Auxetic expansion joint seal
AssigneeSchul International Company, LLC
InventorSteven R. Robinson
Life of this patent
Estimating the term…
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.
Claims20
A fire-resistant, water-resistant and vapor permeable expansion joint seal, comprising:
- a plurality of foam members, at least one of the plurality of foam members being auxetic, and an intumescent member,
- the intumescent member having a lateral cross section presenting a wave-like profile,
- the intumescent member having an intumescent member spring force,
- the intumescent member interspersed between two of the plurality of foam members.
The joint seal claim of 1, wherein a density of at least one of the plurality of foam members is about 16-45 kg/m3.
A fire-resistant, water-resistant and vapor permeable expansion joint seal, comprising:
- a foam member, the foam member having a foam member first side and a foam member second side, the foam member having a longitudinal opening within the foam member from near one of the group of surfaces consisting of a foam member top surface and a foam member bottom surface, the longitudinal opening less than a foam member height, the foam member being auxetic, and an intumescent member,
- the intumescent member having a lateral cross section presenting a wave-like profile,
- the intumescent member having an intumescent member spring force, and
- the intumescent member positioned in the foam member in the longitudinal opening.
Dependencies are inferred from the claim text.