Patents by Inventor Tushar K. Ghosh

Tushar K. Ghosh 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).

  • Patent number: 8007748
    Abstract: Perlite, particularly, perlite in powdered form, is employed to adsorb metals and metal compounds from fluids, in particular gases at elevated temperature. Treatment of perlite by boiling with sulfuric acid or suspending in a suspension of sulfur in carbon disulfide has been shown to significantly expand the surface area of perlite, thus increasing the efficiency of the process. In select embodiments, powdered perlite is treated to expand its surface area and injected into a fluid stream, such as flue gas, held for a specific retention period, and removed for subsequent disposal. In other embodiments powdered perlite is provided in an adsorption bed. Fluids containing metals or metal compounds in vapor form are permitted to pass through the adsorption bed until the expanded perlite powder is saturated (exhausted) with the metal and metal compounds adsorbed thereon. The perlite is then replaced, disposing of the exhausted perlite.
    Type: Grant
    Filed: March 10, 2009
    Date of Patent: August 30, 2011
    Assignee: The United States of America as represented by the Secretary of the Army
    Inventors: Veera M. Boddu, Tushar K. Ghosh, Kent James Hay, Dabir S. Viswanath
  • Publication number: 20110199015
    Abstract: The present disclosure provides a new diamond composite comprising a diamond material doped with a preselected transition metal or metal compounds as an illumination source with broadband white light luminosity, high efficiency, and enhanced life span. The present disclosure also provides a new method of diffusing dopants (such as transition metal or metal compounds) into an intended material (such as a diamond material).
    Type: Application
    Filed: February 12, 2010
    Publication date: August 18, 2011
    Applicant: THE CURATORS OF THE UNIVERSITY OF MISSOURI
    Inventors: Adrian E. Mendez, Mark A. Prelas, Tushar K. Ghosh
  • Patent number: 7956520
    Abstract: An actuator element formed from an actuator composition is described, along with transducers including the same. The composition comprises: (i) a thermoplastic elastomer copolymer, the copolymer comprising at least one flexible midblock, and at least two glassy or semicrystalline endblocks; and (ii) a liquid modifier that selectively solvates the at least one flexible midblock.
    Type: Grant
    Filed: November 19, 2007
    Date of Patent: June 7, 2011
    Assignee: North Carolina State University
    Inventors: Ravi Shankar, Tushar K. Ghosh, Richard J. Spontak
  • Publication number: 20100141092
    Abstract: An actuator element formed from an actuator composition is described, along with transducers including the same. The composition comprises: (i) a thermoplastic elastomer copolymer, the copolymer comprising at least one flexible midblock, and at least two glassy or semicrystalline endblocks; and (ii) a liquid modifier that selectively solvates the at least one flexible midblock.
    Type: Application
    Filed: November 19, 2007
    Publication date: June 10, 2010
    Inventors: Ravi Shankar, Tushar K. Ghosh, Richard J. Spontak
  • Patent number: 7649359
    Abstract: A chemical and biological agent sensor includes an electrostatic thin film supported by a substrate. The film includes an electrostatic charged surface to attract predetermined biological and chemical agents of interest. A charge collector associated with said electrostatic thin film collects charge associated with surface defects in the electrostatic film induced by the predetermined biological and chemical agents of interest. A preferred sensing system includes a charge based deep level transient spectroscopy system to read out charges from the film and match responses to data sets regarding the agents of interest. A method for sensing biological and chemical agents includes providing a thin sensing film having a predetermined electrostatic charge. The film is exposed to an environment suspected of containing the biological and chemical agents. Quantum surface effects on the film are measured.
    Type: Grant
    Filed: December 13, 2006
    Date of Patent: January 19, 2010
    Assignee: The Curators of the University of Missouri
    Inventors: Mark A. Prelas, Tushar K. Ghosh, Robert V. Tompson, Jr., Dabir Viswanath, Sudarshan K. Loyalka
  • Publication number: 20090165649
    Abstract: Perlite, particularly, perlite in powdered form, is employed to adsorb metals and metal compounds from fluids, in particular gases at elevated temperature. In select embodiments, powdered perlite is treated to expand its surface area and injected into a fluid stream, such as flue gas, held for a specific retention period, and removed for subsequent disposal. In other embodiments powdered perlite is provided in an adsorption bed. Fluid containing metals or metal compounds in vapor form is permitted to pass through the adsorption bed until the expanded perlite powder is saturated (exhausted) with the metal and metal compounds adsorbed thereon. The perlite is then replaced, disposing of the exhausted perlite. Treatment of perlite by boiling with sulfuric acid or suspending in a suspension of sulfur in carbon disulfide has been shown to significantly expand the surface area of perlite, thus increasing the efficiency of the process.
    Type: Application
    Filed: March 10, 2009
    Publication date: July 2, 2009
    Inventors: VEERA M. BODDU, Tushar K. Ghosh, Kent James Hay, Dabir S. Viswanath
  • Patent number: 7524794
    Abstract: Perlite, particularly, perlite in powdered form, is employed to adsorb metals and metal compounds from a fluid flow. In select embodiments, the perlite is treated to expand its surface area and injected into a fluid stream, such as flue gas, held for a specific retention period, and removed for subsequent disposal. In other embodiments the perlite is provided in a fixed adsorption bed and the fluid flow permitted to pass through the bed until the perlite surface is exhausted. The perlite in the fixed bed is then replaced, with the exhausted perlite disposed of as appropriate. Treatment of perlite by boiling with sulfuric acid or suspending in a suspension of sulfur in carbon disulfide has been shown to significantly expand the surface area of perlite.
    Type: Grant
    Filed: September 1, 2004
    Date of Patent: April 28, 2009
    Assignee: The United States of America as represented by the Secretary of the Army
    Inventors: Veera M. Boddu, Kent James Hay, Tushar K. Ghosh, Dabir S. Viswanath
  • Publication number: 20080287022
    Abstract: Coaxial and twisted pair conductive yarn structures reduce signal crosstalk between adjacent lines in woven electrical networks. A coaxial conductive yarn structure includes an inner conductive yarn having a plurality of conductive strands twisted together. An outer conductive yarn is wrapped around the inner conductive yarn. An insulating layer separates the inner and outer yarns. A twisted pair conductive yarn structure includes first and second conductive yarns, each including a plurality of conductive strands being twisted together. The first and second conductive yarns are twisted together to form a helical structure. In a woven electrical network, at least one conductor of adjacent conductive yarn structures is connected to ground to reduce signal crosstalk. Coaxial and twisted pair yarn structures may also be formed simultaneously with weaving or knitting the threads that make up the structures into a fabric.
    Type: Application
    Filed: March 24, 2008
    Publication date: November 20, 2008
    Inventors: Anuj Dhawan, Tushar K. Ghosh, Abdelfattah M. Seyam, John Muth
  • Patent number: 7348285
    Abstract: Coaxial and twisted pair conductive yarn structures reduce signal crosstalk between adjacent lines in woven electrical networks. A coaxial conductive yarn structure includes an inner conductive yarn having a plurality of conductive strands twisted together. An outer conductive yarn is wrapped around the inner conductive yarn. An insulating layer separates the inner and outer yarns. A twisted pair conductive yarn structure includes first and second conductive yarns, each including a plurality of conductive strands being twisted together. The first and second conductive yarns are twisted together to form a helical structure. In a woven electrical network, at least one conductor of adjacent conductive yarn structures is connected to ground to reduce signal crosstalk. Coaxial and twisted pair yarn structures may also be formed simultaneously with weaving or knitting the threads that make up the structures into a fabric.
    Type: Grant
    Filed: June 27, 2003
    Date of Patent: March 25, 2008
    Assignee: North Carolina State University
    Inventors: Anuj Dhawan, Tushar K. Ghosh, Abdelfattah M. Seyam, John Muth
  • Publication number: 20040057176
    Abstract: Coaxial and twisted pair conductive yarn structures reduce signal crosstalk between adjacent lines in woven electrical networks. A coaxial conductive yarn structure includes an inner conductive yarn having a plurality of conductive strands twisted together. An outer conductive yarn is wrapped around the inner conductive yarn. An insulating layer separates the inner and outer yarns. A twisted pair conductive yarn structure includes first and second conductive yarns, each including a plurality of conductive strands being twisted together. The first and second conductive yarns are twisted together to form a helical structure. In a woven electrical network, at least one conductor of adjacent conductive yarn structures is connected to ground to reduce signal crosstalk. Coaxial and twisted pair yarn structures may also be formed simultaneously with weaving or knitting the threads that make up the structures into a fabric.
    Type: Application
    Filed: June 27, 2003
    Publication date: March 25, 2004
    Applicant: North Carolina State University
    Inventors: Anuj Dhawan, Tushar K. Ghosh, Abdelfattah M. Seyam, John Muth
  • Patent number: 6487902
    Abstract: An apparatus and method for biaxial load deformation testing of textile and other membrane materials including a first pair of spaced-apart segmented clamping systems for detachably engaging a membrane test material along opposing sides in the X direction. A second pair of spaced-apart segmented clamping systems is provided for detachably engaging a membrane test material along opposing sides extending in the Y direction. Each of the first pair and each of the second pair of spaced-apart segmented clamping systems are interconnected by a pantograph so as to be slidably extendable and slidably contractible with respect to each other and proportional to strain in the membrane test material in the X and Y directions, respectively.
    Type: Grant
    Filed: October 27, 1999
    Date of Patent: December 3, 2002
    Assignee: North Carolina State University
    Inventor: Tushar K. Ghosh