The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 23, 2002
Filed:
Apr. 25, 2000
Applicant:
Inventor:
Manfred Jansch, Garbsen, DE;
Assignee:
Weatherford/Lamb, Inc., Houston, TX (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
E21B 4/310 ;
U.S. Cl.
CPC ...
E21B 4/310 ;
Abstract
An apparatus for retaining two strings of tubulars characterised in that the apparatus comprises body parts ( ) of a device for retaining a single string of tubulars and a converting member ( ). A device for retaining a string of tubulars the device comprising at least one body part ( ) having a curved tapered surface ( ) upon which inserts are located for engagement with the string of tubulars characterised in that the curved tapered surface comprises a recess for the passage of cables.