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:
Apr. 05, 1994
Filed:
Aug. 07, 1992
Cezar A Paulo, Rio de Janeiro, BR;
Jose Eduardo Silva, Rio de Janeiro, BR;
Petroleo Brasileiro S.A.-Petrobras, Rio de Janeiro, BR;
Abstract
This invention refers to a wet Christmas tree (20) utilized particularly in subsea production systems, including at the bottom a connector (22) for purposes of locking to the wellhead, a guide structure (24) consisting of a central ring attached to said connector (22), supporting arms (26) and guide funnels (28), a valve block (30), a reentry mandrel (32), gate-type lateral valves (46, 48, 50, 52) with metal/metal sealing and hydraulic driving with spring-type return flow lines with loops (54, 56, 58) and piping for the crossover line, hydraulically adjustable chokes (60, 62), a flow line terminal (36), a reentry pole (42) and a control system.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile