Adhesive bonding and miscellaneous chemical manufacture – Surface bonding means and/or assembly means therefor – With separate heating means for work
Patent
1997-10-21
1999-08-17
Engel, James
Adhesive bonding and miscellaneous chemical manufacture
Surface bonding means and/or assembly means therefor
With separate heating means for work
1563041, 1563046, 1563099, 156322, B32B 3100
Patent
active
059388889
ABSTRACT:
A method of welding mitered surfaces of frame sections made of plastic material and having incorporated therein a seal of weldable material extending along the frame sections and composed of an attachment foot and at least a sealing lip, for use in windows or doors, includes the steps of heat-welding mitered surfaces and adjoining frame section zones by means of a heated mirror while covering during welding operation an inner contour of the seal by at least one form-part that is positioned in and neighboring the miter plane and has a contour which substantially complements the inner contour of the seal. Subsequently, after removing the heated mirror from the miter corner and withdrawing the form-part the area of the seal, the mitered surfaces of the frame section are squeezed together.
REFERENCES:
patent: 4183778 (1980-01-01), Mesnel
patent: 4601927 (1986-07-01), Durfee
patent: 4752350 (1988-06-01), Schuster
patent: 5240537 (1993-08-01), Bodicky
patent: 5370835 (1994-12-01), Sturtz
patent: 5614052 (1997-03-01), Fisher
Engel James
Feiereisen Henry M.
Schuco International KG
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