# US 10,246,871 B2 · Fire-rated joint system > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 10,246,871 B2 - Document ID: US10246871B2 - Status: Granted - Kind: B2 - Application number: 16/112,118 - Filed: 2018-08-24 - Published: 2018-12-20 - Granted: 2019-04-02 - Earliest claimed: 2012-01-20 - Assignees: California Expanded Metal Products Company - Applicants: California Expanded Metal Products Company - Inventors: Donald Anthony Pilz - Web page: https://patentgrep.com/patent/US10246871B2 ## CPC - E04B 1/948: {Fire-proof sealings or joints (for doors or windows E06B5/164)} - E04B 1/6801: {Fillings therefor} - E04B 2/7411: {Details for fire protection} - E04B 2/7457: {with wallboards attached to the outer faces of the posts, parallel to the partition (E04B2/7459 takes precedence)} - E04B 2002/7481: {Locating rails with adjustable curvature} - 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}) ## Abstract A fire-rated angle piece and wall assemblies or other assemblies that incorporate the fire-rated angle piece, in which the angle piece can include an intumescent or other fire-resistant material strip. The angle can be attached adjacent to a corner of a framing member, such as metal tracks, headers, header tracks, sill plates, bottom tracks, metal studs, wood studs or wall partitions, and placed between the framing member and a wall board member at a perimeter of a wall assembly to create a fire block arrangement. A fire spray material can be applied over a portion of the angle piece. ## Claims ### Claim 1 A fire-rated assembly for sealing a linear wall gap along an overhead structure, the fire-rated assembly 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 attached to the overhead structure, the 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; an angle piece comprising a first flange and a second flange, the second flange oriented at an angle relative to the first flange, the first flange and the second flange being connected to one another along an edge thereby defining a corner, the first flange extending in a direction parallel with the overhead structure; the first and second flanges being formed from a non-metal material; a heat-expandable intumescent strip attached to at least one of the first and second flanges of the angle piece, the heat-expandable intumescent strip having an activation temperature that is lower than a melting temperature of the non-metal material; and a gasket attached to the first flange of the angle piece, wherein the gasket contacts the overhead structure to seal the linear wall gap. ### Claim 2 (depends on 1) The fire-rated assembly of claim 1, further comprising a plurality of heat-expandable intumescent strips attached to at least one of the first and second flanges of the angle piece. ### Claim 3 (depends on 1) The fire-rated assembly of claim 1, wherein the non-metal material is comprised of polyvinyl chloride (PVC). ### Claim 4 (depends on 1) The fire-rated assembly of claim 1, wherein the non-metal material has a melting temperature of at least 400 degrees Fahrenheit. ### Claim 5 (depends on 1) The fire-rated assembly of claim 1, wherein a length of the first flange is shorter than a length of the second flange. ### Claim 6 (depends on 1) The fire-rated assembly of claim 1, wherein the gasket and the angle piece are formed by a co-extrusion process. ### Claim 7 (depends on 1) The fire-rated assembly of claim 1, wherein the gasket is attached to both the first and second flanges of the angle piece. ### Claim 8 (depends on 1) The fire-rated assembly of claim 1, further comprising at least one wallboard member extending in the generally vertical direction and coupled to at least one of the plurality of studs, wherein the second flange of the angle piece contacts the wallboard. ### Claim 9 A fire-rated wall joint product for sealing a linear wall gap along an overhead structure, the fire-rated wall joint product comprising: an angle piece comprising a first flange and a second flange, the second flange oriented at an angle relative to the first flange, the first flange and the second flange being connected to one another along an edge thereby defining a corner, the first flange extending in a direction parallel with the overhead structure; the first and second flanges being formed from a non-metal material; a heat-expandable intumescent strip attached to at least one of the first and second flanges of the angle piece, the heat-expandable intumescent strip having an activation temperature that is lower than a melting temperature of the non-metal material; and a gasket attached to the first flange of the angle piece. ### Claim 10 (depends on 9) The fire-rated wall joint product of claim 9, further comprising a plurality of heat-expandable intumescent strips attached to at least one of the first and second flanges of the angle piece. ### Claim 11 (depends on 9) The fire-rated wall joint product of claim 9, wherein the non-metal material is comprised of polyvinyl chloride (PVC). ### Claim 12 (depends on 9) The fire-rated assembly of claim 9, wherein a length of the first flange is shorter than a length of the second flange. ### Claim 13 (depends on 9) The fire-rated assembly of claim 9, wherein the gasket is hollow. ### Claim 14 (depends on 9) The fire-rated assembly of claim 9, wherein the gasket is compressible. ### Claim 15 (depends on 9) The fire-rated assembly of claim 9, wherein the gasket has a circular cross-sectional shape. ### Claim 16 (depends on 9) The fire-rated assembly of claim 9, wherein the gasket has a flat cross-sectional shape. ### Claim 17 (depends on 9) The fire-rated assembly of claim 9, wherein the gasket comprises a rounded shape along a portion of the gasket that contacts the overhead structure. ### Claim 18 (depends on 9) The fire-rated assembly of claim 9, wherein the gasket is attached to both the first and second flanges of the angle piece. ### Claim 19 (depends on 9) The fire-rated assembly of claim 9, wherein the gasket is formed from a fire-resistant material. ### Claim 20 (depends on 9) The fire-rated assembly of claim 9, wherein the gasket and the angle piece are formed by a co-extrusion process.