Paper perforating device

Details Paper perforating device Paper perforating device

1993-05-06

1994-03-08

Phan, Hien H.

Cutting

Means to drive or to guide tool

With simple oscillating motion only

16386, 30356, 402 1, 402 4, B26F 132

Patent

active

052918130

ABSTRACT:
A sheet perforating punch formed of hard polymeric material formed of a punch plate with punching teeth and a die plate with holes intended to be registered with the teeth, snap-together hinging being provided for rotatably coupling the two plates together along respective edges thereof so that the registration of corresponding ones of the holes and teeth are fixed and so that no discernible relative axial displacement or travel of the two plates is permitted.

REFERENCES:
patent: 1142032 (1915-06-01), Faifer
patent: 1567643 (1925-12-01), Hearne
patent: 2139159 (1938-12-01), Hammen
patent: 2370319 (1945-02-01), Lippincott
patent: 2495687 (1950-01-01), Belmon
patent: 3000049 (1961-09-01), Terry, Jr.
patent: 3372482 (1968-03-01), Mercorelli
patent: 3975105 (1976-08-01), Cline

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