Patent · US Active

Device for extracting drilling sludge and the use thereof

US12358091B2 · kind B2 · utility

0Cited by

6References

12Claims

0Family size

Assignee

Hilti Aktiengesellschaft · LI

Inventors

Lionel BARBIER · Munich, DE
Stefan Franz · Munich, DE
Georg Holzmeier · Marktoffingen, DE
Matthias Mazur · Hamburg, DE
Paul Fally · Hamburg, DE
Eduard Sever · Bludenz, AT

Key dates

Filing date	Mar 11, 2020
Grant date	Jul 15, 2025
Priority date	—
Expiry date	Jun 23, 2042

Classification

Technology area (CPC E)Fixed Constructions
CPC primaryE21B21/015
WIPO fieldCivil engineering
WIPO sectorOther fields

Abstract

A device for extracting drilling sludge for use at difficult to access locations on a building site includes a main body. The main body has a cavity on a lower side of the main body and a drilling sludge that is disposed in the cavity during a use of the device is extractable from the cavity by a suction device. The main body also has an extraction opening which opens into the cavity.

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