|Title of Invention||
AN IRON BOX WORKING WITH LPG
|Abstract||Due to Gas leakage possibility to burn. Before lights the box it is needed to check up the plastic pipes whether it is damaged, While lights up the box on position immediately light the lighter other wise there will be a danger by much gas release. After lighting the box we may see through the glass whether it's burning. By any reasons if burning is stopped off the box and lit it again. There is possibility damage to the plastic pipe near the regulator or near controller. Pipe to be changed an every 6-month period. Pipe should fixed lightly to the box and regulator for not leakage it works for 24 hours. After using the gas box we should off the button near the regulator. The controller or button should be stopped immediate after dressing clothes. Otherwise we may face my danger. There will be a plastic pipe near the controller should be fixed tightly for avoids leakage.|
Ironing or smoothing is the work of using a heated tool to remove wrinkles from washed clothes. The common tools for this purpose are called "irons', though modern designs are no longer made of iron.
Ironing works by loosening the bonds between the long-chain polymer molecules in the fibres of the material. While the molecules are hot, the fibres are straightened by the weight of the iron, and they hold their new shape as they cool. Some fabrics, such as cotton, require the addition of water to loosen the intermolecular bonds. Many modern fabrics (developed in or after the mid-twentieth century) are advertised as needing little or no ironing. Ironing may also be used as a germ/parasite killing hygienic operation. Pressing the clothes is called ironing. Ironing or smoothing is the work of using a heated tool to remove wrinkles from washed clothes. The common tools for this purpose are called irons. Thus the process is given the name of ironing.
Pressing Machines Clothes is a process of ironing was first introduced in China. Metal pans filled with charcoal were used for smoothing fabrics in China in the 1st century BC. From the 17th century, sadirons or sad irons began to be used. They were thick slabs of cast iron, delta-shaped and with a handle, heated in a fire. A later design consisted of an iron box, which could be filled with hot coals, which had to be periodically aerated by attaching a bellows. This type was on sale in the USA until at least 1902. Due to the emergence of Electrical power the iron where heated using electricity as the energy source and the electrical power is used to provide the necessary heat through the conducting filament to the metal base. Because of the short circuiting and hazard to handle electrical element, the steam heating pressing iron had been into market, which uses water to generate steam at pressure and the pressurized steam is used to deliver heat to the metal base. The Steam generator is separate device which is mechanically or physically independent of the Iron pressing plate. The Steam Iron too depends on the electrical power for the generation of steam. The steam Iron
later developed with water level gauge indicator and Steam ejector to have smooth ironing. Prior Art:
The first Patent CA205795 in 1920 by BUSKARD SAMUEL G describes the Pressing Iron developed for the Pressing of clothes or fibres. Later several patents have been granted with various technical modifications. For instance, SunBeam Corporation filed many applications based on the said invention. The CA1015652, CA 1009946, CA780209, CA775220, CA773935, CA 765678, CA 723020, CA683333 describes the pressing iron of different configurations. As the advent of the electrical power CA 956567, CA 913520, CA 847655, CA 675006, CA 675005, CA659604, CA 659838 etc are the few of the invention based on the Electric Pressing Iron and their modifications. The CA 759315 describes the steam based pressing iron and the CA 785628 explains the use of water level gauge to indicate the water level. Besides the Patents, the commercial Coal fired iron Boxes in India serves to provide employment for many families. Besides household Iron box are available in the market, some of the public used to give their clothes to the pressing men for efficient pressing as the coal fired pressing are operated at higher temperature and more over due to heavy load of the pressing iron impart better smoothing. The laundry service people also offer to use the coal fired pressing iron because of the independency on electrical power. The Electric powered pressing irons are also been used in most of the laundry services, which have been proved to be costly because it relies on electrical power.
Modern household and commercial irons uses a steam chest to generate steam and the steam is used to heat the metal base for pressing. The water level in the steam chest can be monitored and maintained a cautionary level.
The Machine was given the name Iron or Pressing Machines. Clothes as the earlier machines were made of iron though the modern irons are not made of
iron. Modern machines are of two kinds manual and robotics. Modern irons available for sale to the consumers have some special features. The more expensive the models are the more features they have. Ejection of steam through the clothing during the use of Pressing machines clothes process; water reservoir inside the iron that is used for steam generation, an indicator showing the amount of water left in the reservoir; thermostat ensuring the maintenance of the constant temperature; a temperature control dial showing the range of possible temperatures are some of them. There are Automatic irons available in the market. Automatic Ironing robots like the Siemens AG Dress man have recently appeared in the market. Ironing may also be used as a germ/parasite killing hygienic operation. Ironing works by strengthening the bonds between the long-chain polymer molecules in the fibres of the material. While the molecules are hot, the fibres are straightened by the weight of the iron. They hold their new shape as they cool. Some fabrics, such as cotton, require the addition of water to loosen the intermolecular bonds. Coal fired Pressing Iron:
In earlier days before electricity is been common, coal being available are used as a heating source for the Pressing Iron. Coals are obtained by burning the forest woods and other country woods. This coal being cheap source is been used in pressing iron, which has a hollow metal box with air holes. The coal is filled with an air gap in the said pressing iron and ignited using any hydrocarbon fuel. Once the coal if fired, the heat is dissipated to the metallic base and been used for smooth pressing.
The advantage of such pressing iron is that it is portable, and can be carried anywhere. This advantage provides employment for several families in towns, villages and even cities. In India, Laundry service is offered by many organizations uses coal fired pressing iron because of it cheaper availability. The said pressing iron has the drawback of spread of ignition sparks to the fabrics and also the availability of the coal is limited. More over on
consideration with the air pollution, the coal fired pressing iron had lost
Electric Pressing Iron:
The use of electricity as the source of energy in the pressing iron has made a
remarkable change in the household and commercial pressing iron. The
Electrical energy is used to heat the filament element, which dissipates the
heat energy to the metal base for pressing.
The iron needs an electrical connection for the processing and more over it is
simple. It has the drawback of electrical short circuiting, failure of the heating
element and electrical short in case of leakage. This made it is tedious for the
common public to install proper earthing system and periodical replacement
of the electrical filament.
Steam Pressing Iron:
It is the advance form of electric pressing iron in which the electrical energy is
used to derive pressurized steam in the steam chest and the steam is passed
on to the conducting filament to dissipate heat to the metal base. The steam
iron has some advance features of the indication of water level in the chest,
pressure of steam and control of intensity of the electrical power.
The said steam pressing iron is indirect conversion of the electrical energy to
the steam energy and to deliver to the user. Hence the efficiency of the
available heat energy is low.
The above said drawbacks of the pressing iron are overcome by the present
invention in which similar to the steam pressing iron instead of using the
electrical power for the heat energy, the present invention used LPG as a
source of energy to the pressing iron.
The invention explains the Iron box comprising a metal base that is been
commonly used which should be of high thermal conductivity, commercial
LPG cylinder, a combustion chamber, a connection hose, a regulator for the
controlled LPG supply, a control box to control the energy to the metal base.
Since LPG is the locally available energy source and more over the scarcity
of the coal fuel, environmental air standards limit the use. The LPG has very
high calorific value and power dissipation to the metal base is high compared
to the other commercial Pressing irons.
The invention has following advantages:
Energy Source: High calorific energy source compared to coal and electrical
Flexibility: LPG cylinder with the Pressing Iron are portable
Cost Effective: The cost on basis of the pressing cloth is cheaper compared
to the coal or other fossil fuels, electricity.
Summary of the Invention
The invention can be summarized as an Iron Box (I) made of conductive
metal or of mixed thermally conductive metal composition for pressing cloths
comprising a known metal base (B), a combustion chamber (U), a heat
source using commercial LPG cylinder (L), a connecting hose (H), a regulator
(R) and a control box (C).
The sidewall plate (S) has several holes (O) ranging from 25 to 30 depending
on the length of the metal base (B). The holes (O) are been provided with a
guiding deflector plate to limit the temperature of the flame, which may
necessarily, provides a mean for cooling and exhaust of the burnt LPG fuel.
The invention is clearly explained with the help of the drawings and
description provided below.
The Description has the following figures.
Fig 1: Top and bottom view of the Electric Iron plate with handle and electrical
Fig 2: Complete setup of the invention with LPG cylinder
Fig 3 a: Mixer setup inside control box
Fig 3 b: LPG Fuel regulator
Fig 4: Bottom plate of the said invention with bolt arrangement
Fig 5: Sidewall of the Iron box with holes
Fig 6: Bottom plate and sidewall combination setup with out Flame distributor
Fig 7:Bottom plate and sidewall combination setup with Flame distributor
Detailed description of the Invention:
The Invention of using LPG, as an energy source cannot be applied to the commercial coal fired pressing iron or electrical power steam pressing iron, as the internal of the Iron box using LPG needs internal modifications. The LPG fuel from the commercial LPG cylinder (L) being supplied through the hose (H) at the supply pressure is regulated using a regulator (R). The commercial LPG cylinder is of different capacity ranging from 5 kg to 18 kg. The connecting hose (H) is made of poly Teflon material of higher thermal resistance, to with stand high wear strength and also to prevent leakage. The hose (H) is internally reinforced with steel mesh wires to prevent damage to the said hose. The regulator (R) regulates the flow of the LPG to the mixer (B1) inside the control box (C). It also provides an ON/OFF control for the LPG flow to the mixer (B1) through the knob (K). The control box (C) is also provided with an air hole (A) to provide necessary oxygen supply to support combustion of the LPG inside the Combustion chamber (U). The sidewall (S) of the iron box has several holes (O) to provide necessary cooling in case of excess heat being transferred to the combustion chamber (U) and also means to exhaust the combustion product. The cooling is by natural air-cooling. The base metal plate (B) has the provision of triangular configured nuts (N) to bolt the top plate (T) to the said base with the sidewall (S) in between them to provide the necessary space for the Combustion Chamber (U).
The Iron box (I) is made of the metal base (B) is made of thermally conductive metal alloys preferably bronze. The metal base (B) is of weight ranging from 1 to 1.5 kg based on the dimension of the triangular trimmed metal base. The base plate (B) is provided with triangularly configured nut (N) arrangement to connect the top plate (T) thereby accommodates the combustion chamber (U) with the sidewall (S).
In the combustion chamber the LPG/Air mixture burns continuously and dissipate heat energy to the bottom base plate (B). The LPG/Air mixture flows
through the combustion chamber (C) through a distributor (D) and gets ignited
in the combustion chamber(C).
As soon as the LPG smell is sensed in the vicinity of the combustion chamber
(U), the LPG/Air mixture is ignited using Electronic Igniter or Safety Match
The Iron box of present invention is used in laundry services and as well in
pressing shops. It can also be used for commercial purposes and even for
house hold in which case the LPG used for cooking can be connected to it.
Now the invention can be explained in more detail with reference to the
Figure 1 shows the earlier existing prior art of the Iron pressing using
electrical energy. The system shows the plate being internally fixed with a
heating filament, which is electrically powered (not shown). The Iron shows
the two probes (P) being projected out to connect the two polarity of the
electrical energy of 230 Volts AC supply.
Figure 2 shows the complete setup of the present invention. The setup has
the Iron box (I) configured with all internals and a connection hose (H) and
LPG cylinder (L) with regulator (R). The Handle (E) is used to operate the iron
to the required location of the cloth or fibres. It is rigidly fixed to the Top plate
(T) of the Iron box (I).
Figure 3 a shows the LPG Mixer setup consist of the mixer (B1) provided with
the air holes (A) to mix the LPG fuel with the oxygen for better combustion.
The combined mixture is then passed through a jet (J) into the combustion
chamber (U) (not shown) by the distributor (D) (not shown) in the sidewall (S)
Figure 3 b shows the LPG fuel regulator setup with the knob (K) provided
thereof to switch ON/OFF the LPG supply. The regulator is connected to the
cylinder by the connecting hose (H).
Figure 4 shows the bottom metal plate (B) with the triangular configured nut
(N) arrangement to fix the top plate thereby accommodating the combustion
chamber (U) (not shown).
Figure 5 shows the sidewall (S) of the Iron (I) with the holes (O) in the sidewall. The holes (0) are distributed along the entire sidewall for cooling the hot exhaust gas and also provides a mean for the escape of the exhaust gas. Figure 6 shows the combined setup of the bottom plate (B) and sidewall (S) with the combustion chamber (U).
Figure 7 shows combined setup of the bottom plate (B) and sidewall (S) with the combustion chamber (U). It also shows the provision of distributor (D) provided in the sidewall (S) for the supply of the LPG - oxygen mixture.
(1) An Iron Box made of conductive metal or of mixed thermally conductive metal composition for pressing cloths comprising a known metal base, a combustion chamber, a heat source using commercial LPG cylinder, a Mixer, a connecting hose, a regulator and a control box.
(2) The Iron box as claimed in claim 1 wherein the metal base is made of thermally conductive metal alloys of high thermal conductivity preferably bronze.
(3) The Iron box as claimed in claim 1 wherein the combustion chamber the LPG/Air mixture burns continuously and dissipate heat energy to the bottom base plate.
(4) The Iron box as claimed in claim 1 wherein the commercial LPG cylinder is of different capacity ranging from 5 kg to 18 kg.
(5) The Iron box as claimed in claim 1 wherein the connecting hose is made of poly Teflon material of higher thermal resistance, to with stand high wear strength and also to prevent leakage.
(6) The Iron box as claimed in claim 1 wherein the regulator is used to regulate the flow pressure to the mixer as well as act as an ON/OFF control to the system using the knob.
(7) The Iron box as claimed in claim 1 wherein the control box is provided with an air hole to provide necessary oxygen supply to support combustion of the LPG inside the Combustion chamber.
(8) The Iron box as claimed in claim 1 wherein the Ignition of the LPG/Air mixture is by Electronic Igniter or Safety Match Box.
(9) The Iron box as claimed in claim 1 wherein the holes are been provided in the sidewall with a guiding deflector plate to limit the temperature of the flame, which may necessarily, provides a mean for cooling and exhaust of the burnt LPG fuel.
(10) The Iron box as claimed in claim 1 wherein it is used in laundry service for smoothing of the clothes and pressing/ironing.
(11) The Iron box substantially explained as herein described and exemplified.
Dated 28 March 2007.
The Controller of Patents, The Patent Office, At Chennai.
|Indian Patent Application Number||1785/CHE/2005|
|PG Journal Number||17/2008|
|Date of Filing||06-Dec-2005|
|Name of Patentee||SHRI. THUMMA RAMESH|
|Applicant Address||KHANAPUR(VIIL) NARSAMPET (TAULK) WARANGAL(DIST) 506 132,|
|PCT International Classification Number||D06F 75/02|
|PCT International Application Number||N/A|
|PCT International Filing date|