Expansion joint seal system with internal intumescent springs providing fire retardancy

Patent metadata

Field	Value
Publication number	US-10125490-B2
Application number	US-201815960718-A
Country	US
Kind code	B2
Filing date	Apr 24, 2018
Priority date	Jul 22, 2016
Publication date	Nov 13, 2018
Grant date	Nov 13, 2018

Abstract

The present disclosure relates generally to systems for providing a durable water-resistant and fire-resistant foam-based seal in the joint between adjacent panels. A fire-resistant and water-resistant expansion joint seal is provided which includes one or more foam members and a plurality of intumescent members interspersed within the foam member or members to provide a spring recovery force and fire resistance.

First claim

What is claimed is:

1. A fire-resistant and water-resistant expansion joint seal, comprising:
a plurality of foam members,
a plurality of intumescent members,
each of the plurality of intumescent members having a lateral cross section, each of the lateral cross sections presenting a wave-like profile;
each of the plurality of intumescent members having an intumescent member spring force;
each of the plurality of intumescent members interspersed between two of the plurality of foam members; and
where at least one of the plurality of the intumescent members extends beyond one of a top surface, a bottom surface, or a side of at least one of the plurality of foam members.

2. The joint seal of claim 1 , further comprising a vapor-impermeable membrane positioned intermediate one of the plurality of foam members and one of the plurality of intumescent members.

3. The joint seal of claim 1 , wherein each of the plurality of foam members has a bottom surface and further comprising a vapor impermeable membrane adhered to the bottom surface of at least one of the plurality of foam members.

4. A fire-resistant and water-resistant expansion joint seal, comprising:
a foam member,
the foam member having a foam height;

a plurality of intumescent members,
each of the plurality of intumescent members having a lateral cross section, the lateral cross section presenting wave-like profile;
each of the plurality of intumescent members having an intumescent member spring force; and

each of the plurality of intumescent members interspersed within the foam member;
each of the plurality of intumescent members adhered to the foam member;
at least one of the plurality of intumesce members extending beyond one of a top surface, a bottom surface, and a side of the foam member.

5. A fire-resistant and water-resistant expansion joint seal, comprising:
a first plurality of foam members,
a first plurality of intumescent members,
each of the first plurality of intumescent members having a lateral cross section, each of the lateral cross sections of the first plurality of intumescent members presenting a wave-like profile;
each of the first plurality of intumescent members having a first intumescent spring force;
each of the first plurality of intumescent members interspersed between two of the first plurality of foam members,

a second plurality of foam members,
a second plurality of intumescent members,
each of the second plurality of intumescent members having a lateral cross section,
each of the lateral cross sections of the second plurality of intumescent members presenting a wave-like profile;
each of the second plurality of intumescent members having an second intumescent member spring force;
each of the second plurality of intumescent members interspersed between two of the second plurality of foam members,

a vapor-impermeable membrane, the vapor-impermeable membrane adhered to a bottom of the first plurality of foam members and the vapor-impermeable membrane adhered to a top of the second plurality of foam members; and
wherein one of the first plurality of intumescent members extends beyond one of a top surface of one of the first plurality of foam members, a bottom surface of one of the first plurality of foam members, or a side of one of the first plurality of foam members wherein one of the second plurality of intumescent members extend beyond one of a top surface of one of the second plurality of foam members, a bottom surface of one of the second plurality of a foam members, or a side of one of the second plurality of foam members.

6. A fire-resistant and water-resistant expansion joint seal, comprising:
a foam member,
the foam member having a foam height;

a plurality of intumescent members,
each of the plurality of intumescent members having a lateral cross section, the lateral cross section presenting a wave-like profile;

each of the plurality of intumescent members having an intumescent member spring force;
each of the plurality of intumescent members interspersed within the foam member;
each of the plurality of intumescent members adhered to the foam member; and

an extruded gland at least partially encasing the foam member.

Assignees

• Schul International Co Llc

Inventors

• Robinson Steven R

Classifications

• F16J15/024

  the packing being locally weakened in order to increase elasticity · CPC title

• E04B1/6812

  Compressable seals of solid form · CPC title

• E04B1/948 Primary

  Fire-proof sealings or joints (for doors or windows E06B5/164) · CPC title

• E04B2001/6818

  Joints with swellable parts · CPC title

• E04B1/6807

  Expansion elements for parts cast in situ · CPC title