Fire-stop system for placement in a conduit through which a thermally weakenable pipe extends, method for placing the system and conduit provided with such a system
First Claim
1. A rigid and thermally stable conduit having an inner wall defining an inner space through which a single pipe or a single bundle of pipes extends, each pipe being a, relatively, thermally weakenable pipe having an outer wall, wherein the inner space includes a system comprising at least a thermally expandable device which includes at least one component having a non-linear thermal expansion characteristic, wherein the device has surfaces which start melting at a temperature under a lowest end of a temperature-range in which the device displays a non-linear expansion characteristic which surfaces then form a sticky material, the device being made of a vulcanizable compound having a predetermined shape, the device being positioned concentrically relative to the inner space for concentrically surrounding the pipe or the single bundle of pipes, and such that:
- a gas-entrance space is located between the device and the inner wall of the conduit, between the outer wall of the pipe or outer walls of the single bundle of pipes and the device, or through the device and is configured to allow hot gas to enter the gas-entrance space whereby the sticky material is formed at the surfaces of the device and the device is firmly fixed within the conduit before onset of the non-linear thermal expansion of the device.
1 Assignment
0 Petitions
Accused Products
Abstract
A thermally expandable fire-stop system for placement in a thermally stable conduit having an inner wall defining an inner space through which a single pipe, being a, relatively, thermally weakenable pipe having an outer wall, extends, or will extend, the system comprising at least a device which includes at least one component having a non-linear thermal expansion characteristic.
-
Citations
24 Claims
-
1. A rigid and thermally stable conduit having an inner wall defining an inner space through which a single pipe or a single bundle of pipes extends, each pipe being a, relatively, thermally weakenable pipe having an outer wall, wherein the inner space includes a system comprising at least a thermally expandable device which includes at least one component having a non-linear thermal expansion characteristic, wherein the device has surfaces which start melting at a temperature under a lowest end of a temperature-range in which the device displays a non-linear expansion characteristic which surfaces then form a sticky material, the device being made of a vulcanizable compound having a predetermined shape, the device being positioned concentrically relative to the inner space for concentrically surrounding the pipe or the single bundle of pipes, and such that:
a gas-entrance space is located between the device and the inner wall of the conduit, between the outer wall of the pipe or outer walls of the single bundle of pipes and the device, or through the device and is configured to allow hot gas to enter the gas-entrance space whereby the sticky material is formed at the surfaces of the device and the device is firmly fixed within the conduit before onset of the non-linear thermal expansion of the device. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19)
-
20. A method for providing a fire-stop in a rigid conduit having an inner wall defining an inner space through which a single pipe or a single bundle of pipes extends, or will extend, each pipe being a thermally weakenable pipe having an outer wall, wherein the method includes:
-
positioning in the inner space a thermally expandable device which includes at least one component having a non-linear thermal expansion characteristic, wherein the device has surfaces which start melting at a temperature under a lowest end of a temperature range in which the device displays its non-linear expansion characteristic and which then form a sticky material, the device being made of a vulcanizable compound having a predetermined shape; positioning the device concentrically relative to the inner space for concentrically surrounding the pipe or the bundle of pipes; and positioning the device such that; a gas-entrance space is located between the device and the inner wall of the conduit, between the outer wall of the pipe or outer walls of the bundle of pipes and the device, or through the device and is configured to allow hot gas to enter the gas-entrance space whereby the sticky material is formed at the surfaces of the device and the device is firmly fixed within the conduit before onset of the non-linear thermal expansion of the device. - View Dependent Claims (21, 22, 23, 24)
-
Specification