Implements or apparatus for applying pushing or pulling force – Thill-coupling jack
Patent
1996-09-04
1998-05-12
Watson, Robert C.
Implements or apparatus for applying pushing or pulling force
Thill-coupling jack
B25C 1100
Patent
active
057495645
ABSTRACT:
A device for removing staples from papers, cloth, or other material without tearing or mutilating the material. The device utilizes a heel of palm to finger gripping action to facilitate a more natural action for removing staples. Staples are extracted by way of a jaw which opposes a wedge-shaped piece to an abutting plate piece, which straightens the staple while simultaneously pulling it out of the paper in a perpendicular direction. The wedge-shaped piece includes a portion where its width and thickness increase to dimensions wherein the sum of the width plus twice the thickness exceeds the total length of the three sides of the staples being removed, thus facilitating complete extraction.
REFERENCES:
patent: 1956166 (1934-04-01), Cavanaugh
patent: 2539171 (1951-01-01), Yerkes
patent: 2567021 (1951-09-01), Maynard
patent: 2592570 (1952-04-01), Hofstetter
patent: 2662727 (1953-12-01), Yerkes
patent: 2675989 (1954-04-01), Vogel
patent: 5299355 (1994-04-01), Boda et al.
Watson Robert C.
Yablon Jay R.
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