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.

Date of Patent:
Feb. 23, 1988

Filed:

Aug. 17, 1987
Applicant:
Inventor:

Sidney K Smith, Jr, Huntsville, TX (US);

Assignee:

Hughes Tool Company, Houston, TX (US);

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
E21B / ;
U.S. Cl.
CPC ...
166387 ; 166208 ; 166217 ; 166382 ; 285140 ;
Abstract

A combination landing unit and seal assembly is shown for engaging and sealing within the internal bore of the liner within a well. A special latch mechanism carried on the seal assembly includes an externally threaded latch collet which can be stabbed into the setting sleeve threads which are normally provided in the interior of the liner for use with the running tool which installs the liner in the well bore. An integral seal assembly is carried in the assembly in an upward extension of the landing unit and floats within a tubular extension of the landing unit. A plug can be installed in the landing unit to allow the seal assembly to be retrieved to the well surface without killing the well.


Find Patent Forward Citations

Smith, Jr, Sidney. (1988). Combination landing unit and seal assembly (U.S. Patent No. 4726425). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4726425

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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