Patents by Inventor Dharendra Yogi Goswami
Dharendra Yogi Goswami 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: 11844966Abstract: A breathing system for removing harmful contaminants, such as microbes and volatile organic compounds, is provided. The breathing system includes a face mask, an inhalation limb, and a plasmonic device. As a contaminated gas flows through an internal chamber of the plasmonic device, the contaminates are oxidized. Specifically, the internal chamber includes a source of photons spaced apart from the nanostructure. The nanostructure is coated in a plasmonic layer, including noble metal nanoparticles. The plasmonic layer is protected from oxidation through a photocatalyst layer disposed thereon.Type: GrantFiled: March 3, 2021Date of Patent: December 19, 2023Assignees: University of South Florida, MOLEKULE, INC.Inventors: Dharendra Yogi Goswami, Dilip Neeraj Goswami
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Patent number: 11808290Abstract: A fluid flow conditioning apparatus having self-adjusting tab members that reduce flow losses within a conduit. A plurality of tabular members is affixed to an insertion plate-type flow conditioner. Tabular members are cojoined in pairs at their leading edges. When the cojoined pair of the first tabular member and the second tabular member are placed into a fluid flow, an angle between the first tabular member and the second tabular member is configured to decrease in response to static and dynamic pressure exerted onto the outer surfaces of the tabular members by the fluid flow. The tabular members may be made of a hyperplastic material configured to undergo an elastic deformation and exhibit flapping due to the dynamic pressure of the fluid flow. Tabular members maybe cojoined by a hinge configured to partially close in response to pressure exerted by the fluid flow, decreasing the angle between the tabular members.Type: GrantFiled: December 20, 2021Date of Patent: November 7, 2023Assignee: University of South FloridaInventors: Rajat Mittal, Dharendra Yogi Goswami
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Publication number: 20210275838Abstract: A breathing system for removing harmful contaminants, such as microbes and volatile organic compounds, is provided. The breathing system includes a face mask, an inhalation limb, and a plasmonic device. As a contaminated gas flows through an internal chamber of the plasmonic device, the contaminates are oxidized. Specifically, the internal chamber includes a source of photons spaced apart from the nanostructure. The nanostructure is coated in a plasmonic layer, including noble metal nanoparticles. The plasmonic layer is protected from oxidation through a photocatalyst layer disposed thereon.Type: ApplicationFiled: March 3, 2021Publication date: September 9, 2021Inventors: Dharendra Yogi Goswami, Dilip Neeraj Goswami
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Patent number: 10864294Abstract: Photocatalysis is a promising technique for remediation of indoor air pollution. The present invention focuses on the enhancement of the effectiveness of the photocatalytic process by the introduction of artificial roughness on the interior reactor surface. Artificial roughness elements on the catalytic surface enhance the turbulence intensity close to the catalytic surface. The enhanced turbulence intensity translates to an increase in the mass transfer of airborne contaminants to the catalyst surface, improving the efficiency of photocatalysis.Type: GrantFiled: August 22, 2017Date of Patent: December 15, 2020Assignee: University of South FloridaInventors: Dharendra Yogi Goswami, Elias K. Stefanakos, Yangyang Zhang
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Patent number: 10854352Abstract: In one embodiment, a method for forming a conducting film includes depositing a base layer of a conducting polymer on a substrate, the polymer forming only a weak bond with the substrate, depositing a top layer of a conducting material on the base layer, applying adhesive tape to the top layer, and peeling the tape off of the substrate, removing the top layer along with the tape.Type: GrantFiled: October 22, 2015Date of Patent: December 1, 2020Assignee: UNIVERSITY OF SOUTH FLORIDAInventors: Manoj Kumar Ram, Elias K. Stefanakos, Dharendra Yogi Goswami
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Patent number: 10690121Abstract: In one embodiment, a thermodynamic system includes multiple types of thermodynamic cycles and multiple types of solar thermal fields that provide thermal energy to the thermodynamic cycles.Type: GrantFiled: October 31, 2012Date of Patent: June 23, 2020Assignee: University of South FloridaInventors: Dharendra Yogi Goswami, Elias K. Stefanakos, Nitin Goel
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Patent number: 10494555Abstract: In one embodiment, a method for fabricating a ceramic phase change material capsule includes forming a solid phase change material pellet, coating the pellet with a green ceramic material, and sintering the green ceramic material while on the pellet to form a ceramic outer shell of the capsule.Type: GrantFiled: January 5, 2018Date of Patent: December 3, 2019Assignee: University of South FloridaInventors: Dharendra Yogi Goswami, Elias K. Stefanakos, Chand K. Jotshi, Jaspreet Dhau
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Patent number: 10267571Abstract: In some embodiments, a thermal energy storage system includes multiple thermal energy storage containers adapted to store thermal energy storage media, the containers having high emissivity inner surfaces that are adapted to radiate heat into the stored thermal energy storage media.Type: GrantFiled: January 31, 2013Date of Patent: April 23, 2019Assignee: University of South FloridaInventors: Burton Krakow, Elias K. Stefanakos, Dharendra Yogi Goswami
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Patent number: 9889221Abstract: Photocatalysis is a promising technique for remediation of indoor air pollution. The present invention focuses on the enhancement of the effectiveness of the photocatalytic process by the introduction of artificial roughness on the interior reactor surface. Artificial roughness elements on the catalytic surface enhance the turbulence intensity close to the catalytic surface. The enhanced turbulence intensity translates to an increase in the mass transfer of airborne contaminants to the catalyst surface, improving the efficiency of photocatalysis.Type: GrantFiled: October 10, 2014Date of Patent: February 13, 2018Assignee: University of South FloridaInventors: Dharendra Yogi Goswami, Elias K. Stefanakos, Yangyang Zhang
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Patent number: 9879166Abstract: In one embodiment, a method for fabricating a ceramic phase change material capsule includes forming a hollow ceramic capsule body having a filling hole, filling the ceramic capsule body with one or more phase change materials via the filling hole, and closing and sealing the filling hole.Type: GrantFiled: June 16, 2015Date of Patent: January 30, 2018Assignee: University of South FloridaInventors: Dharendra Yogi Goswami, Elias K. Stefanakos, Chand K. Jotshi, Jaspreet Dhau
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Patent number: 9493695Abstract: Storage systems based on latent heat storage have high-energy storage density, which reduces the footprint of the system and the cost. However, phase change materials (PCMs), such as NaNO3, NaCl, KNO3, have very low thermal conductivities. To enhave the storage of PCMs, macroencapsulation of PCMs was performed using a metal oxide, such as SiO2 or a graphene-SiO2, over polyimide-coated or nickel-embedded, polyimide-coated pellets The macro encapsulation provides a self-supporting structure, enhances the heat transfer rate, and provides a cost effective and reliable solution for thermal energy storage for use in solar thermal power plants. NaNO3 was selected for thermal storage in a temperature range of 300° C. to 500° C. The PCM was encapsulated in a metal oxide cell using self-assembly reactions, hydrolysis, and simultaneous chemical oxidation at various temperatures.Type: GrantFiled: January 21, 2014Date of Patent: November 15, 2016Assignee: University of South FloridaInventors: Manoj Kumar Ram, Chand K. Jotshi, Elias K. Stefanakos, Dharendra Yogi Goswami
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Publication number: 20130192792Abstract: In some embodiments, a thermal energy storage system includes multiple thermal energy storage containers adapted to store thermal energy storage media, the containers having high emissivity inner surfaces that are adapted to radiate heat into the stored thermal energy storage media.Type: ApplicationFiled: January 31, 2013Publication date: August 1, 2013Inventors: Burton Krakow, Elias K. Stefanakos, Dharendra Yogi Goswami
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Publication number: 20130104546Abstract: In one embodiment, a thermodynamic system includes multiple types of thermodynamic cycles and multiple types of solar thermal fields that provide thermal energy to the thermodynamic cycles.Type: ApplicationFiled: October 31, 2012Publication date: May 2, 2013Inventors: Dharendra Yogi Goswami, Elias K. Stefanakos, Nitin Goel
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Publication number: 20130105106Abstract: In one embodiment, a thermal energy storage system includes a first cascade containing a first phase change material and a second cascade containing a second phase change material, wherein the melting point of the first phase change material is different than the melting point of the second phase material.Type: ApplicationFiled: October 31, 2012Publication date: May 2, 2013Inventors: Dharendra Yogi Goswami, Elias K. Stefanakos, Nitin Goel
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Patent number: 7635450Abstract: A system for disinfecting a fluid containing microorganisms or chemical contaminants includes a plurality of photocatalyst surfaces secured to a solid surface upon which a fluid to be disinfected contacts. A structure for removing a portion of the photogenerated electrons is in electrical contact with the photocatalyst layer, wherein an electron-hole recombination rate involving the photogenerated electrons and holes is reduced, thus increasing the removal rate of microorganisms or chemical contaminants from the fluid. The system can include a source of photons having a wavelength corresponding to a band gap energy of the photocatalyst to illuminate the photocatalyst layer. The invention can be used in air supply registers of a heating, ventilating and air conditioning system, or in air ducts, or used to disinfect wall coverings, floor coverings, envelopes, packages, and clothing articles.Type: GrantFiled: April 26, 2006Date of Patent: December 22, 2009Assignee: University of Florida Research Foundation, Inc.Inventor: Dharendra Yogi Goswami
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Patent number: 7371351Abstract: A system for disinfecting a fluid containing microorganisms or chemical contaminants includes a plurality of photocatalyst surfaces secured to a solid surface upon which a fluid to be disinfected contacts. A structure for removing a portion of the photogenerated electrons is in electrical contact with the photocatalyst layer, wherein an electron-hole recombination rate involving the photogenerated electrons and holes is reduced, thus increasing the removal rate of microorganisms or chemical contaminants from the fluid. The system can include a source of photons having a wavelength corresponding to a band gap energy of the photocatalyst to illuminate the photocatalyst layer. The invention can be used in air supply registers of a heating, ventilating and air conditioning system, or in air ducts, or used to disinfect wall coverings, floor coverings, envelopes, packages, and clothing articles.Type: GrantFiled: April 26, 2006Date of Patent: May 13, 2008Assignee: University of Florida Research Foundation, Inc.Inventor: Dharendra Yogi Goswami
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Patent number: 7063820Abstract: A system for disinfecting a fluid containing microorganisms or chemical contaminants includes a plurality of photocatalyst surfaces secured to a solid surface upon which a fluid to be disinfected contacts. A structure for removing a portion of the photogenerated electrons is in electrical contact with the photocatalyst layer, wherein an electron-hole recombination rate involving the photogenerated electrons and holes is reduced, thus increasing the removal rate of microorganisms or chemical contaminants from the fluid. The system can include a source of photons having a wavelength corresponding to a band gap energy of the photocatalyst to illuminate the photocatalyst layer. The invention can be used in air supply registers of a heating, ventilating and air conditioning system, or in air ducts, or used to disinfect wall coverings, floor coverings, envelopes, packages, and clothing articles.Type: GrantFiled: June 16, 2003Date of Patent: June 20, 2006Assignee: University of Florida Research Foundation, Inc.Inventor: Dharendra Yogi Goswami
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Publication number: 20040251122Abstract: A system for disinfecting a fluid containing microorganisms or chemical contaminants includes a plurality of photocatalyst surfaces secured to a solid surface upon which a fluid to be disinfected contacts. A structure for removing a portion of the photogenerated electrons is in electrical contact with the photocatalyst layer, wherein an electron-hole recombination rate involving the photogenerated electrons and holes is reduced, thus increasing the removal rate of microorganisms or chemical contaminants from the fluid. The system can include a source of photons having a wavelength corresponding to a band gap energy of the photocatalyst to illuminate the photocatalyst layer. The invention can be used in air supply registers of a heating, ventilating and air conditioning system, or in air ducts, or used to disinfect wall coverings, floor coverings, envelopes, packages, and clothing articles.Type: ApplicationFiled: June 16, 2003Publication date: December 16, 2004Applicant: University of FloridaInventor: Dharendra Yogi Goswami