Cutting by use of rotating axially moving tool – Tool or tool with support – Having stepped cutting edges
Patent
1993-10-29
1995-04-04
Howell, Daniel W.
Cutting by use of rotating axially moving tool
Tool or tool with support
Having stepped cutting edges
175323, 175394, 408227, B23B 5100, E21B 1044
Patent
active
054031303
ABSTRACT:
A drilling tool and, in particular, a rock drill for the creation of breaches in concrete or masonry for the use of drill hammers is proposed, which is configured as a cross drill bit having four cutting fins. In order to optimize drilling capacity, the drilling tool is provided with a cross drilling head which merges in one piece into a conveyor spiral matched to the drill head. A purpose-specific cutting element facing serves to optimize the drilling capacity.
REFERENCES:
patent: 2383212 (1945-08-01), Pohle
patent: 4852670 (1989-08-01), Peetz et al.
patent: 4924953 (1990-05-01), Moser
patent: 4942931 (1990-07-01), Moser
patent: 5265688 (1993-11-01), Rumpp et al.
Haussmann August
Meyen Hans-Peter
Moser Bernhard
Muetschele Hans-Ulrich
Schindler Harald
Hawera Probst GmbH & Co.
Howell Daniel W.
Robert & Bosch GmbH
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