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:
Jun. 24, 2008
Filed:
Jan. 15, 2003
Per Almdahl, Oslo, NO;
Jeffrey Charles Edwards, Suffolk, GB;
Per Almdahl, Oslo, NO;
Jeffrey Charles Edwards, Suffolk, GB;
Norsk Hydro ASA, Oslo, NO;
Abstract
A riser control device, particularly designed to be used in connection with spool or horizontal production trees () for wells in sub-sea oil and gas installations. Within a housing () of the device is provided, in opposed direction, radially movable pair of rams () for isolating (sealing off) the well and simultaniously, in opposed direction a radially movable pair of shear blades () for cutting off an intervention string or the like. The rams () and blades () are driven by means of a vertically disposed actuator () integrated in the housing (). The actuator may be in the form of a hydralically driven annular piston ()/annular chamber () device, which via piston rods () and translation beams () transforms the movement of the piston () to open or close the rams () and shear blades ().
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile