Combination puncher

Details Combination puncher Combination puncher

2005-01-04

2005-01-04

Goodman, Charles (Department: 3724)

Cutting

Means to drive or to guide tool

Plural tools selectively engageable with single drive

C083S691000, C083S167000

Reexamination Certificate

active

06837136

ABSTRACT:
A hand operated combination two-and-three-hole puncher for making holes in paper and other sheet materials is shown and described.The two-hole punch assembly and the three-hole punch assembly are fixedly disposed on the common platform either in-line, or at a predetermined angle, to each other in such manner that both punch assemblies share a common punch subassembly and a common foot. The common punch subassembly could be activated using either the press lever frame of the two-hole punch assembly or the press lever frame of the three-hole punch assembly thus enabling the common punch subassembly to punch a hole in the process of the two-hole perforation or the three-hole perforation without the readjustment.

REFERENCES:
patent: 1335632 (1920-03-01), Zimmer
patent: 2534094 (1950-12-01), Yerkes
patent: 3073199 (1963-01-01), Yerkes
patent: 3808933 (1974-05-01), Buan
patent: 3944373 (1976-03-01), Farjon et al.
patent: 4466322 (1984-08-01), Mori
patent: 4688457 (1987-08-01), Neilsen et al.
patent: 4724734 (1988-02-01), Hse
patent: 5012712 (1991-05-01), Nordquist
patent: 5342276 (1994-08-01), Fujiwara et al.
patent: 5974929 (1999-11-01), Kugel et al.
patent: 6076447 (2000-06-01), Damask

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