Tool driving or impacting – Impacting devices
Patent
1994-02-07
1994-12-06
Smith, Scott A.
Tool driving or impacting
Impacting devices
173132, B25D 102, E02D 704
Patent
active
053701925
ABSTRACT:
A one piece combination chisel/hammer/crowbar device comprising a linear lower rod of a solid circular cross-sectional configuration fabricated of a rigid hard material and having an upper end and a lower end with a planar striking surface at the upper end and a linear chisel point at the lower end; a hollow tube with a circular cross-sectional configuration fabricated of a rigid hard material and having an upper end and a lower end with external threads at its upper end, the interior diameter being such as to be slidably received over the linear lower rod at the lower end of the tube and an apertured cap having internal screw threads positionable over the upper end of the tube and providing a bearing surface on the lower edge thereof; a linear upper rod of a solid cross-sectional configuration fabricated of a rigid hard material and having an upper end and a lower end with the lower end having an enlarged head with a planar striking surface for striking the striker surface, the enlarged head being such as to be slidably received within the tube with the upper end of the upper rod extending above the upper end of the tube, the upper end of the upper rod being formed with internal threads and external threads; and an enlarged handle having external threads at its lower end threadedly received in the screw threads at the upper end of the upper rod and an enlarged collar at its upper end and a nut with enlarged threads over the exterior threads of the upper rod and reduced threads over the threads of the handle.
REFERENCES:
patent: 3117378 (1964-01-01), Bowen
patent: 3519087 (1970-07-01), Santi
patent: 4310057 (1982-01-01), Brame
patent: 4624323 (1986-11-01), Burrola
patent: 5097912 (1992-03-01), Bowers
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