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:
Mar. 03, 1987
Filed:
Aug. 14, 1984
Roy A Boeker, Humble, TX (US);
Cactus Wellhead Equipment Co., Inc., Houston, TX (US);
Abstract
Methods and apparatus for effecting a fluid-tight seal between a surface of an oil and/or gas well tubing or casing and a wellhead member are provided, wherein the surface has been unprepared to form the seal. The wellhead member is positioned circumferentially about a stub of the tubing or casing. A metal-to-metal fluid-tight sealing means of the wellhead member is positioned adjacent the unprepared surface of the tubing or casing. The sealing means has at least one metallic projection positioned to extend toward the unprepared surface of the tubing or casing. The metallic projection is forced into the unprepared surface of the tubing or casing thus to form a seal therebetween.