Compound tools – Hammer – With cutter
Reexamination Certificate
2002-04-15
2004-03-09
Smith, James G. (Department: 3723)
Compound tools
Hammer
With cutter
C007S125000, C254S023000
Reexamination Certificate
active
06701560
ABSTRACT:
BACKGROUND OF THE INVENTION
1. Field of the Invention
This invention relates generally to hand tools especially nail pulling tools, and more particularly to a nail pulling tool with distal and proximal jaws and an elliptical jaw surface.
2. Description of Related Art
The following art defines the present state of this field:
Weyeneth, U.S. Pat. No. 885,816 describes a tool comprising two pivotally connected handles each provided with a jaw having a flat meeting face, each of said faces formed with two longitudinally disposed V-shaped grooves connected to a transverse groove at the rear of the same, the grooves in each jaw adapted to register when the jaws are closed, and a transverse rib projecting from the face of one of said jaws adjacent the transverse groove therein adapted to project inwardly of the face of the other jaw when said faces are brought together.
Springer, U.S. Pat. No. 1,293,066 describes a tool of the character set forth, comprising pivotally connected members having handle shanks and projecting work-engaging elements, and a cutting blade carried by one member, the other member having a channel to receive the blade when the handle shanks are together, said blade thereby including a cutter when the handle shanks are separated and relatively moved toward each other and also constituting a holding means for preventing relative lateral displacement of the handle shanks when the handles are together and certain of the work-engaging elements are employed.
Matsler, U.S. Pat. No. 1,382,109 describes a wire stretching tool comprising a handle member having an enlarged extension on one end, the extension being disposed in right-angular relation to the handle member, the outer end portion of the extension being reduced to provide a shoulder, the reduced portion tapering from the shoulder to the end of the reduced portion, the end being bifurcated for the reception of one end of a wire, whereby the wire may be wound upon one of the fingers resulting from the bifurcation to prevent slipping.
Mitchell, U.S. Pat. No. 1,495,028 describes a tool having a head formed of two jaws movable toward and from each other and formed with opposed cooperating faces, the outer ends of said jaws being similar and longitudinally curved from said opposed faces thereof and transversely curved from side to side throughout their lengths so that the jaws are of substantially uniform thickness throughout their lengths, the opposed faces of said jaws being oppositely recessed divergingly inward from the outer ends thereof; and said recessed portions extending from side to side of said jaw to form roundedly pointed cutters of substantially the thickness of the jaws, which are continuous throughout the transverse curvature of the outer ends of the respective jaws, whereby each of said jaws is provided with a rugged penetrating point having curved cutting edges.
MacPherson, U.S. Pat. No. 1,532,147 describes a fence tool comprising two similar members recessed intermediate their ends for pivotal union with each other, the one member including a removable staple-pulling element inset on the outer face thereof, a pliers jaw, a hammer head, and a wire cutting edge; the other member including a removable staple-pulling element similarly inset, a pliers jaw, a claw element, and a wire cutting edge, the elements functioning in pairs upon co-action of the two members.
Perrin, U.S. Pat. No. 1,644,352 describes a handle comprising pivotally attached sections, a hammer head on the extremity of one of the pivotal sections, and tapered corrugated extensions on the inner edges of the handle sections commencing at the pivoted joining thereof and extending rearwardly therefrom in registering relation, adapted to grip the end portion of a wire, for firmly holding the same while intermediate portions of said wire are being wound around the hammer head by manipulation of the device, the space between the tapered extensions converging forwardly and terminating substantially at the pivotal point of said handle sections to provide a gripping capacity of increasing magnitude as the wire is drawn forwardly during the winding operation.
Settles, U.S. Pat. No. 1,949,335 describes a pair of crossed pivoted levers, enlarged extensions rigid with the pivoted ends of the levers, the extensions being formed with relative deep opposed V-shaped notches that extend outwardly from the meeting edges thereof and across the entire width of the extensions to form cooperating jaws, the jaws being provided with a single pair of opposed relative deep V-shaped notches adjacent one side of the tool to provide the jaws with cooperating relatively wide pincher portions at one side and relatively narrow elongated staple-extracting portions at the other side having thin straight contacting edges.
Feigion, U.S. Pat. No. 2,313,530 describes a combination tool for connecting the ends of wires in the construction of fences, comprising a pair of pliers for holding an end of the terminal loop of one of the wires, a spindle fixed to and projecting from one of the jaws of the pliers at right angles thereto, and spaced apart circular heads on the spindle with a slot in one of the heads for holding an end of the terminal interengaging loop of the other wire, the spaced apart heads cooperating with the pliers and spindle in twisting the connected terminal loops on each other respectively as the tool is swung around the same with the heads bearing on the wires.
Andrews, U.S. Pat. No. 2,462,250 describes a pair of tongs pivoted together to form a pair of jaws on one side of the pivot and a pair of handles on the other side of the pivot, the jaws having parallel contact faces when the handles are pressed toward one another and having lateral extensions shaped to form a hammer head, one of the jaws having a tooth projecting into the other jaw adjacent to and on one side of the median plane of the head and having a recess adjacent to and on the other side of tile said median plane, and the other jaw having a similar tooth mound opposite the recess and having a recess opposite the first tooth, the teeth being operable for engagement under an embedded staple, and the outer faces of the teeth lying in the end surface of the head while the under faces of the teeth are tapered for exerting outward pull on the staple when the handles pressed toward one another.
De Armond, U.S. Pat. No. 2,501,500 describes a wire-working tool comprising a head, a handle integral with the head, the head providing a shoulder at one side of said handle and having a rounded outer surface opposite said handle and a rounded end surface at one side of said handle, a second handle having a jaw on one end thereof, means pivotally connecting said second handle to said head-attached handle so that said jaw is opposed to said shoulder at the side of said head-attached handle opposite said rounded end surface, whereby a wire may extend along said rounded end surface and said shoulder and be clamped between said shoulder and said jaw and said rounded outer surface may provide a fulcrum for stretching said wire, said rounded end surface having a wire-positioning groove therein and said rounded outer surface, said shoulder and said jaw being serrated.
Fike, U.S. Pat. No. 5,636,398 describes a multiple application hand tool adapted for constructing or repairing wire fences, the tool having a pair of body members interconnected for substantially pivotal movement relative to each other about an axis of reference between a first operational position and a second operational position, the body members individually having head portions engagable with each other in the first operational position to form a substantially unitary hammer head and claw extending substantially in opposite directions from each other on one side of the axis of reference and handle portions deployed on the opposite side of the axis of reference for movement of body members between the first and second operational positions and individually having grasping surfaces deployed for grasping engagement with a wire for tensioning of the wi
Gene Scott & Patent Law & Venture Group
Smith James G.
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