Reinforced extruded tubing for telescopic handle for trolley-type carry case and carry case incorporating same
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United States of America Patent
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Feb 11, 2014
Grant Date -
May 3, 2012
app pub date -
Jan 20, 2011
filing date -
Jan 21, 2010
priority date (Note) -
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Abstract
Lightweight reinforced modular tubes of extruded plastic material are provided for the first stage of a trolley-type carry case, in combination with a locking mechanism, which facilitates effective extension and collapse of a multi-telescopic handle system. The tubes are made of extruded plastic material and include a pair of opposed metal strips having appropriately spaced and dimensioned apertures for reception of spring loaded locking pins of the telescopic system. The metal strips are respectively retained in position by a pair of radially extending elongated flange members which overlap marginal positions of the strips. The tubes and the metal strips can easily and quickly be cut to size to fit any size carry case. While the metal insert strips are preferably made of aluminum, any material stronger than the extruded plastic of the first stage tube can be used, i.e., steel, nylon, PVC, polyethylene, polycarbonate, or the like.
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