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:
Dec. 07, 2021
Filed:
Sep. 13, 2018
Applicant:
Welleng Science and Technology Ltd, Banchory, GB;
Inventors:
Peter Barnes Moyes, Banchory, GB;
Stefan Neil Lewis Stewart, Aberdeen, GB;
Assignee:
WELLENG SCIENCE AND TECHNOLOGY LTD., Aberdeenshire, GB;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E21B 34/08 (2006.01); E21B 34/10 (2006.01); F16K 39/06 (2006.01);
U.S. Cl.
CPC ...
E21B 34/08 (2013.01); E21B 34/101 (2013.01); F16K 39/06 (2013.01); E21B 2200/04 (2020.05); E21B 2200/06 (2020.05);
Abstract
A valve apparatus, such as a downhole valve apparatus, includes a housing having a flow path therein and a valve member mounted within the housing and being operable between closed and open configurations to control flow along the flow path. An actuator assembly is moveable from a first position to a second position to sequentially perform first and second actuation functions, the first actuation function being associated with the operation of an auxiliary system, and the second actuation function opening the valve member from its closed configuration.