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:
Jul. 18, 2017
Filed:
May. 05, 2015
Weatherford Technology Holdings, Llc, Houston, TX (US);
Mike A. Luke, Houston, TX (US);
Weatherford Technology Holdings, LLC, Houston, TX (US);
Abstract
A downhole device shifts a component from a first state to a second state. The device includes a body having the component in a bore thereof and an annular space formed within an inner and outer wall of the body. The annular space includes a first fluid chamber in fluid communication with the bore at a first location and with a pressure transducer at a second location, the transducer constructed and arranged to measure pressure of the fluid and provide a signal to circuitry controlling a valve upon reception of a predetermined fluid pressure pulse sequence. When the pulse sequence is delivered, the valve opens, placing a source of pressurized fluid in communication with an actuator that shifts the valve.