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. 08, 2025
Filed:
Aug. 12, 2020
Swellfix Uk Limited, Westhill, GB;
Eilidh Jean McKay, Aberdeen, GB;
Duncan Alexander Harper, Alford, GB;
Swellfix UK Limited, Aberdeenshire, GB;
Abstract
A downhole expandable apparatus for restricting ingress of solids in a wellbore comprises a base pipe, a fluid permeable expandable foam material mounted on the base pipe configurable between a non-expanded and an expanded configuration, and a retractable sleeve. The retractable sleeve is moveable between a first configuration in which the retractable sleeve retains the expandable foam material in the non-expanded configuration, and a second configuration in which the retractable sleeve is retracted to provide a free portion of the expandable foam material. The expandable foam material is permitted to radially expand towards the expanded configuration and into engagement with a surface in the wellbore.