Patents by Inventor Kemal Ajay
Kemal Ajay 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: 9128047Abstract: A method of detecting particles in an air flow is described. The method includes receiving a signal indicative of light intensity scattered from the air flow at a plurality of wavelengths and processing the signal indicative of the intensity of received light at each of the wavelengths and a corresponding wavelength dependent parameter to generate an output signal indicative of at least one characteristic of particles in the air flow. A particle detection system is also described.Type: GrantFiled: September 4, 2009Date of Patent: September 8, 2015Assignee: Xtralis Technologies LtdInventors: Brian Alexander, Nitin Vayeda, Kemal Ajay
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Publication number: 20150241330Abstract: A particle detection system (100), such as an active video smoke detection system, includes at least one illumination means (102) for directing a beam (106) of radiation through at least part of the air volume being monitored (110), an image sensor (104) is positioned to capture images of at least part of a beam (106) from illumination means (102); and means to analyse (107) the captured images to detect the presence of particles within the volume. At least 29 different aspects are described for improving the sensitivity, usability, and robustness of particle detection. These include, for example, configuring illumination means (102) to create a curtain of light or a rapidly-scanned beam across the air volume (110), and configuring a reflector to steer or change direction of a beam reflected from illumination means (102).Type: ApplicationFiled: April 16, 2015Publication date: August 27, 2015Applicant: Xtralis Technologies Ltd.Inventors: Ron KNOX, Kemal AJAY, Karl BOETTGER
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Publication number: 20150213697Abstract: The invention relates to a particle detector, systems, and methods for detecting the presence of particles in a volume of air, most particularly it relates to detection systems and methods that use multiple modes of detection to detect the presence of particles. Preferably the particles being detected are particles that indicate an actual or incipient fire, or pyrolysis, such as smoke.Type: ApplicationFiled: June 7, 2013Publication date: July 30, 2015Applicant: Xtralis Technologies LtdInventors: Ron Knox, Matthew Naylor, Kemal Ajay, Rajiv Singh
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Patent number: 9057485Abstract: A beam detector including a light source, a receiver, and a target, acting in cooperation to detect particles in a monitored area. The target reflects incident light, resulting in reflected light being returned to receiver. The receiver is capable of recording and reporting light intensity at a plurality of points across its field of view. In the preferred form the detector emits a first light beam in a first wavelength band; a second light beam in a second wavelength band; and a third light beam in a third wavelength band, wherein the first and second wavelengths bands are substantially equal and are different to the third wavelength band.Type: GrantFiled: August 4, 2014Date of Patent: June 16, 2015Assignee: Xtralis Technologies LtdInventors: Ron Knox, Karl Boettger, Kemal Ajay
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Publication number: 20150160175Abstract: The invention provides use of one or more emitted beams of radiation (16), for example, laser beam(s), in combination with an image capturing means (14), for example, one or more video cameras and/or optical elements to detect particles (30), for example, smoke particles, located in an open space (12).Type: ApplicationFiled: February 12, 2015Publication date: June 11, 2015Applicant: Xtralis Technologies Ltd.Inventors: Ron KNOX, Karl BOETTGER, Kemal AJAY
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Publication number: 20150128722Abstract: A method of detecting one or more blocked sampling holes in a pipe of an aspirated smoke detector system. The method includes ascertaining the base flow of fluid through a particle detector using a flow sensor; monitoring subsequent flow through the particle detector; comparing the subsequent flow with the base flow; and indicating a fault if the difference between the base flow and the subsequent flow exceeds a predetermined threshold.Type: ApplicationFiled: October 17, 2014Publication date: May 14, 2015Applicant: Xtralis Technologies Ltd.Inventors: Kemal AJAY, Arjun Vinoo CAPRIHAN, Michael REZNY
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Patent number: 9025144Abstract: A particle detection system (100), such as an active video smoke detection system, includes at least one illumination means (102) for directing a beam (106) of radiation through at least part of the air volume being monitored (110), an image sensor (104) is positioned to capture images of at least part of a beam (106) from illumination means (102); and means to analyze (107) the captured images to detect the presence of particles within the volume. At least 29 different aspects are described for improving the sensitivity, usability, and robustness of particle detection. These include, for example, configuring illumination means (102) to create a curtain of light or a rapidly-scanned beam across the air volume (110), and configuring a reflector to steer or change direction of a beam reflected from illumination means (102).Type: GrantFiled: November 14, 2008Date of Patent: May 5, 2015Assignee: Xtralis Technologies Ltd.Inventors: Ron Knox, Kemal Ajay, Karl Boettger
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Patent number: 9007223Abstract: The invention provides use of one or more emitted beams of radiation (16), for example, laser beam(s), in combination with an image capturing means (14), for example, one or more video cameras and/or optical elements to detect particles (30), for example, smoke particles, located in an open space (12).Type: GrantFiled: July 8, 2013Date of Patent: April 14, 2015Assignee: Xtralis Technologies Ltd.Inventors: Ron Knox, Karl Boettger, Kemal Ajay
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Publication number: 20140340892Abstract: A beam detector including a light source, a receiver, and a target, acting in cooperation to detect particles in a monitored area. The target reflects incident light, resulting in reflected light being returned to receiver. The receiver is capable of recording and reporting light intensity at a plurality of points across its field of view. In the preferred form the detector emits a first light beam in a first wavelength band; a second light beam in a second wavelength band; and a third light beam in a third wavelength band, wherein the first and second wavelengths bands are substantially equal and are different to the third wavelength band.Type: ApplicationFiled: August 4, 2014Publication date: November 20, 2014Inventors: Ron Knox, Karl Boettger, Kemal Ajay
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Patent number: 8892399Abstract: A method of detecting one or more blocked sampling holes in a pipe of an aspirated smoke detector system. The method includes ascertaining the base flow of fluid through a particle detector using a flow sensor; monitoring subsequent flow through the particle detector; comparing the subsequent flow with the base flow; and indicating a fault if the difference between the base flow and the subsequent flow exceeds a predetermined threshold.Type: GrantFiled: July 9, 2012Date of Patent: November 18, 2014Assignee: XTralis Technologies LtdInventors: Kemal Ajay, Arjun Vinoo Caprihan, Michael Rezny
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Publication number: 20140306113Abstract: A particle detection system including; at least one light source adapted to illuminate a volume being monitored at at least two wavelengths; a receiver having a field of view and being adapted to receive light from at least one light source after said light has traversed the volume being monitored and being adapted to generate signals indicative of the intensity of light received at regions within the field of view of the receiver; a processor associated with the receiver adapted to process the signals generated by the receiver to correlate light received at at least two wavelengths in corresponding regions within the field of view of the receiver and generate an output indicative of the relative level of light received at the two wavelengths.Type: ApplicationFiled: June 27, 2014Publication date: October 16, 2014Inventors: Ron Knox, Karl Boettger, Kemal Ajay
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Patent number: 8804119Abstract: A particle detection system including; at least one light source adapted to illuminate a volume being monitored at at least two wavelengths; a receiver having a field of view and being adapted to receive light from at least one light source after said light has traversed the volume being monitored and being adapted to generate signals indicative of the intensity of light received at regions within the field of view of the receiver; a processor associated with the receiver adapted to process the signals generated by the receiver to correlate light received at at least two wavelengths in corresponding regions within the field of view of the receiver and generate an output indicative of the relative level of light received at the two wavelengths.Type: GrantFiled: June 10, 2009Date of Patent: August 12, 2014Assignee: Xtralis Technologies LtdInventors: Ron Knox, Karl Boettger, Kemal Ajay
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Patent number: 8797531Abstract: A beam detector (10) including a light source (32), a receiver (34), and a target (36), acting in co-operation to detect particles in a monitored area (38). The target (36), reflects incident light (40), resulting in reflected light (32) being returned to receiver (34). The receiver (34) is a receiver is capable of recording and reporting light intensity at a plurality of points across its field of view. In the preferred form the detector (10) emits a first light beam (3614) in a first wavelength band; a second light beam (3618) in a second wavelength band; and a third light beam (3616) in a third wavelength band, wherein the first and second wavelengths bands are substantially equal and are different to the third wavelength band.Type: GrantFiled: May 3, 2010Date of Patent: August 5, 2014Assignee: Xtralis Technologies LtdInventors: Ron Knox, Karl Boettger, Kemal Ajay
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Publication number: 20140197956Abstract: A system and method of reducing the incidence of false alarms attributable to dust in smoke detection apparatus. The method includes obtaining at least two sample air flows, subjecting a first airflow to particle reduction and measuring the level of particles in the first airflow and generating a first signal indicative of the intensity. The method also includes measuring the level of particles in the second airflow and generating a second signal indicative of the intensity. The first signal is compared to a predetermined alarm level and, if the alarm level is achieved, the first and second signals are subsequently compared and an output signal is generated based on the relative difference between the first and second signals.Type: ApplicationFiled: June 21, 2012Publication date: July 17, 2014Applicant: Xtralis Technologies Ltd.Inventors: Brian Alexander, Kemal Ajay
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Publication number: 20140022547Abstract: The invention provides use of one or more emitted beams of radiation (16), for example, laser beam(s), in combination with an image capturing means (14), for example, one or more video cameras and/or optical elements to detect particles (30), for example, smoke particles, located in an open space (12).Type: ApplicationFiled: July 8, 2013Publication date: January 23, 2014Inventors: Ron KNOX, Karl BOETTGER, Kemal AJAY
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Patent number: 8508376Abstract: The invention provides use of one or more emitted beams of radiation (16), for example, laser beam(s), in combination with an image capturing means (14), for example, one or more video cameras and/or optical elements to detect particles (30), for example smoke particles, located in an open space (12).Type: GrantFiled: November 14, 2005Date of Patent: August 13, 2013Assignee: VFS Technologies LimitedInventors: Ron Knox, Karl Boettger, Kemal Ajay
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Publication number: 20130199270Abstract: A sensing system and method for detecting particles in an air volume includes a main airflow path including an inlet from the air volume. Also included is a collection site within the main airflow path. The collection site is for drawing an air sample from the main airflow path. Additionally the system includes a means to induce a localized increase in particle speed at the collection site relative to air speed along the remainder of the main airflow path. The means to induce a localized increase includes an auxiliary airflow path from the main airflow path. The auxiliary airflow path has an exit upstream of the collection site. In an alternative form of the invention, the means to induce the localized increase in particle speed at the collection site comprises a venturi in the main airflow path with the collection site being disposed along the venturi.Type: ApplicationFiled: March 3, 2011Publication date: August 8, 2013Applicant: Xtralis Technologies LtdInventors: Rajiv Kumar Singh, Kemal Ajay
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Publication number: 20130192341Abstract: A particle separation system for separating particles in an airflow upstream of a detection chamber in an aspirating smoke detector is disclosed. The particle separation system includes an airflow path for directing the airflow from an inlet to an outlet. The airflow path includes a first airflow path section in a first direction and a second airflow path section in a second direction, the first and second directions being different relative to each other. The airflow path also includes at least one electrically charged surface such that the airflow undergoes electrostatic precipitation as it traverses the airflow path. A method of separating particles in an airflow upstream of a detection chamber in an aspirating smoke detector is also disclosed.Type: ApplicationFiled: March 3, 2011Publication date: August 1, 2013Applicant: Xtralis Techhnologies Ltd 2nd FloorInventors: Kemal Ajay, Brian Alexander
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Publication number: 20130061659Abstract: There is described a filter arrangement for a particle detector for detecting particles in an environment. The particle detector can include one or more sensors for analyzing fluid in a detection region to produce sensor output. The filter arrangement includes structure defining flow paths, for conveying fluid from the environment towards the detection region, including a first flow path, which includes a filter, and a second flow path bypassing the filter. There is also provided a mechanism for controlling relative flow rates of fluid through the first flow path and the second flow path and a controller configured to receive the sensor output corresponding to at least two relative flow rates and apply logic thereto to generate an output indicative of a condition of the filter.Type: ApplicationFiled: March 4, 2011Publication date: March 14, 2013Applicant: Xtralis Technologies Ltd.Inventors: Kemal Ajay, Nitin Vaveda
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Publication number: 20130013227Abstract: A method of detecting one or more blocked sampling holes in a pipe of an aspirated smoke detector system. The method includes ascertaining the base flow of fluid through a particle detector using a flow sensor; monitoring subsequent flow through the particle detector; comparing the subsequent flow with the base flow; and indicating a fault if the difference between the base flow and the subsequent flow exceeds a predetermined threshold.Type: ApplicationFiled: July 9, 2012Publication date: January 10, 2013Applicant: VISION FIRE & SECURITY PTY LTDInventors: KEMAL AJAY, Arjun Vinoo Caprihan, Michael Rezny