Fire protection apparatus and method

• US 20040159448A1
• Filed: 01/31/2003
• Published: 08/19/2004
• Est. Priority Date: 01/31/2003
• Status: Active Grant

• Current Assignee: Edward L. Robinson Jr
• Original Assignee: Edward L. Robinson Jr
• Inventors: Robinson, Edward L. Jr.
• Granted Patent: US 6,918,447 B2
• Time in Patent Office: Days
• US Class Current: 169/46
• CPC Class Codes: A62C 2/10 Fire-proof curtains
• CPC Class Codes: E06B 9/0692 comprising flexible sheets as closing screen

Abstract

A fire protection apparatus includes a plurality of bladders that are substantially filled with a non-flammable liquid via a manifold that is coupled to a source of non-flammable liquid and includes one or more nozzles that discharge the non-flammable liquid into each of the plurality of bladders. In one specific embodiment, the apparatus is initially in a substantially collapsed state at or near a ceiling. When fire or smoke is detected, the non-flammable liquid flows into the manifold. As the plurality of bladders begin to fill with non-flammable liquid, the weight of the filling bladders causes the fire protection apparatus to deploy, spanning from ceiling to floor. The bladders may include one or more discharge orifices that allow the non-flammable liquid to flow out of the bladder and down the exterior of the bladder once the bladder is filled to the level of its discharge orifices. In another embodiment, stationary bladders may be placed in walls, such as between buildings or between rooms in a building, to provide fire protection. These stationary bladders are filled using a manifold similar to the deployable embodiment until the bladders are substantially full. In both embodiments, the bladders may include separations between one or more of the bladders that allow a person to pass through the fire protection apparatus, if needed.

Claims

1. A fire protection apparatus comprising:

a plurality of bladders formed of flexible material, each bladder including at least one orifice positioned near a top portion of the bladder; and

a manifold that provides at least one discharge nozzle in an upper portion of each of the plurality of bladders, wherein non-flammable liquid passes through the manifold and out of the at least one discharge nozzle to fill each of the plurality of bladders with the non-flammable liquid up to the level of the at least one orifice.

2. The apparatus of claim 1 wherein the non-flammable liquid, once to the level of the at least one orifice in a bladder, overflows from the interior of the bladder to the exterior of the bladder and flows down the exterior of the bladder.

3. The apparatus of claim 1 further comprising a separation between at least two of the plurality of bladders that allows a person to pass through the apparatus when the plurality of bladders are filled to the level of the at least one orifice with the non-flammable liquid.

4. The apparatus of claim 1 further comprising a bottom portion that joins together the plurality of bladders.

5. The apparatus of claim 1 wherein the plurality of bladders is initially in a collapsed state, and changes to a deployed state when the non-flammable liquid passes through the manifold and begins to fill the plurality of bladders.

6. The apparatus of claim 5 wherein the apparatus in the collapsed state is in proximity to a ceiling, and wherein the apparatus in the deployed state extends from the ceiling to a floor below.

7. The apparatus of claim 1 further comprising evacuation instructions on the exterior of the plurality of bladders.

8. The apparatus of claim 1 wherein the flexible material comprises non-permeable material.

9. The apparatus of claim 1 wherein the flexible material comprises a semi-permeable material that allows the non-flammable liquid to seep through the semi-permeable flexible material and thereby coat an exterior of each bladder with the non-flammable liquid.

10. A fire protection apparatus comprising:

a plurality of bladders formed of flexible material and substantially filled with a non-flammable liquid; and

a top portion that joins together the plurality of bladders.

11. The apparatus of claim 10 wherein each of the plurality of bladders includes at least one orifice positioned near a top portion of the bladder, and wherein the plurality of bladders are filled with the non-flammable liquid to a level at or below the level of the at least one orifice.

12. The apparatus of claim 10 further comprising a manifold that provides at least one discharge nozzle in an upper portion of each of the plurality of bladders, wherein non-flammable liquid passes through the manifold and out of the at least one discharge nozzle to fill each of the plurality of bladders with the non-flammable liquid up to the level of the at least one orifice.

13. The apparatus of claim 10 further comprising a bottom portion that joins together the plurality of bladders.

14. The apparatus of claim 10 further comprising a separation between at least two of the plurality of bladders that allows a person to pass through the apparatus when the plurality of bladders are filled to the level of the at least one orifice with the non-flammable liquid.

15. The apparatus of claim 10 further comprising evacuation instructions on the exterior of the plurality of bladders.

16. The apparatus of claim 10 wherein the flexible material comprises non-permeable material.

17. The apparatus of claim 10 wherein the flexible material comprises semi-permeable material.

18. A fire protection apparatus comprising:

a plurality of bladders formed of semi-permeable flexible material; and

a manifold that provides at least one discharge nozzle in an upper portion of each of the plurality of bladders, wherein non-flammable liquid passes through the manifold and out of the at least one discharge nozzle to fill each of the plurality of bladders with the non-flammable liquid, wherein the liquid seeps through the semi-permeable flexible material and thereby coats an exterior of each bladder with the non-flammable liquid.

19. A fire protection apparatus comprising:

a plurality of bladders formed of flexible material, each bladder including at least one orifice positioned near a top portion of the bladder, the plurality of bladders initially being at least partially collapsed;

a manifold that provides at least one discharge nozzle in an upper portion of each of the plurality of bladders, wherein non-flammable liquid passes through the manifold and out of the at least one discharge nozzle into the plurality of bladders;

a top portion of the apparatus that encloses the at least one discharge nozzle on the manifold, the top portion being fixedly coupled to a structural member capable of supporting the plurality of bladders when the plurality of bladders are substantially filled with a non-flammable liquid;

side portions of each of the plurality of bladders that initially are at least partially collapsed so the plurality of bladders fit within a compartment in a ceiling; and

at least one spring-loaded door that has a spring strength sufficient to hold the at least partially collapsed bladders within the compartment in the ceiling, and that opens when the bias of the spring is overcome by the weight of the non-flammable liquid filling the plurality of bladders.

20. A method for protecting an area from the spread of fire and smoke, the method comprising the steps of:

(A) installing a fire protection apparatus, the fire protection apparatus comprising;

a plurality of bladders formed of flexible material, each bladder including at least one orifice positioned near a top portion of the bladder, the plurality of bladders initially being at least partially collapsed; and

a manifold that provides at least one discharge nozzle in an upper portion of each of the plurality of bladders, wherein the manifold is coupled to a source of non-flammable liquid;

(B) directing non-flammable liquid through the manifold into the plurality of at least partially collapsed bladders, wherein the weight of the non-flammable liquid filling the plurality of bladders causes the plurality of bladders to extend to a substantially non-collapsed state, wherein after extension of the plurality of bladders each of the plurality of bladders continues to fill with the non-flammable liquid up to the level of the at least one orifice; and

(C) continuing to direct the non-flammable liquid through the manifold into the plurality of bladders to cause the non-flammable liquid to overflow out of the at least one orifice in each bladder and flow down an exterior portion of the bladder.

21. The method of claim 20 wherein the flexible material comprises non-permeable material.

22. The method of claim 20 wherein the flexible material comprises a semi-permeable material that allows the non-flammable liquid to seep through the semi-permeable flexible material and thereby coat an exterior of each bladder with the non-flammable liquid.

23. The method of claim 20 further comprising the step of spraying the non-flammable liquid on an upper exterior portion of the plurality of bladders.

24. A method for protecting an area from the spread of fire and smoke, the method comprising the steps of:

(A) installing a fire protection apparatus comprising;

a plurality of bladders formed of flexible material; and

a manifold that provides at least one discharge nozzle in an upper portion of each of the plurality of bladders;

(B) substantially filling the plurality of bladders in the fire protection apparatus by directing a non-flammable liquid through the manifold and at least one discharge nozzle into the plurality of bladders.

25. The method of claim 24 wherein each bladder includes at least one orifice positioned near a top portion of the bladder, and step (B) comprises the step of filling each bladder with the non-flammable liquid to the level of the at least one orifice.

26. The method of claim 24 wherein the flexible material comprises non-permeable material.

27. The method of claim 24 wherein the flexible material comprises a semi-permeable material that allows the non-flammable liquid to seep through the semi-permeable flexible material and thereby coat an exterior of each bladder with the non-flammable liquid.

28. The method of claim 24 further comprising the step of spraying the non-flammable liquid on an upper exterior portion of the plurality of bladders.