Fireproof hose

• US 20080011383A1
• Filed: 04/18/2007
• Published: 01/17/2008
• Est. Priority Date: 04/20/2006
• Status: Abandoned Application

• Current Assignee: Hilti Aktiengesellschaft (Hilti Martin Family Trust)
• Original Assignee: Hilti Aktiengesellschaft (Hilti Martin Family Trust)
• Inventors: Muenzenberger, Herbert, Foerg, Christian, Paetow, Mario
• Application Number:
  US11/788,290
• Publication Number:
  US 20080011383A1
• Time in Patent Office: Days
• US Class Current: 138/177
• CPC Class Codes: F16L 5/04 to form a firebreak device
• CPC Class Codes: F16L 5/14 for double-walled or multi-channel pipes
• CPC Class Codes: H02G 3/0412 Heat or fire protective means for fire in electric circuits A62C3/16
• CPC Class Codes: H02G 3/0481 with a circular cross-section H02G3/0468, H02G3/0475 take precedence
• CPC Class Codes: H02G 3/22 Installations of cables or lines through walls, floors or ceilings, e.g. into buildings

Abstract

A fireproof hose (10) for passing conduits or cables through a constructional element is formed at least partially of an elastic and intumescent material and has a shaped profile provided on at least one of the outer surface (11) and the inner surface of the hose.

Claims

1. A fireproof hose (10) for passing conduits or cables through a constructional element and formed at least partially of an elastic and intumescent material, comprising outer surface (11) and inner surface (12) extending in a longitudinal direction (L);

and a profile provided on at least one of the outer surface (11) and the inner surface (12).

2. A fireproof hose according to claim 1, wherein the profile is formed by a plurality of ribs (13, 14) extending in the longitudinal direction (L).

3. A fireproof hose according to claim 2, wherein the ribs (13, 14) extend parallel to each other and are equidistantly spaced from each other.

4. A fireproof hose according to claim 2, wherein the ribs (13) are formed on the outer surface (11) of the hose.

5. A fireproof hose according to claim 2, wherein the ribs (14) are formed on the inner surface (12) of the hose.

6. A fireproof hose according to claim 2, wherein the ribs are formed on both the outer surface (11) and the inner surface (12) of the hose.

7. A fireproof hose according to claim 2, wherein the ribs (13, 14) have a tooth-shaped contour.