Intumescent grid
AssigneeBrightholme Inc.
InventorsWesley James Wall, Adam Wall, Shekaib Adab
Life of this patent
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Abstract
An intumescent mesh has a flexible grid with a plurality of strands that form a series of openings in the flexible grid, and an intumescent coating applied to the flexible grid. The intumescent coating is made of an expandable graphite and a polymer-based carrier as ingredients and having an activation temperature above which the intumescent coating swells. The grid is sized such that the intumescent coating permits airflow through the flexible grid until the intumescent coating is exposed to temperatures at or above the activation temperature, whereupon the intumescent coating swells to seal the openings and prevent air flow through the flexible grid.
Claims7
An intumescent mesh, comprising:
- a flexible grid comprising a plurality of strands that form a series of openings in the flexible grid, the flexible grid having a mesh size of about ¼+/− 1/16 inches;
- and
- an intumescent coating applied to the flexible grid such that the intumescent coating is applied substantially equally to all sides of the strands, the intumescent coating having an activation temperature above which the intumescent coating swells, the intumescent coating comprising expandable graphite in a polymer-based carrier that cures from a liquid to a solid, the intumescent coating being applied to the flexible grid such that airflow is permitted through the series of openings until the intumescent coating is exposed to temperatures at or above the activation temperature;
- wherein:
- the flexible grid with the intumescent coating applied is rollable into a roll;
- an available airflow area through the intumescent coating is approximately 40-70% of the area of the flexible grid;
- and
- upon exposure to temperatures at or above the activation temperature, the intumescent coating swells to seal the openings and prevent air flow through the flexible grid.
Dependencies are inferred from the claim text.