Patents by Inventor Roy A. Boeker

Roy A. Boeker has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Metal seal for wellhead apparatus
    Patent number: 4646845
    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.
    Type: Grant
    Filed: August 14, 1984
    Date of Patent: March 3, 1987
    Assignee: Cactus Wellhead Equipment Co., Inc.
    Inventor: Roy A. Boeker