Patents by Inventor Andrew John Gilbert
Andrew John Gilbert has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 8395122Abstract: Apparatus for detection of infrared radiation emitted from a taggant following excitation of the taggant sample measures the decay time of the radiation used. If the decay characteristic is accurately measured, the particular taggant can be accurately identified. The apparatus comprises an electronic controller, light-emitting diodes, a photo-detector, a first amplifier, a three-way sampling switch, filter/stores, second amplifiers and an output display. The infrared emission is excited by repeatedly illuminating the taggant for a period of microseconds every few milliseconds. When the light source is turned off, the sample continues radiating for a few milliseconds. The emission is detected by photo-detector sensitive to the 800 to 1000 nm waveband thereby rejecting interference from visible light sources.Type: GrantFiled: November 16, 2011Date of Patent: March 12, 2013Assignee: Filtrona C&SP LimitedInventors: Philip John Allen, Andrew John Gilbert
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Patent number: 8196966Abstract: A laminate 40 for a tamper-resistant identity document, the laminate comprising: a carrier film (10, FIG. 1) having a first adhesive layer 11 on a surface thereof, the first adhesive layer 11 comprising one or more visible registration features 13; and a cover film (20, FIG. 2b) having a first surface (20a, FIG. 2b) removably bonded to the first adhesive layer 11 and a second surface (20b, FIG. 2b) having a printed security feature 41, 42, 43 and a second adhesive layer (32, FIG. 3b) thereon. The cover film may have a thickness of no greater than 12 microns. The printed security feature may be in predetermined registration with the one or more visible registration features of the first adhesive layer.Type: GrantFiled: May 14, 2007Date of Patent: June 12, 2012Inventors: Philip John Allen, Andrew John Gilbert
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Publication number: 20120112071Abstract: Apparatus for detection of infrared radiation emitted from a taggant following excitation of the taggant sample measures the decay time of the radiation used. If the decay characteristic is accurately measured, the particular taggant can be accurately identified. The apparatus comprises an electronic controller, light-emitting diodes, a photo-detector, a first amplifier, a three-way sampling switch, filter/stores, second amplifiers and an output display. The infrared emission is excited by repeatedly illuminating the taggant for a period of microseconds every few milliseconds. When the light source is turned off, the sample continues radiating for a few milliseconds. The emission is detected by photo-detector sensitive to the 800 to 1000 nm waveband thereby rejecting interference from visible light sources.Type: ApplicationFiled: November 16, 2011Publication date: May 10, 2012Applicant: Filtrona C & SP LimitedInventors: Philip John Allen, Andrew John Gilbert
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Patent number: 8076643Abstract: A technique and apparatus for detection of infrared radiation emitted from a taggant material sample following the excitation of the sample are described. The decay time of the radiation is a function of the particular taggant being used and so, if the decay characteristic or signature is accurately measured, the particular taggant can be accurately identified. The apparatus comprises an electronic controller (10), a pair (12) of illuminating light-emitting diodes, a photo-detector (14), a first amplifier (16), a three-way sampling switch (18), filter/stores (20)(a-c), second amplifiers (22)(a-c) and an output display (26). The infrared emission is excited by repeatedly illuminating the material for a period of microseconds every few milliseconds using a very intense source of infrared light. This light is supplied by the pair of 940 nm, light-emitting diodes (12). Once this light source has been turned off, the sample continues radiating infrared light for a few milliseconds.Type: GrantFiled: December 18, 2006Date of Patent: December 13, 2011Assignee: Filtrona United Kingdom LimitedInventors: Philip John Allen, Andrew John Gilbert
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Patent number: 8025231Abstract: A hand held electronic detector is provided for detecting the presence/absence and/or nature of a mark on an article (not shown) such as a security mark. The article may comprise a product, such as for example a pack of cigarettes. The detector comprises a case or body of strong rigid plastics material. The case comprises front and rear parts and which are connected together by concealed hinges, at their lower edges, so that the parts and can move hingedly between a closed configuration and a fully open configuration, in which the front and rear parts are angularly spaced by approximately 180°. There is a further defined intermediate open configuration in which the front and rear parts and are angularly spaced by approximately 90° . . . . When opening the case from the closed position the hinges ‘lock’ when the front and rear parts reach this intermediate position. The hinges will only ‘unlock’, so that the case can be opened further or closed, if sufficient force is applied.Type: GrantFiled: December 18, 2006Date of Patent: September 27, 2011Assignee: Filtrona PLCInventors: Philip John Allen, Andrew John Gilbert
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Publication number: 20090255990Abstract: A hand held electronic detector is provided for detecting the presence/absence and/or nature of a mark on an article (not shown) such as a security mark. The article may comprise a product, such as for example a pack of cigarettes. The detector comprises a case or body of strong rigid plastics material. The case comprises front and rear parts and which are connected together by concealed hinges, at their lower edges, so that the parts and can move hingedly between a closed configuration and a fully open configuration, in which the front and rear parts are angularly spaced by approximately 180°. There is a further defined intermediate open configuration in which the front and rear parts and are angularly spaced by approximately 90°. . . When opening the case from the closed position the hinges ‘lock’ when the front and rear parts reach this intermediate position. The hinges will only ‘unlock’, so that the case can be opened further or closed, if sufficient force is applied.Type: ApplicationFiled: December 18, 2006Publication date: October 15, 2009Applicant: FILTRONA PLCInventors: Philip John Allen, Andrew John Gilbert
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Publication number: 20090152468Abstract: A technique and apparatus for detection of infrared radiation emitted from a taggant material sample following the excitation of the sample are described. The decay time of the radiation is a function of the particular taggant being used and so, if the decay characteristic or signature is accurately measured, the particular taggant can be accurately identified. The apparatus comprises an electronic controller (10), a pair (12) of illuminating light-emitting diodes, a photo-detector (14), a first amplifier (16), a three-way sampling switch (18), filter/stores (20)(a-c), second amplifiers (22)(a-c) and an output display (26). The infrared emission is excited by repeatedly illuminating the material for a period of microseconds every few milliseconds using a very intense source of infrared light. This light is supplied by the pair of 940 nm, light-emitting diodes (12). Once this light source has been turned off, the sample continues radiating infrared light for a few milliseconds.Type: ApplicationFiled: December 18, 2006Publication date: June 18, 2009Applicant: FILTRONA PLCInventors: Philip John Allen, Andrew John Gilbert
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Patent number: D585191Type: GrantFiled: June 16, 2006Date of Patent: January 27, 2009Assignee: Filtrona PlcInventors: Philip John Allen, Andrew John Gilbert, Shane Alastair Day, Clive John Southernwood