FIRE PROTECTION SLEEVE

• US 20190195395A1
• Filed: 03/05/2019
• Published: 06/27/2019
• Est. Priority Date: 04/27/2015
• Status: Active Grant

• Current Assignee: Hilti AG
• Original Assignee: Hilti AG
• Inventors: Muenzenberger, Herbert
• Granted Patent: US 10,641,417 B2
• Time in Patent Office: Days
• CPC Class Codes: A62C 2/065 having as the main closure device materials, whose characteristics undergo an irreversible change under high temperatures, e.g. intumescent
• CPC Class Codes: A62C 3/16 in electrical installations, e.g. cableways
• CPC Class Codes: F16L 5/04 to form a firebreak device
• CPC Class Codes: H02G 3/0412 Heat or fire protective means for fire in electric circuits A62C3/16
• CPC Class Codes: H02G 3/22 Installations of cables or lines through walls, floors or ceilings, e.g. into buildings

Abstract

A firestop collar for sealing of openings, especially of line penetrations, that pass-through walls or ceilings, has a frame and a block of optionally intumescent material disposed therein, and is characterized in that an intumescent inlay is disposed between the block and the frame.

Claims

1-14. -14. (canceled)

15. :

A firestop apparatus, comprising;

a frame comprising an opening;

a first area of intumescent material in the frame; and

a second area of intumescent material in the frame at a position adjacent to the first area of intumescent material, wherein the second area of intumescent material is between the frame and the first intumescent material and wherein each of the first area of intumescent material and the second area of intumescent material extends in a first direction, the opening in the frame to allow a building feature to pass through in a second direction perpendicular to the first direction.

16. :

The firestop apparatus of claim 15, wherein the frame comprises;

at least one side portion, and

at least one front portion extending from the at least one side portion.

17. :

The firestop apparatus of claim 16, wherein;

the at least one side portion extends in the second direction, and

the at least one front portion extends in the first direction.

18. :

The firestop apparatus of claim 15, wherein the first area of intumescent material comprises a first hole aligned with the opening in the frame to allow the building feature to pass through.

19. :

The firestop apparatus of claim 18, wherein the first hole is smaller than the opening in the frame.

20. :

The firestop apparatus of claim 19, wherein the second area of intumescent material comprises spaced ends corresponding to a second hole aligned with the first hole.

21. :

The firestop apparatus of claim 20, wherein the second hole is smaller than the opening in the frame.

22. :

The firestop apparatus of claim 15, wherein the frame has a modular structure.

23. :

The firestop apparatus of claim 15, wherein;

the frame comprises an area for coupling to a fastener, and

the fastener is to attach the frame to a wall or ceiling.

24. :

The firestop apparatus of claim 15, wherein the frame has a rectangular shape.