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. 05, 1992
Filed:
Nov. 12, 1990
Rustom K Mody, Houston, TX (US);
Vel Berzin, Houston, TX (US);
Randle E Ford, Kingwood, TX (US);
James C Burtner, III, Spring, TX (US);
Baker Hughes Incorporated, Houston, TX (US);
Abstract
An inflatable packing tool is provided for use in a subterranean wellbore. The inflatable packing tool is coupled to a wellbore conduit with a central bore which directs pressurized fluid into the wellbore. The inflatable packing tool includes a central tubular body for directing fluid in the wellbore. Upper and lower stationary collar members are secured to the central tubular body for coupling the central tubular body to the wellbore conduit. An annular inflatable packing element surrounds the central tubular body, and includes a flexible fluid-tight sleeve covered by a plurality of overlapping an axially extending reinforcing ribs. A slidable sleeve assembly is coupled to one end of the annular inflatable packing element. A locking means is provided for fixing the position of the slidable sleeve assembly during a deflated running mode to prevent axial movement of the slidable sleeve assembly relative to the central tubular body, rotational movement of the slidable sleeve assembly relative to the central tubular body, and twisting of the plurality of overlapping and axially extending reinforcing ribs out of axial alignment with the central longitudinal axis of the central tubular body.