Lifting device
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United States of America Patent
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Feb 3, 2004
Grant Date -
Apr 17, 2003
app pub date -
Jan 10, 2001
filing date -
Jan 10, 2001
priority date (Note) -
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status (Latency Note)
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Abstract
A lifting device comprises a rotatable pawl with a pawl arm held in a pawl sleeve. The pawl has an open position in which a rope may be freely adjusted in tightening or loosening directions, and a closed position in which the rope is lockably engaged between the pawl and the pawl sleeve. The pawl has a pawl arm against which the locked rope may be directed to rotate the pawl into an open position. The lifting device also includes a pulley for mechanical advantage, and a base for mounting to a surface. A preferred embodiment of the lifting device of the invention comprises a plurality of pulleys for additional mechanical advantage, and is pivotally attached to an overhead surface.
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