Door panel and manner of making
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Dec 9, 1980
Grant Date -
N/A
app pub date -
May 16, 1979
filing date -
May 16, 1979
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A door panel A,B having inner and outer skins 10 and 11, 110 and 111 and a rigid expanded core 15,115, filling the cavity between the skins with stiles 19,119 extending across the ends of the cavity, said panel being made by the method comprising continuously supplying two strips of sheet material 10c,110c and 11a,162b, spraying the undersurface of strip 11a,162b with expansible thermal insulating foam 34,134, bringing the strips together and moving them under heat and pressure in pressure conveyor F to expand the foam and fill the cavity between the strips, progressively forming marginal sealing portions 11b,160 of strip 11a,162b into sealing relation with the contoured edges 12,112 and 14,114 of the other strip at stations G and H, and shearing the moving composite strip into lengths at station I.
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Cited Art Landscape
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