Door panel construction

Details Door panel construction Door panel construction

1983-09-09

1986-04-22

Friedman, Carl D.

Static structures (e.g., buildings)

Sectioned imperforate facing within perpheral frame; e.g.,...

Intersecting separators within frame

52455, 52785, 52806, 428116, E04C 236, E06B 374, B32B 312

Patent

active

045833389

ABSTRACT:
A hollow door panel construction includes a rectangular frame of predetermined thickness assembled from side and end members defining an elongated enclosure. Within the enclosure are corrugated paperboard strips, having a width equal to the predetermined thickness. The strips are variously formed and attached to define a plurality of horizontal cell rows, vertically stacked to fill the framed volume. Each cell row spans the internal width of the frame, and includes a centrally positioned short-walled brace cell straddled on either side by a long-walled lateral cell. To complete the panel construction, thin sheets abut and are secured to the opposite faces of the frame and to the outer edges of the strips.

REFERENCES:
patent: 2695430 (1954-11-01), Wakefield
patent: 2791809 (1957-05-01), Lincoln, Jr.
patent: 2828235 (1958-03-01), Holland et al.
patent: 3336714 (1967-08-01), Vecchiarelli et al.
patent: 3704563 (1972-12-01), Waller
patent: 4294055 (1981-10-01), Andresen

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