Device for the permanent binding of sheaves of paper and method

Details Device for the permanent binding of sheaves of paper and method Device for the permanent binding of sheaves of paper and method

1995-12-11

1997-08-05

Fridie, Jr., Willmon

Binder device releasably engaging aperture or notch of sheet

Sheet retainer with releasable keeper

Keeper including wedge type securing means

402 60, B42F 300

Patent

active

056535449

ABSTRACT:
A device for the permanent binding of sheaves of paper and method for using it to fasten sheaves of paper are disclosed. The device includes a rod made from synthetic material whose diameter is smaller than that of the perforations in the sheaf of paper to be joined, ending at one end in a checker stop for limiting insertion and in the other end in an entry zone of diminishing section. The rod is fitted with a metallic, cylindrical and hollow sleeve, whose outside diameter is slightly less than that of the perforations of the sheets to be joined. At one end, the sleeve has a checker stop for limiting insertion into the sheaf of paper and, at the other end and on the inside of the opening an annular engaging surface having a diameter which is slightly smaller than that of the rod. When sleeve is moved over the rod, the engaging surface engages the rod to retain the rod.

REFERENCES:
patent: 1675277 (1928-06-01), Roe
patent: 2891554 (1959-06-01), Foster
patent: 3083714 (1963-04-01), Foster
patent: 3251260 (1966-05-01), Serdechny
patent: 3757389 (1973-09-01), Wiland

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