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:
May. 26, 2015
Filed:
Feb. 02, 2011
Haavard Aakre, Skien, NO;
Vidar Mathiesen, Porsgrunn, NO;
Bjørnar Werswick, Langesund, NO;
STATOIL PETROLEUM AS, Stavanger, NO;
Abstract
Disclosed herein is an improved method for reversed flow through a self-adjustable (autonomous) valve or flow control device (), comprising the step of providing an overpressure on the side of the valve () opposite of the side of the inlet () exceeding a predetermined biasing force of the resilient member () causing lifting of the inner body part () within the outer body part () against said biasing force from a first position of fluid flow between an inner and an outer side of the valve () via the flow path () and to a second position of reversed fluid flow between said inner and outer side through the second flow path (). An improved self-adjustable (autonomous) valve or flow control device () and use of said improved valve or flow control device are also disclosed.