Adjustable hurdle
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United States of America Patent
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-
Jul 23, 1991
Grant Date -
N/A
app pub date -
Feb 6, 1990
filing date -
Feb 6, 1990
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
Adjustable hurdle apparatus (10, 110) positionable on a running track as a barrier to runners in track events including a supporting framework (11, 111), a horizontal crossbar (45, 75, 120) to be cleared by runners positioned proximate an extremity of the supporting framework, a base (12, 112) attached to the supporting framework proximate the extremity of said framework opposite the horizontal crossbar for normally maintaining the supporting framework in a substantially vertical orientation relative to the track, and means (25, 26; 75, 76; 130) for infinitely adjustably vertically positioning the horizontal crossbar from competition heights to heights which are substantially below the lowest competition height.
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