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US 2010/0148137 A1Published application
Fastener extraction tool
OwnerMichael J. Foleyinventor
Life of this patent
Estimating the term…
Abstract
The hand tool is used to extract a fastener from a material by preferably gripping the fastener from a horizontal orientation. The hand tool has a head with two pivotally joined halves including at least one pair of gripping jaws. The tool head preferably includes tips that may be used to dig beneath a fastener head that is flush with or set below a surface. The tool includes a pair of handles operable to close the gripping jaws. The handles are preferably offset above the plane of the tool head such that they operate as a lever in cooperation with a fulcrum on the bottom of the tool head to extract the fastener.
Claims19
A fastener extraction tool comprising:
- a) a tool head comprising:
- a pivot portion:
- a first half comprising:
- a first forward extending portion extending longitudinally forward beyond the pivot portion, the first forward extending portion forming a first forward jaw having a first gripping surface formed on a first inward side of the first forward extending portion;
- and
- a first rearward extending portion extending longitudinally rearward beyond the pivot portion;
- a second half pivotally joined to the first half at the pivot portion, the second half comprising:
- a second forward extending portion extending longitudinally forward beyond the pivot portion, the second forward extending portion forming a second forward jaw having a second gripping surface formed on a second inward side of the second forward extending portion;
- and
- a second rearward extending portion extending longitudinally rearward beyond the pivot portion;
- the tool head having a bottom surface formed by the first forward extending portion and the second forward extending portion and sloping longitudinally upward from a bottom surface of the pivot portion;
- b) a first handle extending from the first rearward extending portion and having a first gripping portion;
- and
- c) a second handle extending from the second rearward extending portion and having a second gripping portion;
- wherein actuating the handles causes the pivot portion to rotate and the forward jaws to open and close;
- and
- wherein the bottom surfaces are formed to provide a range of motion of a longitudinally-moving fulcrum of rolling contact with a workpiece from a bottom surface of the forward extending portions to at least the edge of the bottom surface of the pivot portion of the tool head during extraction of a fastener embedded in the workpiece and gripped by the forward jaws.
14 more elements
A fastener extraction tool comprising:
- a) a tool head comprising:
- a pivot portion:
- a first half comprising:
- a first downward extending portion extending longitudinally downward beyond the pivot portion, the first downward extending portion tapering in at least one dimension to a first tip to form a first sharp implement;
- the first downward extending portion forming a first downward jaw having a first gripping surface formed on a first inward side of the first downward extending portion;
- and
- a second half pivotally joined to the first half at the pivot portion, the second half comprising:
- a second downward extending portion extending longitudinally downward beyond the pivot portion;
- a second downward extending portion extending longitudinally downward beyond the pivot portion, the second downward extending portion tapering in at least one dimension to a second tip to form a second sharp implement;
- the second downward extending portion having a bottom surface sloping longitudinally away from the second tip;
- b) a first handle extending upward from the first half and having a first gripping portion;
- and
- c) a second handle extending upward from the second half and having a second gripping portion;
- wherein actuating the handles causes the pivot portion to rotate and the downward jaws to open and close;
- and
- wherein a fulcrum on the bottom surface of the second downward extending portion moves in relation to the surface of a workpiece as the handles are moved parallel to the plane of the workpiece during extraction of a fastener from the workpiece using the downward jaws.
13 more elements
Dependencies are inferred from the claim text.