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:
Oct. 07, 2025
Filed:
Jan. 30, 2024
Halliburton Energy Services, Inc., Houston, TX (US);
Ibrahim El Mallawany, Al-Khobar, SA;
Halliburton Energy Services, Inc., Houston, TX (US);
Abstract
Disclosed embodiments relate to electric safety valves for a well, which may be configured to close in the event of a power loss for example. In embodiments, the electric safety valve may include an electro-magnetic tooth brake system. For example, a plurality of teeth may be coupled to a translating sleeve disposed within an outer housing, a pinion may be mounted within the outer housing and configured to mesh with the plurality of teeth, and an electric tooth brake may have brake teeth configured to engage the pinion upon activation of an electro-magnet. Thus, when the electro-magnet is powered and the teeth are engaged/meshing, the translating sleeve may be held in position to hold open the valve. A loss of power may disengage the teeth, releasing the translating sleeve and allowing the valve to close. Related methods and systems are also disclosed.