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:
Aug. 30, 1988
Filed:
May. 07, 1987
Jerry D Smith, Houston, TX (US);
Edward J Szymczak, Spring, TX (US);
Cameron Iron Works USA, Inc., Houston, TX (US);
Abstract
An improved annular seal and hanger which are to be installed in a wellhead housing. The annular seal assembly includes seal ring having a central body with upper outer rim, upper inner rim, lower outer rim and lower inner rim extending from said central body, an upper wedge ring, a lower wedge ring and means connecting said rings to allow setting movement thereof, means releasably securing said assembled rings to the hanger for running into the wellhead housing, each of said rims including an outer sealing lip, the outer sealing lips having a free diameter less than the diameter of the lower wedge ring so that the sealing lips are protected during running of the hanger into the wellhead housing and means for moving said wedge rings into the space between the rims of said seal ring for urging the sealing lips into sealing engagement with the interior sealing surface of said housing.