Drywall sander
OwnerWilliam Matechukinventor
Life of this patent
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Abstract
A motorized rotary sander is provided with an efficient dust pick-up system which particularly adapts it to drywall sanding. The abrasive discs used in the system are designed to provide an improved finish on drywall and similar surfaces. The discs are quickly and easily replaced by virtue of the bayonet type fastening system. The combination results in a highly efficient drywall sanding device which requires minimum skill on the part of the user and can produce superior results.
Claims14
A motorized sander comprising a sanding head pivotally mounted on one end of a tubular wand, a drive motor mounted on the other end of said wand, a flexible drive shaft coupled to said drive motor, said sanding head including a rotary drive plate coupled to said flexible drive shaft, a shroud surrounding the periphery of said drive plate, an abrasive disc mounted concentrically on said drive plate and driven by engagement of the contacting surfaces of said drive plate and said abrasive disc, and including a vacuum line connected from said shroud to said one end of said wand and a vacuum outlet connected to said wand intermediate its ends, said vacuum outlet being formed to receive a flexible vacuum hose.
A motorized sander comprising a sanding head pivotally mounted at one end of a hollow tubular wand, a motor having a rotating shaft mounted on the other end of said wand, a flexible drive arranged within said wand consisting of a flexible sheath and a flexible shaft supported within said sheath, said sanding head comprising a support plate, a shaft mounted in a bearing on said support plate, a circular drive plate mounted at its center on said shaft, said flexible shaft connecting said rotating shaft to said shaft mounted in said bearing, an annulus of flexible plastic foam bearing an abrasive coating concentrically mounted on said drive plate, a vacuum line extending from said one end of said wand and enclosing said flexible drive, a shroud surrounding said support plate and the periphery of said drive plate, said vacuum line terminating in said shroud and a vacuum outlet at a point intermediate the ends of said wand whereby a vacuum hose connected to said vacuum outlet will cause a flow of air from said shroud through said vacuum line, through said wand and out through said vacuum outlet.
Dependencies are inferred from the claim text.