Cutting by use of rotating axially moving tool – With product handling or receiving means – Ejector
Patent
1983-06-29
1987-12-08
Bilinsky, Z. R.
Cutting by use of rotating axially moving tool
With product handling or receiving means
Ejector
175213, 408 17, B23Q 1100
Patent
active
047116099
ABSTRACT:
A drilling tool for one of stationary and mobile use as, for example, a hand tool, and especially a motor powered tool capable of rotary drilling, percussion drilling, or hammer drilling for drilling into concrete, rock, or the like materials and/or in metals of various types. The drilling tool includes a drill head on a shank encompassing at least a bit shank and has a recess extending through the drill head coaxially to a longitudinal axis of the bit shank, which recess is adapted to receive a drilled core. The recess is constructed as a central bore and is provided at an end facing away from the drill head with an outlet or discharge orifice for the drilled core material collected in the recess. The outlet or discharge orifice of the recess in arranged in the shank zone provided outside of the drill head. The drilling tool may be provided with external helical or spherical drilling portions, with the outlet or discharge orifice being arranged at a position spaced from the external helical or spiral drilling portions.
REFERENCES:
patent: 3144912 (1964-08-01), Boehm et al.
patent: 3456743 (1969-07-01), Badcock
patent: 3547206 (1970-12-01), Phillips
patent: 4036308 (1977-07-01), Dallenberg
patent: 4097176 (1978-06-01), Wanner et al.
Bilinsky Z. R.
Sita Baulemente GmbH
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