Patents Assigned to Sub-Surface Tools, Inc.
  • Patent number: 4361353
    Abstract: The present invention relates to a method and apparatus for retrieving wear bushings of various diameters and configurations with a single retrieving tool. The apparatus comprises an elongated member having first and second ends and having a generally cylindrical outer peripheral portion arranged parallel with a longitudinal axis of the elongated member. A plurality of adjustable members are adapted for engagement with a wear bushing. The plurality of adjustable members is selectively variable in quantity dependent upon the configuration of the wear bushing. Each of the adjustable members is arranged at the cylindrical outer peripheral portion of the elongated member and extends outwardly an adjustable distance along an extension of a radius of the cylindrical portion. In a preferred embodiment, the adjustable members comprise bolts which are adjustably secured in tapped holes arranged in the cylindrical portion of the elongated member.
    Type: Grant
    Filed: August 26, 1980
    Date of Patent: November 30, 1982
    Assignee: Sub-Surface Tools, Inc.
    Inventor: Joe D. Vinson