Telescoping mast assembly
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Apr 7, 1992
Issued Date -
N/A
app pub date -
May 9, 1991
filing date -
Sep 10, 1990
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A telescoping mast assembly includes a plurality of interconnected mast sections nested within each other for movement between a fully retracted height and a fully extended height. A novel, rigid drive assembly, disposed within the interconnected mast sections, telescopes the mast sections to any position between the fully retracted and the fully extended heights. The rigid drive assembly is constructed of two interconnected, flexible chain elements which accurately position the interconnected mast sections.
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Family
International Classification(s)
Cited Art Landscape
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