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Title:
GRANTHAM MECHANICAL VENTILATOR FOR USE IN PREVENTING FLASHOVER WHEN FIGHTING FIRES
Document Type and Number:
WIPO Patent Application WO/2013/072759
Kind Code:
A4
Abstract:
Disclosed is a mechanical firefighting device capable of operating unattended once it has been configured from the outside of a burning structure. With no firefighter presence required in the burning structure, the device removes heated air and smoke from the structure and allows the application of materials to douse the fire, thereby minimizing the occurrence of flashover, the simultaneous combustion of the contents of a burning compartment which causes a fire to burn out of control.

Inventors:
GRANTHAM ROBERT (US)
Application Number:
PCT/IB2012/002613
Publication Date:
September 26, 2013
Filing Date:
May 01, 2012
Export Citation:
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Assignee:
GRANTHAM ROBERT (US)
International Classes:
A62C31/22
Attorney, Agent or Firm:
KARASIC, David (2 Bonnievale DriveBedford, MA, US)
Download PDF:
Claims:
AMENDED CLAIMS

received by the International Bureau on 12 July 2013 (12.06.2013)

[C lai m 1 ] [canceled] A mechanical firefighting device designed to reduce the possibility of flashover, said device being controlled entirely from outside of a burning structure.

[C lai m 2] [canceled] A device as in claim 1 further comprising one or more input connectors compatible with standard firefighting hose-line connections. [C lai m 3] [canceled] A device as in claim 2 further comprising a means of forming a user-controlled fog pattern, said fog pattern being directed outward from the bu rning structure to produce a negative pressure within said structure thereby drawing out heated air and smoke from the structu re.

[C lai m 4] [canceled] A device as in claim 3 further comprising a means of controlling the flow rate and shape of the fog pattern.

[C lai m 5] [canceled] A device as in claim 4 further comprising a means to secu rely attach the device to the top of a ladder.

[C lai m 6] [canceled] A device as in claim 5 further comprising a means to secu rely attach the device to a window sill without requiring that the device be attached to a ladder.

[C lai m 7] [canceled] A device as in claim 6 further comprising a means to apply a fire suppressing substance to the inside of the burning structu re. [Claim 8] [canceled] A device as in claim 7 further comprising a nozzle to provide spinning narrow streams of water for fire suppression inside a burning structure.

[Claim 9] [canceled] A device as in claim 8 further comprising means to spray other aqueous and non-aqueous fire suppressants into a burning compartment.

[Claim 10] [New claim] A portable pre-entry suppression and ventilation attack tool, sized appropriately to be carried and configured for use by a single firefighter of normal strength and stature, to be used in fighting fires comprising: (1) a means to remove smoke and heat from a burning compartment using hydraulic ventilation through an opening in the compartment; (2) one or more input connectors compatible with standard firefighting hose-line connections; (3) a means to securely attach the tool to the top of a ladder to hold the tool in position for use; (4) a means to securely attach the tool directly to an opening in a burning compartment without requiring a ladder to hold the tool in position for use; (5) a means to douse the fire; and (6) a means to allow firefighters fast emergency egress from a burning compartment.

[Claim 11 ] [New claim] A tool as in claim 10 further comprising a means, located on the tool, to adjust the flow rate and spray pattern of said hydraulic ventilation, from outside of and below said opening in which the tool is located, without having to adjust the water flow at the water source.

[C lai m 1 2] [New claim] A tool as in claim 1 1 further comprising a means to apply water inside of said burning compartment, in multiple spiral streams the width of which are essentially less than 1 inch in diameter, exiting the tool essentially perpendicular to the tool's horizontal axis.

[C lai m 1 3] [New claim] A tool as in claim 1 2 further comprising a means to apply water inside the burning compartment in a stream of variable width and volume, exiting the tool essentially parallel to the tool's horizontal axis.

[C lai m 1 4] [New claim] A tool as in claim 1 3 further comprising a means to apply liquid fire suppressing materials other than water inside the burning compartment, in a stream of variable width and volu me, exiting the tool essentially parallel to the tool's horizontal axis.