公开(公告)号：US11072924B2

公开(公告)日：2021-07-27

申请号：US16471467

申请日：2017-11-17

Applicant: ROCKWOOL INTERNATIONAL A/S

Inventor： Rainer Albers

IPC: E04D13/064 ,  E04B1/94 ,  A62C2/06 ,  F16L5/04 ,  F16L57/04 ,  H02G3/22

Abstract: The disclosure relates to a system for providing a fire safe sealing in an aperture in a wall, a ceiling or a floor of a building, consisting of at least two block shaped sealing elements with two main surfaces being oriented parallel to each other and at least three lateral faces connecting the main surfaces to each other, of which at least one element is made from mineral fibres and a binding agent, whereby lateral faces being arranged adjacent to each other, or lateral faces and main surfaces being arranged adjacent to each other, incorporate an angle being unequal to 90° and whereby each element is shorter than the length of the aperture and smaller than the height of the aperture.

公开(公告)号：US10975989B2

公开(公告)日：2021-04-13

申请号：US15738080

申请日：2016-06-09

Applicant: Rockwool International A/S

Inventor： Rainer Albers

IPC: F16L5/04 ,  H02G3/04 ,  H02G3/22 ,  A62C2/06

Abstract: The disclosure relates to an intumescent fire sleeve for a conduit, such as a pipe, a cable or a device penetrating a wall, a ceiling or a floor in a building, said fire sleeve comprising at least one layer of intumescent material and one carrier being connected to the layer of intumescent material, and said fire sleeve having a length (L) that at least corresponds to a circumference of the conduit for which it is intended, with the characteristics that at least the carrier has spring-loaded characteristics and that the carrier, in a non-applied position has the ability to coil onto itself in a spiral manner. The disclosure also relates to a coil of such intumescent fire sleeves and to a method for installation of such an intumescent fire sleeve.