Extendable arm
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United States of America Patent
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-
Jan 3, 2023
Grant Date -
Sep 10, 2020
app pub date -
Sep 26, 2019
filing date -
Mar 4, 2019
priority date (Note) -
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status (Latency Note)
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Abstract
An extendable arm includes first and second rigid members forming a cross unit. Each rigid member includes one end portion including one of end coupling shafts, the other end portion including the other end coupling shaft, and a middle portion including a middle coupling shaft. The one end portion of each rigid member includes a bottom-side outer side surface that surface-contacts a base surface when the extendable arm in an extended state is placed thereon. The other end portion of each rigid member includes a top-side outer side surface extending parallel to the bottom-side outer side surface of each rigid member. The middle portion of each rigid member includes a middle strip region passing through a middle coupling shaft and perpendicular to the bottom-side outer side surface and the top-side outer side surface.
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