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.

Date of Patent:
Aug. 04, 2015

Filed:

Oct. 22, 2010
Applicants:

Jorgen Eide, Fana, NO;

Anders Brunvold, Blomsterdalen, NO;

Arne Veland, Bergen, NO;

Inventors:

Jorgen Eide, Fana, NO;

Anders Brunvold, Blomsterdalen, NO;

Arne Veland, Bergen, NO;

Assignee:

Framo Engineering AS, Bergen, NO;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F16K 17/36 (2006.01); F15B 1/24 (2006.01); E21B 33/035 (2006.01); F15B 1/02 (2006.01);
U.S. Cl.
CPC ...
F15B 1/24 (2013.01); E21B 33/0355 (2013.01); F15B 1/024 (2013.01);
Abstract

A system to pressurize barrier fluid of a submersible installation to provide a differential pressure between the ambient pressure surrounding the submersible installation and the pressure of the barrier fluid internally in the submersible installation during submersion of the system, wherein the differential pressure fits within a predetermined differential pressure range. The system comprises a pre-charge arrangement and a pressure intensifier which is adapted to start working at a start-up pressure. The pre-charge arrangement is adapted, during submerging of the system, to provide a differential pressure within the predetermined differential pressure range until the ambient pressure equals the start up pressure of the pressure intensifier, while the pressure intensifier is adapted to provide a differential pressure within the predetermined differential pressure range when the ambient pressure equals the start-up pressure of the pressure intensifier during further submersion of the system.


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