Title of Invention

MOBILE FINE SPRAY FIRE EXTINGUISHER

Abstract The invention relates to a fine spray fire extinguisher for extinguishing glowing and fluid materials, preferably with an extinguishing medium tank volume consisting of the extinguishing medium tank (1), the watery extinguishing medium (3), the valve (5), the extinguishing medium piping (6) and the extinguishing jet (7), wherein a fine spray jet (7) as extinguishing jet and a tank for pressure gas (2) on or in the extinguishing medium tank (1). The fire extinguisher has the advantage that with the low use of water fires can be extinguished fast and in flexible manner.
Full Text FORM 2
THE PATENT ACT 197 0 (39 of 1970)
&
The Patents Rules, 2003 COMPLETE SPECIFICATION (See Section 10, and rule 13)
TITLE OF INVENTION
MOBILE FINE SPRAY FIRE EXTINGUISHER
APPLICANT(S)
a) Name : MINIMAX MOBILE SERVICES GMBH & CO., KG.
b) Nationality : GERMAN Company
C) Address : MINIMAXSTRASSE 1,
D-72574 BAD URACH GERMANY
PREAMBLE TO THE DESCRIPTION
The following specification particularly describes the invention and the manner in which it is to be performed : -

The invention relates to a mobile fine spray fire extinguisher according to the main definition of the first claim.
The invention can be deployed for extinguishing glow and fluid materials. It is particularly suitable for deployment at places, where a fluid extinguishing medium can cause larger damages. In the fire fighting technology a distinction is made - as far as mobility of extinguishing system is concerned - between mobile and stationary fire fighting systems. Stationary fire fighting systems are extinguishing systems, which are permanently installed in buildings. These have an extinguishing medium container and piping leading to the extinguishing aggregates. These are normally extinguishing jets, wherein spray jets with a spray angle up to 60° are known. This spray angle is set to the extent that the maximum possible area covered under the spray jet gets sprayed. In order to keep the number of extinguishing jets in the room to the minimum and to use minimum necessary quantity of extinguishing medium for spraying purpose the use of fine spray jets is not uncommon.
Mobile systems normally consist of a portable or moveable extinguishing medium container, to which a piping in the form of a flexible hose and an extinguishing jet is arranged. Mobile systems are aimed at extinguishing fires as quickly as possible, during which a large quantity of liquid extinguishing medium is distributed over the source of fire by means of compressed gas within the shortest possible time. The benefit of mobile extinguisher is that one person controls the extinguishing medium directly precisely at the source of fire. The volume of extinguishing medium amounts to up to 50 liter in case of mobile fire fighting system.
Due to the fact that within the shortest time much extinguishing medium with large drop diameter gets distributed on the source of fire it can result into greater damage to extinguishing medium. Since fire extinguishing is done with mobile fire fighting systems, there is this problem that considerable damage is caused to the users as well as insurance companies and since long time there is a need to design also mobile fire fighting systems in a way that as far as possible minimum water
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damages occur. With the existing mobile systems this problem so far could not be resolved.
From DD 299 098 a procedure and a fixture for extinguishing of fires by means of automatic, mobile and stationary fire fighting system on the basis of water and fuel gas are known, wherein the water is stored in a water tank and the fuel gas separately in a pressure tank and both the fluids after opening of quick opening valve reach in an atomizing chamber functioning on carburetor principle, there in the chamber these are pulverized to an aerosol and after leaving the pulverizer jet it extinguishes the fire through heat absorption. Fuel gas and water tank are arranged in different rooms, wherein the pulverizer chamber is connected with a permanently installed piping system. The present equipment is not a fire extinguisher but a fire fighting system, which functions according to the gasification principle. An attack equipment directed just over the source of fire does not exist in this system.
In GB 2 320189 A a transportable fire extinguisher is described, which has a spry gun with a spray jet, by means of which spray mist can be created, while doing the spray jet drops are sprayed at an angle of 130 degrees. These kinds of spray mists are less suitable for the targeted spraying of a fire source.
From WO 2004/10 59 57 A 1, although a jet arrangement for producing even spray fields is known, with which a targeted spray mist is directed on a source of fire, however, it is a permanently installed fire fighting system with pipes.
Mobile fire fighting equipment are not known, extinguishing media of which can be deployed with low water consumption and higher extinguishing impact dot on target at the source of fire.
It is, therefore, the task of the invention to develop a mobile fine spray fire extinguisher, with which fires can be extinguished by extinguishing liquid in quickest possible time and with lowest damage.
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This task is resolved through a mobile fine spray fire extinguisher according to the features of the first patent claim. Sub-claims reflect advantageous designs of the invention.
The invention provides a mobile, preferably a portable fine spray fire extinguisher, which consists of the extinguishing medium tank with the watery extinguishing medium, valve, extinguishing medium piping and the extinguishing medium jet, wherein the extinguishing medium jet represents a fine spray jet and a storage tank for compressed gas is arranged on or in the extinguishing medium tank.
Advantageously the fine spray jet has a spray angle of maximum 30 degree. Thus it is ensured that the occurring fine spray mist is carried in a narrow angle on the source of fire. The application of fine spray technology is suitable especially for the mobile deployment. Different from the stationary deployment of fine spray extinguishing systems, where the water impact acts mainly in flat arrangement either from top or bottom on a source of fire, with specific mobile fire extinguisher deployment it becomes possible to orient the spray jet directly on the reaction zone of a fire. Only through this, highly efficient extinguishing is achieved, especially in case of open, fast escalating fires with relatively lower need of extinguishing water. The fine diffused water with its enormously enlarged contact surface has an increased heat absorption, in conjunction with a temporary inertising effect by oxygen displacement as a result of acute evaporation. Thereby extremely short extinguishing times are possible. Between the valve and the fine spray jet it is advantageous to arrange a flexible hose. As extinguishing medium it is advantageous to use a watery solution with foaming agent. Further, it is advantageous to deploy CO2, N2, Ar or compressed air as pressure gas. The drive medium can be preserved in an internal or external drive gas storage tank.
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The spray jets are so designed that the maximum drop size of the fire extinguishing medium is 0.1 mm. Further, it is advantageous to arrange a sieve in the fire extinguishing tank. The drive gas can be brought with different operating pressures in the extinguishing liquid. In now pressure equipment up to 16 bar, in medium pressure equipment 16 to 50 bar and in high pressure equipment with pressures more than 50 bar are possible. It is of advantage to have available starting pressure of 30 bar.
The invention is explained in detail in the following three figures and with a design example. Die Figuren zeigen:
Figure 1: Fine spray fire extinguisher with a pressure tank arranged inside the
extinguishing medium tank
Figure 2: Schematic representation of the fire extinguisher with externally arranged pressure tank
Figure 3: Fine spray fire extinguisher for which no separate pressure tanks are available
The Figure 1 shows a fine spray fire extinguisher consisting of pressure tank 1 with the watery extinguishing medium 3, which represents water, in which the extinguishing medium piping with sieve protrudes inside, wherein in the extinguishing medium tank 1 a pressure gas tank 2 is arranged, which contains CO2, so that there is pressure at the valve 5 via the pipeline 9. The extinguishing jet 7 represents a spray jet with a spray angle 8 of 30 degree.
The Figure 2 shows a fire extinguisher 1, to which a pressure gas tank 2 is externally arranged and between valve 5 and fine spray jet 7 a flexible pipe 6 is arranged. The spray angle 8, which is also 30 degree, serves the purpose of quick and flexible distribution of spray mist over the source of fire. The pressure of extinguishing
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liquid is 16 bar. Besides a quick extinguishing of the fire the fire extinguisher has the advantage that a lesser volume of water in the form of small drops is distributed on the source of fire, so that lesser water damage occurs.
The Figure 3 shows a fire extinguisher 1, in which case the pressure gas 2 without separate tank is arranged through the extinguishing medium 3 and drives this from the fire extinguisher 1.
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List of reference symbols used
1 Fire extinguisher
2 Pressure gas
3 Extinguishing medium
4 Sieve
5 Valve
6 Flexible piping
7 Extinguishing jet
8 Spray angle
9 Piping

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We Claim :
1. Mobile, preferably portable fine spray fire extinguisher for extinguishing glowing and fluid materials, preferably with an extinguishing medium tank volume, consisting of the extinguishing medium tank (1), watery extinguishing medium (3) valve (5), the extinguishing medium piping (6) and the extinguishing jet (7) characterized by a fine spray jet (7) as extinguishing jet and a tank (2) for pressure gas on or in the extinguishing medium tank (1).
2. Fire extinguisher as per claim 1 characterized by the fact that the tank (2) for pressure gas represents the fire extinguishing tank (1).
3. Fire extinguisher as per claim 1 characterized by the fact that the tank (2) for pressure gas is arranged inside or outside of the extinguishing medium tank
4. Fire extinguisher as per one of the claims 1 to 3, characterized by the fact that the fine spray jet (7) has a spray angle (8) of maximum 30°.
5. Fire extinguisher as per one of the claims 1 to 3 characterized by the fact that between the valve (5) and the fine spray jet (7) a flexible hose is arranged.
6. Fire extinguisher as per one of the claims 1 to 5 characterized by the fact that as extinguishing medium (3) a watery solution with a foaming agent is used.
7. Fire extinguisher as per one of the claims 1 to 6 characterized by the fact that die maximum drop size of the extinguishing mediums is 0.1 mm.
8. Fire extinguisher as per one of the claims 1 to 7 characterized by the fact that in the extinguishing medium tank (1) a sieve (4) is arranged.
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9. Fire extinguisher as per one of the claims 1 to 8 characterized by the fact that as drive gas CO2, N2, Ar or compressed air are deployed.
10. Fire extinguisher as per one of the claims 1 to 9 characterized by the fact that the operating pressure of the drive gas is 16 bar.
Dated this 11th day of August, 2006

HIRAL CHANDRAKANT JOSHI
AGENT FOR
MINIMAX MOBILE SERVICES GMBH & CO. KG
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ABSTRACT
The invention relates to a fine spray fire extinguisher for extinguishing glowing and fluid materials, preferably with an extinguishing medium tank volume consisting of the extinguishing medium tank (1), the watery extinguishing medium (3), the valve (5), the extinguishing medium piping (6) and the extinguishing jet (7), wherein a fine spray jet (7) as extinguishing jet and a tank for pressure gas (2) on or in the extinguishing medium tank (1).
The fire extinguisher has the advantage that with the low use of water fires can be extinguished fast and in flexible manner.
To,
The Controller of Patents
The Patent Office
Mumbai.
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Documents:

1281-MUM-2006-ABSTRACT(14-8-2006).pdf

1281-MUM-2006-ABSTRACT(5-10-2009).pdf

1281-MUM-2006-ABSTRACT(AMENDED)-(5-10-2009).pdf

1281-MUM-2006-ABSTRACT(GRANTED)-(15-9-2011).pdf

1281-mum-2006-abstract.doc

1281-mum-2006-abstract.pdf

1281-MUM-2006-CANCELLED PAGES(23-6-2011).pdf

1281-MUM-2006-CLAIMS(AMENDED)-(2-3-2010).pdf

1281-MUM-2006-CLAIMS(GRANTED)-(15-9-2011).pdf

1281-mum-2006-claims.doc

1281-mum-2006-claims.pdf

1281-mum-2006-correspondence received.pdf

1281-MUM-2006-CORRESPONDENCE(17-9-2010).pdf

1281-MUM-2006-CORRESPONDENCE(2-3-2010).pdf

1281-MUM-2006-CORRESPONDENCE(23-6-2011).pdf

1281-MUM-2006-CORRESPONDENCE(IPO)-(15-9-2011).pdf

1281-MUM-2006-CORRESPONDENCE-(5-10-2009).pdf

1281-mum-2006-description (complete).pdf

1281-MUM-2006-DESCRIPTION(GRANTED)-(15-9-2011).pdf

1281-MUM-2006-DRAWING(GRANTED)-(15-9-2011).pdf

1281-mum-2006-drawings.pdf

1281-MUM-2006-FORM 1(14-8-2006).pdf

1281-MUM-2006-FORM 1(5-10-2009)0001.pdf

1281-MUM-2006-FORM 1(6-10-2006).pdf

1281-MUM-2006-FORM 18(14-8-2006).pdf

1281-MUM-2006-FORM 2(GRANTED)-(15-9-2011).pdf

1281-MUM-2006-FORM 2(TITLE PAGE)-(14-8-2006).pdf

1281-MUM-2006-FORM 2(TITLE PAGE)-(5-10-2009).pdf

1281-MUM-2006-FORM 2(TITLE PAGE)-(GRANTED)-(15-9-2011).pdf

1281-MUM-2006-FORM 26(2-3-2010).pdf

1281-MUM-2006-FORM 26(23-6-2011).pdf

1281-MUM-2006-FORM 3(14-8-2006).pdf

1281-MUM-2006-FORM 3(2-3-2010).pdf

1281-MUM-2006-FORM 3(23-6-2011).pdf

1281-MUM-2006-FORM 3(5-10-2009)0001.pdf

1281-MUM-2006-FORM 5(14-8-2006).pdf

1281-MUM-2006-FORM 5(5-10-2009)0001.pdf

1281-mum-2006-form-1.pdf

1281-mum-2006-form-2.doc

1281-mum-2006-form-2.pdf

1281-mum-2006-form-3.pdf

1281-mum-2006-form-5.pdf

1281-MUM-2006-GENERAL POWER OF ATTORNEY(5-10-2009).pdf

1281-MUM-2006-GENERAL POWER OF ATTORNEY-(5-10-2009).pdf

1281-MUM-2006-MARKED COPY(2-3-2010).pdf

1281-MUM-2006-MARKED COPY(23-6-2011).pdf

1281-MUM-2006-OTHER DOCUMENT(2-3-2010).pdf

1281-MUM-2006-PETITION UNDER RULE 137(2-3-2010).pdf

1281-MUM-2006-PETITION UNDER RULE 137(23-6-2011).pdf

1281-MUM-2006-REPLY TO EXAMINATION REPORT(2-3-2010).pdf

1281-MUM-2006-REPLY TO EXAMINATION REPORT(5-10-2009)0001.pdf

1281-MUM-2006-REPLY TO HEARING(23-6-2011).pdf

1281-MUM-2006-SPECIFICATION(AMENDED)-(17-9-2010).pdf

1281-MUM-2006-SPECIFICATION(AMENDED)-(21-6-2011).pdf

1281-MUM-2006-SPECIFICATION(AMENDED)-(23-6-2011).pdf

1281-MUM-2006-SPECIFICATION(AMENDED)-(5-10-2009).pdf


Patent Number 248967
Indian Patent Application Number 1281/MUM/2006
PG Journal Number 38/2011
Publication Date 23-Sep-2011
Grant Date 15-Sep-2011
Date of Filing 14-Aug-2006
Name of Patentee MINIMAX MOBILE SERVICES GMBH & CO., KG.
Applicant Address MINIMAXSTRASSE 1, D-72574 BAD URACH,
Inventors:
# Inventor's Name Inventor's Address
1 WOLF-THOMAS JATZLAFF ALSTERSTIEG 1 23863 KAYHUDE
2 FRIED SCHUTZE BUCHERWEG 16 72574 BAD URACH
PCT International Classification Number A62C13/66
PCT International Application Number N/A
PCT International Filing date
PCT Conventions:
# PCT Application Number Date of Convention Priority Country
1 10 2005040708.0 2005-08-27 Germany