Self releasing holddown for mechanical dock levelers
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United States of America Patent
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Oct 6, 2015
Grant Date -
Aug 18, 2011
app pub date -
Jan 13, 2011
filing date -
Jan 15, 2010
priority date (Note) -
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Abstract
An improved holddown mechanism includes: (a) an elongated member having a pivoting end, a distal end and a nominal diameter and length, (b) an attachment arm having a pivoting end and a distal end, and (c) a tubular, adjustable diameter, wire mesh or Kellems grip having an attachment arm end and a release end wherein its adjustable diameter expands when this grip is put into compression and contracts when it is put into tension, and wherein the elongated member and the grip are configured such that the elongated member's diameter is such that it can fit within the tubular grip when its adjustable diameter is in an expanded state, and wherein the grip is further configured to engage the elongated member when a prescribed tensile force is applied to the tubular grip.
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