Commercial lifting device-jack stand
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United States of America Patent
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Aug 25, 2015
Grant Date -
May 7, 2015
app pub date -
Nov 4, 2013
filing date -
Nov 4, 2013
priority date (Note) -
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Abstract
A jack stand for use with a power unit having a slide forward bridge for positioning by the jack stand; and having a pair of leveling pads with inner roller bearings thereon for engaging an upper lifting plate of the jack stand, and a bottom plate having openings therein for engaging a mobile rack for transporting the jack stands. The jack stand has the bottom plate with a series of telescopic frames extendable therefrom, and the upper lifting plate extending from the upper frame, having side flanges with a rectangular bottom surface thereon for engaging the roller bearing of the power unit. A pair of bumpers are attached to the lowermost vertical frame with one extending forwardly and one extending rearwardly (one of which is always positioned) for engaging the slide forward bridge, as the jack stand is loaded into the power unit. The bottom plate has a pair of rectangular opening therein (one of which is always positioned) for engaging one of a plurality of rectangular fingers, extending from the platform of the mobile rack.
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