Static structures (e.g. – buildings) – Composite prefabricated panel including adjunctive means – Sandwich or hollow with sheet-like facing members
Patent
1977-02-14
1981-10-13
Downey, Kenneth
Static structures (e.g., buildings)
Composite prefabricated panel including adjunctive means
Sandwich or hollow with sheet-like facing members
428116, 52793, 49197, 49501, E05C 232
Patent
active
042940559
ABSTRACT:
There is disclosed a panel construction which is useful for overhead doors where the door is supported at side bearing points and is supported, when open, in an overhead, horizontal position. The door is formed of a core having a honeycomb structure which is defined by a plurality of parallel strips of sheet material, each formed into a sinuous path and bonded to immediately adjacent strips at its outwardly bowed extremities, the assembly of strips of sheet material thereby providing a honeycomb or reticulated core structure. The core is aligned in the door with the strips of material extending across the width of the door. The door is provided with covering sheets which extend over the opposite sides of the honeycomb core. The covering sheets are bonded securely to the edges of the strips of sheet material of the honeycomb core by adhesive material which, preferably, has some resiliency. When necessary, the door structure can be braced by internal spine members which are formed with a honeycomb core sandwiched between covering material strips. The door can be formed with upper and lower horizontal and upright frame members at either end or, alternatively, can be open at its edges and the edges can be covered by channel members which can be secured to the door to provide mounting support for hardware fixtures.
REFERENCES:
patent: 2399666 (1946-05-01), Een
patent: 2710080 (1955-06-01), Negy
patent: 2827670 (1958-03-01), Schwindt
patent: 2893076 (1959-07-01), Herts
patent: 3151712 (1964-10-01), Jackson
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