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:
Nov. 09, 2021
Filed:
Dec. 03, 2018
Halliburton Energy Services, Inc., Houston, TX (US);
Shaun Wen Jie Ng, Singapore, SG;
Bruce Edward Scott, McKinney, TX (US);
Halliburton Energy Services, Inc., Houston, TX (US);
Abstract
A well safety valve, comprising: a first sub assembly, wherein the first sub assembly comprises: an outer housing having a central bore extending axially through the outer housing, wherein the outer housing comprises an outer wall having a receptacle formed in the outer wall; a piston disposed in the receptacle; a rod, wherein the rod is disposed at an end of the piston, wherein a first magnetic sleeve is disposed around the rod; a flow tube disposed in the central bore of the outer housing, wherein the flow tube comprises a second magnetic sleeve on an exterior surface of the flow tube; and a valve member disposed in the outer housing; and one or more magnetic sensors disposed in the outer housing between the first magnetic sleeve and the second magnetic sleeve; and a second sub assembly, wherein the second sub assembly is coupled to the first sub assembly.