# US 2019/0316348 A1 · Fire-rated wall and ceiling system

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- Number: US 2019/0316348 A1
- Document ID: US20190316348A1
- Status: Published application
- Kind: A1
- Application number: 16/253,653
- Filed: 2019-01-22
- Published: 2019-10-17
- Earliest claimed: 2007-08-22
- Assignees: California Expanded Metal Products Company
- Applicants: California Expanded Metal Products Company
- Inventors: Donald Anthony Pilz; Raymond Edward Poliquin; Fernando Hernandez Sesma
- Web page: https://patentgrep.com/patent/US20190316348A1

## CPC

- E04B 1/944: {covered with fire-proofing material}
- E04B 1/24: the supporting parts consisting of metal
- E04B 1/947: {by closing openings in walls or the like in the case of fire (fire-proof doors E06B5/16)}
- E04B 1/948: {Fire-proof sealings or joints (for doors or windows E06B5/164)}
- E04B 2/58: with elongated members of metal
- E04B 2/60: characterised by special cross-section of the elongated members
- E04B 2/7411: {Details for fire protection}
- E04B 2/76: with framework or posts of metal {(details of connections, thresholds or skirtings E04B2/82)}
- E04B 2/82: characterised by the manner in which edges are connected to the building; Means therefor; Special details of easily-removable partitions {as far as related to the connection with other parts of the building}
- E04B 9/008: {with means for connecting partition walls or panels to the ceilings}
- E04C 3/04: of metal (E04C3/29 takes precedence; as reinforcing elements E04C5/06; manufacture B21)
- E04C 3/29: built-up from parts of different material, {i.e. composite structures}
- E04C 3/32: of metal (E04C3/36 takes precedence)
- E04B 1/94: against fire ({fire protection of partitions E04B2/7403, E04B2/7409; supporting constructions for ceilings having the capability of expansion in case of fire E04B9/08}; fire-fighting A62C, {e.g. fire prevention or containment A62C2/00}; impregnation of wood or similar materials B27K; {fireproof paints C09D5/18; fireproofing materials C09K21/00; flame-resistant papers D21H5/0002; coverings or linings, e.g. for walls or ceilings, in general E04F13/00}; fireproof doors E06B5/16; {firebreak devices for pipes or the like passing through walls F16L5/04; protection of pipes by means of non-inflammable material F16L57/04})
- E04B 2103/06: of metal
- E04C 2003/0404: {beams, girders, or joists characterised by cross-sectional aspects}
- E04C 2003/0434: {the open cross-section free of enclosed cavities}
- E04C 2003/0439: {the cross-section comprising open parts and hollow parts}
- E04C 2003/0473: {U- or C-shaped}
- E04B: GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS (border constructions of opening in walls, floors or ceilings E06B1/00; {electromagnetic shielding H05K9/0001})
- E04C: STRUCTURAL ELEMENTS; BUILDING MATERIALS (for bridges E01D; specially designed for insulation or other protection E04B; elements used as building aids E04G; for mining E21; for tunnels E21D; structural elements with broader range of application than for building engineering F16, particularly F16S)

## Abstract

The present application is directed toward fire-rated wall construction components and wall systems for use in building construction. Embodiments can include tracks for holding studs which incorporate various geometries capable of receiving fire-retardant material, flat straps for use between tracks and fluted wall components, fire sponges for use in fluted wall components, and tracks with protruding grooves or other structures which prevent unwanted air movement between a wallboard component and the track.

## Claims

### Claim 1

A fire-rated stud framing wall and ceiling system, comprising:
a bottom track comprising a web, a first flange and a second flange, the first and second flanges extending in an upward direction from opposing side edges of the web, the bottom track defining an interior space between the web and the inwardly-facing surfaces of the first and second flanges;
a plurality of studs that are spaced from one another along the bottom track, each of the plurality of studs having a bottom end received within the interior space of the bottom track, each of the plurality of studs extending in a generally vertical direction from the bottom track;
a top track comprising a web, a first flange and a second flange, the first and second flanges extending in a downward direction from opposing side edges of the web, the top track defining an interior space between the web and the inwardly-facing surfaces of the first and second flanges, wherein upper ends of each of the plurality of studs are received within the interior space of the top track, further comprising at least one fire-retardant material strip extending along a length of the top track, the at least one fire-retardant material strip positioned on a portion of the web and at least one of the first and second flanges, the at least one fire-retardant material strip having at least a first surface facing the top track and a second surface; and
a ceiling;
wherein the top track is secured to the ceiling and the at least one fire-retardant material strip is located on the top track such that at least a portion of the second surface of the at least one fire-retardant material strip contacts the ceiling, and
wherein the portion of the second surface defines a width that is less than the width of the web of the top track.