Fire resistant expansion joint
AssigneeManville Corporation
InventorsAllan R. LaRoche, Douglas S. Pearmain
Life of this patent
Estimating the term…
Abstract
An expansion joint having a weather resistant cover and a fire barrier. The cover is a bellows attached to the upper surface of the adjacent joint structure by mounting flanges, and the barrier is a fire resistant inorganic fabric sheet mounted in the joint. The fabric supports resilient fire resistant inorganic fibrous insulation and is connected to the adjacent joint structure by mounting flanges. The flanges may be in the form of a bifurcated clamp, and one of the fabric-engaging clamp faces may be crimped and pierced to better grip the fabric.
Claims6
In an expansion joint having spaced members subject to relative trasverse movement, a fire barrier comprising:
- an elongated flexible fire resistant sleeve having side edge portions;
- mounting flange means attached to the side edge portions of the flexible sleeve;
- each mounting flange means being connected to one of the spaced members to support the flexible sleeve adjacent the spaced members;
- and
- resilient fire resistant insulation contained within the sleeve;
- the flexible sleeve being curved across its width to accommodate movement of the space members away from each other.
An external weather resistant expansion joint between two spaced members subject to relative transverse movement, comprising:
- an elongated flexible bellows having side edge portions;
- means connecting the side edge portions of the bellows to the spaced members so that the bellows covers the space between the spaced members and extends upwardly from the spaced members, thereby protecting the space against the entry of water;
- an elongated flexible fire resistant sheet having side edge portions;
- mounting flange means attached to the side edge portions of the flexible sheet;
- each mounting flange means being connected to one of the spaced members to support the flexible sheet between the spaced members and beneath the bellows;
- and
- resilient fire resistant insulation supported by the flexible sheet;
- the flexible sheet being curved across its width to accommodate movement of the spaced members away from each other.
Dependencies are inferred from the claim text.