Static structures (e.g. – buildings) – With synthetic resinous component – With nonresinous component
Patent
1978-01-13
1979-01-02
Bell, J. Karl
Static structures (e.g., buildings)
With synthetic resinous component
With nonresinous component
49501, 52800, 428116, 52809, E04B 228, E04C 232
Patent
active
041320425
ABSTRACT:
An improved door structure and the method for forming such structure is disclosed. Individual rectangular door panels are formed from glass fiber reinforced plastic with a lip along at least one exterior edge for abutting a surface against which the door panel seals when the door is closed. A seal is attached to the door panel adjacent the lip for resiliently engaging the abutting surface. Internal wood and prestressed steel reinforcement strips extend along at least the long sides of the door panels to prevent the door panels from twisting or sagging. The interior of the door panel is reinforced with a honeycomb formed from a resin impregnated corrugated cardboard. Voids in the honeycomb may be filled with solid or particulate insulation.
REFERENCES:
patent: 2849758 (1958-09-01), Plumley et al.
patent: 3227601 (1966-01-01), Crosby
patent: 3299595 (1967-01-01), Munk
patent: 3423878 (1969-01-01), Kimmel
patent: 3512304 (1970-05-01), Meuret
patent: 3703422 (1972-11-01), Yashino
patent: 3753843 (1973-08-01), Hutchison
patent: 3837989 (1974-09-01), McCoy
patent: 3895152 (1975-07-01), Carlson et al.
patent: 4064655 (1977-12-01), Weyant
Bell J. Karl
Todd, Jr. Oliver E.
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