Fire or Smoke Barrier
AssigneeCoopers Fire Limited
InventorJames Martin Reed
Life of this patent
Estimating the term…
Abstract
A fire or smoke barrier (1) having a head box (2) for housing a curtain (4) which is open at its underside to allow the curtain to be deployed and withdrawn. The head box (2) houses a roller (3) for the curtain (4) to be rolled from for deployment and rolled back onto for withdrawal and attached at the bottom of the curtain (4) is a bottom bar (7) for weighing down the curtain (4) when deployed. The head box (2) has one or more apertures (14, 15) for cleaning air circulation and being provided at the, or each, aperture (14,15) with a spring (22) loaded trap (16,17) normally held open by a fusible link (31), the link fusing (31) in event of fire.
Claims17
A smoke or fire barrier having a curtain comprising:
- a head box for housing the curtain, open at its underside to allow the curtain to be deployed and withdrawn;
- a roller, housed in the head box, for the curtain to be rolled from for deployment and rolled back onto for withdrawal;
- and
- a bottom bar attached to the bottom of the curtain for weighing down the curtain when deployed,
- the head box having:
- one or more apertures for cleaning air circulation and being provided at the or each aperture with
- a spring loaded trap normally held open by a fusible link, the link fusing in event of fire.
Dependencies are inferred from the claim text.