Passthrough firestops

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United States of America Patent

PATENT NO 9089726
SERIAL NO

14280034

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Abstract

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A firestop element can be installed as a passthrough for a floor of a building. The element has a rigid annular body having a first section and a second section. At least a portion of the first section is fabricated of a polymer intumescent composition. This portion has an inner annular surface with a plurality of spaced lands and a void extending between each pair of lands. The second section is a sleeve having a smaller diameter than the first section.

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Patent Owner(s)

Patent OwnerAddress
URSATECH LTD649 WELHAM ROAD BARRIE L4N 0B7

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Luo, Xiaoxiong Barrie, CA 11 106
Page, John B Barrie, CA 13 127

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