US 5,639,007 A · Stapler with indicator assembly for indicating and dispensing staples of different sizes

Abstract

A stapler includes a staple magazine rotably connected to an operating assembly. The operating assembly rotates around a shaft in response to pressure applied by a user to a operating handle. The staple magazine includes a plurality of staple clips capable of holding different size staples. The stapler includes means for determining a desired staple size. The staple magazine is rotated by the user to select a desired size staple. A stopper assembly, slidably mounted on a base of the stapler, is positioned by the user to limit and guide a front edge of a stack of papers being stapled. The means for determining a desired staple size and the stopper assembly are free from interference with each other. The stopper assembly is constructed so that a portion contacting the front edge of the stack of papers remains perpendicular to the front edge during a stapling operation.

Claims3

Dependent claims

A stapler, comprising:

means for driving a staple;
means for determining a properly sized staple to penetrate and staple an object;
means for selecting said properly sized staple from a magazine containing at least two differently sized staples;
a stopper assembly;
said stopper assembly being held in a first base of said stapler;
said first base including a plurality of grooves;
said grooves aligned with said magazine;
means for trapping said stopper assembly in said grooves;
said determining means and said stopper assembly being free from interference with each other;
means for slidably engaging said stopper assembly with a second base of said magazine of said stapler throughout a length of said second base;
said stopper assembly including a catching ridge;
said catching ridge engaging one of a plurality of catching grooves in said second base;
and
means for maintaining said stopper assembly in a vertical position during a stapling operation.

11 more elements

Dependencies are inferred from the claim text.

Stapler with indicator assembly for indicating and dispensing staples of different sizes

Life of this patent

Stapler with indicator assembly for indicating and dispensing staples of different sizes

Life of this patent

Abstract

Claims3