Crossbar positioning apparatus and method
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United States of America Patent
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Sep 13, 2011
Grant Date -
Nov 5, 2009
app pub date -
Aug 29, 2008
filing date -
Aug 31, 2007
priority date (Note) -
Expired
status (Latency Note)
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Abstract
An extender device and system for adjusting the height of a crossbar analogue in pole vault, high jump, horse jumping or other crossbar clearing activities. The system may include a plurality of pulley like devices that maintain a cord spaced about a practice structure. A crossbar analogue is coupled to the cord and the cord arranged so that the crossbar analogue may be readily moved upward or downward. An extender is disclosed that facilitates arrangement and movement of the cord and crossbar analogue in this manner.
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