Implements or apparatus for applying pushing or pulling force – Thill-coupling jack
Patent
1991-05-24
1992-02-18
Watson, Robert C.
Implements or apparatus for applying pushing or pulling force
Thill-coupling jack
B25C 1100
Patent
active
050886924
ABSTRACT:
A heavy duty staple remover 10 for disengaging embedded staples 30 having a concealed back surface 34 and an exposed back surface 32 comprises a handle 12 having a working end 40 and a manipulating end 42 pivotally connected to the handle 12 proximate to their respective working ends. A pair of generally parallel elongate spaced apart anvils 26 are integral with the working end 18 of the handle 12. The anvils 26 being spaced apart to engage substantially the lateral extremes of the concealed back surface 34 of an embedded staple 30. A tongue 42 adapted to engage the exposed back surface 32 of an embedded staple 30 is integral with the working end 40 of the lever 14. When the handle 12 and the lever 14 are in their normal position, the tongue 42 is disposed between the anvils 26 above a plane formed by the anvils 26, but the tongue 42 pivots between the anvils 26 and through the plane formed by the anvils 26 when the lever 14 is pivoted toward the handle 12 to remove a staple.
REFERENCES:
patent: 2202984 (1940-06-01), Drypolcher
patent: 2215662 (1939-10-01), De Generes
patent: 2470726 (1945-11-01), Schafroth et al.
patent: 2481647 (1949-09-01), De Generes
patent: 2563227 (1951-08-01), Emery
patent: 3310288 (1965-05-01), Berry
patent: 4026520 (1977-05-01), Rothfuss et al.
patent: 4685960 (1987-08-01), Thornton
patent: 4805876 (1989-02-01), Blake et al.
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