Fire and water resistant expansion and seismic joint system
AssigneeEmseal Joint Systems Ltd.
InventorsLester Hensley, Bill Witherspoon
Life of this patent
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Abstract
A fire and water resistant expansion and seismic joint system has a cover plate; a spline attached to the cover plate along a first edge of the spline; and a core comprising a first core portion and a second core portion, each portion being located on an opposing face of the spline. The first core portion and the second core portion have a fire-retardant material infused therein. The spline depends from the cover plate in a one piece construction and extends into the core to a depth within the core, and is positioned in a gap between substantially coplanar substrates such that the cover plate overlies the gap. Each portion of the core is compressed between a respective face of the spline and a face of one of the coplanar substrates.
Claims17
A fire and water resistant expansion and seismic joint system, comprising:
- a cover plate;
- a core comprising a first core portion and a second core portion;
- a spline attached to the cover plate along a first edge of the spline;
- the first core portion having a fire retardant material infused therein located on a first face of the spline;
- the second core portion having a fire retardant material infused therein located on a second face of the spline;
- wherein the spline depends from the cover plate in a one piece construction and extends into the core to a depth within the core and is positioned in a gap between substantially coplanar substrates such that the cover plate overlies the gap;
- and
- wherein the first core portion is compressed between the first face of the spline and one of the coplanar substrates and the second core portion is compressed between the second face of the spline and the other of the coplanar substrates, and the fire and water resistant expansion and seismic joint system is capable of withstanding exposure to a temperature of about 540° C. or greater for about five minutes.
A fire and water resistant expansion and seismic joint system, comprising:
- a cover plate;
- a core comprising a first core portion and a second core portion;
- a spline attached to the cover plate along a first edge of the spline;
- the first core portion having a fire retardant material infused therein located on a first face of the spline;
- the second core portion having a fire retardant material infused therein located on a second face of the spline;
- wherein the spline depends from the cover plate in a one piece construction and extends into the core to a depth within the core and is positioned in a gap between substantially coplanar substrates such that the cover plate overlies the gap;
- and
- wherein the first core portion is compressed between the first face of the spline and one of the coplanar substrates and the second core portion is compressed between the second face of the spline and the other of the coplanar substrates;
- and
- wherein a layer comprising the fire retardant material is sandwiched between the material of the core, and the core is not coated with any fire retardant material on any outer surface of the core, and the fire and water resistant expansion and seismic joint system is capable of withstanding exposure to a temperature of about 540° C. or greater for about five minutes.
Dependencies are inferred from the claim text.