FORM 2
THE PATENT ACT 1970
&
The Patents Rules, 2003
PROVISIONAL SPECIFICATION (See section 10 and rule 13)
i
1. TITLE OF THE INVENTION:
"Hybrid Fire Fighting Apparatus And Method Of Operating The Same"
APPLICANT:
Name Nationality Address
1. Shiv Kumar Indian National 36, Prime city, Sukhliya, Indore.
9589169067
kumar.shiv2793@gmail.com
2. Syed Faizan Ali Indian National
Garad Mohalla, AB Rd, Biaora.
7869573753 syedfts@gmail.com
3. Shailendra Nagar Indian National 16, Gurukripa Bhavan, Apna Nagar,
Biaora Rajgarh.. 9981766980
shailendranagar80@gmail.com

Field of invention
. The present invention relates to a hybrid firefighting apparatus, and more particularly, it relates to a firefighting apparatus capable of fighting fire using high quality standard thick foam system and simultaneously providing radiation protection and heat attenuation.
Background of the invention
In oil and gas industries, gas leaks from the valves, flanges, equipments and instruments in live process units operating with high pressures, oil leakage and spillage in process unit and storage tanks are under high risk of fire hazard and more prone to vapor cloud explosion and liquid pool fire respectively. A deadly toxic gas like Carbon Monoxide (CO) and hydrogen sulfide(H2S) is having no smell(CO) and accumulates on the ground level may dangerous to plant operating personnel. Volatile Organic Compounds (VOC) from hydrocarbon storage tanks are too accountable for the fire hazard if improper sealing system is provided for the tank roofs.
In such units emergency response team with firefighting equipment is always stand by. But during summer months with high heat index, in case of any major fire, combating fire is a big challenge. In case of any major gas leaks from catastrophic failure of the equipment or pipelineswhich may lead to disaster. A well designed process plant equipped with safety system like pressure relief devices, flare stacks for venting waste gases. Poor monitoring of gas leaks and poor maintenance of the equipment inspections in process area can lead to uncontrolled release of explosive gases like methane, ethane etc. The release of a flammable material may result in several disastrous scenarios: a fireball, pool fire, flash fire, flare or jet fire,

and an unconfined vapor cloud explosion. Two of the main inherent hazards associated with fires are thermal radiation and smoke.
Fire and explosion accidents and toxic gas release are of major concern to the owners and operators of refineries and petrochemical, gas processing, terminal, and offshore facilities. Statistics have shown that the majority of monetary loss in these types of complexes is due to fire and explosion. According to statistics, 77 percent of the monetary loss in refinery and petrochemical complexes is due to fire and explosion. The breakout of accidents due to fire and explosion is 65 percent vessel (container) and vapor cloud explosion and 35 percent fire. The causes of these accidents are mostly attributed to mechanical issues, process upset, and operator error.
Accordingly, in order to have control, over such type of hazards/disasters there exists a need to provide single hybrid equipment capable of controlling both breakout of fire and release of toxic gases immediately and effectively.
The present invention provides following advantages:
1. Can perform firefighting and exposure protection and dispersion of toxic gases simultaneously.
2. Least water required to extinguish fires.
3. Formation of water mist without external expellant.
4. Capable of extinguishing all types of fire i.e. A,B and C class fire.
Summary of the invention:
Accordingly, the present invention provides a hybrid firefighting apparatus having both a water mist and foam system comprising a chasis having a carriage at the rear end for knuckle boom, foam tank, and an engine for hydraulic pump.A hydraulic boom mounted over the carriage part of the vehicle and provided

with the rotational movement of 360θ, remotely controlled by the fire personnel from the driver's cabin;. A multipurpose hollow cylindrical nozzle having a high volume axial air fan fixed at the rear end of the cylinder which acts as a ventilation fan and also to push water mist droplets to the maximum distance. A spiral water pipe having plurality of water mist nozzles installed at a strategic angle. A fog branch for producing a water fog along with the water mist. A foam monitor mounted over the cylinder for foam applications. A plurality of flood lights mounted on either side of the. cylinder for proper visibility and illumination. A camera installed o the cylinder for proper visibility while operating cylinder for firefighting from the driver's cabin itself. A foam tank having a capacity of 400-500 liters. It is provided with the filling hole for filling of foam concentrate from external container; and a piping system from fire hydrant to the fire hydrant connection, from fire hydrant connection to the hydraulic boom, from hydraulic boom to the hose reel drum, from boom to the cylinder structure and to the water line inside cylindrical structure.
Brief description of the drawing
Figure 1 shows a side view of a hybrid firefighting apparatus, in accordance with the present invention;
Figure 2 shows a front view of a hybrid firefighting apparatus, in accordance with the present invention;
Figure 3 shows a top view of a hybrid firefighting apparatus, in accordance with the present invention; and
Figure 4 shows a perspective view of a hybrid firefighting apparatus, in accordance with the present invention.
Detailed description of the invention

The foregoing objects of the present invention are accomplished and the problems and shortcomings associated with the prior art, techniques and approaches are overcome by the present invention as described below in the preferred embodiments.
The invention is basically a hybrid appliance capable of fighting fire using high quality standard thick foam system and simultaneously providing radiation protection and heat attenuation. So this is a combination of water mist cannon system and foam system. These systems are installed in such a way that, foam system and water mist cannon system (both having rotational movement of 270e horizontal and 180e vertical, which are electrically operated throw remote controller) are mounted over a hydraulically operated boom (having flood light for better visibility) capable of reaching considerable height (of 7 meter or can vary as per requirement) with ease in movement and quick working. In addition to that, a foam tank of suitable tank capacity (as per demand) along with 2 no's fire hydrant connection and typical arrangements of piping system (or network) with foam inductor enabling it's functionality for different-applications, is provided. This combination of systems is then mounted over the 4-wheel vehicle capable of bearing the load and reaching the site quickly. This appliance can perform following functions:
1. Fire control and extinguishment by smothering effect due to thick layer of foam generated by foam system over the liquid (fuel) under fire.
2. Water Mist so produced by the system achieves fire extinguishment, radiation protection and heat attenuation through a number of processes:
• Flame quenching by cooling of burning materials and potential fuel sources to below auto-ignition temperatures.

• Inserting as a result of vapor production (which results from the
collision of water mist particle with flame) which excludes oxygen
from the flame front. This generation of vapor dilutes the oxygen
percentage in the air and combats the fire.
• Blocking radiative heat between the fire and adjoining
combustibles, nearby process units/tanks/equipments/structures and
even firefighters thus slowing down propagation of the fire, heat
effect to fire personnel and minimizing the chances of secondary
fire.
3. Water mist so generated can also be used for the dilution of toxic gases released from the process plant and dispersion of smoke and other harmful gases developed as a result of explosion
4. It is also useful in ventilation of smoke and dust as in a fire situation smoke becomes a reason for fatality.
5. Small vehicles allow it a good maneuverability and the outreach of
boom gives considerable height to the nozzles for effective and
efficient firefighting.
Refereeing now to figures 1 to 4, itshowsdifferent views of a hybrid firefighting apparatus (100) in accordance with the present invention.
1. Chassis:
This is basically a 4-wheeled vehicle having single cabin, provided with carriage at the back. Knuckle boom, Foam Tank and an Engine for hydraulic pump are installed over the carriage. A multipurpose nozzle is mounted over the boom. Engine of the chassis is connected to a PTO which is a gearbox that has 2 outputs, one connected to the differential section of the vehicle to drive the vehicle whereas other output is used for the operation of pump/etc. We are utilizing this second output to run the hydraulic pump for the operation of hydraulic boom. Hence, no external engine is required for the operation of the boom. The cabin is provided with the seating arrangement for 2 persons; one driver and other lead

fireman/officer who can operate the whole equipment from a remote integrated with all functions on it.Remote for the equipment will have access to operation of knuckle boom movement, nozzle movement, foam mixture control, water inlet valves, engine on/off, Lights, etc.
2. Hydraulic Boom:
Hydraulic boom is mounted over the carriage part of the vehicle, provided with the rotational movement of 360θ, remotely controlled by the fire, personnel from the driver's cabin. This boom can be extended up to several meters can move up, down, left and right giving access for fire-fighting in all directions.A bracket system is provided at the end point of the boom for the installation of nozzle. This bracket system can have the rotational movement of 180θ horizontally and 60θ vertically. This operation is also remote controlled.
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3. Multipurpose Nozzle:
This is a hollow cylindrical nozzle which has following components:
a. High volume axial air fan fixed at the rear of cylinder:
An axial fan, driven by a hydraulic motor pump which is connected to external engine (attached to another hydraulic pump). This axial fan acts as a ventilation fan and also to push water mist droplets to maximum distance.
b. Spiral water pipe:
This spiral pipe comprises of 300-400 water mist nozzles, installed at a strategic angle. These nozzles will develop water mist and which is further assisted by the air pressure provided from the blower at the back..
c. Fog branch:
This fog branch will produce water fog which, along with the water mist, assist in fire-fighting, ensured exposure protection, attenuate heat, disperse toxic gases and

dilute the effect of smoke and other harmful gases resulting from fire and explosion.
d. Foam Monitor:
This foam monitor is mounted over the cylinder for foam application over liquid to extinguish fire through its blanketing effect along with cooling effect.
e. Flood Lights:
Emergencies can broke out any time. So, for firefighting and other operations in dark or night, it is necessary to have proper visibility and illumination. To overcome such situations this appliance is installed with the flood lights, which is mounted on either side of the cylinder.
f. Camera:
This appliance is provided with the high quality camera installed on the cylinder which provides proper visibility while operating cylinder for firefighting from the driver's cabin only.This cylindrical structure so mounted over a bracket system that it enables movement of nozzle in both horizontal and vertical direction respectively.
4. Foam Tank:
It has a capacity of 400-500 liters. It is provided with the filling hole for filling of foam concentrate from external container. Outlet of the tank is connected to the foam proportionate system having electronically operated valve, controlling/limiting the supply of foam concentrate to the main lines in a proportion that is required for making finished foam. This foam system can also be controlled remotely from cabin by the fireman/officer.
5. Piping system:
a. From Fire Hydrant/Fire tender to Vehicle's fire hydrant connection:

Vehicle is designed in such a way that water has to be taken from hydrant post/Fire tender to the main water line of the vehicle going to the nozzle.
b. Vehicle's fire hydrant connection line to hydraulic boom:
Inlet of Fire Hydrant connection line comprises of male coupling, after which an NRV is placed to protect the back flow of water due to back pressure. This piping network is then connected to the foam proportionate system (which is connected to the foam tank via pick-up tube) that sup-plies foam solution into the main line as per application and requirement. This foam proportionate system is provided with the electronically operated valve which enables supply of foam concentrate as per requirement. This main line reaches to the hydraulic boom which has a hose reel drum.
c. Hose-reel Drum:
This hose reel drum is self retractable hose reels drum which opens up to an extent where hydraulic boom extends and when the boom closes, this hose-reel drum automatically winds up.From this hose reel drum, the hose becomes hard rubber single wire braided type up to the vertical height of the boom.
d. From Boom to the cylinder structure:
From the vertical boom, the water line comprises of firefighting hose connecting main line to the system installed on the boom, where it further divides in to two subsidiary lines, the foam monitor line and cylinder line respectively.The foam monitor water line has an electronic valve that can be operated by remote.
e. Water line inside cylindrical structure:
After entering the cylinder, it further breaches to two parts. First part is connected to fog branch while second part to the spiral water pipe. Both the part is incorporated with electronically operated control valve which can be operated via remote for different applications.

Operational procedure:
The vehicle is mounted with a boom on the carriage just behind the cabin. Just behind the boom structure is the engine-hydraulic-pump system which drives the high volume axial fan. This high volume axial fan is mounted with the cylindrical structure of the water cannon which is rigidly fixed on the bracket mounted on the end point of the boom. Behind the engine is the left out space for foam tank ranging from 400-600 litres as per requirement. The operation of this equipment takes place in the following steps:
1. Initially the boom structure rests on the carriage. This boom is hydraulically operated by the PTO driven hydraulic pump.
2. As soon as the fire department gets a fire call, the vehicle quickly turns out to the fire site or toxic release site.
3. The vehicle easily swifts though the roads and reaches to the spot.
4. The fireman sitting along with the driver operates the boom through a remote, setting the outriggers for boom balancing and rotation for 360 degrees and brings the boom to the front of the vehicle.
5. Meanwhile the driver fixes the hose from the hydrant to inlet of the main pipe system.
6. As soon as the boom and the nozzle bracket is fixed at the desired angle the axial fan, water nozzle starts working through the action of remote buttons. This allows a high quality water mist to reach at the desired location.
7. As this boom and bracket can be remotely operated, the driver and fireman can easily seat-ed inside the vehicle to protect themselves from high heat environment.
8. Vehicle is filled with foam tank that also allows the liquid fires to be attacked through the foam nozzle when needed by the action of remote control.

This project is a combination of a water mist nozzle mounted over a 4-wheel small struck that has a hydraulic boom mounted at the carriage portion of the vehicle. Over that boom is the nozzle fitted in such a way that it provides high flow of water mist that helps in -
2. Cooling of the burning material.
3. Cuts-off the oxygen supply as the water mist particles are converted in steam and makes a blanket that immediately knock-down the fire.
4. It also dilutes the air contamination that may be related to flammability, pollutants, hazardous chemical, toxic fumes, etc.
5. It is also useful in ventilation of smoke and dust as in a fire
situation smoke becomes a reason for fatality.
6. Small vehicles allows it a good manoeuvrability and the boom gives
nozzle a considerable height that gives access to the nozzle where its not
easy to reach.
7. This nozzle also fitted with another nozzle over it which is a foam
nozzle, hence it also provides better extinguishing capabilities for class B
fires i.e. liquid fires.
Numbering Index:
1. Multi Purpose Nozzle
2. Hydraulically Driven Fan
3. Vertical and Horizontal Movement Bracket
4. Water Line With Retractable Hose Reel Drum
5. Hydraulic Boom
6. Foam Tank With Electronic Foam Injection System; Compartment
7. External Engine Compartment for Hydraulic Pump
8. Electronic System for Remote Operation
9. Chassis

10. Foam Nozzle
11. Spiral Water Mist Nozzle System

12. Fog Nozzle
The said invention may also be used:
1. For extraction and dilution of dust particles in the atmosphere.
2. For pollution control.
3. In construction industries and construction site.
4. In Agro (agriculture) related work, like spray of pesticides etc.
The foregoing descriptions of specific embodiments of the present invention have been presented for purposes of illustration and description. They are not intended to be exhaustive or to limit the present invention to the precise forms disclosed, and obviously many modifications and variations are possible in light of the above teaching.
The embodiments were chosen and described in order to best explain the principles of the present invention and its practical application, to thereby enable others skilled in the art to best utilize the present invention and various embodiments with various modifications as are suited to the particular use contemplated. It is understood that various omission and substitutions of equivalents are contemplated as circumstance may suggest or render expedient, but such are intended to cover the application or implementation without departing from the spirit or scope of the present invention.

We Claim:
1. A hybrid firefighting apparatus having both a water mist and foam system
comprising:
a chasis having a carriage at the rear end for knuckle boom, foam tank, and an engine for hydraulic pump;
a hydraulic boom mounted over the carriage part of the vehicle and provided with the rotational movement of 360θ, remotely controlled by the fire personnel from the driver's cabin;
a multipurpose hollow cylindrical nozzle having;
a high volume axial air fan fixed at the rear end of the cylinder which acts as a ventilation fan and also to push water mist droplets to the maximum distance;
a spiral water pipe having plurality of water mist nozzles installed at a strategic angle;
a fog branch for producing a water fog along with the water mist;
a foam monitor mounted over the cylinder for foam applications;
a plurality of flood lights mounted on either side of the cylinder for proper visibility and illumination;
a camera installed o the cylinder for proper visibility while operating cylinder for firefighting from the driver's cabin itself;
a foam tank having a capacity of 400-500 liters. It is provided with the filling hole for filling of foam concentrate from external container; and
a piping system from fire hydrant to the fire hydrant connection, from fire hydrant connection to the hydraulic boom, from hydraulic boom to the hose reel drum, from boom to the cylinder structure and to the water line inside cylindrical structure.
2. A method of operation comprising the steps of;

Initially the boom structure rests on the carriage. This boom is hydraulically operated by the PTO driven hydraulic pump.
- As soon as the fire department gets a fire call, the vehicle
quickly turns out to the fire site or toxic release site.
The vehicle easily swifts though the roads and reaches to the spot.
- The fireman sitting along with the driver operates the
boom through a remote, setting the outriggers for boom
balancing and rotation for 360 degrees and brings the
boom to the front of the vehicle.
Meanwhile the driver fixes the hose from the hydrant to
inlet of the main pipe system.
As soon as the boom and the nozzle bracket is fixed at the
desired angle the axial fan, water nozzle starts working
through the action of remote buttons. This allows a high
quality water mist to reach at the desired location.
As this boom and bracket can be remotely operated, the
driver and fireman can easily seat-ed inside the vehicle to
protect themselves from high heat environment.
Vehicle is filled with foam tank that also allows the liquid
fires to be attacked through the foam nozzle when needed
by the action of remote control.