Boring element for a ground boring device

US9206682B2 · kind B2 · utility

Assignee

• TRACTO-TECHNIK GmbH & Co., KG · DE

Inventors

• Franz-Josef Puttmann · Lennestadt, DE
• Peter Grass · Lennestadt, DE
• Gerhard Völkel
• Andreas Riekes · Schmallenberg, DE
• Frank Prutti · Lennestadt, DE

Key dates

• Filing date: Sep 24, 2010
• Grant date: Dec 8, 2015
• Expiry date: Oct 14, 2032

Classification

• Technology area (CPC E): Fixed Constructions
• CPC primary: E21B7/046
• WIPO field: Civil engineering
• WIPO sector: Other fields

Abstract

A boring element of a ground boring device includes a housing having a receptacle, a transmitter arranged in the receptacle of the housing and supported in the receptacle for movement in a longitudinal-axial direction of the boring element, and a front buffer connecting the transmitter with the housing. The transmitter moves towards a rear in the receptacle as a result of a deformation of the front buffer, when a rear percussive impulse is applied to the boring element, without the transmitter coming directly into contact with another part of the boring element.