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:
Apr. 02, 2019
Filed:
Mar. 05, 2014
Applicant:
Managed Pressure Operations Pte. Ltd., Singapore, SG;
Inventors:
Alexander John MacGregor, Kirkcudbright, GB;
Christian Leuchtenberg, Singapore, SG;
James Bisset, Dubai, AE;
Assignee:
MANAGED PRESSURE OPERATIONS PTE, LTD., Singapore, SG;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E21B 21/00 (2006.01); E21B 37/08 (2006.01); E21B 21/10 (2006.01); E21B 34/08 (2006.01); E21B 19/16 (2006.01);
U.S. Cl.
CPC ...
E21B 21/106 (2013.01); E21B 19/16 (2013.01); E21B 21/103 (2013.01); E21B 34/08 (2013.01);
Abstract
A valve assembly for use controlling flow of fluid into a drill pipe, the valve assembly having a valve body, a valve member and a valve seat, wherein a) the valve body has a main passage b) the valve member is movable between a closed position in which the valve member engages with a seat face of the valve seat to substantially prevent flow of fluid along the main passage, and an open position in which the valve member is spaced from the seat face, c) the valve seat is a separate part to the valve body.