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US 6,490,839 B1Granted
Window frame and method of producing it
AssigneeLapeyre
InventorsPhilippe Macquart, Remi Carel
Life of this patent
Estimating the term…
Abstract
A window frame is formed of a plurality of plastic section pieces welded together at their ends. The ends of the plastic section pieces also have surfaces which abut one another. The plastic section pieces are not welded at the abutting surfaces. The unwelded abutting surfaces can therefore be used to define the length of the window frame.
Claims9
A window frame comprising:
- a plurality of plastic section pieces, each of said plastic section pieces comprising a main section piece and at least one glazing bead,
- wherein said plurality of plastic section pieces are welded together at said main section pieces, and are not welded together at abutting surfaces of said glazing beads, and
- wherein when said main section pieces are in an unwelded state, said glazing beads are offset to be shorter than said main section pieces, and when said main section pieces are in a welded state, said glazing beads abut one another to determine the dimensions of the window frame.
Dependencies are inferred from the claim text.