Collapsible binders and the like

Details Collapsible binders and the like Collapsible binders and the like

1980-05-28

1983-03-22

Schultz, William H.

Supports

Easel; book, copy or music score holder

Knockdown or collapsible

A47B 9704

Patent

active

043772714

ABSTRACT:
The invention relates to improvements in collapsible binders and the like, which are self-sustaining in a predetermined configuration when unfolded and extended to sit upon a flat surface, such a binder presenting an elongated central panel flanked by a pair of generally quadrilateral flanking side panels with a rearwardly located collapsible support having an upstanding elongated rear central panel flanked by a first pair of upstanding rear-side panels of substantially right-angled triangular configuration the later side panels terminating along their respective hypotenuses remote from said upstanding rear central panel in a second pair respectively of flanking side panels extending in coplanar relation behind the flanking side panels of said binder, and slidingly fixed thereto; and with all panels being so hingedly connected together that the structure may upon being unfolded extend into its self-sustaining predetermined configuration and may be compactly folded up when collapsed for storage or for carrying.

REFERENCES:
patent: Re21371 (1940-02-01), Barrett
patent: 2256513 (1941-09-01), Bauer
patent: 2587316 (1952-02-01), Henry
patent: 3383120 (1968-05-01), Guiles
patent: 3990669 (1976-11-01), Smith

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