Patents Assigned to Otid Engineering Corporation
  • Latch for use in a well
    Patent number: 4438811
    Abstract: A packer utilizing a C-slip in which, during release of the packer, the upper expander pulls the C-slip off of the lower expander. If a packer is stuck in the well, the upper expander is keyed to the slip to prevent rotation of the upper expander during milling. A latch for releasing the packer may be operated mechanically or hydraulically and the latch is protected against sand.
    Type: Grant
    Filed: August 16, 1982
    Date of Patent: March 27, 1984
    Assignee: Otid Engineering Corporation
    Inventor: Dhirajlal C. Patel