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:
Sep. 03, 2002
Filed:
Apr. 11, 2000
Applicant:
Inventor:
Manfred Jansch, Garbsen, DE;
Assignee:
Weatherford/Lamb, Inc., Houston, TX (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
E21B 3/310 ;
U.S. Cl.
CPC ...
E21B 3/310 ;
Abstract
A packer comprises an elastomeric member ( ) which, in use, will deform radially when subjected to axial pressure. A plurality of steel fingers ( ) are vulcanized onto the elastomeric member ( ). One end of each steel finger ( ) is accomodated in a recess in a bearing ring ( ). The cross section of the fingers ( ) is generally wedge-shaped so that, when axial pressure is applied to the elastomeric member ( ), the fingers ( ) pivot outwardly yet completely circumscribe the sealing member ( ). The packer is particularly useful for applications where the packer must pass through a relatively narrow opening yet seal a relatively wide tubular.