Patent · US Active

Handling device for drill rods and so-called top drive having such a handling device

US9376873B2 · kind B2 · utility

2Cited by

3References

10Claims

0Family size

Assignee

BENTEC GMBH DRILLING & OILFIELD SYSTEMS · DE

Inventors

Johannes Moss · Nordhorn, DE
Heiko Schmidt · Lappersdorf, DE
Gerhard Groβe Veldmann · Bad Bentheim, DE

Key dates

Filing date	Nov 19, 2012
Grant date	Jun 28, 2016
Priority date	—
Expiry date	Mar 16, 2033

Classification

Technology area (CPC E)Fixed Constructions
CPC primaryE21B19/165
WIPO fieldCivil engineering
WIPO sectorOther fields

Abstract

The invention relates to a handling unit for drill rods having an elevator bracket (30) which can be swiveled by means of a tilt arm (34) under the influence of a tilt cylinder (32), and means (42) for detecting a position of the at least one elevator bracket (30), in which is provided at least one valve (50) as means for detecting the position of the or each elevator bracket (30) and as part of a hydraulic switching control circuit (54) which continues outside the handling unit, and at least one connecting member (52) for the at least one valve (50), which connecting member can be moved by a movement of the tilt arm (34), wherein the or each valve (50) opens or closes the hydraulic switching control circuit (54) such that the state of the switching control circuit (54) can be evaluated as position information.

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