Spacer for an insulating glass unit
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United States of America Patent
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Jun 30, 1992
Grant Date -
N/A
app pub date -
Apr 24, 1991
filing date -
Mar 20, 1991
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A spacer to bridge the interspace between two parallel panes of glass in a multilayer insulating glass. The spacer includes two hollow metal sections mutually spaced apart. A solid web of an unfoamed and fully-cured polyurethane casting compound fills the space between the hollow sections and adheres to the facing surfaces of the sections. The hollow sections and solid web form a spacer having relatively high torsional rigidity and electrical insulation, and having relatively low thermal conductivity between the glass panes. The outside surface of the web is covered with a layer impermeable to vapor.
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