EP2444136A1 - A fog generator comprising a fog generating marker fluid - Google Patents

A fog generator comprising a fog generating marker fluid Download PDF

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Publication number
EP2444136A1
EP2444136A1 EP10188601A EP10188601A EP2444136A1 EP 2444136 A1 EP2444136 A1 EP 2444136A1 EP 10188601 A EP10188601 A EP 10188601A EP 10188601 A EP10188601 A EP 10188601A EP 2444136 A1 EP2444136 A1 EP 2444136A1
Authority
EP
European Patent Office
Prior art keywords
fog
fluid
marker
person
fog generating
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP10188601A
Other languages
German (de)
French (fr)
Inventor
Alfons Vandoninck
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Bandit NV
Original Assignee
Bandit NV
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Bandit NV filed Critical Bandit NV
Priority to EP10188601A priority Critical patent/EP2444136A1/en
Publication of EP2444136A1 publication Critical patent/EP2444136A1/en
Withdrawn legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63J—DEVICES FOR THEATRES, CIRCUSES, OR THE LIKE; CONJURING APPLIANCES OR THE LIKE
    • A63J5/00—Auxiliaries for producing special effects on stages, or in circuses or arenas
    • A63J5/02—Arrangements for making stage effects; Auxiliary stage appliances
    • A63J5/025—Devices for making mist or smoke effects, e.g. with liquid air
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B15/00—Identifying, scaring or incapacitating burglars, thieves or intruders, e.g. by explosives
    • G08B15/02—Identifying, scaring or incapacitating burglars, thieves or intruders, e.g. by explosives with smoke, gas, or coloured or odorous powder or liquid

Definitions

  • the present invention relates to a fog generating marker fluid for a fog generator. Further, the invention relates to a fog generator comprising such fog generating marker fluid, and to its use in security applications and in authentication of genuine objects or products. Additionally, the present invention relates to a method for authenticating a person or an object.
  • Fog generators are used in a variety of applications. In particular, they are used in security applications for generating a fog screen upon entrance of an unauthorized person at a given location for obscuring goods or valuables from that unauthorized person's sight.
  • a main working principle of a fog generator is as follows: a fog generating fluid is driven into a heat exchanger by a pump or a propellant gas; in the heat exchanger, the fog generating fluid is heated and transferred to steam; the steam is ejected then at the end of the heat exchanger in the form of a fog into the ambient.
  • the fog generated fluid used in a fog generator for security applications is designed such that the ejected steam and fog is harmless for the goods and valuables present at a given location and for people entering that location after the crime, leaving substantially no traces on the goods and people's bodies or clothes.
  • the present invention meets the above object by providing a fog generating marker fluid comprising a fog generating fluid and an invisible marker, by providing a fog generator comprising such fog generating marker fluid, and by providing a method comprising mixing an invisible marker with a fog generating fluid, obtaining a fog generating marker fluid and transforming the fog generating marker fluid into fog in the presence of a person of object at a given location.
  • the present invention is directed to a fog generating marker fluid for a fog generator comprising a fog generating fluid and an invisible marker. Further, the invention is directed to a fog generator comprising such fog generating marker fluid, and to its use in security applications and in authentication of genuine objects or products. Additionally, the present invention is directed to a method for authenticating a person or an object, comprising: providing a fog generating fluid; mixing an invisible marker with said fog generating fluid, obtaining a fog generating marker fluid; and transforming the fog generating marker fluid into fog in the presence of a person or an object at a given location.
  • the invention provides a fog generating marker fluid for a fog generator comprising a fog generating fluid and an invisible marker.
  • such invisible marker may be any substance suitable for being mixed with the fog generating fluid, for being spread by using the fog as a carrier, for adhering to the surface of objects, bodies, clothes, etc, and having sufficient retention characteristics for being detected by know detection methods or forensic methods.
  • the invisible marker maybe produced as solid or liquid, water or oil based, a suspension, an aggregate and the like.
  • the invisible marker may comprise a nucleotide, a nucleotide sequence, a nucleic acid fragment, a nucleic acid, a sequence of nucleic acids, a DNA sequence fragment, a DNA sequence, or derivatives thereof.
  • One or more of the nucleotides may be modified enhancing the identification or detection of the nucleotide.
  • sequences or fragments used may vary in length, depending on the application and the detection technique used and may be synthetically produced using a nucleotide/nucleic acid synthesizer or by isolating nucleotide material from yeast, human cell lines, bacteria, animals, plants and the like.
  • the concentration of invisible marker in the fog generating marker fluid, and the concentration of nucleotide material or derivatives thereof in the invisible marker may vary depending on the duration the invisible marker needs to be detectable (e.g. 1 month, 1 year, multiple years), the expected environmental exposure, the detection method to be used, etc.
  • the invisible marker may comprise an UV fluorescent substance, e.g. UV ink, such that identification or detection may be possible by means of an UV lamp or other known UV detection techniques.
  • UV ink e.g. UV ink
  • thermochromic ink may be used.
  • the fog generating marker fluid may comprise a nucleotide, a nucleotide sequence, a nucleic acid fragment, a nucleic acid, a sequence of nucleic acids, a DNA sequence fragment, a DNA sequence, or derivatives thereof, in combination with an UV fluorescent substance, using the latter as a quick and easy detectable substance providing policemen in the field, etc. an quick indication that nucleotides, a nucleic acid sequence, a DNA fragment etc. could be present.
  • the fog generating fluid may comprise at least one glycol or at least one glycerol. Mixtures comprising a glycol and a glycerol, or two or more glycols, or two or more glycerols may be used.
  • the fog generating mixture preferably contains approximately about 5 to 50 volume percent of water, and about 50 to about 80 volume percent of glycol.
  • the glycol may be a mixture of about 10 to 25 volume percent of triethylene glycol, the remainder being dipropylene glycol, but other glycols and glycol mixtures may also be used.
  • An example of a very suitable fog generating fluid comprises about 10 volume percent of water, about 10 volume percent of triethylene glycol, and about 80 volume percent of dipropylene glycol.
  • the fog may have two main functions: (i) obscuring goods and valuables, and (ii) being a carrier for the invisible marker, condensing in the form of (micro)droplets containing invisible marker on the surface of objects, or people's body or clothes.
  • the invisible marker adheres to the surface, while the mixture of water and glycol or glycerol vaporizes.
  • the UV fluorescent substance may function as a general identification means, while the nucleotide or nucleotide sequence etc. may function as a unique identification means.
  • a fog generator comprising a fog generating marker fluid as described throughout this text.
  • a fog generator in accordance with the present invention may be used in all applications where proof may be requested that objects or persons were present at a given location.
  • fog generator may be activated upon entrance of an unauthorized person at a given location where the fog generator is installed.
  • the fog generator generates fog carrying the invisible marker which adheres to the unauthorized person's body or clothes such that he/she can still be identified during a period of time after the crime.
  • Another example may be its use in anti-counterfeit activities where a genuine object or a collection of genuine objects is exposed to fog carrying the invisible marker, such that these genuine objects or products can be authenticated.
  • the present invention provides a method for authenticating a person or an object, comprising:
  • a method is provided further comprising subsequently detecting the invisible marker and associating it with the person's or the object's former presence at the given location.
  • such person is an unauthorized person at the given location.
  • the invisible marker may comprise a unique DNA embedded serial number or a unique encrypted code.
  • such number or code may be different for each location were a fog generator in accordance with the present invention is installed, or may follow the different serial numbers of a specific series of manufactured products.

Abstract

The present invention relates to a fog generating marker fluid for a fog generator comprising a fog generating fluid and an invisible marker. Further, the invention relates to a fog generator comprising such fog generating marker fluid, and to its use in security applications and in authentication of genuine objects or products. Additionally, the present invention relates to a method for authenticating a person or an object, comprising: providing a fog generating fluid; mixing an invisible marker with said fog generating fluid, obtaining a fog generating marker fluid; and transforming the fog generating marker fluid into fog in the presence of a person or an object at a given location.

Description

    FIELD OF THE INVENTION
  • The present invention relates to a fog generating marker fluid for a fog generator. Further, the invention relates to a fog generator comprising such fog generating marker fluid, and to its use in security applications and in authentication of genuine objects or products. Additionally, the present invention relates to a method for authenticating a person or an object.
    • BACKGROUND OF THE INVENTION
  • Fog generators are used in a variety of applications. In particular, they are used in security applications for generating a fog screen upon entrance of an unauthorized person at a given location for obscuring goods or valuables from that unauthorized person's sight.
  • A main working principle of a fog generator is as follows: a fog generating fluid is driven into a heat exchanger by a pump or a propellant gas; in the heat exchanger, the fog generating fluid is heated and transferred to steam; the steam is ejected then at the end of the heat exchanger in the form of a fog into the ambient.
  • The fog generated fluid used in a fog generator for security applications is designed such that the ejected steam and fog is harmless for the goods and valuables present at a given location and for people entering that location after the crime, leaving substantially no traces on the goods and people's bodies or clothes.
  • However, a general problem is that also on the unauthorized person's body or clothes or on stolen objects no fog traces can be found. Consequently, in case the person has not been caught in flagrante delicto, it is substantially not possible to prove he/she, or an object in his/her possession was present at the given location.
  • Considering the above, it is an object of the present invention to provide a method for authenticating a person or an object present at a given location.
  • It is a further object of the present invention to provide a method which is not harmful for goods or persons present at the location, which is in compliance with applicable law, and which allows reliable, stable and persistent detection or authentication.
  • The present invention meets the above object by providing a fog generating marker fluid comprising a fog generating fluid and an invisible marker, by providing a fog generator comprising such fog generating marker fluid, and by providing a method comprising mixing an invisible marker with a fog generating fluid, obtaining a fog generating marker fluid and transforming the fog generating marker fluid into fog in the presence of a person of object at a given location.
    • SUMMARY OF THE INVENTION
  • The present invention is directed to a fog generating marker fluid for a fog generator comprising a fog generating fluid and an invisible marker. Further, the invention is directed to a fog generator comprising such fog generating marker fluid, and to its use in security applications and in authentication of genuine objects or products. Additionally, the present invention is directed to a method for authenticating a person or an object, comprising: providing a fog generating fluid; mixing an invisible marker with said fog generating fluid, obtaining a fog generating marker fluid; and transforming the fog generating marker fluid into fog in the presence of a person or an object at a given location.
    • DESCRIPTION OF THE INVENTION
  • According to a first embodiment of the present invention, the invention provides a fog generating marker fluid for a fog generator comprising a fog generating fluid and an invisible marker.
  • In the context of the present invention, such invisible marker may be any substance suitable for being mixed with the fog generating fluid, for being spread by using the fog as a carrier, for adhering to the surface of objects, bodies, clothes, etc, and having sufficient retention characteristics for being detected by know detection methods or forensic methods.
  • The invisible marker maybe produced as solid or liquid, water or oil based, a suspension, an aggregate and the like.
  • In an embodiment in accordance with the present invention, the invisible marker may comprise a nucleotide, a nucleotide sequence, a nucleic acid fragment, a nucleic acid, a sequence of nucleic acids, a DNA sequence fragment, a DNA sequence, or derivatives thereof.
  • One or more of the nucleotides may be modified enhancing the identification or detection of the nucleotide.
  • The sequences or fragments used may vary in length, depending on the application and the detection technique used and may be synthetically produced using a nucleotide/nucleic acid synthesizer or by isolating nucleotide material from yeast, human cell lines, bacteria, animals, plants and the like.
  • The concentration of invisible marker in the fog generating marker fluid, and the concentration of nucleotide material or derivatives thereof in the invisible marker may vary depending on the duration the invisible marker needs to be detectable (e.g. 1 month, 1 year, multiple years), the expected environmental exposure, the detection method to be used, etc.
  • In another embodiment in accordance with the present invention, the invisible marker may comprise an UV fluorescent substance, e.g. UV ink, such that identification or detection may be possible by means of an UV lamp or other known UV detection techniques. Alternatively, also thermochromic ink may be used.
  • In a preferred embodiment, the fog generating marker fluid may comprise a nucleotide, a nucleotide sequence, a nucleic acid fragment, a nucleic acid, a sequence of nucleic acids, a DNA sequence fragment, a DNA sequence, or derivatives thereof, in combination with an UV fluorescent substance, using the latter as a quick and easy detectable substance providing policemen in the field, etc. an quick indication that nucleotides, a nucleic acid sequence, a DNA fragment etc. could be present.
  • In accordance with the present invention, the fog generating fluid may comprise at least one glycol or at least one glycerol. Mixtures comprising a glycol and a glycerol, or two or more glycols, or two or more glycerols may be used. To optimize the quality of the fog, the fog generating mixture preferably contains approximately about 5 to 50 volume percent of water, and about 50 to about 80 volume percent of glycol. The glycol may be a mixture of about 10 to 25 volume percent of triethylene glycol, the remainder being dipropylene glycol, but other glycols and glycol mixtures may also be used. An example of a very suitable fog generating fluid comprises about 10 volume percent of water, about 10 volume percent of triethylene glycol, and about 80 volume percent of dipropylene glycol.
  • Without being bound by any theory, the fog may have two main functions: (i) obscuring goods and valuables, and (ii) being a carrier for the invisible marker, condensing in the form of (micro)droplets containing invisible marker on the surface of objects, or people's body or clothes. The invisible marker adheres to the surface, while the mixture of water and glycol or glycerol vaporizes. The UV fluorescent substance may function as a general identification means, while the nucleotide or nucleotide sequence etc. may function as a unique identification means.
  • Additionally, in an embodiment in accordance with the present invention, a fog generator is provided comprising a fog generating marker fluid as described throughout this text.
  • A fog generator in accordance with the present invention may be used in all applications where proof may be requested that objects or persons were present at a given location.
  • For example in security applications, such fog generator may be activated upon entrance of an unauthorized person at a given location where the fog generator is installed. The fog generator generates fog carrying the invisible marker which adheres to the unauthorized person's body or clothes such that he/she can still be identified during a period of time after the crime.
  • Another example may be its use in anti-counterfeit activities where a genuine object or a collection of genuine objects is exposed to fog carrying the invisible marker, such that these genuine objects or products can be authenticated.
  • Additionally, the present invention provides a method for authenticating a person or an object, comprising:
    • providing a fog generating fluid
    • mixing an invisible marker with said fog generating fluid, obtaining a fog generating marker fluid,
    • transforming the fog generating marker fluid into fog in the presence of a person or an object at a given location.
  • In an embodiment in accordance with the present invention, a method is provided further comprising subsequently detecting the invisible marker and associating it with the person's or the object's former presence at the given location.
  • In a particular embodiment, such person is an unauthorized person at the given location.
  • In a particular embodiment, the invisible marker may comprise a unique DNA embedded serial number or a unique encrypted code. As an example, such number or code may be different for each location were a fog generator in accordance with the present invention is installed, or may follow the different serial numbers of a specific series of manufactured products.
  • In case it is intended to use the above method for authenticating manufactured products without alter the quality of the products and without major changes to the manufacturing process or logistic chain, it is sufficient to stock the products in a closed location, and activate a sufficiently powerful fog generator comprising a fog generating marker fluid as described above to expose the products to fog comprising invisible marker.

Claims (11)

  1. A fog generating marker fluid for a fog generator comprising a fog generating fluid and an invisible marker.
  2. A fog generating marker fluid according to claim 1 wherein the invisible marker comprises a nucleotide, a nucleotide sequence, a nucleic acid fragment, a nucleic acid, a sequence of nucleic acids, a DNA sequence fragment, a DNA sequence, or derivatives thereof.
  3. A fog generating marker fluid according to claims 1 or 2, wherein the invisible marker comprises an UV fluorescent substance.
  4. A fog generator comprising a fog generating marker fluid according to any of the above claims.
  5. Use of a fog generator according to claim 4 for security applications.
  6. Use of a fog generator according to claim 5 for authenticating genuine objects or products.
  7. A method for authenticating a person or an object, comprising:
    - providing a fog generating fluid
    - mixing an invisible marker with said fog generating fluid, obtaining a fog generating marker fluid,
    - transforming the fog generating marker fluid into fog in the presence of a person or an object at a given location.
  8. A method for authenticating a person or an object, wherein the invisible marker comprises a nucleotide, a nucleotide sequence, a nucleic acid fragment, a nucleic acid, a sequence of nucleic acids, a DNA sequence fragment, a DNA sequence, or derivatives thereof.
  9. A method for authenticating a person or an object according to claims 7 or 8, wherein the invisible marker comprises an UV fluorescent substance.
  10. A method for authenticating a person or an object according to claims 7 to 9, comprising subsequently detecting the invisible marker and associating it with the person's or the object's former presence at the given location.
  11. A method for authenticating an person or an object according to claim 10, wherein the person is an unauthorized person at the given location.
EP10188601A 2010-10-22 2010-10-22 A fog generator comprising a fog generating marker fluid Withdrawn EP2444136A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP10188601A EP2444136A1 (en) 2010-10-22 2010-10-22 A fog generator comprising a fog generating marker fluid

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP10188601A EP2444136A1 (en) 2010-10-22 2010-10-22 A fog generator comprising a fog generating marker fluid

Publications (1)

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EP2444136A1 true EP2444136A1 (en) 2012-04-25

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Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2014062754A1 (en) 2012-10-16 2014-04-24 Applied Dna Sciences, Inc. Security system and method of marking an inventory item and/or person in the vicinity
US9297032B2 (en) 2012-10-10 2016-03-29 Apdn (B.V.I.) Inc. Use of perturbants to facilitate incorporation and recovery of taggants from polymerized coatings
US9790538B2 (en) 2013-03-07 2017-10-17 Apdn (B.V.I.) Inc. Alkaline activation for immobilization of DNA taggants
US9904734B2 (en) 2013-10-07 2018-02-27 Apdn (B.V.I.) Inc. Multimode image and spectral reader
US9919512B2 (en) 2012-10-10 2018-03-20 Apdn (B.V.I.) Inc. DNA marking of previously undistinguished items for traceability
US9963740B2 (en) 2013-03-07 2018-05-08 APDN (B.V.I.), Inc. Method and device for marking articles
US10047282B2 (en) 2014-03-18 2018-08-14 Apdn (B.V.I.) Inc. Encrypted optical markers for security applications
US10519605B2 (en) 2016-04-11 2019-12-31 APDN (B.V.I.), Inc. Method of marking cellulosic products
US10741034B2 (en) 2006-05-19 2020-08-11 Apdn (B.V.I.) Inc. Security system and method of marking an inventory item and/or person in the vicinity
US10745825B2 (en) 2014-03-18 2020-08-18 Apdn (B.V.I.) Inc. Encrypted optical markers for security applications
US10760182B2 (en) 2014-12-16 2020-09-01 Apdn (B.V.I.) Inc. Method and device for marking fibrous materials
US10920274B2 (en) 2017-02-21 2021-02-16 Apdn (B.V.I.) Inc. Nucleic acid coated submicron particles for authentication
US10995371B2 (en) 2016-10-13 2021-05-04 Apdn (B.V.I.) Inc. Composition and method of DNA marking elastomeric material

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GB2270396A (en) * 1992-09-12 1994-03-09 Paul Anton Dards Intruder deterrent system
EP0664532A1 (en) * 1994-01-21 1995-07-26 Taher Burayez Motor vehicle security device
DE19542950A1 (en) * 1995-11-17 1997-05-22 Innovative Pyrotechnik Gmbh Room security device providing fog upon detection of intruder
GB2319337A (en) * 1996-11-12 1998-05-20 Probe Fx Patents Limited Composition for applying to goods as tracer or identifier
US5803359A (en) * 1993-11-24 1998-09-08 Jaico Device for generating a fog
WO2001036676A2 (en) * 1999-11-19 2001-05-25 Crime Solutions Limited Security system

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2270396A (en) * 1992-09-12 1994-03-09 Paul Anton Dards Intruder deterrent system
US5803359A (en) * 1993-11-24 1998-09-08 Jaico Device for generating a fog
EP0664532A1 (en) * 1994-01-21 1995-07-26 Taher Burayez Motor vehicle security device
DE19542950A1 (en) * 1995-11-17 1997-05-22 Innovative Pyrotechnik Gmbh Room security device providing fog upon detection of intruder
GB2319337A (en) * 1996-11-12 1998-05-20 Probe Fx Patents Limited Composition for applying to goods as tracer or identifier
WO2001036676A2 (en) * 1999-11-19 2001-05-25 Crime Solutions Limited Security system

Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10741034B2 (en) 2006-05-19 2020-08-11 Apdn (B.V.I.) Inc. Security system and method of marking an inventory item and/or person in the vicinity
US9919512B2 (en) 2012-10-10 2018-03-20 Apdn (B.V.I.) Inc. DNA marking of previously undistinguished items for traceability
US9297032B2 (en) 2012-10-10 2016-03-29 Apdn (B.V.I.) Inc. Use of perturbants to facilitate incorporation and recovery of taggants from polymerized coatings
AU2013331402B2 (en) * 2012-10-16 2017-10-26 Applied Dna Sciences, Inc. Security system and method of marking an inventory item and/or person in the vicinity
EP3432282A1 (en) * 2012-10-16 2019-01-23 Applied DNA Sciences Inc. Security system and method of marking an inventory item and/or person in the vicinity
EP2909822A4 (en) * 2012-10-16 2016-06-01 Applied Dna Sciences Inc Security system and method of marking an inventory item and/or person in the vicinity
WO2014062754A1 (en) 2012-10-16 2014-04-24 Applied Dna Sciences, Inc. Security system and method of marking an inventory item and/or person in the vicinity
US9790538B2 (en) 2013-03-07 2017-10-17 Apdn (B.V.I.) Inc. Alkaline activation for immobilization of DNA taggants
US9963740B2 (en) 2013-03-07 2018-05-08 APDN (B.V.I.), Inc. Method and device for marking articles
US10282480B2 (en) 2013-10-07 2019-05-07 Apdn (B.V.I) Multimode image and spectral reader
US9904734B2 (en) 2013-10-07 2018-02-27 Apdn (B.V.I.) Inc. Multimode image and spectral reader
US10047282B2 (en) 2014-03-18 2018-08-14 Apdn (B.V.I.) Inc. Encrypted optical markers for security applications
US10745825B2 (en) 2014-03-18 2020-08-18 Apdn (B.V.I.) Inc. Encrypted optical markers for security applications
US10760182B2 (en) 2014-12-16 2020-09-01 Apdn (B.V.I.) Inc. Method and device for marking fibrous materials
US10519605B2 (en) 2016-04-11 2019-12-31 APDN (B.V.I.), Inc. Method of marking cellulosic products
US10995371B2 (en) 2016-10-13 2021-05-04 Apdn (B.V.I.) Inc. Composition and method of DNA marking elastomeric material
US10920274B2 (en) 2017-02-21 2021-02-16 Apdn (B.V.I.) Inc. Nucleic acid coated submicron particles for authentication

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