US 11,933,042 B2
Mechanically fastened firestop flute plug
Donald Anthony Pilz, Livermore, CA (US)
Assigned to CEMCO, LLC, City of Industry, CA (US)
Filed by CEMCO, LLC, City of Industry, CA (US)
Filed on Nov. 1, 2021, as Appl. No. 17/453,158.
Application 17/453,158 is a continuation of application No. 16/398,144, filed on Apr. 29, 2019, granted, now 11,162,259.
Claims priority of provisional application 62/664,832, filed on Apr. 30, 2018.
Prior Publication US 2022/0162851 A1, May 26, 2022
This patent is subject to a terminal disclaimer.
Int. Cl. E04B 1/94 (2006.01); A62C 2/06 (2006.01)
CPC E04B 1/948 (2013.01) [A62C 2/06 (2013.01); E04B 1/941 (2013.01)] 17 Claims
OG exemplary drawing
 
1. A head-of-wall assembly comprising:
a fluted pan deck comprising a plurality of flutes aligned along a first direction, a flute of the plurality of flutes defining a concave perimeter and a flute void;
a header track coupled to the fluted pan deck and aligned along a second direction, the second direction being transverse to the first direction, the header track comprising:
a first vertical leg;
a second vertical leg; and
a web extending between the first and second vertical legs and coupling the first and second vertical legs;
a plurality of studs configured to be positioned within and couple with the header track;
at least one wallboard coupled to the plurality of studs; and
a flute plug assembly, comprising:
a frame comprising a first vertical upper flange, a first intermediate horizontal flange connected to the first vertical flange, a first lower vertical flange connected to the first intermediate horizontal flange, a second lower vertical flange connected to the first lower vertical flange, a second intermediate horizontal flange connected to the second lower vertical flange, and a second vertical upper flange connected to the second intermediate horizontal flange such that the first vertical upper flange and the second vertical upper flange are substantially parallel;
a fire blocking material coupled between the vertical upper flanges;
wherein the flute plug assembly contacts the header track and is aligned with the flute void such that the fire blocking material is disposed within the flute void, and one of the vertical lower flanges is aligned along and coupled to the first vertical leg of the header track; and
wherein the fire blocking material contacts the concave perimeter of the flute to limit a passage of one or more of fire, smoke, and sound in the flute void.