Self-locking triad support

Details Self-locking triad support Self-locking triad support

1986-10-06

1988-09-13

Britts, Ramon S.

Supports

Brackets

Adjustable

248461, 248298, A47G 2902

Patent

active

047703857

ABSTRACT:
An art board support comprising a solid leg plate pivotally attached on one end to the internal rim of a base plate aperture, and on the opposite end, pivotally attached to a U-shaped leg plate, in cross-section. The opposite end of the U-shaped leg plate is secured to the base plate by lateral sliding members. The two legs combined with the base plate form a triad, when in the open position, whereby downward pressure maintains the legs in a locked position. In the closed position, the leg assembly is secured by a latch assembly being recessed in the base plate aperture.

REFERENCES:
patent: 1318257 (1919-10-01), Blaustein
patent: 1957039 (1934-05-01), Beunger et al.
patent: 1990103 (1935-02-01), van Alstyne
patent: 2355653 (1944-08-01), Joyce
patent: 2881008 (1959-04-01), Goldman
patent: 3164353 (1965-01-01), Rene
patent: 3455461 (1969-07-01), Kesling

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