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:
Jul. 29, 1986
Filed:
Jun. 29, 1984
Applicant:
Inventor:
John R Setterberg, Richardson, TX (US);
Assignee:
Otis Engineering Corporation, Dallas, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16J / ;
U.S. Cl.
CPC ...
277236 ; 277 30 ; 277125 ; 277171 ; 166 88 ;
Abstract
A system and apparatus useful in establishing a metal to metal seal between members in wells. A milling tool is used to cut and/or finish a seat on a shoulder in pipe or tools in the well, which will mate and seal with metal seal surfaces on seal units lowered into the well. One seal unit has elastomeric seals in addition to the metal seals.