Staple removers

Details Staple removers Staple removers

1995-09-15

1997-02-25

Watson, Robert C.

Implements or apparatus for applying pushing or pulling force

Thill-coupling jack

B25C 1100

Patent

active

056053207

ABSTRACT:
A staple remover for extracting a conventional clinched office staple having a central crown portion and two legs extending with arcuate bends from opposite ends of the crown through staple holes in the stapled set of paper sheets, the remover having a first member with two spaced apart prongs inserted between the crown of the staple and the stapled set, and a second member pivotally mounted for movement relative to the first member, and including a nose member moving between and closely adjacent to, but spaced from, the two spaced prongs. The nose member, upon the relative movement between the first and second members, applies staple deformation forces at spaced apart positions adjacent the opposite ends of the crown of the staple, adjacent the clinched staple legs, and adjacent the prongs, on the opposite side of the crown from the prongs, to cause the ends of the crown adjacent the two clinched staple legs to be deformed, without substantial deformation of the central portion of the crown of the staple, so as to allow the two staple legs to be withdrawn substantially through the same staple holes in the paper sheets.

REFERENCES:
patent: 4026520 (1977-05-01), Rothfuss et al.
patent: 4589631 (1986-05-01), Markus
patent: 4805876 (1989-02-01), Blake et al.
patent: 4903945 (1990-02-01), Wang
patent: 5088692 (1992-02-01), Weiler
patent: 5451231 (1995-09-01), Rabenau et al.

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