Patents Assigned to SWR, Inc.
  • Means for connecting successive sections of tubular elements
    Patent number: 4826220
    Abstract: Pairs of flanges for connecting identical tubular sections in series. The flanges are complementary in form, one being welded to the end of the preceding section, the other welded to the adjacent end of the following section. The flanges include interengaging means for compelling alignment when brought together, limited areas in axial engagement which under the pressure available will enhance electrical continuity, sealing means for preventing passage of gas through the joint and means for holding the flanges together under high pressure.
    Type: Grant
    Filed: April 11, 1988
    Date of Patent: May 2, 1989
    Assignee: SWR, Inc.
    Inventor: Douglas A. Ross