Expandable shoe having screw drive assemblies
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United States of America Patent
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Sep 1, 2009
Grant Date -
Mar 17, 2005
app pub date -
Jun 24, 2004
filing date -
Nov 12, 1999
priority date (Note) -
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Abstract
An expandable shoe includes an outer shell and an adjustable inner assembly within the outer shell. The inner assembly includes a first sole portion, a second sole portion, and a screw drive. The screw drive has a screw passing through a screw insert mounted to one of the first and second sole portions and a screw-receiving portion attached to the other of the first and second sole portions, so that turning the screw causes the sole portions to move relative to one another, thereby adjusting a dimension of the shoe. The shoe includes a manually operable control to turn the screw without the need for tools. The control is operable between a first position in which the control resists movement around an axis defined by the screw and a second position in which the control can be used to turn the screw to adjust a dimension of the footwear.
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