimating the term…
Abstract
A frame member is extruded from a composite material including plastic and wood fiber. A plastic end cap is sonically welded to a cut end of the frame member despite the presence of wood fiber at the interface.
Claims10
A method of making a frame for a window or door, comprising the steps of:
- extruding a frame member from a composite material including wood fiber and plastic, the frame member having sidewalls disposed about a hollow interior;
- cutting the frame member to length, thereby creating a cut end;
- forming a cap to be secured across the cut end;
- providing a first surface on the cap to span the cut end;
- disposing at least one energy director on the first surface;
- providing a second surface on the cap, extending perpendicularly inward from the first surface, to interface with at least one of the sidewalls on the frame member;
- disposing at least one energy director on the second surface;
- and
- sonically welding the cap to the cut end.
6 more elements
A method of making a frame for a window or door, comprising the steps of:
- extruding a frame member from a material having a plastic component, the frame member having sidewalls disposed about a hollow interior;
- cutting the frame member to length, thereby creating a cut end;
- forming a cap with a first surface to interface with the cut end, at least one energy director on the first surface, a second surface to interface with at least one of the sidewalls on the frame member, wherein the second surface extends perpendicularly inward from the first surface, and at least one energy director on the second surface;
- and
- sonically welding the cap to the cut end.
2 more elements
Dependencies are inferred from the claim text.