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:
Feb. 16, 1982
Filed:
Aug. 10, 1979
Applicant:
Inventors:
Thomas J Luers, Duncan, OK (US);
Richard L Giroux, Duncan, OK (US);
Assignee:
Halliburton Company, Duncan, OK (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
E21B / ;
U.S. Cl.
CPC ...
166202 ; 2772 / ;
Abstract
A seal system for a wellhead isolation tool diffuser utilizing elastomeric cup-shaped seals installed on the exterior of the diffuser, which is inserted into the production tubing at the wellhead. After insertion of the diffuser, the production tubing is pressurized, and the seals are set against the interior of the production tubing by the pressure in the well, effecting a tight seal.