COMPOSITE ABRASIVE ATTACHMENT ARTICLE FOR CONCRETE POWER TROWEL MACHINE
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United States of America Patent
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Issued Date -
Jul 11, 2019
app pub date -
Mar 11, 2019
filing date -
Jan 10, 2018
priority date (Note) -
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Abstract
The invention provides a float trowel blade attachment for cement floor finishers comprising a rectangular section of sheet metal having a top surface and a bottom surface and having its edges optionally bent upwardly, means for providing to the top surface a three-sided rearwardly open pocket on the back of the section adjacent the leading edge thereof adapted to partially receive a finish trowel blade of the finisher, a spring clip secured to the top surface or the pocket-forming means and extending rearwardly therefrom so as to be engageable with the finish trowel blade to retain the section thereon, and wherein said rectangular sheet metal has attached to its bottom surface using an adhesive or mechanical attachment material interlayer, a composite rigid abrasive element bonded to a resilient backing.
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