Preamble to the description
Background
1) Field- The invention relates to a fire extinguisher meant to be used for high storied buildings or
skyscrapers.
2) Prior Art- US Patent No's 8,528,652; 5,590,717; 7,261,165 and 4,285,403 disclose various types
of fire extinguishers
Summary-It is an object of the invention to provide an effective fire extinguisher which can be utilized in
skyscraper which may not be possible to extinguish with conventional extinguishers and difficult to
reach with fire hoses and other conventional methods.
The invention comprises of two units, the capsule and the launcher. The inventions is powered with air
pressure and a spring combination. Both the units are made of suitable materials like iron, steel or the
like.
The capsule is in a shape of a projectile hollow within. The tip of the projectile is made of solder material
which is meant to melt when in contact with a specific temperature or above. The storage is cylindrical
with another cylinder within. Four cylinders laterally cut off are present on the four sides of the primary
storage on the boundary. These cylinders extend to about half of the entire length and are closed from
the side of the projectile tip but open from the bottom. The bottom of the cylinder features a depth in
its center of the inner cylinder. This inner cylinder contains pressurized gas or air. The depth in the
bottom plate is weak and is supposed to rupture on impact with the launcher's push plate. The outer
cylinder contains fire retarding agent and the inner cylinder.
The launcher is made of suitable materials mentioned above and propels the projectile primarily
through air pressure and a part of it through a loaded spring mechanism. The launcher has to be
recharged with air after a specific number of launches. Its reload mechanism comprises of a reload shaft
which charges the spring combination. The launcher is gripped with its handle and in the event of trigger
activation, the spring loaded push plank shoots at high velocity and the center of the plank has a hit
point where it bulges outward is supposed to hit onto the weak bottom of the projectile. On the push
plank are four symmetrically arranged air valve nozzles which coincide with the arrangement of halfcylinders
on the projectile. These nozzles partially enter the vents of the projectile when loaded. Once
the trigger has be activated and the push plank unloaded, the air valves which connect there air tubes
from the pressurized storage on the launcher's end open up to allow a regulated amount of air to be
released into the nozzles and ultimately into the projectile vents. After the launcher has used up its
entire pressurized storage, it has to be refilled again through the air valve on the structure's end before
it can be put to operation again.
The capsule once hit with the push plank releases its air storage for propulsion into the required target
area. The air from the launcher primarily launches the projectile out of the launcher and roughly half
way through to designated area. The projectile storage then propels it all the way across to the target.
Once in contact with fire or high temperature, the solder material tip of the projectile melts releasing
the contents into the fire.
Descriptions
DESCRIPTION OF THE DRAWINGS
The invention can be understood better with reference to the following drawings and description. The
components in the figures arenot necessarily to scale, emphasis instead being placed upon illustrating
the principles of the invention. Moreover, in the figures, like referenced numerals designate
corresponding parts throughout the different views.
Fig. 1 refers to the perspective side-angle view of the launcher unit of the claimed invention.
Fig. 2 depicts the reload mechanism, trigger mechanism and the refill valve of the launcher unit.
Fig. 3 depicts the sectional cutaway view of the launcher unit without the projectile.
Fig. 4 depicts the sectional cutaway view of the launcher unit with the projectile in its launching position
Fig. 5 depicts the front view of the launcher primarily referring to the push plate and air valve nozzles on
the push plate.
Fig. 6 refers to the side view of the projectile.
Fig. 7 refers to the bottom angle view of the projectile showing the rupture point of the internal
cylinder.
Fig. 8 depicts the sectional cutaway of the projectile.
Fig. 9 refers to the bottom view of the projectile.
Fig. 10 refers to the top section of the capsule depicting the capsule heat sensitive trigger structure.
DETAILED DESCRIPTION OF THE INVENTION
According to the illustrated drawing in Fig. 6 & Fig. 7, the projectile body 22 is made of suitable materials
like steel,.iron or the like. The tip 23 of the projectile is made of solder material that will melt when
heated more than its designated melting point. The half cylinders 32 which are laterally present on the
outer body and are symmetrically arranged are closed from the top but are open from the bottom of the
cylinder The vents 33 is the location where the nozzle 12 of the air valve of the push plank in the
launcher would enter partially. The small depth in the center of the projectile 34 is the location where
the bulge 20 of the push plank hits and ruptures it. The internal cylinder of the projectile is depicted in
Fig. 8 and contains a pressurized gas or gases 26. The body of the internal cylinder 25 can be made of
the same material as the outer body 22. The weak spot of the internal cylinder 27 is where the push
plank bulge 20 hits it and ruptures it thereby releasing the pressurized gas. The fire extinguishing agent
24 is stored in the cavity of the outer cylinder and is extremely pressurized.
The launcher is depicted in the drawings from Fig. 1 - Fig. 5 where the body 6 of the launcher unit is
made of commercially viable materials like steel, iron or the like. The separate compartment for storage
12
of pressurized gas or gases 7 has an air valve 5 for refilling the gas on the event of discharge of the
launcher and a barometer 28 shows how much pressure is present in the storage compartment 7.The
reload shaft 29 moves along the reload slit 30 and is reset by the trigger 9. The handle grip 8 is the
location there the entire unit is held by specialized personal.
Fig. 3 & Fig. 4 depict the sectional cutaway perspective of the claimed invention where the projectile is
loaded into the capsule compartment 10 and the nozzles 12 take place behind the vents 33. Once
reloaded, the spring combination 16 becomes charged. The springs are supported by a support rod 17
which also supports the push plank 11. The push plank is responsible for guiding the projectile out of the
launcher and the rupture rod 20 that is present in the center of the plank is supposed to rupture the
structural depth 27 on the projectile. The support rod is kept in its location by its holder 18. The trigger
9 is also connected to four air valves 15 that are present on the air vents 21 of the pressurized storage 7
of the launcher unit by metal chords 19. These valves 15 are connected to flexible tubes 14 and
ultimately onto the tube holder 13 on the push plank 11 which features the nozzles that direct the
pressurized gas into the vents 33 into the projectile. In Fig. 5 the push plank 11 feature a plate 31 which
is supposed to keep the nozzles 12 and the rupture rod 20 onto their respective places.
When is operation, once the projectile is loaded into the capsule compartment 10, the reload shaft is
charged 29, the projectile is ready to be shot onto the designated area. Once the trigger 9 is pulled, the
charged push plank 11 which is attacked to the spring combination 16 is released. This causes the
rupture rod 20 to hit the capsule onto its structure depth 27 causing it to release its contained gas to
dissipate ultimately propelling the projectile forward. Timely, the trigger which is mechanically
connected to the air valves 15 releases a controlled burst of gaseous pressure into the capsule vents 33
at a very high pressure. This causes the projectile to propel forward onto the aimed target. Once
reaching the designated area the solder metal tip 23 melts in contact with high temperature thereby
releasing the agent into the heated area/naked flame or fire. For effectivity there should be multiple
shots into the area for stabilizing the fire to an effective extent.
While various embodiments of the invention have been described, it will be apparent to those of
ordinary skill in the art that many more embodiments and implementations are possible within the
scope of the invention. Accordingly, the invention is not to be restricted except in the light of the
attached claims and their equivalents.
Another aspect is that the size of the entire unit (invention) may vary and is not restricted on the basis
of its measurements and the diagrams depict the unit to fairly accommodate the required and claimed
components.

Claim:-
1. A projectile fire extinguishing device comprising:
a projectile containing the fire retardant agent formed from heat resistant materials with a heat
sensitive trigger on its structure
a projectile launcher containing a pressurized gaseous container meant for propelling the
projectile and a spring loaded mechanism for added propulsion.
2. The fire extinguishing device of claim 1 wherein the projectile is made of heat sensitive
materials.
3. The fire extinguishing device of claim 1 wherein the projectile has an inner container housing
pressurized gas for propulsion.
4. The fire extinguishing device of claim 1 wherein the projectile has multiple exterior structures
open from a single side and utilizes them for propulsion.
5. The fire extinguishing device of claim 1 wherein the projectile contains the fire retarding agent
in liquid or gaseous form.
6. The fire extinguishing device of claim 1 wherein the projectile has a weak inner bulge connecting
the bottom of the main structure to the secondary gaseous container.
7. The fire extinguishing device of claim 1 wherein the secondary storage would release its
contents if stuck upon its trigger with substantial impact.
8. The fire extinguishing device of claim 1 wherein the projectile launcher is made of iron, steel or
the like.
9. The fire extinguishing device of claim 1 wherein the launcher has a rechargeable or replaceable
pressurized gaseous canister for primary propulsion
10. The fire extinguishing device of claim 1 wherein the launcher has a secondary spring- loaded
mechanism and its mechanical reload switch.
11. The fire extinguishing device of claim 1 wherein the spring loaded mechanism and pressurized
mechanism can be simultaneously activated by a gun-like trigger.
12. The fire extinguishing device of claim 1 wherein the gaseous container of the launcher would
release high velocity gaseous pressure upon trigger activation through the designated nozzles
and pipes which would propel the projectile out of the launcher.
13. A fire extinguishing device wherein the projectile has an inbuilt propulsion system.