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. 28, 1999
Filed:
Oct. 07, 1997
Thomas R Bailey, Houston, TX (US);
Ralph D Wright, Aberdeen, GB;
David M Haugen, League City, TX (US);
Michael T Smalley, Cypress, TX (US);
Frederick T Tilton, Spring, TX (US);
Weatherford/Lamb, Inc., Houston, TX (US);
Abstract
A stroke indicator has been invented for indicating that a movable inner member of an hydraulically activated wellbore tool or apparatus has moved, particularly that movement of such a member indicating that a stroke of the tool or apparatus has occurred. In one aspect such an indicator is used to indicate that the stroke of a wellbore tubular patch expander system has been completed. A tubular patch has been invented which includes two or more connected tubular patch members. A tubular patch system has been invented for patching operations which, in one aspect, is useful as a 'through tubing' tubular patch system and has a body and a series of selectively expandable members which, once having passed through a tubular of a first diameter, are expandable in a tubular of a second diameter larger than the first diameter and then operable to expand a liner patch to seal a leak in the tubular of the second diameter. Such a system may be used in a tubular disposed within a wellbore or in a tubular on the earth surface.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile