Diamond core drill
OwnerLeo Courvilleinventor
Life of this patent
Estimating the term…
Abstract
A diamond core drill using a sealed core bit is fastened centrally by means of a hollow shaft with a slanted cut at one end, that is used in a wedging manner to secure the tool against the work surface. This eliminates the need for an exterior frame and thus permits the use of large hole saws up to 48", held by a simple and economical tool. The tool feed towards the surface is controled via an advance control nut that screws on the filleted part of the shaft. The tool has a water feed system that entraps the water in a chamber formed by the barrel of the saw and the surface to be cut, that forces the water to seep along the sawing gap thus facilitating lubrification of the core bit. The resulting configuration is such as to allow for a single tool operator.
Claims14
A tool for carrotting a concrete surface comprising:
- carrotting means, comprising a hollow cylinder with an open and a closed end, said closed end being sealed and adapted to provide means for supporting said carrotting means, and said open end comprising diamond cutting means,
- motor means connected to said carrotting means for rotational driving of said closed end,
- shaft means for aligning centrally said carrotting means, comprising means for displacing said carrotting means along the axis of said shaft means, independently of the rotational speed of said carrotting means,
- housing means for containing said motor means and said shaft means,
- means for securing said shaft means in the area to be carrotted,
- water feeding means comprising a water connection within said housing, water channeling means from said housing to the interior of said sealed hollow cylinder thereby allowing water passage from exterior to the interior of said carrotting means and to the diamond teeth of said open end.
Dependencies are inferred from the claim text.