Patents Assigned to Emma Dee Gray
  • Patent number: 6227587
    Abstract: A combined well casing spider and elevator has a body defining a bowl inner wall tapered to reduced diameter from the top to bottom end and defining first external guide surfaces being inclined upwardly and outwardly and having a kicker element defining a second coextensive external guide surface being inclined upwardly and outwardly to a greater extent than the first external guide surface. A gate member is pivoted to the body for movement of a well casing to and from the bowl. A circumferential array of casing gripping slips is located within the bowl and form a circular hole to receive a well casing. The slips are vertically movable along the bowl inner wall to effect radial enlargement and contraction of the circular hole to release and grip the casing.
    Type: Grant
    Filed: February 7, 2000
    Date of Patent: May 8, 2001
    Assignee: Emma Dee Gray
    Inventor: Ben D. Terral