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. 13, 2008
Filed:
Jul. 29, 2004
Applicants:
Neil Andrew Abercrombie Simpson, Aberdeen, GB;
Alexander Craig Mackay, Aberdeen, GB;
Robert Cowman, Perth, GB;
Inventors:
Neil Andrew Abercrombie Simpson, Aberdeen, GB;
Alexander Craig Mackay, Aberdeen, GB;
Robert Cowman, Perth, GB;
Assignee:
Weatherford/Lamb, Inc., Houston, TX (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F16L 17/73 (2006.01); E21B 29/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
A seal arrangement comprises an expandable inner tubular and an outer tubular. The inner tubular comprises an axially extending lip seal. Expansion of the inner tubular serves to energise the lip seal, a free end of which will be urged into contact with the outer tubular.