Rock drill

US6260637A · kind A · utility

Assignee

• Hawera Probst GmbH · DE

Inventors

• August Haussmann · Ravensburg, DE
• Mathias Fuss · Weingarten, DE
• Bernhard Moser · Altshausen, DE
• Thomas Wagegg · Leutkirch im Allgäu, DE

Key dates

• Filing date: May 11, 1999
• Grant date: Jul 17, 2001
• Expiry date: May 11, 2019

Classification

• Technology area (CPC E): Fixed Constructions
• CPC primary: E21B10/445
• WIPO field: Civil engineering
• WIPO sector: Other fields

Abstract

A rock drill which has a cutting tip of roof-shaped design at its front end is proposed. In order to achieve a reduction in the loading of the carbide cutting tip or an increased drilling capacity in particular in concrete, the flanks are subdivided into flank sections in order to achieve a slimmer embodiment of the drill head.