Paper punch

Cutlery – Perforating or indenting implements

Patent

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Details

30278, 83385, B26F 102

Patent

active

060001399

ABSTRACT:
A paper punch comprising a body having upper and lower parts and providing a horizontal gap between the body parts, a rotatable male die having a cross-section of a specific shape and supported within the upper body part for vertical movement, and a spring provided inside the upper body part for biassing the male die upwards. The paper punch includes a rotatable female die having a hole of substantially the same shape and size and provided within the lower body part, and a guiding member provided within the upper body part for guiding the male die in vertical alignment with the female die. A rotatable press-knob is provided on the upper body part for moving the male die downwards, against the action of the spring, to perform one of the two following actions. The first action is cooperating with the female die for making a hole on a sheet of paper inserted into the gap. The second action is engaging with the female die for simultaneous rotation by the press-knob to change the orientation of the hole to be made.

REFERENCES:
patent: 236956 (1881-01-01), Nuebling
patent: 1138860 (1915-05-01), Gladwin
patent: 1467637 (1923-09-01), Hatch
patent: 3079824 (1963-03-01), Schott
patent: 3715947 (1973-02-01), Weisbeck et al.
patent: 3741056 (1973-06-01), Saladin
patent: 3863341 (1975-02-01), Ramer
patent: 3906633 (1975-09-01), Inoue
patent: 5495671 (1996-03-01), Shun-Yi
patent: 5601006 (1997-02-01), Quinn et al.

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