Implements or apparatus for applying pushing or pulling force – Floor jack type – Single throw lever
Patent
1998-09-11
2000-07-11
Watson, Robert C.
Implements or apparatus for applying pushing or pulling force
Floor jack type
Single throw lever
254129, B66F 300
Patent
active
060860480
ABSTRACT:
A board puller for removing boards on a structure generally having a board cue which contacts the back side of boards to be removed, a fulcrum with a pivot that interacts with the frame structure and a handle for providing leverage. The board cue is pivotally attached towards one end of the fulcrum. The handle is rigidly attached to the other end of the fulcrum, but made so that the angle can be adjusted, in the preferred embodiment. In the center of the fulcrum is a pivot typically consisting of a curved or semi-circular member extending perpendicular for the fulcrum. Gauges are provided which are attached to the board cue. The gauges positions and holds the board cue on the boards being removed. This provides a means to remove the board in such a manner that splintering and board breakage is minimized. The board puller can be used with or without the gauges. In operation, the board cue is positioned behind the boards to be pulled or removed. The pivot on the fulcrum is positioned on the stud, joist or other frame structure on which the boards are nailed or screwed. The handle is then either pulled or pushed to remove the boards from the structure. The handle angle can be adjusted to provide the best angle for applying leverage.
REFERENCES:
patent: 1501776 (1924-07-01), Hoffman
patent: 1781833 (1930-11-01), Cummer
patent: 2910271 (1959-10-01), Keehn
patent: 3134573 (1964-05-01), Bizjak
patent: 3973315 (1976-08-01), Thanghe
patent: 5139231 (1992-08-01), Temple
patent: 5165659 (1992-11-01), L'Heureux
patent: 5190266 (1993-03-01), Barrera
patent: 5325576 (1994-07-01), Henderson
Grundstrom Richard
Watson Robert C.
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