Loose leaf retainer for file folders

Details Loose leaf retainer for file folders Loose leaf retainer for file folders

1988-11-18

1990-06-12

Watts, Douglas D.

Binder device releasably engaging aperture or notch of sheet

Depository

Face member with back member

402 4, 402 19, 402 20, 402 21, 402 52, B42F 1300

Patent

active

049328042

ABSTRACT:
A pair of flexible retainer strips each of which can be held in ring configuration by a head and socket at opposite ends of the strip which interlock to retain a stack of perforated sheets in a file folder. Each retainer strip is slidably mounted in a separate guide channel formed in an anchor element securable to the cover of a file folder. The ends of the strip can be readily uncoupled to enable the insertion in or removal of a sheet at any location in the stack without having to remove any of the remaining sheets of the stack from the retainer strip.

REFERENCES:
patent: 546484 (1895-09-01), Brown
patent: 902189 (1908-10-01), Wheildon
patent: 1538249 (1925-05-01), Lorenz
patent: 2099881 (1937-11-01), Emmer
patent: 3501814 (1970-03-01), Anderson et al.
patent: 3516124 (1970-06-01), Merser
IBM Technical Disclosure Bulletin, vol. 14, No. 4, Sep. 1971, "Random Access Binder", Bindewald & Boiney.
Physical sample of a file fastener called the "Eldon Fastener".

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