RACEWAY
First Claim
Patent Images
1. A raceway comprising:
- a plurality of wall portions adjoining a base portion together defining a plurality of longitudinal open channels, the open side of each channel being arranged to provide access for installation of one or more cables or pipes or wires within the respective channel; and
an intumescent layer disposed on the inner surface of at least one of the wall portions adjacent the open side of the respective channel, the intumescent layer having a non-activated state in which the open side of the channel is maintained substantially open and a thermally activated state in which the or each intumescent layer expands so as to close the open side of the respective channel.
1 Assignment
0 Petitions
Accused Products
Abstract
A raceway and method of forming a raceway is disclosed in which one or more intumescent layers are disposed on the raceway.
9 Citations
16 Claims
-
1. A raceway comprising:
-
a plurality of wall portions adjoining a base portion together defining a plurality of longitudinal open channels, the open side of each channel being arranged to provide access for installation of one or more cables or pipes or wires within the respective channel; and an intumescent layer disposed on the inner surface of at least one of the wall portions adjacent the open side of the respective channel, the intumescent layer having a non-activated state in which the open side of the channel is maintained substantially open and a thermally activated state in which the or each intumescent layer expands so as to close the open side of the respective channel. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
-
-
11. A raceway comprising one or more channels for supporting power or signal conductors, the or each channel being at least partially coated with an intumescent material arranged to substantially close the or each channel in response to thermal activation of the intumescent material so as to thermally insulate the interior of the channel.
-
12. A method of forming a raceway comprising the steps of:
-
forming a plurality of wall portions adjoining a base portion together defining a plurality of longitudinal open channels, the open side of each channel being arranged to provide access for installation of one or more cables or pipes or wires within the respective channel; and disposing an intumescent layer on the inner surface of at least one of the wall portions adjacent the open side of the respective channel, the intumescent layer having a non-activated state in which the open side of the channel is maintained substantially open and a thermally activated state in which the or each intumescent layer expands so as to close the open side of the channel. - View Dependent Claims (13, 14, 15)
-
-
16. (canceled)
Specification