Patent · US Expired

Drilling tool

US6976549B2 · kind B2 · utility

10Cited by

9References

10Claims

0Family size

Assignee

Hawera Probst GmbH · DE

Inventors

August Haussmann · Ravensburg, DE
Bernhard Moser · Altshausen, DE
Rainer Widmann · Trochtelfingen, DE
Marco Lang · Ravensburg, DE

Key dates

Filing date	Feb 28, 2003
Grant date	Dec 20, 2005
Priority date	—
Expiry date	May 21, 2023

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB23B2251/50
WIPO fieldMachine tools
WIPO sectorMechanical engineering

Abstract

The invention relates to a drilling tool (1), in particular for working concrete, rock, masonry and suchlike materials, having a tool head with cutting body (5) which has at least one front rake face (9, 10), at least one rear flank ([lacuna] 18) and at least one front-end cutting edge (7, 8), the cutting edge (7, 8) separating the rake face (9, 10) and the flank ([lacuna] 18). In this case, the rake face (9, 10) is formed by at least two cutting faces (11, 13; 12 [lacuna]) merging into one another at at least one second cutting edge (15, 16).

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.