Patents Assigned to Studco, Inc.
  • Shaftwall
    Patent number: 4047355
    Abstract: I-beam studs of sheet metal have overlapped shaftwall portions having holes to provide for flow of cooling air along the overlapped portions to prevent failure of the studs from fire. First drywall sheets are mounted in the studs on the shaftwall sides thereof, and second drywall sheets are secured to the studs at the corridor sides thereof.
    Type: Grant
    Filed: May 3, 1976
    Date of Patent: September 13, 1977
    Assignee: Studco, Inc.
    Inventor: William L. Knorr