Patents Assigned to AIR Ltd.
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Patent number: 9843169Abstract: Bipolar ionizer circuit includes a high voltage AC voltage generator having a high potential output and a low potential output, the high potential output being capacitively coupled to respective high potential inputs of a pair of mutually opposite polarity voltage multipliers and the low potential output being capacitively coupled via an auxiliary capacitor to respective low potential inputs of the voltage multipliers. Outputs of the voltage multipliers are connected to respective ionizing electrodes, and an external ion imbalance indicator is connected in parallel to the auxiliary capacitor, which is thereby able to provide automatic balance of the ion current.Type: GrantFiled: January 21, 2015Date of Patent: December 12, 2017Assignee: FILT AIR LTDInventors: Yefim Riskin, Siegfried Seibold
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Patent number: 9803754Abstract: Disclosed are embodiments of a pinch valve assembly that can include a controller, an actuator assembly, the actuator assembly including a stepper motor, a leadscrew actuated by the stepper motor such that the leadscrew travels in a plurality of incremental linear steps, a piston coupled with the leadscrew such that relative movement of the leadscrew is transferred to the piston, a valve body, where the piston travels within a bore defined by the valve body, a slotted aperture formed in the valve body to retain at least a portion of tubing, and a pin where the piston and the pin are configured to pinch tubing therebetween such that flow within the tubing can be metered.Type: GrantFiled: December 4, 2015Date of Patent: October 31, 2017Assignee: Resolution Air Ltd.Inventor: Bradley Richard Thompson
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Patent number: 9766325Abstract: A laser jammer configured for being a part of a countermeasure system. The system comprises a stage having an axis of rotation and laser source mounted on the stage. The laser source is configured for emitting a laser beam having an optical axis perpendicular to the axis of rotation. The laser has a first spread in a first plane parallel to the rotation axis of the stage and including the optical axis, and a second spread in a second plane perpendicular to the first plane and including the optical axis. The first spread is greater than the second spread.Type: GrantFiled: October 18, 2011Date of Patent: September 19, 2017Assignee: ACTIVE AIR LTD.Inventor: Vladimir Krupkin
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Publication number: 20150300657Abstract: A heat exchange assembly is disclosed. In some embodiments, the heat exchange assembly includes a plurality of profiles arranged in an parallel array, each profile including a first distal portion, a central portion and a second distal portion, with a length and a width of the central portion defining a plane, the first distal portion having a curvature departing from this plane in a first direction, and the second distal portion having a curvature departing from this plane in a second direction that is opposite the first direction. An amount of piping is thermally coupled with and disposed along the length the central portion of each profile. A bracketing system statically anchors the profiles to a surface. Fluid is circulated within the piping to facilitate heat exchange between the assembly and the surrounding environment.Type: ApplicationFiled: September 2, 2014Publication date: October 22, 2015Applicant: Barcol-Air, Ltd.Inventors: Helmuth Sokolean, Martinus George Hoekstra
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Patent number: 9074854Abstract: A countermeasure system for protecting a target against a threat comprising a sensing system including a first sensor(s) for detecting a threat within a wide-angle sector and producing a first directional signal indicative of a first angular zone of the threat location, and a second sensor(s) for detecting the threat within a narrow-angle sector narrower than the wide angle sector and for producing a second directional signal indicative of a relatively narrower second angular zone of the threat location; an illumination source for emitting a beam for neutralizing a threat; a controller for receiving signals from the sensors and for outputting tracking signals; a drive arrangement for moving the second sensor responsive to the first tracking signal to orient the second sensor to face towards the first zone, and beam directing means for directing the beam from the illumination source towards the second zone based on the second tracking signal.Type: GrantFiled: June 13, 2013Date of Patent: July 7, 2015Assignee: ACTIVE AIR LTD.Inventors: Vladimir Krupkin, Shay Shlomi Alagem
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Patent number: 8957571Abstract: Ionizing electrode with a cleaning mechanism including a solenoid with a bushing, a magnetic conductor, a coil housing a core having first and second ends, a return spring and a terminal for high voltage supply mounted on its body. The ionizing electrode is mounted inside the bushing and is configured so that an ionizing end and a non-ionizing end of the electrode protrude from the bushing, the non-ionizing end being fastened to the first end of the solenoid core.Type: GrantFiled: July 10, 2013Date of Patent: February 17, 2015Assignee: Filt Air Ltd.Inventor: Yefim Riskin
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Publication number: 20140147116Abstract: A laser jammer configured for being a part of a countermeasure system. The system comprises a stage having an axis of rotation and laser source mounted on the stage. The laser source is configured for emitting a laser beam having an optical axis perpendicular to the axis of rotation. The laser has a first spread in a first plane parallel to the rotation axis of the stage and including the optical axis, and a second spread in a second plane perpendicular to the first plane and including the optical axis. The first spread is greater than the second spread.Type: ApplicationFiled: October 18, 2011Publication date: May 29, 2014Applicant: ACTIVE AIR LTD.Inventor: Vladimir Krupkin
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Patent number: 8106367Abstract: An ionizer includes a high voltage AC generator, and a planar ion emitter mounted on an insulating substrate and having an array of planar needles that protrude from an edge of the substrate. The high voltage AC generator may be actuated by a switch having a pair of mutually insulated planar contacts located near an edge of the insulating substrate and configured to be contacted by an electrically conductive coil spring. The coil spring is supported by a slider that is moveable toward the ion emitter from an initial position wherein the planar contacts are shorted by the spring so as to actuate the high voltage AC generator. Continued movement of the spring collects dust in its coils while breaking the switch contacts and de-energizing the high voltage AC generator.Type: GrantFiled: December 30, 2009Date of Patent: January 31, 2012Assignee: Filt Air Ltd.Inventor: Yefim Z Riskin
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Patent number: 6857956Abstract: There is provided an airlock system utilizable with a protected Toxic Free Area (TFA) defined by an enclosure including spaced-apart first and second door arrangements, each door arrangement having an entrance and an exit and being divided by partitions into a plurality of sections, an airlock space coupled to, and bridging between, the first and second door arrangement, the exit of the second door being connectable to the protected TFA, while the first door arrangement having its entrance located outside the TFA, the arrangement being such that there is no direct airflow from the entrance of the first door arrangement to the exit of the second door arrangement. A method for facilitating entrance and egress from a Toxic Free Area (TFA) defined by an enclosure, without the danger of contamination of the protected TFA, is also provided.Type: GrantFiled: August 27, 2003Date of Patent: February 22, 2005Assignee: Filt Air Ltd.Inventor: Karl-Hans Fuchs
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Patent number: 5853536Abstract: A method of bleaching a pulp at low consistency employs chlorine dioxide and/or chlorine, to partially bleach the pulp. The aqueous partially bleached pulp flows along a sinuous flow path providing a high ratio of flow path of aqueous pulp to length of effective travel of the aqueous pulp. Ozone is introduced to the aqueous pulp at spaced apart locations in the flow path so that a low partial pressure of ozone is established in the flow path which favors chemical oxidation of the lignin and low chemical attack on cellulose. In this way effective bleaching is achieved with reduced use of chlorine or chlorine dioxide and reduced production of chlorinated compounds.Type: GrantFiled: September 27, 1996Date of Patent: December 29, 1998Assignee: Canadian Liquid Air Ltd./Air Liquide Canada LTEEInventors: Derek Hornsey, John Ayton, Michel Epiney, Gordon Homer
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Patent number: 5759382Abstract: In an electrolysis cell wherein powdered material are added to a bath of molten electrolyte, the anode is provided with a duct through which the powdered material may be fed to the electrolyte. Simultaneously, a gas which is preferably inert, is also fed together with the powdered material through the duct, and both are injected beneath the surface of the electrolyte.Type: GrantFiled: September 20, 1996Date of Patent: June 2, 1998Assignee: Canadian Liquid Air Ltd/Air Liquide Canada LTEEInventors: Torstein Utigard, Alejandro Bustos, Torbjorn Dahl
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Patent number: 5560546Abstract: A multi-part oxy-fuel cutting tip has mixture outlet passages formed in the tip skirt to form grooves. The grooves then cooperate with the tip core to form the outlet passages when the skirt is placed over the tip core. Oppositely directed circumferential inlet passages for the preheat oxygen and fuel promote rapid mixing while producing a non-rotating mixture flow. In addition, the sectional areas of the outlet passages decrease in the flow direction. The tip core has an annular chamfer at its outlet end. These features promote the rapid creation of a laminar mixture flow.Type: GrantFiled: June 5, 1995Date of Patent: October 1, 1996Assignee: Canadian Liquid Air Ltd. - Air Liquide Canada LteeInventors: Richard Goulet, Claude Forest, Michel Landry, Pierre Beaubien, Michael Finkelstein, Viwek V. Vaidya
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Patent number: 5482694Abstract: Provided is a method for regenerating cyanide from thiocyanate. The method comprises contacting the thiocyanate with an oxidizing gas containing ozone, generally a mixture of oxygen and ozone. The pH of the contacting medium is generally less than 7.0 to assure that HCN is the predominant species relative to CN.sup.-. The method has important applications to processes involving cyanidation procedures, such as gold leaching, plating and coal conversion.Type: GrantFiled: August 19, 1994Date of Patent: January 9, 1996Assignee: Canadian Liquid Air Ltd.-Air Liquide Canada Ltee.Inventors: Javier Jara, Heriban Soto, Fabiola Nava
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Patent number: 5467928Abstract: A multi-part oxy-fuel cutting tip has mixture outlet passages formed in the tip skirt to form grooves. The grooves then cooperate with the tip core to form the outlet passages when the skirt is placed over the tip core. Oppositely directed circumferential inlet passages for the preheat oxygen and fuel promote rapid mixing while producing a non-rotating mixture flow. In addition, the sectional areas of the outlet passages decrease in the flow direction. The tip core has an annular chamfer at its outlet end. These features promote the rapid creation of a laminar mixture flow.Type: GrantFiled: October 20, 1993Date of Patent: November 21, 1995Assignee: Canadian Liquid Air Ltd. - Air Liquide Canada LteeInventors: Richard Goulet, Claude Forest, Michel Landry, Pierre Beaubien, Michael Finkelstein, Viwek V. Vaidya
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Patent number: 5382422Abstract: A method and apparatus to prepare and deliver a gas mixture of constant composition of liquid chemical compounds soluble in liquid carbon dioxide to be used as an enhanced attractant for biting insects. The mixtures can be prepared in high pressure vessels where carbon dioxide remains liquified under its own vapor pressure or in low pressure vessels where carbon dioxide is kept liquid, at low pressure, by cooling it with a refrigeration unit. Direct vaporization of the liquid mixture from the vessels results in a gas mixture of constant composition. This mixture is to be delivered in a continuous or pulsed flow to an insect trap. These baited insect traps are an ecological alternative to chemical insecticide methods of insect control currently in use.Type: GrantFiled: October 1, 1991Date of Patent: January 17, 1995Assignees: Canadian Liquid Air Ltd.,, Air Liquide Canada LteeInventors: Jose M. Dieguez, Robert G. H. Lee
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Patent number: 5378322Abstract: In the non-acidic sizing of paper reaction between alkylketene dimer sizing agent and cellulose of cellulosic paper-making fibers is catalyzed by dissolving carbon dioxide in an aqueous vehicle of an aqueous pulp of the paper-making fibers; the carbon dioxide provides bicarbonate ions which catalyse the reaction; the bicarbonate ions may be generated by dissociation of the carbon dioxide in water, or by reaction of the carbon dioxide with calcium carbonate incorporated in the pulp as a filler for the paper, or with some other alkali present.Type: GrantFiled: May 21, 1993Date of Patent: January 3, 1995Assignee: Canadian Liquid Air Ltd.Inventor: Derek Hornsey
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Patent number: 5340136Abstract: A hand cart for transporting gas cylinders has a magnetic bed arrangement for securing the steel cylinders to the cart during the pick-up and transportation operation. A cam-operated discharge arrangement, operated by foot-pedal, serves to separate the cylinders from the permanent magnets of the cylinder bed, permitting withdrawal of the cart from the cylinders, when deposited in an upstanding, working orientation.Type: GrantFiled: September 4, 1992Date of Patent: August 23, 1994Assignee: Canadian Liquid Air Ltd.Inventors: Ralph M. MacNeil, Samir F. Coutya, Mohand Abdelli
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Patent number: 5313039Abstract: A shielding gas for flux cored arc welding. The specific gas combination is intended to promote significantly lower fume emission levels while providing equivalent or better welding performance.Type: GrantFiled: August 3, 1993Date of Patent: May 17, 1994Assignee: Canadian Liquid Air Ltd./Air Liquide Canada Ltee.Inventors: Grant Harvey, Jocelyn Turcot, Jean-Pierre Larue, Viwek V. Vaidya
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Patent number: 5282932Abstract: A fluffy pulp previously dried, having a consistency by 90%, is introduced in a baler where it is subjected to a carbon dioxide comprising atmosphere in order to both reduce or eliminate the fire risk in the baler and to decrease the pH of the pulp by chemically reacting with it. Both gaseous and liquid (snow) carbon dioxide can be used. Preferably, carbon dioxide snow is injected at the bottom of the baler to accelerate the pH control of the pulp, just before compressing the pulp in bales, which compression enhances the pH control reaction between the pulp and the carbon dioxide.Type: GrantFiled: October 19, 1992Date of Patent: February 1, 1994Assignee: Canadian Liquid Air Ltd./Air Liquide Canada LTEEInventor: John R. Ayton
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Patent number: 5273216Abstract: A multi-part oxy-fuel cutting tip has mixture outlet passages formed by swaging the tip skirt to form grooves. The grooves then cooperate with the tip core to form the outlet passages when the skirt is placed over the tip core. Oppositely directed circumferential inlet passages for the preheat oxygen and fuel promote rapid mixing while producing a non-rotating mixture flow. In addition, the sectional areas of the outlet passages decrease in the flow direction. These features promote the rapid creation of a laminar mixture flow.Type: GrantFiled: September 5, 1991Date of Patent: December 28, 1993Assignee: Canadian Liquid Air Ltd. - Air Liquide Canada LteeInventors: Richard Goulet, Claude Forest, Michel Landry, Pierre Beaubien, Michael Finkelstein, Viwek V. Vaidya