Self-obstructing flammable fluid carrying conduit
AssigneeThomas R. Crane
InventorCharles G. Keith
Life of this patent
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Abstract
The present invention is directed to improved assembly for transporting flammable fluids. In an example, the assembly comprises a conduit, a liner, and a core. The liner comprises a material that contracts in response to an elevation in temperature. In an example, the liner comprises a material that expands in response to an elevation in temperature.
Claims17
An assembly for restricting fluid flow in response to elevated temperatures, the assembly comprising:
- a conduit configured for transport of flammable fluid;
- a liner within the conduit;
- the liner substantially encircling an aperture configured to allow fluids to flow through;
- and
- a core within the liner, the core comprising a heat resistant material;
- wherein the core comprises expandable foam;
- wherein upon exposing the conduit to elevated temperature, the liner within the core expands sufficient to substantially prevent flow of flammable fluid through the conduit.
An assembly for restricting fluid flow in response to elevated temperatures, the assembly comprising:
- a conduit configured for transport of flammable fluid;
- a liner within the conduit;
- the liner comprising a material configured to contract in response to an elevation in temperature;
- the liner disposed on an inner surface of the conduit;
- the liner defining an aperture;
- a non-expandable core within the conduit;
- wherein upon exposing the conduit to elevated temperature, the liner within the conduit contracts around the core to close the aperture sufficient to substantially prevent flow of flammable fluid through the conduit;
- and
- wherein the core is formed from an expandable second liner.
An assembly for restricting gas flow in response to elevated temperatures, the assembly comprising:
- a conduit configured for transport of flammable fluids;
- a liner disposed on an inside wall of the conduit, the liner defines an aperture, the liner comprises a material configured to expand in response to an increase in temperature;
- a solid, non-expandable core;
- wherein upon exposing the conduit to elevated temperature, the liner within the conduit expands to contact the solid, non-expandable core to close the aperture sufficient to substantially prevent flow of flammable fluid through the conduit.
Dependencies are inferred from the claim text.