04047355 is referenced by 81 patents and cites 12 patents.

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.

Title
Shaftwall
Application Number
5/682330
Publication Number
4047355
Application Date
May 3, 1976
Publication Date
September 13, 1977
Inventor
William L Knorr
Salem
OR, US
Agent
Klarquist Sparkman Campbell Leigh Hall & Whinston
Assignee
Studco
OR, US
IPC
E04C 3/07
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