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U.S. Department of Energy
Office of Scientific and Technical Information

Thermally insulated windows and doors

Patent ·
OSTI ID:5680356
Complete thermal insulation of metal rails and stiles in vertically or horizontally sliding or rolling windows or doors is provided by including in the frame thereof centered rigid plastic shapes which extend between panels of the windows or doors. All rails and stiles of each panel are thereby exposed only to either interior or exterior ambient temperatures.
Assignee:
Capitol Products Corp.
Patent Number(s):
US 4151682
OSTI ID:
5680356
Country of Publication:
United States
Language:
English