초록 ▼

A repair device which is used to restore planarity to concave damage in a drywall board, which is quickly installed by chucking to a reversible power driver in the manner of a drill bit, thus creating its own hole. The device is inserted into the wall cavity, then powered in the reverse direction to

A repair device which is used to restore planarity to concave damage in a drywall board, which is quickly installed by chucking to a reversible power driver in the manner of a drill bit, thus creating its own hole. The device is inserted into the wall cavity, then powered in the reverse direction to actuate in the manner of a jack to push out a damaged drywall piece, which is still hingedly attached by the cardboard facing. Thus united, the cracks are bonded with cement, while the inexpensive device remains inside the wall, acting as a permanent prop.

대표청구항 ▼

[ What is claimed is:] [1.] A device for use in repairing a depression in a drywall board, wherein the drywall board has a substantially planar front surface surrounding the depression, and wherein the depression comprises a deflected drywall piece which is deflected rearwardly out of the planar fro

[ What is claimed is:] [1.] A device for use in repairing a depression in a drywall board, wherein the drywall board has a substantially planar front surface surrounding the depression, and wherein the depression comprises a deflected drywall piece which is deflected rearwardly out of the planar front surface, said device comprising:a) a threaded rod having a near end and having a far end;b) a drill pad, having a rotary cutting means for creating a hole in the deflected drywall piece if the drill pad were to be impressed against the deflected drywall piece and rotated in a drilling rotation direction, said drill pad rotatably fixed to the far end of the threaded rod;c) a one-way clutch means for one-way clutching continuous rotation in only one direction such that:if the threaded rod is rotated in the drilling rotation direction, then said one-way clutch means unites the drill pad with the threaded rod, causing it to turn in unison with the threaded rod; and such thatif the threaded rod is turned in an actuation rotation direction and the drill pad is restrained from turning, then said one-way clutch means permits the threaded rod to turn freely; andd) an expandable means for expanding, which at times assumes a closed position having a size which would pass through the hole, and when released expands to an open position having a size which would not pass through the hole, said expandable means threadably engaged with the threaded rod, wherein if the threaded rod is rotated in the actuation rotation direction and the expandable means is restrained from turning, then said expandable means moves in a direction away from the far end of the threaded rod.