Patents by Inventor Aaron L. Hill
Aaron L. Hill 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: 9802726Abstract: A system for sterilizing bottles with a gaseous sterilant. The system includes moving means for continuously moving bottles one after another along a path. An assembly is provided for distributing a predetermined amount of the gaseous sterilant from a source of gaseous sterilant to each of the bottles. The assembly includes a plurality of injectors that are movable with the bottles. One of the plurality of injectors is associated with each of the bottles. The injector is fluidly connected to the source of gaseous sterilant when the bottle associated with the injector is disposed along a first portion of the path. The injector is disposed above the bottle when the injector is in a first position. The injector is disposed within an interior of the bottle when the injector is in a second position such that the predetermined amount of the gaseous sterilant is conveyed into the interior of the bottle.Type: GrantFiled: December 3, 2013Date of Patent: October 31, 2017Assignee: American Sterilizer CompanyInventors: Thaddeus J Mielnik, Aaron L Hill
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Patent number: 9213341Abstract: A method for decontaminating a biological safety cabinet with a falling film evaporator. The method includes the steps of: providing a falling-film evaporator within a cavity of a biological safety cabinet, the evaporator having a housing defining a cavity and an evaporation element is disposed in the cavity; conveying a liquid decontaminant from a source of liquid decontaminant to the evaporation element such that the liquid decontaminant flows along a surface of the evaporation element; conveying a carrier gas through the cavity of the housing wherein the carrier gas is conveyed along the surface of the evaporation element to evaporate the liquid decontaminant thereby forming a mixture of the carrier gas and the vaporized decontaminant; and exhausting the mixture into the cavity of the biological safety cabinet to decontaminate articles and surfaces in the cavity.Type: GrantFiled: October 12, 2012Date of Patent: December 15, 2015Assignee: AMERICAN STERILIZER COMPANYInventor: Aaron L. Hill
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Patent number: 9211354Abstract: A system for decontaminating an enclosure that defines a region. The system includes a decontamination unit for generating a vaporized sterilant. The decontamination unit includes a housing that defines a chamber therein. An inlet and an outlet of the housing fluidly communicate with the chamber. A bulkhead assembly connects the decontamination unit to the enclosure. The bulkhead assembly includes a barrier assembly for sealing an opening of the enclosure. The membrane traverses the opening of the enclosure. A first port and a second port allow the carrier gas to flow through the membrane. A frame assembly seals the barrier assembly into the opening of the enclosure. An outlet conduit defines a flow path for conveying the carrier gas from the decontamination unit to the region of the enclosure. A return conduit defines a flow path for conveying the carrier gas from the enclosure to the decontamination unit.Type: GrantFiled: September 26, 2012Date of Patent: December 15, 2015Assignee: AMERICAN STERILIZER COMPANYInventors: Aaron L. Hill, Ryan A. Bruskevith, Leslie M. Logue, William D. Warren
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Patent number: 9005523Abstract: A method of decontaminating a room or space, comprising the steps of providing a cold-mist decontamination device capable of generating an atomized mist comprised of a decontaminant and water, inputting into an internal processor the parameters of the room or space and the concentration of the decontaminant in the decontamination solution, measuring the temperature and humidity in the room or space, and determining the maximum amount of the decontamination solution that can be introduced into the room or space in atomized form without condensing the decontaminant on surfaces within the room or space.Type: GrantFiled: February 28, 2013Date of Patent: April 14, 2015Assignee: American Sterilizer CompanyInventors: Aaron L. Hill, Thaddeus J. Mielnik
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Patent number: 8808631Abstract: A system for conveying a sterilant vapor to a plurality of processing lines having articles moving therealong. The system includes a central source of a sterilant vapor. A conveying device is provided for conveying a sterilant vapor from the central source to a plurality of processing lines. A plurality of sensing devices are provided for sensing a plurality of operational parameters associated with the system and the plurality of processing lines. A controller is provided for receiving signals from the plurality of sensing devices. The controller is programmed to monitor continuously the plurality of sensing devices to determine if an event indicative of a malfunction has occurred with respect to the system or the plurality of processing lines. The controller is programmed to adjust the operation of the system in response to the event to maintain uninterrupted operation of one or more of the plurality of processing lines.Type: GrantFiled: November 15, 2011Date of Patent: August 19, 2014Assignee: American Sterilizer CompanyInventors: Aaron L. Hill, Thaddeus J. Mielnik
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Publication number: 20140105785Abstract: A method for decontaminating a biological safety cabinet with a falling film evaporator, the method comprising the steps of: providing a falling-film evaporator within a cavity of a biological safety cabinet, the evaporator having a housing defining a cavity and an evaporation element disposed in the cavity; conveying a liquid decontaminant from a source of liquid decontaminant to the evaporation element such that the liquid decontaminant flows along a surface of the evaporation element; conveying a carrier gas through the cavity of the housing wherein the carrier gas is conveyed along the surface of the evaporation element to evaporate the liquid decontaminant thereby forming a mixture of the carrier gas and the vaporized decontaminant; and exhausting the mixture into the cavity of the biological safety cabinet to decontaminate articles and surfaces in the cavity.Type: ApplicationFiled: October 12, 2012Publication date: April 17, 2014Applicant: AMERICAN STERILIZER COMPANYInventor: Aaron L. Hill
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Publication number: 20140083051Abstract: A system for sterilizing bottles with a gaseous sterilant. The system includes moving means for continuously moving bottles one after another along a path. An assembly is provided for distributing a predetermined amount of the gaseous sterilant from a source of gaseous sterilant to each of the bottles. The assembly includes a plurality of injectors that are movable with the bottles. One of the plurality of injectors is associated with each of the bottles. The injector is fluidly connected to the source of gaseous sterilant when the bottle associated with the injector is disposed along a first portion of the path. The injector is disposed above the bottle when the injector is in a first position. The injector is disposed within an interior of the bottle when the injector is in a second position such that the predetermined amount of the gaseous sterilant is conveyed into the interior of the bottle.Type: ApplicationFiled: December 3, 2013Publication date: March 27, 2014Applicant: American Sterilizer CompanyInventors: Thaddeus J. Mielnik, Aaron L. Hill
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Patent number: 8621824Abstract: A system for sterilizing bottles with a gaseous sterilant. The system includes moving means for continuously moving bottles one after another along a path. An assembly is provided for distributing a predetermined amount of the gaseous sterilant from a source of gaseous sterilant to each of the bottles. The assembly includes a plurality of injectors that are movable with the bottles. One of the plurality of injectors is associated with each of the bottles. The injector is fluidly connected to the source of gaseous sterilant when the bottle associated with the injector is disposed along a first portion of the path. The injector is disposed above the bottle when the injector is in a first position. The injector is disposed within an interior of the bottle when the injector is in a second position such that the predetermined amount of the gaseous sterilant is conveyed into the interior of the bottle.Type: GrantFiled: September 28, 2010Date of Patent: January 7, 2014Assignee: American Sterilizer CompanyInventors: Thaddeus J. Mielnik, Aaron L. Hill
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Publication number: 20130302208Abstract: A method of decontaminating a room or space, comprising the steps of providing a cold-mist decontamination device capable of generating an atomized mist comprised of a decontaminant and water, inputting into an internal processor the parameters of the room or space and the concentration of the decontaminant in the decontamination solution, measuring the temperature and humidity in the room or space, and determining the maximum amount of the decontamination solution that can be introduced into the room or space in atomized form without condensing the decontaminant on surfaces within the room or space.Type: ApplicationFiled: February 28, 2013Publication date: November 14, 2013Applicant: AMERICAN STERILIZER COMPANYInventors: Aaron L. Hill, Thaddeus J. Mielnik
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Patent number: 8357331Abstract: A sterilization system includes a plurality of vaporizers that are controlled by a network of interconnected controllers. The network includes a plurality of control units with each control unit controlling an associated vaporizer to adjust independently the rate at which the associated vaporizer injects vaporized sterilant into the different regions of an enclosure. The network also includes a master control unit configured to control each control unit over the network to coordinate the aggregate injection of sterilant vapor.Type: GrantFiled: September 30, 2009Date of Patent: January 22, 2013Assignee: American Sterilizer CompanyInventors: Iain F. McVey, Aaron L. Hill
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Patent number: 8349272Abstract: An apparatus for decontaminating articles comprised of: a decontamination chamber; a conveyor for conveying articles to be decontaminated along a first path through the decontamination chamber; a vaporizing unit connected to the decontamination chamber, the vaporizing unit disposed above the decontamination chamber; a blower for conveying a carrier gas through the vaporizing unit and through the decontamination chamber; heating means for heating the carrier gas flowing through the vaporizing unit; a source of liquid hydrogen peroxide fluidly connected to the vaporizing unit; and an injection device for injecting liquid hydrogen peroxide into the vaporizing unit.Type: GrantFiled: September 30, 2011Date of Patent: January 8, 2013Assignee: American Sterilizer CompanyInventor: Aaron L. Hill
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Publication number: 20120134881Abstract: A system for conveying a sterilant vapor to a plurality of processing lines having articles moving therealong. The system includes a central source of a sterilant vapor. A conveying device is provided for conveying a sterilant vapor from the central source to a plurality of processing lines. A plurality of sensing devices are provided for sensing a plurality of operational parameters associated with the system and the plurality of processing lines. A controller is provided for receiving signals from the plurality of sensing devices. The controller is programmed to monitor continuously the plurality of sensing devices to determine if an event indicative of a malfunction has occurred with respect to the system or the plurality of processing lines. The controller is programmed to adjust the operation of the system in response to the event to maintain uninterrupted operation of one or more of the plurality of processing lines.Type: ApplicationFiled: November 15, 2011Publication date: May 31, 2012Inventors: Aaron L. Hill, Thaddeus J. Mielnik
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Publication number: 20120121462Abstract: The disclosed invention relates to a portable decontamination unit. The invention also relates to a decontamination process. The decontamination unit may be ruggedized for use in hostile environments such as those that may be anticipated for military applications.Type: ApplicationFiled: January 25, 2012Publication date: May 17, 2012Inventors: Michael A. Bacik, Aaron L. Hill, Peter J. Buczynski, Richard A. Weiss, Timothy W. Meilander, Paul W. Wiget, Iain F. McVey, Michael A. Centanni
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Patent number: 8163236Abstract: The disclosed invention relates to a portable decontamination unit. The invention also relates to a decontamination process. The decontamination unit may be ruggedized for use in hostile environments such as those that may be anticipated for military applications.Type: GrantFiled: January 25, 2012Date of Patent: April 24, 2012Assignee: Steris Inc.Inventors: Michael A. Bacik, Aaron L. Hill, Peter J. Buczynski, Richard A. Weiss, Timothy W. Meilander, Paul A. Wiget, Iain F. McVey, Michael A. Centanni
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Patent number: 8128888Abstract: The disclosed invention relates to a portable decontamination unit. The invention also relates to a decontamination process. The decontamination unit may be ruggedized for use in hostile environments such as those that may be anticipated for military applications.Type: GrantFiled: February 20, 2008Date of Patent: March 6, 2012Assignee: STERIS Inc.Inventors: Michael A. Bacik, Aaron L. Hill, Peter J. Buczynski, Richard A. Weiss, Timothy W. Meilander, Paul W. Wiget, Iain F. McVey, Michael A. Centanni
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Publication number: 20120020848Abstract: An apparatus for decontaminating articles comprised of: a decontamination chamber; a conveyor for conveying articles to be decontaminated along a first path through the decontamination chamber; a vaporizing unit connected to the decontamination chamber, the vaporizing unit disposed above the decontamination chamber; a blower for conveying a carrier gas through the vaporizing unit and through the decontamination chamber; heating means for heating the carrier gas flowing through the vaporizing unit; a source of liquid hydrogen peroxide fluidly connected to the vaporizing unit; and an injection device for injecting liquid hydrogen peroxide into the vaporizing unit.Type: ApplicationFiled: September 30, 2011Publication date: January 26, 2012Inventor: Aaron L. Hill
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Patent number: 8071021Abstract: A method of decontaminating articles, comprising the steps of: (a) moving a plurality of articles having a known temperature along a first path; (b) conveying a carrier gas along a second path that includes an elongated plenum, the second path intersecting the first path downstream from the plenum; (c) heating the carrier gas to a temperature of at least about 105° C. at a location upstream of the plenum; (d) introducing into the carrier gas in the plenum an atomized mist of a liquid hydrogen peroxide of known concentration; and (e) controlling the following: (1) the volumetric flow of carrier gas along the second path; (2) the volume of hydrogen peroxide introduced into the carrier gas; and (3) the temperature of the carrier gas introduced into the plenum, such that the concentration of the vaporized hydrogen peroxide in the carrier gas where the first path intersects the second path has a dew point temperature below the known temperature of the articles.Type: GrantFiled: April 27, 2007Date of Patent: December 6, 2011Assignee: American Sterilizer CompanyInventor: Aaron L. Hill
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Patent number: 8007717Abstract: A method and apparatus for decontaminating a region with a gaseous or vaporous decontaminant (e.g., vaporized hydrogen peroxide) without dehumidification (e.g., without the use of a dryer). The saturation concentration of the decontaminant inside the region is monitored, and the concentration of the decontaminant inside the region is regulated to prevent condensation of the decontaminant. The bioburden reduction is continuously monitored during a decontamination phase to ascertain successful completion of a decontamination process in accordance with a target bioburden reduction.Type: GrantFiled: August 14, 2007Date of Patent: August 30, 2011Assignee: American Sterilizer CompanyInventor: Aaron L. Hill
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Patent number: 7919059Abstract: A decontamination system for decontaminating a region with a vaporized decontaminant, such as vaporized hydrogen peroxide. The concentration of the vaporized decontaminant within the region is modified in response to operating conditions. The decontamination system adjusts the concentration of the vaporized decontaminant in response to the monitored saturation concentration of the decontaminant, thereby preventing condensation of the vaporized decontaminant during a decontamination cycle. The decontamination system also adjusts the concentration of the vaporized decontaminant in order to minimize the time required to complete a successful decontamination operation.Type: GrantFiled: April 27, 2007Date of Patent: April 5, 2011Assignee: American Sterilizer CompanyInventor: Aaron L. Hill
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Publication number: 20110076189Abstract: A sterilization system includes a plurality of vaporizers that are controlled by a network of interconnected controllers. The network includes a plurality of control units with each control unit controlling an associated vaporizer to adjust independently the rate at which the associated vaporizer injects vaporized sterilant into the different regions of an enclosure. The network also includes a master control unit configured to control each control unit over the network to coordinate the aggregate injection of sterilant vapor.Type: ApplicationFiled: September 30, 2009Publication date: March 31, 2011Inventors: Iain F. McVey, Aaron L. Hill