E - Fixed Constructions – 06 – B
Patent
E - Fixed Constructions
06
B
26/184, 108/50
E06B 7/16 (2006.01) E06B 3/66 (2006.01) E06B 3/667 (2006.01) E06B 3/68 (2006.01) E06B 3/99 (2006.01)
Patent
CA 2034931
The invention relates to a hollow sash section (11) of metal, in particular aluminum, for insulation glazing, with a longitudinal welding seam (12a) invisibly disposed in a recess (8) in the section. The invention also relates to a method for the manufacture of the hollow sash section in which a paint-coated or anodized strip is preferably used, in par- ticular of aluminum, whose longitudinal edges are bent towards each other until they meet, forming a tube, whereupon the long- itudinal edges are welded together and the tube is further pro- filed into a hollow section of predetermined corss-section, and there being formed into the tube, immediately after the welding operation, a recess in the section in the area of the welding seam so that the welding seam is located at the bottom of the recess in the section, invisible from the outside. (Fig. 2)
Helmut Lingemann Gmbh & Co.
Johnson Douglas S. Q.c.
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