Patents Assigned to Advanced Structures, Inc.
  • Pressure vessels and end closures therefor
    Patent number: 5720411
    Abstract: Pressure vessels having end closures for sealing at least one open end are constructed so as to provide full-bore access to a generally tubular shell portion wherein one or more filter cartridges will be disposed. A sealing ring of rectangular cross section is seated in a groove provided in the tubular shell at a location axially inward of a cylindrical surface region wherein a central annular groove is provided. A closure head fits within this annular surface and includes a shoulder which prevents insertion past the sealing ring.
    Type: Grant
    Filed: March 20, 1996
    Date of Patent: February 24, 1998
    Assignee: Advanced Structures, Inc.
    Inventors: C. Peter Darby, Douglas Eisberg, Terry Gilbertson