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:
May. 20, 2014
Filed:
Feb. 05, 2009
Applicants:
Paul Schilte, Rijswijk, NL;
John Dewar, Edinburgh, GB;
Arie Vliegenthart, Maassluis, NL;
Inventors:
Assignee:
Swellfix B.V., Rijswijk, NL;
Primary Examiner:
Int. Cl.
CPC ...
E21B 33/128 (2006.01);
U.S. Cl.
CPC ...
Abstract
An expandable downhole seal includes a sealing portion and a deflecting portion adapted to move axially relative to each other to effect radial displacement of the sealing portion, wherein at least one of the sealing portion and the deflecting portion includes a swelling material. In use, radial expansion of the downhole seal may be achieved by the radial displacement of the sealing portion in combination with swelling of the swellable material. A support member is provided to support the sealing portion and deflecting portion.