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This invention describes a fire-stopping device that uses a fire-resistant container filled with a material that expands when heated. The container is sealed by an adhesive seam, which is specifically designed to break open at a lower force than the expanding material's pressure. This allows the expanding material to be released in a controlled manner to seal off fire pathways, with the claims specifically narrowing the release mechanism to an adhesive closing a seam.
Why it matters: Since 2000, advancements in material science, particularly in polymer and adhesive technologies, offer greater precision in designing materials with specific, temperature-dependent rupture strengths. This could make the controlled failure of the adhesive seam more reliable and predictable than previously possible.
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