History
The form of destapler described above was invented by William G. Pankonin of Chicago, Illinois. A patent application for the same was filed on 12 December 1932, granted on 3 March 1936 and published on 3 April 1936 as patent document US 2,033,050.
A modified version, also capable of removing broken staples, was patented by Joseph A. Foitle of Overland Park, Kansas, but does not see widespread use, despite overcoming several disadvantages of the former device by a simple, yet novel and inventive, modification. The patent for the latter invention was filed on 28 May 1969 and was granted on 28 December 1971, published as US 3,630,486 A. An excerpt from the patent application reads as follows:
"... A device for removing broken portions of wire staples ... comprising a pair of overlying planar arms pivoted together on an axis normal thereto, said arms having cooperating notches ... whereby relative pivotal motions ... may be engaged over the projecting portion of a broken staple..."
Read more about this topic: Staple Remover
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