Masonry drill head
AssigneesCeratizit Hard Material Solutions S.A R.L., CERATIZIT Luxembourg S.a.r.l.
InventorsRobin BUONO, Cecilio LASCHIAZZA, Michael MAGIN, Luca PICCO
Life of this patent
Estimating the term…
Abstract
A masonry drill head is made from a sintered cemented carbide. The masonry drill head has an at least section-wise planar joining end for heat induced joining to a shaft, a working end for shattering masonry material under a percussive motion, at least two conveying webs each emerging from the joining end and at least two conveying grooves each extending between two of the conveying webs. A cross-sectional solid material area of the masonry drill head increases towards the joining end, such that a masonry material debris intake of at least one of the conveying grooves increases towards the working end.
Claims17
1-15. (canceled)
A masonry drill head, comprising:
- an at least section-wise planar joining end for heat induced joining to a shaft;
- a working end for shattering masonry material under a percussive motion;
- at least two conveying webs each emerging from said at least section-wise planar joining end;
- at least two conveying grooves each extending between two of said conveying webs, wherein a cross-sectional solid material area of the masonry drill head increases towards said at least section-wise planar joining end, such that a masonry material debris intake of at least one of said conveying grooves increases towards said working end;
- and
- the masonry drill head being made from a sintered cemented carbide.
A masonry drill head, comprising:
- an at least section-wise planar joining end for heat induced joining to a shaft;
- a working end for shattering masonry material under a percussive motion;
- at least two conveying webs each emerging from said at least section-wise planar joining end;
- at least two conveying grooves each extending between two of said conveying webs, wherein at least one of said conveying webs is twisted more on parts of said at least section-wise planar joining end than on parts of said working end resulting in a twisted conveying web;
- and
- the masonry drill head being made from a sintered cemented carbide.
A masonry drill head, comprising:
- an at least section-wise planar joining end for heat induced joining to a shaft;
- a working end for shattering masonry material under a percussive motion;
- at least two conveying webs each emerging from said at least section-wise planar joining end;
- at least two conveying grooves each extending between two of said conveying webs, wherein a cross-sectional solid material area of the masonry drill head increases towards said at least section-wise planar joining end, such that a masonry material debris intake of at least one of said at least two conveying grooves increases towards said working end, wherein at least one of said conveying webs is twisted more on parts of said at least section-wise planar joining end than on parts of the working end resulting in a twisted conveying web;
- and
- the masonry drill head being made from a sintered cemented carbide.
Dependencies are inferred from the claim text.