Multi-purpose hole punch

Details Multi-purpose hole punch Multi-purpose hole punch

2011-07-19

2011-07-19

Choi, Stephen (Department: 3724)

Cutting

Means to drive or to guide tool

Plural tools selectively engageable with single drive

C083S618000, C083S687000

Reexamination Certificate

active

07980164

ABSTRACT:
A multi-purpose hole punch, having a main body pivotal configured with a pivot shaft, an upper end of which is pivotal configured with a press plate, and the lower end is connected to a base plate, thereby forming a gap between the main body and the base plate. Each through hole of three sides of the main body has a key-press, and a punch is located in each of the through holes beneath the key-press. Two joined transform plates are pivotal configured on two sides in the gap. One of the transform plates is configured with an unfilled corner able to fixedly position a corner of paper, while the other transform plate forms an unfilled corner able to fixedly position the edge of paper. Accordingly, rotating the press plate and pressing the key-presses above the two unfilled corners enables punching holes in the corner and margin of the paper.

REFERENCES:
patent: 440835 (1890-11-01), Wickman
patent: 1049676 (1913-01-01), Cousins et al.
patent: 6672191 (2004-01-01), Lin
patent: 2002/0002891 (2002-01-01), Arnold
patent: 2005/0072286 (2005-04-01), Shih

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