Base for a paper punch and method of forming same

Details Base for a paper punch and method of forming same Base for a paper punch and method of forming same

2007-02-01

2010-06-01

Choi, Stephen (Department: 3724)

Cutting

Tool or tool with support

Cutting couple type

C083S698910

Reexamination Certificate

active

07726227

ABSTRACT:
A method of forming a base (118) for a paper punch (154) is disclosed as including the steps of (a) providing a cast iron core (102) with a wall (104) and a plate (106) with a hole (108); (b) providing two generally U-shaped cast iron plates (110); (c) positioning the plates (110) spaced apart from and on opposite sides of the core (102); and (d) insert-molding the core (102) and plates (106) with a plastics material, e.g. ABS.

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patent: 7281501 (2007-10-01), Leufen et al.
patent: 2004/0194281 (2004-10-01), Endemann et al.
patent: 2004/0231474 (2004-11-01), Bier et al.
patent: 2007/0095191 (2007-05-01), Moss et al.
patent: 0861679 (1998-09-01), None

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