Closed portable card file

Supports: cabinet structure – With card or sheet retainers – And a card selector

Patent

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Details

312183, 312244, 206425, A47B 6300

Patent

active

049060570

ABSTRACT:
A closed portable card file comprises a base, cover, retractable carrying handle and a releasable latch to hold the cover closed. The back of the cover is square and extends down behind the back of the base and is hinged near the bottom of the base so that when the card file is in closed condition the back of the cover is approximately perpendicular to the base and when the card file is open, the back of the cover lies approximately in the plane of the base. Hence the card file can stand upright on the back of the cover when closed. When the card file is open and rests on a horizontal surface, the cover stands upright and is retained in open position by its weight. The base has rails for receiving notched cards and guides, and ribs which are parallel to the rails and are of a height to engage lower edges of the cards and guides and thereby reduce wear on the notches which receive the rails.

REFERENCES:
patent: Re28927 (1976-08-01), Karper
patent: Re30624 (1981-05-01), Soulakis et al.
patent: 298450 (1884-05-01), Colton
patent: 1478762 (1923-12-01), Russell
patent: 1595761 (1926-08-01), Doughty
patent: 2809766 (1957-10-01), Anderson
patent: 2897034 (1959-07-01), Kalen
patent: 2977113 (1961-03-01), Malin et al.
patent: 3602563 (1971-08-01), Karper
patent: 3604773 (1971-09-01), Haynes
patent: 3869045 (1975-03-01), Lear
patent: 4023839 (1977-05-01), Bisbing
patent: 4249760 (1981-02-01), Conley
patent: 4344646 (1982-08-01), Michel
patent: 4515419 (1985-05-01), Hampel et al.

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