Patents by Inventor Yechiel Spector
Yechiel Spector 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: 7638770Abstract: A method of detecting a fire condition in a monitored region including the operations of: concurrently monitoring the region using: a plurality of fire combustion product emission band sensors, each band sensor sensitive to radiation within a respective waveband which includes at least part of a respective fire combustion product emission band of a plurality of fire combustion products, the plurality of fire combustion products equal to n; a first reference band sensor sensitive to radiation within a first reference waveband which includes at least some wavelengths shorter than the n fire combustion product emission bands; and a second reference band sensor sensitive to radiation within a second reference waveband which includes at least some wavelengths longer than the n fire combustion product emission bands; and using the band sensors to obtain n+2 measurement values of radiation intensity emitted from the monitored region in determining the presence or absence of the fire condition.Type: GrantFiled: March 23, 2008Date of Patent: December 29, 2009Assignee: Spectronix Ltd.Inventors: Shaul Serero, David Cohen, Oded Spector, Yechiel Spector
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Patent number: 6061141Abstract: A method of detecting the presence of a predetermined vapor of a predetermined concentration in a monitored area, the method including the steps of (a) exposing gas in or from the monitored area to radiation at wavelengths at least covering and surrounding from both sides a main absorption peak of the vapor; (b) simultaneously sensing the radiation after passing through the gas by a signal sensor and a reference sensor, each of the sensors including a radiation sensing element, wherein the signal sensor further includes a first optical filter passing wavelengths covering the main absorption peak, yet substantially blocking wavelengths from both sides of the main absorption peak of the vapor, whereas the reference sensor further includes a second optical filter passing wavelengths surrounding from both sides the main absorption peak, yet substantially blocking wavelengths covering the main absorption peak of the vapor; and (c) comparing signals obtained from the signal and reference sensors for determining a pType: GrantFiled: January 20, 1998Date of Patent: May 9, 2000Assignee: Spectronix Ltd.Inventors: Ephraim Goldenberg, Shaul Serero, David Cohen, Yechiel Spector, Esther Jacobson
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Patent number: 5610359Abstract: A method of generating nontoxic smoke is taught. The method comprises: (a) submerging a nontoxic smoke creating device in a liquid coolant while preventing entry of coolant into said device; said device includes a composition which comprises: (1) a first reactant selected from the group consisting of potassium chlorate, potassium perchlorate, potassium dichromate, cesium nitrate, and potassium nitrate; and (2) a second reactant serving as a reduction agent; (b) activating said smoke creating device by reacting said composition comprising said first reactant and said second reactant, to create solid particulate products having a diameter of about one micron or less which create the nontoxic smoke; and (c) passing said solid particulate products into said coolant through at least one downwardly directed tuyere hydraulically connected at or near the top of said device without any accompanied destruction of said nontoxic smoke creating device.Type: GrantFiled: October 25, 1994Date of Patent: March 11, 1997Inventors: Yechiel Spector, Esther Jacobson, Vida Naishtut, Michael Vittenberg, Zohar Beinert
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Patent number: 5588493Abstract: A method of extinguishing a fire, which includes pre-positioning a fire extinguishing device which includes at least two reactants such that when the reactants are activated they react to create solid particulate products having a diameter of about one micron or less such that, when the products come in contact with the fire they chemically inhibit the chain reactions of the fire flame and bring about the extinguishing of the fire. In one embodiment, the device is submerged in a liquid coolant and includes means for preventing entry of coolant into the device while allowing the escape of said products into the coolant when activated. Another embodiment is used to generate non-toxic smoke using a device which includes a first reactant which is potassium chlorate, potassium perchlorate, potassium dichromate, cesium nitrate or potassium nitrate, and a second reactant serving as a reduction agent.Type: GrantFiled: October 25, 1994Date of Patent: December 31, 1996Assignee: Spectronix Ltd.Inventors: Yechiel Spector, Esther Jacobson, Vida Naishtut, Michael Vittenberg, Zohar Beinert
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Patent number: 5492179Abstract: A system for extinguishing a fire in a volume includes a fire extinguishing device for delivery from a distance into communication with the volume, the device including a composition which includes a first reactant and a second reactant. The composition is activated so as to cause the first reactant and the second reactant to react with each other to create solid particulate products having a diameter of about one micron or less which are effective in extinguishing fires. The device includes a convoluted path defined by a plurality of metal protrusions through which the products are made to travel, the path serving as a flame arrestor.Type: GrantFiled: October 25, 1994Date of Patent: February 20, 1996Assignee: Spectronix Ltd.Inventors: Yechiel Spector, Esther Jacobson, Vida Naishtut, Michael Vittenberg, Zohar Beinert
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Patent number: 5492180Abstract: A method for extinguishing a fire in a volume having walls or other surfaces includes pre-positioning a fire-extinguishing device in communication with the volume. The device includes a solid-fuel composition comprising a first reactant and a second reactant. The pre-positioning of the method comprises painting or coating the composition on surfaces of the walls or on the other surfaces of the volume. A coolant material may also be painted over the pre-positioned composition. The composition is activated by igniting it so as to cause the first and second reactants to react with each other to create an aerosol of solid particulate products having a diameter of about one micron or less. The solid particulate products of the aerosol are effective in extinguishing the fire by chemically inhibiting the chain reactions of the fire.Type: GrantFiled: October 25, 1994Date of Patent: February 20, 1996Assignee: Spectronix Ltd.Inventors: Yechiel Spector, Esther Jacobson, Vida Naishtut, Michael Vittenberg, Zohar Beinert
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Patent number: 5441114Abstract: A system for extinguishing a fire includes a conventional fire extinguishing cylinder for releasing a pressurized fire extinguishing gas, and a device including a composition which includes a first reactant and a second reactant. The composition is activated so as to cause the first reactant and the second reactant to react with each other to create solid particulate products having a diameter of about one micron or less which are effective in extinguishing fires. The device is located so that the fire extinguishing gas and the particulate products intermix.Type: GrantFiled: October 25, 1994Date of Patent: August 15, 1995Assignee: Spectronix Ltd.Inventors: Yechiel Spector, Esther Jacobson, Vida Naishtut, Michael Vittenberg, Zohar Beinert
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Patent number: 5425426Abstract: Methods and related systems for extinguishing a fire in a volume which includes pre-positioning a fire extinguishing medium in or near the volume. The medium includes at least two reactants, typically an oxidant and a reducing agent which are activated manually or automatically in response to the fire causing the two reactants to react with each other and to form an aerosol capable of interacting with the propagation centers of the fire, interrupting the propagation of the fire, and thereby extinguishing it.Type: GrantFiled: September 14, 1993Date of Patent: June 20, 1995Assignee: Spectronix Ltd.Inventors: Anatoly Baratov, Iousef Myshak, Yechiel Spector, Ester Jacobson
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Patent number: 5423385Abstract: Methods and related systems for extinguishing a fire in a volume which includes pre-positioning a fire extinguishing medium in or near the volume. The medium includes at least two reactants, typically an oxidant and a reducing agent which are activated manually or automatically in response to the fire causing the two reactants to react with each other and to form an aerosol capable of interacting with the propagation centers of the fire, interrupting the propagation of the fire, and thereby extinguishing it. The methods and systems further include various mechanisms for cooling the gases formed upon the reaction of the two reactants so as to enable the gases to disperse more evenly and more effectively over the fire.Type: GrantFiled: September 14, 1993Date of Patent: June 13, 1995Assignee: Spectronix Ltd.Inventors: Anatoly Baratov, Iousef Myshak, Yechiel Spector, Esther Jacobson
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Patent number: 5281816Abstract: A method and apparatus for detecting the presence of a predetermined hydrocarbon vapour of a predetermined concentration in a monitored area by: exposing gas in or from the monitored area to radiation from a Xenon flashlamp which includes ultraviolet radiation of a predetermined ultraviolet spectral range and infrared radiation of a predetermined infrared spectral range; detecting the radiation after having passed through the gas; and comparing the detected radiation with a reference of predetermined attenuation characteristics of the hydrocarbon vapour and concentration in the respective ultraviolet and infrared spectral range.Type: GrantFiled: April 6, 1992Date of Patent: January 25, 1994Assignee: Spectronix Ltd.Inventors: Esther Jacobson, Yechiel Spector, Ephraim Goldberg
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Patent number: 5124709Abstract: A method and apparatus for detecting the occurrence of a fire or an explosion in a monitored space, or the penetration of a projectile through a barrier, by: transmitting to the monitored space an electromagnetic signal of at least one radio frequency; receiving the transmitted signal as scattered by the monitored space; and analyzing at least one parameter of the received signal to produce an indication whether a fire or explosion has occurred, or a projectile has penetrated through a barrier, in the monitored space.Type: GrantFiled: July 15, 1991Date of Patent: June 23, 1992Assignee: Spectronix Ltd.Inventors: Reuven Baron, Yechiel Spector
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Patent number: 5090482Abstract: A method of extinguishing a fire by generating an intense electric field and/or a gaseous plasma constituted of a body of electrically-charged particles, and directing the electric field and/or plasma to the base of the fire until the fire is extinguished.Type: GrantFiled: December 26, 1990Date of Patent: February 25, 1992Assignee: Spectronix Ltd.Inventors: Reuven Baron, Esther Jacobson, Yechiel Spector
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Patent number: 4765244Abstract: Detection apparatus which is sensitive both to radiation and to the proximity of the radiation source, as well as destruction apparatus embodying detection apparatus.Type: GrantFiled: March 6, 1986Date of Patent: August 23, 1988Assignee: Spectronix Ltd.Inventors: Yechiel Spector, Ilan Cohen, Azriel Lorber
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Patent number: 4677294Abstract: Self-calibrating radiation detection apparatus comprising a detector element and calibration apparatus for maintaining a generally constant response of the detector element to a predetermined radiation input notwithstanding changes in the level of background radiation sensed by the detector element. There is also provided control apparatus for operating a plurality of radiation detectors including apparatus for disabling the output of the detectors in response to a continuing radiation input of predetermined duration.Type: GrantFiled: September 4, 1980Date of Patent: June 30, 1987Assignee: Spectronix Ltd.Inventors: Yechiel Spector, Amiram Peleg, Ilan Cohen
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Patent number: 4569399Abstract: A protective barrier or enclosure comprising a protective wall element including inner and outer wall portions, a protective liquid located between the inner and outer wall portions, the protective liquid being characterized in that it absorbs a significant amount of kinetic energy from a moving projectile passing therethrough, causing a pressure buildup in the liquid.Type: GrantFiled: July 11, 1984Date of Patent: February 11, 1986Assignee: Spectronix Ltd.Inventors: Yechiel Spector, Amos Gonen, Shimon Raviv
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Patent number: 4270613Abstract: A fire and explosion suppression system which is operative for suppressing an explosion within 100 milliseconds of the existence of a high energy ignition and within 200 milliseconds of the existence of a low energy ignition. Respective output signals from a detector of ultraviolet radiation and a detector of infrared radiation are fed to a logical AND circuit to provide a third output signal indicative of simultaneous receipt of ultraviolet and infrared radiations. Actuation apparatus responsive to the third output signal then actuates extinguishing agent distribution apparatus for discharging an extinguishing agent into the volume to be protected, such as the troop compartment and/or the engine compartment of an armored vehicle.Type: GrantFiled: May 3, 1978Date of Patent: June 2, 1981Inventors: Dov Spector, Yechiel Spector
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Patent number: 4263971Abstract: Suppression apparatus comprises a plurality of pressurized containers of fire extinguishing material arranged in the troop and/or engine compartment of an armored vehicle, the containers having pressure sensors which provide output indications of their operability and their discharge. In rapid response to an alarm indication and to the output indications, logic circuitry initially selects at least one container indicated to be operable, actuates this container to discharge its extinguishing material and, in the absence of an ouput indication of its discharge, actuates an additional container for discharge of extinguishing material therefrom.Type: GrantFiled: May 3, 1978Date of Patent: April 28, 1981Inventors: Dov Spector, Yechiel Spector
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Patent number: 4199682Abstract: Fire and explosion detection apparatus comprises an ultra violet detector providing a first output signal in response to receipt of ultra violet radiation and an infra red detector providing a second output signal in response to receipt of infra red radiation. A logical AND circuit, in response to simultaneously occurring first and second output signals, provides a third output signal indicative of simultaneous receipt of ultra violet and infra red radiation.Type: GrantFiled: May 3, 1978Date of Patent: April 22, 1980Assignee: Spectronix Ltd.Inventors: Dov Spector, Yechiel Spector