Color-coated spacer tube for insulating glazings, and method and apparatus for its production
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United States of America Patent
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Jul 26, 1994
Grant Date -
N/A
app pub date -
May 23, 1990
filing date -
May 4, 1990
priority date (Note) -
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Abstract
The invention relates to a spacer tube of metal, in particular of aluminum, for frame or strut bars of an insulating glazing as spacer or respectively drying agent container between two continuous glass panes, a color stripe being imprinted on the inner wall of the spacer tube visible in the insulating glazing and preferably subsequently gas exchange openings are provided in the inner wall. Further the invention relates to a method for the production of a spacer tube, several color strips being imprinted in side-by-side arrangement on the surface of a metal strip, preferably simultaneously, using a rotary printing mechanism, the paint is dried, and the metal strip is divided longitudinally between the color stripes, and the resulting metal slats are shaped to form spacer tubes and are cut to length.
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