Patents Assigned to Dresser Oil Tools Division of Dresser Industries, Inc.
  • Side intake valve assembly
    Patent number: 5899270
    Abstract: A side intake valve assembly for use in a subterranean well in conjunction with a second or lower valve assembly, and a hollow connecting body for connecting the side intake valve assembly and the second or lower valve assembly. The side intake valve assembly allows water separated from the production fluid to be forced downwardly through the intake valve assembly and the second or lower valve assembly into a water disposal zone. A one-way valve in the side intake valve assembly is a gravity operated ball valve.
    Type: Grant
    Filed: April 10, 1997
    Date of Patent: May 4, 1999
    Assignee: Dresser Oil Tools Division of Dresser Industries, Inc.
    Inventor: Brock W. Watson