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:
Jun. 08, 2010
Filed:
May. 26, 2005
John R. Abarca, Houston, TX (US);
Shawn E. Nowlin, Conroe, TX (US);
Dorothy L. Nowlin, Legal Representative, Conroe, TX (US);
John R. Abarca, Houston, TX (US);
Shawn E. Nowlin, Conroe, TX (US);
Dorothy L. Nowlin, legal representative, Conroe, TX (US);
Baker Hughes Incorporated, Houston, TX (US);
Abstract
An expandable downhole tool features a mandrel that is expanded from within by a swage or other technique. The expansion of the mandrel advances an exterior ring or comparable slidably mounted object against an exterior sleeve that can be impervious or porous. The ring engages a ratchet mechanism to hold its position with respect to the mandrel as the swage advances through the mandrel and expands the ring and the exterior sleeve. The locking of the ring to the mandrel keeps the exterior sleeve from springing back longitudinally as the expansion is concluded.