Fire-break
First Claim
Patent Images
1. A fire-break for passing a hollow element, such as a pipe, sleeve or tube through a building wall, partition or ceiling, comprising:
- an elongated flange formed from a substantially incombustible material mounted about the hollow element and extending to the wall on at least one side thereof, said flange including,a first layer of a fire-proof material extending to said element and on said wall;
a second layer of incombustible fibers disposed on said layer; and
at least one closable door means mounted within said hollow element and provided with means for closing the door means to block air flow within said hollow element in response to a fire.
1 Assignment
0 Petitions
Accused Products
Abstract
There is described a fire-break for passing at least one hollow element such as pipe, sleeve, tube, through a building wall, notably a partition or ceiling, which comprises a flange from substantially incombustible material which is mounted around said element.
-
Citations
12 Claims
-
1. A fire-break for passing a hollow element, such as a pipe, sleeve or tube through a building wall, partition or ceiling, comprising:
-
an elongated flange formed from a substantially incombustible material mounted about the hollow element and extending to the wall on at least one side thereof, said flange including, a first layer of a fire-proof material extending to said element and on said wall; a second layer of incombustible fibers disposed on said layer; and at least one closable door means mounted within said hollow element and provided with means for closing the door means to block air flow within said hollow element in response to a fire. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
-
Specification