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:
Nov. 27, 2012
Filed:
Apr. 09, 2008
Claudio Cicognani, Cesena, IT;
Claudio Cicognani, Cesena, IT;
Drillmec S.p.A., Gariga di Podenzano (PC), IT;
Abstract
A Rig () for drilling or maintaining oil wells includes a base structure () which is provided with a support platform () on the ground and a raised work platform (). A deck () is co-planar to and integral with the support platform () and is suitable for housing a trailer (). A telescopic antenna () is provided with two fixing eyelets () which are arranged at the lower end of the telescopic antenna () in order to be hinged to the work platform (). A lifting device () is suitable for lifting the telescopic antenna () from a transport position, in which it reposes on a transporter () with the two fixing eyelets () at a lower level than the level of the work platform (), to a working position, in which it is vertically arranged on the work platform () with the fixing eyelets () hinged to the work platform (). The lifting device () is provided with a moving articulated parallelogram structure provided with at least two rocker arms () hinged to the telescopic antenna () and which are hingeable to the deck (), and with at least one linear actuator () with a variable thrust head which may be interposed between the telescopic antenna () and the deck () to activate the moving structure (') and lift the telescopic antenna ().