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:
Sep. 04, 2018

Filed:

Oct. 07, 2014
Applicant:

Expro North Sea Limited, Dyce, Aberdeenshire, GB;

Inventors:

Paul Deacon, Aberdeen, GB;

John Sangster, Aberdeen, GB;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
E21B 34/02 (2006.01); E21B 33/076 (2006.01); E21B 33/038 (2006.01); E21B 34/00 (2006.01);
U.S. Cl.
CPC ...
E21B 34/02 (2013.01); E21B 33/038 (2013.01); E21B 33/076 (2013.01); E21B 2034/002 (2013.01);
Abstract

A ball valve apparatus includes a housing defining a housing inlet and a housing outlet and a valve cartridge mounted within the housing and defining a cartridge flow path extending between a cartridge inlet and a cartridge outlet, wherein the cartridge inlet is arranged in fluid communication with the housing inlet and the cartridge outlet is arranged in fluid communication with the housing outlet. A ball valve member is mounted within the valve cartridge and is rotatable to selectively open and close the cartridge flow path. A leak chamber is defined between the housing and the cartridge for containing fluid leakage from the valve cartridge.


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