Horizontally supported planar surfaces – Folding
Patent
1988-08-18
1989-06-27
Dorner, Kenneth J.
Horizontally supported planar surfaces
Folding
108153, 4285428, 297442, A47B 300
Patent
active
048418820
ABSTRACT:
A foldable article of furniture which can be formed in its entirety from a single, unitary sheet of material without the use of supplemental securement members or fasteners such as staples or glue. The furniture article has three or more legs for stability and support. Additionally, each of the legs is interlocked with adjoining legs and is also integral with a top portion of the furniture along a common peripheral edge. The flat sheet or blank may be provided with stress relief openings and with prescored fold lines to facilitate assembly of the article.
REFERENCES:
patent: 695211 (1902-03-01), Keller
patent: 2141399 (1938-12-01), Luhn
patent: 2390546 (1945-12-01), Mather
patent: 2822860 (1958-02-01), Calabrese
patent: 3220362 (1965-11-01), Downes
patent: 3438345 (1969-04-01), Lasaine et al.
patent: 3592143 (1971-07-01), Krone
patent: 3892441 (1975-07-01), Roeshman
patent: 4304329 (1981-12-01), Graser
patent: 4546941 (1985-10-01), Hildebrand
Dorner Kenneth J.
Green Brian K.
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