Fire stop for light fixture
AssigneeTenmat Limited
InventorsAdrian Michael Steer, Peter Tonge, John Valentine
Life of this patent
Estimating the term…
Abstract
A fire stop for use with a light fixture in a suspended ceiling or wall. It prevents flames and smoke from passing through the light fixture and spreading throughout a building by moving above the ceiling or behind the walls. The fire stop has a lightweight enclosure that defines an interior space disposed above the suspended ceiling, or behind the wall. Contained within the interior space are a portion of the light fixture and a layer of intumescent material. The intumescent material forms a material with a relatively low thermal conductivity that substantially fills the interior space, impeding the movement of flames or smoke, when the intumescent material reaches at least a pre-determined activation temperature.
Claims15
A fire stop for use with a light fixture, the fire stop comprising:
- an enclosure comprised of at least one wall having an upper portion, the at least one wall defining an interior space sized to house a can of the light fixture;
- and
- an intumescent material within the interior space of the enclosure and disposed only along the upper portion of the at least one wall, the intumescent material configured to form a material with a relatively low thermal conductivity that substantially fills the interior space of the enclosure when the intumescent material reaches at least a pre-determined activation temperature.
A combination fire stop and light fixture used in a panel comprising a portion of a ceiling or wall, the combination comprising:
- an enclosure comprised of at least one wall defining an interior space, the enclosure disposed inwardly of the panel and substantially surrounding a hole in the panel;
- at least a can of a light fixture extending through the hole and disposed within the interior space,
- a layer of intumescent material disposed only within the enclosure but outside of the can of the light fixture, the intumescent material configured to form a material with a relatively low thermal conductivity that substantially fills the interior space when the intumescent material reaches at least a pre-determined activation temperature;
- and
- a thermally-insulating gasket disposed between the panel and the enclosure, wherein the gasket extends substantially parallel to the panel and outward of the at least one wall of the enclosure and extends within the interior space and snugly fits around the can of the light fixture.
A fire stop for use with a light fixture, the fire stop comprising:
- an enclosure comprised of at least one wall having an upper portion, the at least one wall defining an interior space sized to house a can of the light fixture;
- an intumescent material within the interior space of the enclosure and disposed only along the upper portion of the at least one wall, the intumescent material configured to form a material with a relatively low thermal conductivity that substantially fills the interior space of the enclosure when the intumescent material reaches at least a pre-determined activation temperature;
- a thermally-insulating gasket coupled to a lower portion of the enclosure;
- and
- wherein the gasket is disposed within the interior space and is adapted to snugly surround the light can.
A combination fire stop and light fixture used in a panel comprising a portion of a ceiling or wall, the combination comprising:
- an enclosure comprised of at least one wall defining an interior space, the enclosure disposed inwardly of the panel and substantially surrounding a hole in the panel;
- at least a can of a light fixture extending through the hole and disposed within the interior space;
- a layer of intumescent material disposed only within the enclosure but outside of the can of the light fixture, the intumescent material configured to form a material with a relatively low thermal conductivity that substantially fills the interior space when the intumescent material reaches at least a pre-determined activation temperature;
- a thermally-insulating gasket disposed between the panel and the enclosure;
- and
- wherein the gasket extends within the interior space and snugly fits around the can of the light fixture.
Dependencies are inferred from the claim text.