Patent · US Expired

Drilling tool

US7001120B2 · kind B2 · utility

15Cited by

14References

21Claims

0Family size

Assignee

Hawera Probst GmbH · DE

Inventors

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

Key dates

Filing date	Sep 30, 2002
Grant date	Feb 21, 2006
Priority date	—
Expiry date	Jan 27, 2024

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T408/9098
WIPO fieldCivil engineering
WIPO sectorOther fields

Abstract

The invention relates to a drilling tool (36), in particular for working concrete, rock, masonry and suchlike materials, having a single- or multi-edge tool head with at least one cutting body (1) which comprises a central region (12) which is designed in a roof shape, has rake faces and flanks and is defined laterally by two outer regions (13, 14) set back in the effective direction of the drill. In this case, the ground surfaces of the central region (12) form a pyramidal point (15) while avoiding the formation of a chisel edge.

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