Composite panel having interlocked skins and a bonded foam core

Details Composite panel having interlocked skins and a bonded foam core Composite panel having interlocked skins and a bonded foam core

1994-11-30

1996-07-09

Friedman, Carl D.

Static structures (e.g., buildings)

With synthetic resinous component

Foam

5239604, 525862, 525901, 528001, 528021, E04C 2292

Patent

active

055333125

ABSTRACT:
A unitary, insulated panel is provided for use in sectional doors and walls. The panel comprises opposed, spaced apart, parallel, inner and outer metal skins. The skins are mechanically interlocked along their top and bottom ends by integral, inwardly projecting flanges having mutually engaged, hook-shaped terminal portions. The opposed flanges at each end are coplanar. The engaged hook-shaped terminal portions combine to form a longitudinally extending slot. The mouth of the slot is narrow relative to its bulbous inner portion. A strip of weather seal can be inserted longitudinally into the slot, for sealing purposes. Foamed polyurethane is formed in situ in the space between the skins. The polyurethane bonds to the skins. A rigid, strong panel unit is obtained by the combination of mechanically interlocking the skins and bonding them with the core.

REFERENCES:
patent: 4123885 (1978-11-01), Scott
patent: 4183393 (1980-01-01), Bailey
patent: 4441301 (1984-04-01), Benson
patent: 4589240 (1986-05-01), Kendall et al.

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