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:
Jul. 09, 2019

Filed:

Aug. 16, 2012
Applicants:

Haakon Jostein Grimstad, Bergen, NO;

Arne Veland, Bergen, NO;

Inventors:

Haakon Jostein Grimstad, Bergen, NO;

Arne Veland, Bergen, NO;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F17D 1/20 (2006.01); E21B 21/10 (2006.01); E21B 33/035 (2006.01); G05D 16/20 (2006.01);
U.S. Cl.
CPC ...
F17D 1/20 (2013.01); E21B 21/10 (2013.01); E21B 33/0355 (2013.01); G05D 16/20 (2013.01); G05D 16/2033 (2013.01); Y10T 137/0396 (2015.04); Y10T 137/2605 (2015.04);
Abstract

A method of controlling fluid pressure in a closed system including using a pressure regulating unit connected to the system, the unit including a first conduit fluidly connecting the closed system to an external system. A first regulating valve is interposed between the external system and one end of the conduit and a second regulating valve interposed between the closed system and the other end of the conduit. The method further includes: a) opening one of the first or second regulating valves; b) closing said one regulating valve; c) opening the other regulating valve; d) closing the other regulating valve; and e) repeating steps a) to d) in turn until the desired fluid pressure is achieved in the system.


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