Adhesive bonding and miscellaneous chemical manufacture – Methods – Surface bonding and/or assembly therefor
Patent
1999-01-20
2000-10-10
Crispino, Richard
Adhesive bonding and miscellaneous chemical manufacture
Methods
Surface bonding and/or assembly therefor
1563043, 1563046, 1563082, 1563099, 156322, B29C 6502, C09J 502, B32B 3120
Patent
active
061298050
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
Crispino Richard
Feiereisen Henry M.
Purvis Sue A.
Schuco International KG
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