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. 17, 2012
Filed:
Aug. 28, 2006
François Millet, Antony, FR;
Joseph Girardi, Cormeilles en Parisis, FR;
Christophe Michaud, Soignolles en Brie, FR;
François Millet, Antony, FR;
Joseph Girardi, Cormeilles en Parisis, FR;
Christophe Michaud, Soignolles en Brie, FR;
Geoservices Equipements, Leblanc-Mesnil, FR;
Abstract
The invention relates to a safety device for an oil well and to the associated safety installation. The inventive device comprises a valve housing () which defines a fluid flow passage (). The aforementioned housing () comprises a valve () which is used to seal the passage and which can move between an open position and a closed position and means for permanently biasing the valve towards the closed position thereof. The housing () also comprises releasable means () for connecting same to a working line with tubing that is intended to move the housing () in the conduit. In addition, the device comprises retractable means () for supporting the valve () in the open position and hydraulic means () for actuating the support means () in order to activate same upon reception of a valve open control signal. The aforementioned support means () and actuation means () are solidly connected to the housing () such that they can be moved simultaneously under the control of the line.