Retractable column and method of forming
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United States of America Patent
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Apr 12, 2011
Issued Date -
N/A
app pub date -
Jul 31, 2009
filing date -
Sep 22, 2000
priority date (Note) -
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Abstract
The present invention is an improved apparatus and method for forming a retractable tower or column. The present invention includes pointed hooks wherein the hooks are attached to each section of a section chain, one in a horizontal direction and one in an off-set manner. The section chains are placed on a take up mechanism in an operable position and then raised utilizing a motor. As the section chains are raised, they are guided by a guide tower, rollers, shims, and gear racks into a position whereby hooks from adjacent sections of the section chains form coupled engagements. The coupled engagement of the hooks of the sections of each adjacent section chains thereby form the column.
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