Patents by Inventor Karl R. Zawoy
Karl R. Zawoy 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: 9774239Abstract: Embodiments of the subject invention are drawn to power supply units and systems for supplying power to loads. Specific embodiments relate to systems incorporating the loads. The power supply units and systems can include a feedback mechanism for monitoring the system and maintaining a parameter of interest at or near a desired value (e.g., for maintaining the frequency of operation at or near resonance). The feedback mechanism is configured such that, if the at least one parameter indicates that the frequency of operation is away from a resonant frequency of the power amplifier, the feedback mechanism adjusts the frequency of operation closer to the resonant frequency of the power amplifier. The at least one load can have a variable impedance, though embodiments are not limited thereto.Type: GrantFiled: December 24, 2012Date of Patent: September 26, 2017Assignee: University of Florida Research Foundation, IncorporatedInventors: Raul Andres Chinga, Karl R. Zawoy, Subrata Roy, Jenshan Lin
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Devices for thermally induced transformations controlled by irradiation of functionalized fullerenes
Patent number: 9731013Abstract: An electromagnetic radiation activated device comprises a property changing material and at least one functionalized fullerene that upon irradiation of the functionalized fullerenes with electromagnetic radiation of one or more frequencies a thermally activated chemical or physical transformation occurs in the property changing material. The thermal activated transformation of the property changing material is triggered by the heating or combustion of the functionalized fullerenes upon their irradiation. The device can include a chemical agent that is embedded in the property changing material and is released when the material is heated by the functionalized fullerenes upon irradiation.Type: GrantFiled: March 24, 2015Date of Patent: August 15, 2017Assignee: UNIVERSITY OF FLORIDA RESEARCH FOUNDATION, INC.Inventors: Vijay Krishna, Karl R. Zawoy, Brij M. Moudgil, Benjamin L. Koopman, Nathanael Ian Stevens, Kevin William Powers -
Publication number: 20160175243Abstract: The subject invention concerns nanorods, compositions and substrates comprising nanorods, and methods of making and using nanorods and nanorod compositions and substrates. In one embodiment, the nanorod is composed of Zinc oxide (ZnO). In a further embodiment, a nanorod of the invention further comprises SiO2 or TiO2. In a specific embodiment, a nanorod of the invention is composed of ZnO coated with SiO2. Nanorods of the present invention are useful as an adhesion-resistant biomaterial capable of reducing viability in anchorage-dependent cells.Type: ApplicationFiled: January 7, 2015Publication date: June 23, 2016Inventors: TANMAY P. LELE, FAN REN, BENJAMIN G. KESELOWSKY, JIYEON LEE, ANAND GUPTE, BYUNG-HWAN CHU, KARL R. ZAWOY
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Publication number: 20150246149Abstract: A method and apparatus for disinfecting and/or self-sterilizing at least a portion of the surface of a stethoscope is provided. Methods and devices are provided by which a device or apparatus can generate a sterilizing plasma such that a stethoscope, or portion of a stethoscope, can be placed within or near the device or apparatus so that the plasma disinfects and/or sterilizes and/or decontaminates at least a portion of the stethoscope. A method and apparatus are disclosed for providing a self-disinfecting and/or self-sterilizing and/or self-decontaminating stethoscope and stethoscope disinfecting and/or sterilization apparatus for disinfecting and/or sterilizing, respectively, all or at least a portion of a stethoscope.Type: ApplicationFiled: May 12, 2015Publication date: September 3, 2015Inventors: KARL R. ZAWOY, SUBRATA ROY, DANIEL WILLIAM PITUCH
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DEVICES FOR THERMALLY INDUCED TRANSFORMATIONS CONTROLLED BY IRRADIATION OF FUNCTIONALIZED FULLERENES
Publication number: 20150190508Abstract: An electromagnetic radiation activated device comprises a property changing material and at least one functionalized fullerene that upon irradiation of the functionalized fullerenes with electromagnetic radiation of one or more frequencies a thermally activated chemical or physical transformation occurs in the property changing material. The thermal activated transformation of the property changing material is triggered by the heating or combustion of the functionalized fullerenes upon their irradiation. The device can include a chemical agent that is embedded in the property changing material and is released when the material is heated by the functionalized fullerenes upon irradiation.Type: ApplicationFiled: March 24, 2015Publication date: July 9, 2015Inventors: VIJAY KRISHNA, KARL R. ZAWOY, BRIJ M. MOUDGIL, BENJAMIN L. KOOPMAN, NATHANAEL IAN STEVENS, KEVIN WILLIAM POWERS -
Patent number: 9056148Abstract: A method and apparatus for disinfecting and/or self-sterilizing at least a portion of the surface of a stethoscope is provided. Methods and devices are provided by which a device or apparatus can generate a sterilizing plasma such that a stethoscope, or portion of a stethoscope, can be placed within or near the device or apparatus so that the plasma disinfects and/or sterilizes and/or decontaminates at least a portion of the stethoscope. A method and apparatus are disclosed for providing a self-disinfecting and/or self-sterilizing and/or self-decontaminating stethoscope and stethoscope disinfecting and/or sterilization apparatus for disinfecting and/or sterilizing, respectively, all or at least a portion of a stethoscope.Type: GrantFiled: October 27, 2011Date of Patent: June 16, 2015Assignee: University of Florida Research Foundation, Inc.Inventors: Karl R. Zawoy, Subrata Roy, Daniel William Pituch
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Patent number: 8950886Abstract: A solar-powered lighting module is provided, including a solar cell for generating electricity when exposed to light, a battery for storing charge from the generated electricity, and a light generating device powered by the stored charge. In an embodiment, the module further includes a controller that regulates the current transmitted between the components of the module. In a further embodiment, the module is incorporated into an interface to an environmentally controlled space and can be positioned to light an interior portion of the space. In another embodiment, the solar cell and light generating device are transparent to allow light to pass through the interface. In a further embodiment, tinted-color conjugated polymers incorporated into the module limit the spectrum of light that can pass through the interface. In yet another embodiment, a method of modifying an existing interface with such a module is provided.Type: GrantFiled: June 2, 2010Date of Patent: February 10, 2015Assignee: University of Florida Research Foundation, Inc.Inventors: Ying S. Meng, Karl R. Zawoy, Jiangeng Xue, Franky So, John R. Reynolds
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Publication number: 20140346875Abstract: Embodiments of the subject invention are drawn to power supply units and systems for supplying power to loads. Specific embodiments relate to systems incorporating the loads. The power supply units and systems can include a feedback mechanism for monitoring the system and maintaining a parameter of interest at or near a desired value (e.g., for maintaining the frequency of operation at or near resonance). The feedback mechanism is configured such that, if the at least one parameter indicates that the frequency of operation is away from a resonant frequency of the power amplifier, the feedback mechanism adjusts the frequency of operation closer to the resonant frequency of the power amplifier. The at least one load can have a variable impedance, though embodiments are not limited thereto.Type: ApplicationFiled: December 24, 2012Publication date: November 27, 2014Inventors: Raul Andres Chinga, Karl R. Zawoy, Subrata Roy, Jenshan Lin
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Publication number: 20130218049Abstract: A method and apparatus for disinfecting and/or self-sterilizing at least a portion of the surface of a stethoscope is provided. Methods and devices are provided by which a device or apparatus can generate a sterilizing plasma such that a stethoscope, or portion of a stethoscope, can be placed within or near the device or apparatus so that the plasma disinfects and/or sterilizes and/or decontaminates at least a portion of the stethoscope. A method and apparatus are disclosed for providing a self-disinfecting and/or self-sterilizing and/or self-decontaminating stethoscope and stethoscope disinfecting and/or sterilization apparatus for disinfecting and/or sterilizing, respectively, all or at least a portion of a stethoscope.Type: ApplicationFiled: October 27, 2011Publication date: August 22, 2013Applicant: UNIVERSITY OF FLORIDA RESEARCH FOUNDATION, INC.Inventors: Karl R. Zawoy, Subrata Roy, Daniel William Pituch
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Publication number: 20130067909Abstract: A curved multimorph actuator is provided composed of a plurality of materials, each material exhibiting different deformations in response to a stimulus, such as heat. Application of different stimuli causes the actuator to bend and/or twist. In an embodiment, the actuator is capable of rotating an object about its center without significantly shifting the center in one or more dimensions. In a further embodiment, the actuator can be used to rotate an object about a first axis and a second axis, wherein the first axis and the second axis are mutually perpendicular. In an embodiment, rotation about the first axis and the second axis are achieved in combination. In another embodiment, rotation about the first axis is produced in response to a first stimulus and rotation about the second axis is produced in response to a second stimulus.Type: ApplicationFiled: June 1, 2011Publication date: March 21, 2013Applicant: UNIVERSITY OF FLORIDA RESEARCH FOUNDATION, INC.Inventors: Sagnik Pal, Huikai Xie, Karl R. Zawoy
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Publication number: 20120197442Abstract: Embodiments of the subject invention relate to a method and apparatus for stabilizing a moveable element of a device. In an embodiment, a device is provided including a base, an element capable of moving relative to the base, and at least one actuator. Each actuator of the at least one actuator is configured such that when the actuator is driven the actuator moves into a hold position, wherein the actuator limits movement of the element. In a particular embodiment, the at least one actuator holds the element, or a portion of the element, at a particular position, angle, and/or attitude. In an embodiment, the at least one actuator is used to limit movement of the element when the device is turned off. The at least one actuator can be positioned to allow greater movement of the element when the device is turned on.Type: ApplicationFiled: January 26, 2012Publication date: August 2, 2012Applicant: UNIVERSITY OF FLORIDA RESEARCH FOUNDATION INC.Inventors: HUIKAI XIE, Karl R. Zawoy
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Publication number: 20120120643Abstract: A solar-powered lighting module is provided, including a solar cell for generating electricity when exposed to light, a battery for storing charge from the generated electricity, and a light generating device powered by the stored charge. In an embodiment, the module further includes a controller that regulates the current transmitted between the components of the module. In a further embodiment, the module is incorporated into an interface to an environmentally controlled space and can be positioned to light an interior portion of the space. In another embodiment, the solar cell and light generating device are transparent to allow light to pass through the interface. In a further embodiment, tinted-color conjugated polymers incorporated into the module limit the spectrum of light that can pass through the interface. In yet another embodiment, a method of modifying an existing interface with such a module is provided.Type: ApplicationFiled: June 2, 2010Publication date: May 17, 2012Applicant: UNIVERSITY OF FLORIDA RESEARCH FOUNDATION, INC.Inventors: Ying S. Meng, Franky So, Jiangeng Xue, Karl R. Zawoy, John R. Reynolds
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Publication number: 20120116186Abstract: Embodiments of the subject invention relate to a method and apparatus for remote evaluation of a subject's emotive and/or physiological state. Embodiments can utilize a device that can be used to determine the emotional and/or physiological state of a subject through the measurement and analysis of vital signs and/or speech. A specific embodiment relates to a device capable of remotely acquiring a subject's physiological and/or acoustic data, and then correlating and analyzing the data to provide an assessment of a subject's emotional and/or physiological state. In a further specific embodiment, the device can acquire such data, correlate and analyze the data, and provide the assessment of the subject's emotional state and/or physiological in real time.Type: ApplicationFiled: July 20, 2010Publication date: May 10, 2012Applicant: UNIVERSITY OF FLORIDA RESEARCH FOUNDATION, INC.Inventors: Rahul Shrivastav, Jenshan Lin, Karl R. Zawoy, Sona Patel
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Patent number: 5441055Abstract: The guidewire extension wire and connector assembly comprises: a guidewire extension wire having a distal end portion including, extending toward a distal end of the guidewire extension wire, a break-away neck, a reduced-in-diameter stub section and a larger-in-diameter distal stub end; an inner sleeve having an inner end fixed to the guidewire extension wire proximally of the break-away neck and an outer end extending to the larger-in-diameter distal stub end; an outer sleeve having an inner end thereof fixed to the larger-in-diameter distal stub end; and, a fixing mechanism within an outer end of the outer sleeve adapted to engage a generally cylindrical reduced-in-diameter proximal stub end of an initially inserted guidewire.Type: GrantFiled: June 27, 1994Date of Patent: August 15, 1995Assignee: Cordis CorporationInventors: Francisco Ales, Jack C. Conrad, David A. Duvall, Karl R. Zawoy