Receptacles – Sectional – Folding
Patent
1992-10-28
1993-10-12
Elkins, Gary E.
Receptacles
Sectional
Folding
220 7, 206504, 206511, B65D 618, B65D 626
Patent
active
052517721
ABSTRACT:
In accordance with this invention, in order that a document filing case can be piled on another document filing case in a folded state before use and can be constituted as a box with ease in use, a document filing case comprises: an upper wall member having one end portion pivotally connected to the front frame member, and the other end portion guided into longitudinal grooves formed in the rear frame member; a bottom wall member having one end portion pivotally connected to the rear frame member so as to oppose the upper wall member and the other end portion guided into longitudinal grooves formed in the front frame member; left and right side walls pivotally connected to either the upper wall member or the bottom wall member so that these side walls can rotate in a vertical direction from a folded state when the bottom wall member and the upper wall member rotate so that they are opposite to each other in a horizontal state; a rear wall attached on the rear frame member; and a front wall pivotally connected to the front frame member so that it can be opened and closed.
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patent: 5036979 (1991-08-01), Selz
Castellano S.
Elkins Gary E.
Greigg Edwin E.
Greigg Ronald E.
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