Implements or apparatus for applying pushing or pulling force – Thill-coupling jack
Patent
1995-08-09
1997-08-19
Watson, Robert C.
Implements or apparatus for applying pushing or pulling force
Thill-coupling jack
B25C 1100
Patent
active
056579659
ABSTRACT:
A device for removing staples and tacks includes an upper jaw and a lower jaw pivotally connected to one another, the upper jaw including spaced, parallel teeth disposed in opposing relation to spaced, parallel teeth on the lower jaw. A wedge member extends from the upper jaw, between the teeth thereof and terminates at an acute distal edge beyond pointed distal ends of the teeth. A flat outer surface of the wedge member is angled slightly outward relative to the upper teeth so that the distal edge is disposed at an optimum angle of attack to slide under the staple or tack when closing the jaws, and an inner bearing surface of the wedge member is structured and disposed for engaging and initiating prying of the staple or tack from the object as the upper and lower jaws are further closed toward a closed position, thereby enabling the teeth of the jaws to pass under and engage the staple or tack to complete removal thereof from the object.
REFERENCES:
patent: 2596719 (1952-05-01), Pankonin
patent: 3311346 (1967-03-01), Almond
patent: 4674727 (1987-06-01), McAlister
patent: 5085404 (1992-02-01), Thieleke et al.
patent: 5195724 (1993-03-01), Koo
Downey Robert M.
Watson Robert C.
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