Two-piece track system
AssigneeCalifornia Expanded Metal Products Company
InventorsDonald A. Pilz, Raymond E. Poliquin, Fernando Hernandez Sesma
Life of this patent
Estimating the term…
Abstract
A fire-rated receiver channel includes at least one intumescent or other fire-resistant material strip. The receiver channel can nest with a framing member, such as metal tracks, headers, header tracks, sill plates, bottom tracks, metal studs, wood studs or wall partitions, and placed at a perimeter of a wall assembly to create a fire block arrangement. In other arrangements, a track assembly includes two nested tracks, an inner track and outer track. The assembly is designed so that the outside width of the outer track is equal to or less than the outside width of the inner track to present a substantially flush external surface for attachment of exterior sheathing elements when the assembly is used in an external wall.
Claims11
A two-piece fire-rated track assembly for a linear wall gap, comprising:
- a first track that has a web, a first flange and a second flange, wherein the web is substantially planar and has a first side edge and a second side edge, the first flange and the second flange extend in the same direction from the first and second side edges, respectively, wherein each of the first and second flanges is substantially planar such that the first track defines a substantially U-shaped cross section having a maximum external width dimension;
- a second track that has a web, a first flange and a second flange, wherein the web is substantially planar and has a first side edge and a second side edge, the first flange and the second flange extend in the same direction from the first and second side edges, respectively, wherein each of the first and second flanges is substantially planar such that the second track defines a substantially U-shaped cross section, each of the first and second flanges has a free end opposite a respective one of the first side edge and second side edge, wherein the first and second flanges of the second track define a minimum internal width that is greater than the maximum external width dimension of the first track;
- at least one heat-expandable intumescent strip attached to the second track and extending lengthwise along a surface of the second track;
- wherein, in use, the first track and the second track are aligned with one another in the same direction and the first track is nested within the second track.
Dependencies are inferred from the claim text.