Title of Invention	A UNIFIED PORTABLE NITROGEN GENERATING AND DISTRIBUTION STATION
Abstract	Unified Portable Nitrogen Generating and Distribution Station comprises of four mobile trolleys wherein from the atmospheric air,high pressured Nitrogen Gas is generated and thereafter it is passed over to the Nitrogen Gas Storage Unit wherein to maintain the moisture level,the Nitrogen Gas is passed through a high pressure dryer.The dried nitrogen is then stored into the high pressure storage cylinders for necessary dispensation through a battery opeated transport unit directly at the users" point of use.

Title of Invention

A UNIFIED PORTABLE NITROGEN GENERATING AND DISTRIBUTION STATION

Abstract

Unified Portable Nitrogen Generating and Distribution Station comprises of four mobile trolleys wherein from the atmospheric air,high pressured Nitrogen Gas is generated and thereafter it is passed over to the Nitrogen Gas Storage Unit wherein to maintain the moisture level,the Nitrogen Gas is passed through a high pressure dryer.The dried nitrogen is then stored into the high pressure storage cylinders for necessary dispensation through a battery opeated transport unit directly at the users" point of use.

Full Text	FORM 2 THE PATENT ACT 1970 (39 OF 1970) & The Patents Rules, 2003 PROVISIONAL / COMPLETE SPECIFICATION (See Section 10 and rule 13) 1. TITLE OF THE INVENTIONUnified Portable Nitrogen Generating and Distribution Station. 2. APPLICANT (S)(a) Name: KIRLOSKAR PNEUMATIC CO. LTD., (b) Nationality: A Company incorporated under the Companies Act, 1956, India (c) Address: Hadapsar Industrial Estate, Pune 411 013, India. 3. PREAMBLE TO THE DESCRIPTION PROVISIONALThe following specification describes the invention COMPLETEThe following specification particularly describes the invention and the manner in which it is to be performed. 4. DESCRIPTION (Description shall start from next page) 5. CLAIMS (not applicable for provisional specification. Claims should start with the preamble - "I/We claim" on separate page) 6. DATE AND SIGNATURE (to be given at the end of last page of specification) 7. ABSTRACT OF THE INVENTION (to be given along with complete specification on separate page) Note:-• Repeat boxes in case of more than one entry.• To be signed by the applicant(s) or by authorized registered patent agent.• Name of the applicant should be given in full, family name in the beginning.• Complete address of the applicant should be given stating the postal index no./code, state and country.• Strike out the column which is/are not applicable. FIELD OF INVENTION The present invention relates to combination of trolleys to carry unified Nitrogen Gas Generating and Distribution Station, which is portable and having application in space and aerospace industry such as inflation of aircraft tires, charging of landing gear struts and actuators, missile launcher charging, blanketing of fuel tank in case a missile hits fuel tank. BACKGROUND OF THE INVENTION At present, the space and aerospace industry is using the nitrogen gas available in high pressure cylinders. However, they are facing many difficulties in availability of high quality Nitrogen, effective supply system, storage facilities, checking of quality of Nitrogen at the users' site, mobility and portability etc. To overcome these disadvantages particularly for space and aerospace requirements where mobility, portability and space are the main constraints, there was a need to have a technology and /or combination of suited technology for generation of nitrogen gas of required purity and grade, present invention provides for a trolley comprising of Nitrogen Gas Generation unit, Storage unit and transport vehicle. At present, generally production of gaseous nitrogen at the site of user can be divided into two broad categories. First method is to generate gaseous nitrogen from liquid nitrogen stored in a cryogenic-containers by controlled evaporation of liquid at the users' site. In this method liquid nitrogen is produced at the large Unitary plants. This liquid nitrogen is thereafter stored and purchased in relatively smaller cryogenic containers and transported to the users site. 1 At the User's site, the liquid nitrogen is evaporated in controlled heat exchanger to gaseous form as and when required and further compressed to required pressure and stored in the standard cylinders. This method is having many disadvantages such as, heavy "boil off i.e. the liquid nitrogen is stored at cryogenic temperature during the storage, heat from the atmosphere is transferred to the nitrogen liquid even though the vessel is thermally insulated. This heat evaporates some amount of liquid nitrogen into gaseous form arid relieved through pressure relieving devices provided on the vessel in the atmosphere. This is a continuous process. Moreover, at the time of transfer of liquid nitrogen for evaporation in controlled heat exchanger, there is a leakage through the joints which is called "transfer loss". In addition, the cost of liquid nitrogen per kg. is comparatively higher than generation of nitrogen gas at the users' site. Further, this process involves operational hazards due to the generation and storage of liquid nitrogen at a very low temperature (cryogenic temperature). It is pertinent to note here that the nitrogen gas is also available in low pressure commercial nitrogen cylinders for direct use at the site. The said gas is however, lacks in requisite purity, cleanliness and moisture contents and there are no means available to achieve requisite quality. In addition, these cylinders are available only at few select locations. The second method is to generate gaseous nitrogen from the atmosphere. This methodology is based on the principle of separating components of atmospheric air into nitrogen and oxygen. There are two principal sub methods of this type viz. Pressure Swing Adsorption techniques known as PSA technology and Membrane Technology. 2 PSA Technology: PSA technology is used to effect the separation of gaseous components from the atmosphere. This technology consists of twin vessel charged with special molecular sieve in a form of chemical granules called adsorbent. These vessels do adsorption of oxygen bearing molecules and regeneration of adsorbent on an alternate basis and generate gas rich of nitrogen. This method is also having certain disadvantages which include: 1. inconsistent nitrogen purity and moisture content due to cyclical operation time and properties of the adsorbent at near saturation point. 2. relatively larger plant resulting in problems of portability or manageability at the users' site and heavy maintenance attached thereto. Membrane Technology: The membrane technology consists of passing oil free air through hollow membrane fiber walls. The gases like oxygen, carbon dioxide, water vapor permeate out of the wall of the fiber and are vented cut. Nitrogen rich gas with requisite purity comes out of membrane module. This gas is having a low dew point of minus 65 Deg C which is suitable for most of commercial applications. SUMMARY OF THE INVENTION 3 As stated in the background herein above, to overcome various disadvantages particularly for space and aerospace requirements where mobility, portability and space are the main constraints, there was a need to have a technology and /or combination of suited technology for generation of nitrogen gas of required purity and grade. The present invention provides for at least three moveable and relatively portable independent units possibly in form of trolleys. These units comprises of a Power generating unit, Nitrogen Gas Generating Unit, Nitrogen Gas Storage Unit, Nitrogen Gas transport Unit. These trolleys are movable as well as relatively portable at possibly all the users' site. Now, we will summarize the invention comprises of these three Units as under: The Nitrogen Gas Generating Unit comprises mainly of a compressor which receives power form a power generation unit The atmospheric air is filtered and then compressed into two stages by a water-cooled, non-lubricated compressor. The Air is then passed through the membrane unit to separate Nitrogen from Air and boosted to the pressure of 350 Bar and dried through high pressure drier. The generated high pressured Nitrogen Gas thereafter passed over to the Nitrogen Gas Storage Unit wherein to maintain the moisture level, the Nitrogen Gas is passed through a high pressure dryer fitted with online Dew Point meter to monitor the moisture level. The dried nitrogen is "then stored into the high pressure storage cylinders for necessary dispensation. The Final unit is Nitrogen Gas Transport Unit which carries cylinders full of high purity dry nitrogen. This unit is in a form of battery operated electric Unit which can move upto the Aircraft for dispensation of high pressured pure nitrogen gas through cylinders. Thus the whole process i.e. from the nitrogen gas generation, its storage and finally its dispensation at the place where the recipient is United is being done with relatively compressed moveable and portable units. As explained at the outset, 4 such mobility and portability are very crucial for fighter Aircrafts united at Air Bases on hilly areas as well as the Army united at hilly, forest or deserted areas where free movement of vehicles are not easily possible. However, all the three units are operating independently but in conjunction and to achieve the objective of the invention, it is necessary to operate all the three units in sequence. The embodiment of the invention is described properly with reference to the accompanying drawings. Various drawings are referring various Units as explained in brief above: ♦ Fig 1 - A Power Generating Unit. ♦ Fig 2 - Schematic view of Nitrogen Generating Unit. ♦ Fig 2A - Sectional views of Nitrogen Generating-Unit. ♦ Fig 3 - Schematic view of Nitrogen Storage Unit. ♦ Fig 3A - Sectional views of Nitrogen Storage Unit. ♦ Fig 4 - Schematic view of Nitrogen Gas Transport Unit. ♦ Fig 4A - Sectional views of Nitrogen Gas Transport Unit. ♦ Fig 5 - Legends DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT Please refer to Fig 1 which is portable power generating equipment capable of giving 415VAC, 3ph, 50 hz power supply. The principal function of the power unit is to provide electrical power to Nitrogen Generating Unit and Nitrogen Storage Unit. Please refer to Fig 2 which shows a process of generation of nitrogen gas out of atmospheric air by the Nitrogen Gas Generation Unit. This Unit is the main part of the whole invention. The Nitrogen Gas Generating Unit 5 comprises of a power unit (power generator) and a gas generation unit mounted on a moveable and portable trolley and in addition it also consists of the following, • A non-lubricated Air Compressor with electric motor. • Air cooled package for cooling of Compressed Air. • Storage Receiver for Compressed Air. • Membrane Unit for separating Nitrogen from Air. • Nitrogen Storage vessel. • Pneumatically actuated booster - stage 1 • Low pressure Intermediate storage vessel for Nitrogen • Pneumatically actuated booster - stage 2 • 3 x 401tr High Pressure Cylinder • Dispensing Connection for 150 Bar and 350 bar disposal of Nitrogen • Control Valves, Pressure regulators and safety relief Valves. • Gauge / instrument panel to monitor and control operation • Oxygen analyzer meter to monitor purity of nitrogen • Canopy for protection of equipment against rain, snow and sunlight. • A High pressure dryer with Dew Point Meter. All the aforesaid independent units are assembled and assimilated in one process unit so as to mount the same on a moveable trolley. All the above independent units are operated to generate the high pressured nitrogen gas of high grade purity. The whole process of gas generation can be described as follows. The Air from the atmosphere is filtered and then compressed in two stages by a water-cooled, non-lubricated compressor. The pressurized air is cooled in the cooler package and then stored in a receiver. The Air is then passed through the membrane unit to separate Nitrogen from Air. The Nitrogen gas generated out of membrane unit is boosted in two 6 stages to achieve the final pressure of 350 Bar. The requisite pressurized Nitrogen gas is available at the dispensing connection. This whole Unit can be transported or air lifted to the desired site. Now please refer to Fig 3 which is a schematic view of the Nitrogen Gas Storage Unit which receives the high pressure nitrogen gas generated by the generation unit through its dispensing connection. The Nitrogen Gas Storage Unit comprises of following independent units mounted on a moveable and possibly portable trolley and also consists of the following. • High pressure storage cylinders in groups. • Manifold high pressure Nitrogen cylinders. • Relief valves. • Distribution valves, dispensing connections mounted on a penal. • High pressure dryer. • Pressure regulators and control valves • Gauge/control panel for monitoring of nitrogen stream • Dew point meter for on line monitoring of nitrogen flow. • Canopy for weather protection The nitrogen gas coming out of the generator unit has the requisite purity from oxygen content point of view. However, to continuously achieve the desired quality of nitrogen gas in terms of moisture level, the nitrogen gas is passed through a high pressure dryer fitted with online Dew Point meter to remove the moisture to the lowest level and to monitor the moisture level in the nitrogen gas. The dried nitrogen is then charged into the high pressure storage cylinders. The nitrogen gas thereafter can be dispensed through distribution valves, mounted on a penal at preset desired pressure. This whole Unit can also be transported or air lifted to the desired site. 7 Further, please see Fig 4 which is an unit required to transport the high purity dry nitrogen available in cylinders to the users' site. This Nitrogen Transport Unit may be a battery operated electric Unit envisaged for the purpose of movement of cylinders filled with high purity dry nitrogen directly at the users' point for direct use. This Nitrogen Transport Unit consists of the following: • High pressure nitrogen cylinders grouped into 3 sup groups. • Pneumatic booster to boost nitrogen from partially used cylinders. • Set of control valve and pressure regulators to make available nitrogen at different pressures through dispensing connection. • Charging connection. • Gauge / instrument panel to monitor and control operation • Dew point meter to monitor purity of nitrogen. • Canopy for protection of equipment against weather. While we have described and illustrated the entire invention, in particular embodiment of our present invention, we do not wish to limit ourselves to the exact form shown, which is intended to illustrate the invention rather than to limit it. It is to be expressly understood, that the invention is susceptible to such changes and modifications which may be made by any person well versed in the art to suit individual requirements and any such modifications or changes so made in the units or device herein above described and illustrated shall define no material departure from the salient features of the invention herein described and illustrated in the accompanying drawings and shall be considered to be falling within the ambit and scope of this invention and the appended Claims. Some changes may be made in Units from the invention as described. 8 We Claim: (1) A Unified Portable Nitrogen Generating and Distribution Station comprises of a Nitrogen Gas Generation unit, storage unit and transport unit wherein each unit is mounted on separate moveable trolleys. (2) A Unified Portable Nitrogen Generating and Distribution Station as claimed in Claim 1 wherein an assimilated Nitrogen Gas Generation unit comprises of • A non-lubricated Air Compressor with electric motor. • Air cooled package for cooling of Compressed Air. • Storage Receiver for Compressed Air, • Membrane Unit for separating Nitrogen from Air. • Nitrogen Storage vessel. • Pneumatically actuated booster - stage 1 • Pneumatically actuated booster - stage 2 • Low pressure Intermediate storage vessel for Nitrogen • 3 x 401tr High Pressure Cylinder • Dispensing Connection for 150 Bar and 350 bar disposal of Nitrogen • Control Valves, Pressure regulators and safety relief Valves. • Gauge / instrument panel to monitor and control operation • Oxygen analyzer meter to monitor purity of nitrogen • Canopy for protection of equipment against rain, snow and sunlight. and are mounted on a movable trolley. 9 (3) A Unified Portable Nitrogen Generating and Distribution Station as claimed in Claim 1 wherein an assimilated Nitrogen Gas Storage Unit comprises of: • High pressure storage cylinders in groups. • Manifold high pressure Nitrogen cylinders. • Relief valves. • Distribution valves, dispensing connections mounted on a penal. • High pressure dryer. • Pressure regulators and control valves • Gauge/control panel for monitoring of nitrogen stream • Dew point meter for on line monitoring of nitrogen flow. • Canopy for weather protection and are mounted on a movable trolley. (4) Unified Portable Nitrogen Generating and Distribution Station as claimed in Claim 1 wherein an assembled, assimilated and substantially battery operated nitrogen gas transport unit comprises of: • High pressure nitrogen cylinders grouped into 3 sub groups. • Pneumatic booster to boost nitrogen from partially used cylinders. • Set of control valve and pressure regulators to make available nitrogen at different pressures through dispensing connection. • Charging connection. 10 • Gauge / instrument panel to monitor and control operation • Dew point meter to monitor purity of nitrogen. • Canopy for protection of equipment against weather. and are mounted on a movable trolley. (5) A method to generate high purity nitrogen gas, storage and transporting directly at the user's point through a Nitrogen Gas Generator Unit, Nitrogen Gas Storage Unit and Nitrogen Gas Transport Unit all mounted on independent transportable and portable trolleys. Mumbai, this 20th December, 2005 For KIRLOSKAR PNEUMATIC CO. LTD. VIPUL N. BHUTA Patent Agent Aditya & Associates (By Their agents) 11 ABSTRACT Unified Portable Nitrogen Generating and Distribution Station comprises of four mobile trolleys wherein from the atmospheric air, high pressured Nitrogen Gas is generated and thereafter it is passed over to the Nitrogen Gas Storage Unit wherein to maintain the moisture level, the Nitrogen Gas is passed through a high pressure dryer. The dried nitrogen is then stored into the high pressure storage cylinders for necessary dispensation through a battery operated transport unit directly at the users' point of use. 12

Full Text

FORM 2 THE PATENT ACT 1970 (39 OF 1970) & The Patents Rules, 2003 PROVISIONAL / COMPLETE SPECIFICATION (See Section 10 and rule 13)
1. TITLE OF THE INVENTIONUnified Portable Nitrogen Generating and Distribution Station.
2. APPLICANT (S)(a) Name: KIRLOSKAR PNEUMATIC CO. LTD.,
(b) Nationality: A Company incorporated under the Companies Act, 1956, India
(c) Address: Hadapsar Industrial Estate, Pune 411 013, India.
3. PREAMBLE TO THE DESCRIPTION
PROVISIONALThe following specification describes the invention COMPLETEThe following specification particularly describes the invention and the manner in which it is to be performed.
4. DESCRIPTION (Description shall start from next page)
5. CLAIMS (not applicable for provisional specification. Claims should start with the preamble - "I/We claim" on separate page)
6. DATE AND SIGNATURE (to be given at the end of last page of specification)
7. ABSTRACT OF THE INVENTION (to be given along with complete specification on separate page)
Note:-• Repeat boxes in case of more than one entry.• To be signed by the applicant(s) or by authorized registered patent agent.• Name of the applicant should be given in full, family name in the beginning.• Complete address of the applicant should be given stating the postal index no./code, state and country.• Strike out the column which is/are not applicable.

FIELD OF INVENTION
The present invention relates to combination of trolleys to carry unified Nitrogen Gas Generating and Distribution Station, which is portable and having application in space and aerospace industry such as inflation of aircraft tires, charging of landing gear struts and actuators, missile launcher charging, blanketing of fuel tank in case a missile hits fuel tank.
BACKGROUND OF THE INVENTION
At present, the space and aerospace industry is using the nitrogen gas available in high pressure cylinders. However, they are facing many difficulties in availability of high quality Nitrogen, effective supply system, storage facilities, checking of quality of Nitrogen at the users' site, mobility and portability etc. To overcome these disadvantages particularly for space and aerospace requirements where mobility, portability and space are the main constraints, there was a need to have a technology and /or combination of suited technology for generation of nitrogen gas of required purity and grade, present invention provides for a trolley comprising of Nitrogen Gas Generation unit, Storage unit and transport vehicle.
At present, generally production of gaseous nitrogen at the site of user can be divided into two broad categories.
First method is to generate gaseous nitrogen from liquid nitrogen stored in a cryogenic-containers by controlled evaporation of liquid at the users' site. In this method liquid nitrogen is produced at the large Unitary plants. This liquid nitrogen is thereafter stored and purchased in relatively smaller cryogenic containers and transported to the users site.
1

At the User's site, the liquid nitrogen is evaporated in controlled heat exchanger to gaseous form as and when required and further compressed to required pressure and stored in the standard cylinders.
This method is having many disadvantages such as, heavy "boil off i.e. the liquid nitrogen is stored at cryogenic temperature during the storage, heat from the atmosphere is transferred to the nitrogen liquid even though the vessel is thermally insulated. This heat evaporates some amount of liquid nitrogen into gaseous form arid relieved through pressure relieving devices provided on the vessel in the atmosphere. This is a continuous process. Moreover, at the time of transfer of liquid nitrogen for evaporation in controlled heat exchanger, there is a leakage through the joints which is called "transfer loss". In addition, the cost of liquid nitrogen per kg. is comparatively higher than generation of nitrogen gas at the users' site. Further, this process involves operational hazards due to the generation and storage of liquid nitrogen at a very low temperature (cryogenic temperature).
It is pertinent to note here that the nitrogen gas is also available in low pressure commercial nitrogen cylinders for direct use at the site. The said gas is however, lacks in requisite purity, cleanliness and moisture contents and there are no means available to achieve requisite quality. In addition, these cylinders are available only at few select locations.
The second method is to generate gaseous nitrogen from the atmosphere. This methodology is based on the principle of separating components of atmospheric air into nitrogen and oxygen.
There are two principal sub methods of this type viz. Pressure Swing Adsorption techniques known as PSA technology and Membrane Technology.
2

PSA Technology:
PSA technology is used to effect the separation of gaseous components from the atmosphere. This technology consists of twin vessel charged with special molecular sieve in a form of chemical granules called adsorbent. These vessels do adsorption of oxygen bearing molecules and regeneration of adsorbent on an alternate basis and generate gas rich of nitrogen.
This method is also having certain disadvantages which include:
1. inconsistent nitrogen purity and moisture content due to cyclical operation time and properties of the adsorbent at near saturation point.
2. relatively larger plant resulting in problems of portability or manageability at the users' site and heavy maintenance attached thereto.
Membrane Technology:
The membrane technology consists of passing oil free air through hollow membrane fiber walls. The gases like oxygen, carbon dioxide, water vapor permeate out of the wall of the fiber and are vented cut.
Nitrogen rich gas with requisite purity comes out of membrane module. This gas is having a low dew point of minus 65 Deg C which is suitable for most of commercial applications.
SUMMARY OF THE INVENTION
3

As stated in the background herein above, to overcome various disadvantages particularly for space and aerospace requirements where mobility, portability and space are the main constraints, there was a need to have a technology and /or combination of suited technology for generation of nitrogen gas of required purity and grade. The present invention provides for at least three moveable and relatively portable independent units possibly in form of trolleys. These units comprises of a Power generating unit, Nitrogen Gas Generating Unit, Nitrogen Gas Storage Unit, Nitrogen Gas transport Unit. These trolleys are movable as well as relatively portable at possibly all the users' site.
Now, we will summarize the invention comprises of these three Units as under:
The Nitrogen Gas Generating Unit comprises mainly of a compressor which receives power form a power generation unit The atmospheric air is filtered and then compressed into two stages by a water-cooled, non-lubricated compressor. The Air is then passed through the membrane unit to separate Nitrogen from Air and boosted to the pressure of 350 Bar and dried through high pressure drier. The generated high pressured Nitrogen Gas thereafter passed over to the Nitrogen Gas Storage Unit wherein to maintain the moisture level, the Nitrogen Gas is passed through a high pressure dryer fitted with online Dew Point meter to monitor the moisture level. The dried nitrogen is "then stored into the high pressure storage cylinders for necessary dispensation. The Final unit is Nitrogen Gas Transport Unit which carries cylinders full of high purity dry nitrogen. This unit is in a form of battery operated electric Unit which can move upto the Aircraft for dispensation of high pressured pure nitrogen gas through cylinders. Thus the whole process i.e. from the nitrogen gas generation, its storage and finally its dispensation at the place where the recipient is United is being done with relatively compressed moveable and portable units. As explained at the outset,
4

such mobility and portability are very crucial for fighter Aircrafts united at Air Bases on hilly areas as well as the Army united at hilly, forest or deserted areas where free movement of vehicles are not easily possible.
However, all the three units are operating independently but in conjunction and to achieve the objective of the invention, it is necessary to operate all the three units in sequence.
The embodiment of the invention is described properly with reference to the accompanying drawings. Various drawings are referring various Units as explained in brief above:
♦ Fig 1 - A Power Generating Unit.
♦ Fig 2 - Schematic view of Nitrogen Generating Unit.
♦ Fig 2A - Sectional views of Nitrogen Generating-Unit.
♦ Fig 3 - Schematic view of Nitrogen Storage Unit.
♦ Fig 3A - Sectional views of Nitrogen Storage Unit.
♦ Fig 4 - Schematic view of Nitrogen Gas Transport Unit.
♦ Fig 4A - Sectional views of Nitrogen Gas Transport Unit.
♦ Fig 5 - Legends
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT
Please refer to Fig 1 which is portable power generating equipment capable of giving 415VAC, 3ph, 50 hz power supply. The principal function of the power unit is to provide electrical power to Nitrogen Generating Unit and Nitrogen Storage Unit.
Please refer to Fig 2 which shows a process of generation of nitrogen gas out of atmospheric air by the Nitrogen Gas Generation Unit. This Unit is the main part of the whole invention. The Nitrogen Gas Generating Unit
5

comprises of a power unit (power generator) and a gas generation unit mounted on a moveable and portable trolley and in addition it also consists of the following,
• A non-lubricated Air Compressor with electric motor.
• Air cooled package for cooling of Compressed Air.
• Storage Receiver for Compressed Air.
• Membrane Unit for separating Nitrogen from Air.
• Nitrogen Storage vessel.
• Pneumatically actuated booster - stage 1
• Low pressure Intermediate storage vessel for Nitrogen
• Pneumatically actuated booster - stage 2
• 3 x 401tr High Pressure Cylinder
• Dispensing Connection for 150 Bar and 350 bar disposal of Nitrogen
• Control Valves, Pressure regulators and safety relief Valves.
• Gauge / instrument panel to monitor and control operation
• Oxygen analyzer meter to monitor purity of nitrogen
• Canopy for protection of equipment against rain, snow and sunlight.
• A High pressure dryer with Dew Point Meter.
All the aforesaid independent units are assembled and assimilated in one process unit so as to mount the same on a moveable trolley. All the above independent units are operated to generate the high pressured nitrogen gas of high grade purity. The whole process of gas generation can be described as follows.
The Air from the atmosphere is filtered and then compressed in two stages by a water-cooled, non-lubricated compressor. The pressurized air is cooled in the cooler package and then stored in a receiver. The Air is then passed through the membrane unit to separate Nitrogen from Air. The Nitrogen gas generated out of membrane unit is boosted in two
6

stages to achieve the final pressure of 350 Bar. The requisite pressurized Nitrogen gas is available at the dispensing connection.
This whole Unit can be transported or air lifted to the desired site.
Now please refer to Fig 3 which is a schematic view of the Nitrogen Gas Storage Unit which receives the high pressure nitrogen gas generated by the generation unit through its dispensing connection. The Nitrogen Gas Storage Unit comprises of following independent units mounted on a moveable and possibly portable trolley and also consists of the following.
• High pressure storage cylinders in groups.
• Manifold high pressure Nitrogen cylinders.
• Relief valves.
• Distribution valves, dispensing connections mounted on a penal.
• High pressure dryer.
• Pressure regulators and control valves
• Gauge/control panel for monitoring of nitrogen stream
• Dew point meter for on line monitoring of nitrogen flow.
• Canopy for weather protection
The nitrogen gas coming out of the generator unit has the requisite purity from oxygen content point of view. However, to continuously achieve the desired quality of nitrogen gas in terms of moisture level, the nitrogen gas is passed through a high pressure dryer fitted with online Dew Point meter to remove the moisture to the lowest level and to monitor the moisture level in the nitrogen gas. The dried nitrogen is then charged into the high pressure storage cylinders. The nitrogen gas thereafter can be dispensed through distribution valves, mounted on a penal at preset desired pressure.
This whole Unit can also be transported or air lifted to the desired site.
7

Further, please see Fig 4 which is an unit required to transport the high purity dry nitrogen available in cylinders to the users' site. This Nitrogen Transport Unit may be a battery operated electric Unit envisaged for the purpose of movement of cylinders filled with high purity dry nitrogen directly at the users' point for direct use.
This Nitrogen Transport Unit consists of the following:
• High pressure nitrogen cylinders grouped into 3 sup groups.
• Pneumatic booster to boost nitrogen from partially used cylinders.
• Set of control valve and pressure regulators to make available nitrogen at different pressures through dispensing connection.
• Charging connection.
• Gauge / instrument panel to monitor and control operation
• Dew point meter to monitor purity of nitrogen.
• Canopy for protection of equipment against weather.
While we have described and illustrated the entire invention, in particular embodiment of our present invention, we do not wish to limit ourselves to the exact form shown, which is intended to illustrate the invention rather than to limit it. It is to be expressly understood, that the invention is susceptible to such changes and modifications which may be made by any person well versed in the art to suit individual requirements and any such modifications or changes so made in the units or device herein above described and illustrated shall define no material departure from the salient features of the invention herein described and illustrated in the accompanying drawings and shall be considered to be falling within the ambit and scope of this invention and the appended Claims.
Some changes may be made in Units from the invention as described.
8

We Claim:
(1) A Unified Portable Nitrogen Generating and Distribution Station comprises of a Nitrogen Gas Generation unit, storage unit and transport unit wherein each unit is mounted on separate moveable trolleys.
(2) A Unified Portable Nitrogen Generating and Distribution Station as claimed in Claim 1 wherein an assimilated Nitrogen Gas Generation unit comprises of

• A non-lubricated Air Compressor with electric motor.
• Air cooled package for cooling of Compressed Air.
• Storage Receiver for Compressed Air,
• Membrane Unit for separating Nitrogen from Air.
• Nitrogen Storage vessel.
• Pneumatically actuated booster - stage 1
• Pneumatically actuated booster - stage 2
• Low pressure Intermediate storage vessel for Nitrogen
• 3 x 401tr High Pressure Cylinder
• Dispensing Connection for 150 Bar and 350 bar disposal of Nitrogen
• Control Valves, Pressure regulators and safety relief Valves.
• Gauge / instrument panel to monitor and control operation
• Oxygen analyzer meter to monitor purity of nitrogen
• Canopy for protection of equipment against rain, snow and sunlight.
and are mounted on a movable trolley.
9

(3) A Unified Portable Nitrogen Generating and Distribution Station
as claimed in Claim 1 wherein an assimilated Nitrogen Gas
Storage Unit comprises of:
• High pressure storage cylinders in groups.
• Manifold high pressure Nitrogen cylinders.
• Relief valves.
• Distribution valves, dispensing connections mounted on a penal.
• High pressure dryer.
• Pressure regulators and control valves
• Gauge/control panel for monitoring of nitrogen stream
• Dew point meter for on line monitoring of nitrogen flow.
• Canopy for weather protection
and are mounted on a movable trolley.
(4) Unified Portable Nitrogen Generating and Distribution Station
as claimed in Claim 1 wherein an assembled, assimilated and
substantially battery operated nitrogen gas transport unit
comprises of:
• High pressure nitrogen cylinders grouped into 3 sub groups.
• Pneumatic booster to boost nitrogen from partially used cylinders.
• Set of control valve and pressure regulators to make available nitrogen at different pressures through dispensing connection.
• Charging connection.
10

• Gauge / instrument panel to monitor and control operation
• Dew point meter to monitor purity of nitrogen.
• Canopy for protection of equipment against weather.
and are mounted on a movable trolley.
(5) A method to generate high purity nitrogen gas, storage and transporting directly at the user's point through a Nitrogen Gas Generator Unit, Nitrogen Gas Storage Unit and Nitrogen Gas Transport Unit all mounted on independent transportable and portable trolleys.
Mumbai, this 20th December, 2005
For KIRLOSKAR PNEUMATIC CO. LTD.

VIPUL N. BHUTA
Patent Agent
Aditya & Associates
(By Their agents)
11

ABSTRACT
Unified Portable Nitrogen Generating and Distribution Station comprises of four mobile trolleys wherein from the atmospheric air, high pressured Nitrogen Gas is generated and thereafter it is passed over to the Nitrogen Gas Storage Unit wherein to maintain the moisture level, the Nitrogen Gas is passed through a high pressure dryer. The dried nitrogen is then stored into the high pressure storage cylinders for necessary dispensation through a battery operated transport unit directly at the users' point of use.
12

Documents:

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Patent Number

268880

Indian Patent Application Number

1605/MUM/2005

PG Journal Number

39/2015

Publication Date

25-Sep-2015

Grant Date

21-Sep-2015

Date of Filing

21-Dec-2005

Name of Patentee

KIRLOSKAR PNEUMATIC CO LTD.,

Applicant Address

Hadapsar Industrial Estate, Pune 411 013.

Inventors:

#	Inventor's Name	Inventor's Address
1	JOSHI PRAKASH VAMAN	Hadapsar Industrial Estate, Pune 411 013.

PCT International Classification Number

B23Q11/10

PCT International Application Number

N/A

PCT International Filing date

PCT Conventions:

#	PCT Application Number	Date of Convention	Priority Country
1			NA