Implements or apparatus for applying pushing or pulling force – Nail extractor type
Patent
1998-06-15
2000-01-18
Watson, Robert C.
Implements or apparatus for applying pushing or pulling force
Nail extractor type
B66F 1500
Patent
active
060151366
ABSTRACT:
In accordance with the present invention, there is provided a portable fastener removal apparatus for removing an elongate fastener having an axis of radial symmetry from a structure in which the fastener is embedded. The fastener removal apparatus is provided with a housing having an elongate channel which defines a housing axis. The housing is sized and configured to be positionable upon the structure such that the housing axis is coaxially aligned with the axis of radial symmetry. The fastener removal apparatus is further provided with a force transfer member which is movably attached to the housing and has an engagement portion which is concentrically positioned within the channel and formed to releasably engage the fastener. The fastener removal apparatus is further provided with a jack which is attached to the housing and has a force transmission member which is cooperatively engaged to the force transfer member and reciprocally movable along a lifting axis which extends in generally parallel relation to the housing axis. The actuation of the jack, subsequent to the engagement of the engagement portion to the fastener and positioning of the housing upon the structure, results in the movement of the force transmission member along the lifting axis in a direction away from the structure, thereby imparting a lifting force to the force transfer member which moves the engagement portion along the housing axis in a direction away from the structure, thus removing the fastener from therewithin.
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