Horizontally supported planar surfaces – Convertible – Support becomes inoperative
Patent
1989-05-10
1990-02-27
Aschenbrenner, Peter A.
Horizontally supported planar surfaces
Convertible
Support becomes inoperative
108 12, A47B 300
Patent
active
049036149
ABSTRACT:
A multi-functional table of adjustable height has concealed supplementary legs capable of being swung downwardly to effectively extend the lengths of the four main legs of the table. The supplementary legs are concealed within housings that extend between the lower extremities of adjacent main legs. A release mechanism, operable from above the housings, controls the release of the supplementary legs. The deployed supplementary legs are secured by an upward sliding motion.
REFERENCES:
patent: 36781 (1862-10-01), Hunter
patent: 732585 (1903-06-01), Reinhardt
patent: 1039868 (1912-10-01), Whitney
patent: 2398693 (1946-04-01), Bureau
patent: 2678858 (1954-05-01), Davis
patent: 4237795 (1980-12-01), Parker
patent: 4462636 (1984-07-01), Markson
Aschenbrenner Peter A.
Rainer Norman B.
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