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:
Jan. 21, 2020

Filed:

Mar. 17, 2014
Applicant:

Tco As, Indre Arna, NO;

Inventor:

Keith Woodford, Aberdeen, GB;

Assignee:

TCO AS, Indre Arna, NO;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E21B 34/10 (2006.01); E21B 34/08 (2006.01); E21B 37/06 (2006.01); E21B 43/12 (2006.01); E21B 43/20 (2006.01); E21B 34/00 (2006.01);
U.S. Cl.
CPC ...
E21B 34/10 (2013.01); E21B 34/08 (2013.01); E21B 34/101 (2013.01); E21B 37/06 (2013.01); E21B 43/121 (2013.01); E21B 43/20 (2013.01); E21B 2034/002 (2013.01); E21B 2034/005 (2013.01);
Abstract

A flow system comprises a system flow path extending from a system inlet to a system outlet. A pressure module is provided within the system flow path to establish a differential pressure between upstream and downstream sides thereof during flow from the system inlet to the system outlet The system also comprises a valve provided within the system flow path, and a valve actuator in pressure communication with the system flow path on upstream and downstream sides of the pressure module. The valve actuator is driven by a differential pressure established by the pressure module to move between a first position in which the valve is closed, and a second position in which the valve is opened.


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