1980-09-08
1982-10-19
Kunin, Stephen G.
Bridges
B25C 300
Patent
active
043545408
ABSTRACT:
A screw holder system for manually positioning screws for driving provides a finger-protecting spool-shaped body with coaxial bore having closer to the bottom end than to the top a screw-centering, resilient biasing apparatus; similar bottom-plan and top-plan aspects suit the system for inverted use to hold longer screws; a bushing held by the biasing apparatus adapts the system for holding a different range of screws, with smaller head diameter; a self-levelling device is provided for use either-end-up; an axial extender provision adapts the system for use with longer screws or alternatively with greater screwdriven overlap.
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Kunin Stephen G.
McClellan, Sr. John F.
Zatarga J. T.
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