Back to results
US 10,295,088 B2Granted
Device for passing pipes or cables through an opening in a building
AssigneeHilti Aktiengesellschaft
InventorsMario Paetow, Christian Förg, Rudolf Semler, Thomas Monden
Life of this patent
Estimating the term…
Abstract
The invention relates to a device for passing pipes or cables through an opening in a building. Said device comprises a sleeve-like housing that has an axial passage channel that is open at its opposite ends; bristles that are mounted on the walls of the passage channel in such a way that they are opposite each other and that are extended inwards in such a way that they mesh with one another in order to close the passage channel; and flexible strips of material that are mounted in the passage channel and that are coated with an intumescent material.
Claims18
A device, comprising:
- a sleeve-like housing comprising a passage channel that is open at opposite ends;
- a curtain extending inwards from a wall of the passage channel;
- and
- a flexible material mounted in the passage channel at a location spaced from the curtain and coated with an intumescent material, wherein the device is suitable for passing a pipe or cable through an opening in a building and the curtain at least partially bends in a through-direction of the passage channel when a pipe or cable is in the device, and wherein the curtain comprises at least one selected from the group consisting of an inorganic fiber and an organic fiber.
1 more element
Dependencies are inferred from the claim text.