Patent · US Expired

Arrangement in a pipe handling system

US5437527A · kind A · utility

15Cited by

11References

3Claims

0Family size

Assignee

Hitech A/S · NO

Inventors

John McGill · Duncanville, US
Bjorn Eilertsen · Sola, NO

Key dates

Filing date	Jun 21, 1993
Grant date	Aug 1, 1995
Priority date	—
Expiry date	Jun 21, 2013

Classification

Technology area (CPC E)Fixed Constructions
CPC primaryE21B19/14
WIPO fieldCivil engineering
WIPO sectorOther fields

Abstract

The invention relates to an arrangement in a pipe handling system, especially for handling pipes (4P) in connection with a derrick 1A, wherein the arrangement comprises a tower (1) and two preferably individually controlled operating arms (2a, 2b). The pipe handling system operates favorably in connection with a finger board (4) in which all fingers (4a, 4n) are pointing towards the center of the pipe handling system and especially towards a disc-shaped locking unit (4R) mounted on the top of the tower (1), and in connection with a side-step retraction system designed for use with a top drive drilling system.

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