Apparatus for the simultaneous welding of at least four plastic

Details Apparatus for the simultaneous welding of at least four plastic Apparatus for the simultaneous welding of at least four plastic

1998-06-18

2000-05-02

Sells, James

Adhesive bonding and miscellaneous chemical manufacture

Surface bonding means and/or assembly means therefor

With separate heating means for work

1563042, 1563046, 156507, 156557, 156580, B29C 6520

Patent

active

060560339

ABSTRACT:
The invention relates to an apparatus for the simultaneous welding of at least four plastic profile sections cut for mitre joint for window or door leaves or frames with four welding heads which are arranged moveable relative towards one another, with stops being provided in the zone of each welding head in order to outwardly support the ends of the profile sections and with spacer elements being provided which support the surfaces of the profile sections cut for mitre joint. A precise arrangement of the corners is achieved in such a way that the spacer elements are outfitted with springs.

REFERENCES:
patent: 4963219 (1990-10-01), Nichols et al.
patent: 4971639 (1990-11-01), Quinn et al.
patent: 4995935 (1991-02-01), Ganzberger
patent: 5439546 (1995-08-01), Brichenstein
patent: 5736000 (1998-04-01), Sturtz
patent: 5855720 (1999-01-01), Johnson et al.
patent: 5902447 (1999-05-01), Johnson et al.
patent: 5902657 (1999-05-01), Hanson et al.

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