Patents by Inventor Robert Cammarata

Robert Cammarata 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).

  • Publication number: 20170368557
    Abstract: A continuous flow particle separation system for separating metallic and nonmetallic particles from a mixed-particle suspension includes a fluid channeling component defining an input channel and first and second output channels fluidly connected to the input channel at a bifurcated junction, a first electrode and a second electrode arranged proximate the input channel at least partially prior to the bifurcated junction, and an alternating current (AC) electric power source electrically connected to the first and second electrodes.
    Type: Application
    Filed: July 5, 2017
    Publication date: December 28, 2017
    Applicant: The Johns Hopkins University
    Inventors: Su Chih Chi, Robert Cammarata, Stephen L. Farias, Donglei Fan, Danru Qu, Chia-Ling Chien
  • Patent number: 9751091
    Abstract: A continuous flow particle separation system for separating metallic and nonmetallic particles from a mixed-particle suspension includes a fluid channeling component defining an input channel and first and second output channels fluidly connected to the input channel at a bifurcated junction, a first electrode and a second electrode arranged proximate the input channel at least partially prior to the bifurcated junction, and an alternating current (AC) electric power source electrically connected to the first and second electrodes.
    Type: Grant
    Filed: May 24, 2013
    Date of Patent: September 5, 2017
    Assignee: THE JOHNS HOPKINS UNIVERSITY
    Inventors: Su Chih Chi, Robert Cammarata, Stephen L. Farias, Donglei Fan, Danru Qu, Chia-Ling Chien
  • Patent number: 9718683
    Abstract: A method for assembling multi-component nano-structures that includes dispersing a plurality of nano-structures in a fluid medium, and applying an electric field having an alternating current (AC) component and a direct current (DC) component to the fluid medium containing the plurality of nano-structures. The electric field causes a first nano-structure from the plurality of nano-structures to move to a predetermined position and orientation relative to a second nano-structure of the plurality of nano-structures such that the first and second nano-structures assemble into a multi-component nano-structure.
    Type: Grant
    Filed: March 31, 2015
    Date of Patent: August 1, 2017
    Assignee: THE JOHNS HOPKINS UNIVERSITY
    Inventors: Chia-Ling Chien, Donglei Fan, Robert Cammarata
  • Publication number: 20150353354
    Abstract: A method for assembling multi-component nano-structures that includes dispersing a plurality of nano-structures in a fluid medium, and applying an electric field having an alternating current (AC) component and a direct current (DC) component to the fluid medium containing the plurality of nano-structures. The electric field causes a first nano-structure from the plurality of nano-structures to move to a predetermined position and orientation relative to a second nano-structure of the plurality of nano-structures such that the first and second nano-structures assemble into a multi-component nano-structure.
    Type: Application
    Filed: March 31, 2015
    Publication date: December 10, 2015
    Inventors: Chia-Ling Chien, Donglei Fan, Robert Cammarata
  • Publication number: 20140346044
    Abstract: A continuous flow particle separation system for separating metallic and nonmetallic particles from a mixed-particle suspension includes a fluid channeling component defining an input channel and first and second output channels fluidly connected to the input channel at a bifurcated junction, a first electrode and a second electrode arranged proximate the input channel at least partially prior to the bifurcated junction, and an alternating current (AC) electric power source electrically connected to the first and second electrodes.
    Type: Application
    Filed: May 24, 2013
    Publication date: November 27, 2014
    Applicant: The Johns Hopkins University
    Inventors: Su Chih Chi, Robert Cammarata, Stephen L. Farias, Donglei Fan, Danru Qu, Chia-Ling Chien
  • Publication number: 20140346045
    Abstract: A continuous flow particle separation system for separating metallic and nonmetallic particles from a mixed-particle suspension includes a fluid channeling component defining an input channel and first and second output channels fluidly connected to the input channel at a bifurcated junction, a first electrode and a second electrode arranged proximate the input channel at least partially prior to the bifurcated junction, and an alternating current (AC) electric power source electrically connected to the first and second electrodes.
    Type: Application
    Filed: March 19, 2014
    Publication date: November 27, 2014
    Applicant: The Johns Hopkins University
    Inventors: Su Chih Chi, Robert Cammarata, Stephen L. Farias, Donglei Fan, Danru Qu, Chia-Ling Chien
  • Patent number: 6596101
    Abstract: Preferred embodiments of the invention provide new nanostructured materials and methods for preparing nanostructured materials having increased tensile strength and ductility, increased hardness, and very fine grain sizes making such materials useful for a variety of applications such as rotors, electric generators, magnetic bearings, aerospace and many other structural and nonstructural applications. The preferred nanostructured materials have a tensile yield strength from at least about 1.9 to about 2.3 GPa and a tensile ductility from at least 1%. Preferred embodiments of the invention also provide a method of making a nanostructured material comprising melting a metallic material, solidifying the material, deforming the material, forming a plurality of dislocation cell structures, annealing the deformed material at a temperature from about 0.30 to about 0.70 of its absolute melting temperature, and cooling the material.
    Type: Grant
    Filed: October 3, 2001
    Date of Patent: July 22, 2003
    Assignee: Johns Hopkins University
    Inventors: Timothy P. Weihs, Robert Cammarata, Chia-Ling Chien, Changhe Shang
  • Publication number: 20020069944
    Abstract: Preferred embodiments of the invention provide new nanostructured materials and methods for preparing nanostructured materials having increased tensile strength and ductility, increased hardness, and very fine grain sizes making such materials useful for a variety of applications such as rotors, electric generators, magnetic bearings, aerospace and many other structural and nonstructural applications. The preferred nanostructured materials have a tensile yield strength from at least about 1.9 to about 2.3 GPa and a tensile ductility from at least 1%. Preferred embodiments of the invention also provide a method of making a nanostructured material comprising melting a metallic material, solidifying the material, deforming the material, forming a plurality of dislocation cell structures, annealing the deformed material at a temperature from about 0.30 to about 0.70 of its absolute melting temperature, and cooling the material.
    Type: Application
    Filed: October 3, 2001
    Publication date: June 13, 2002
    Inventors: Timothy P. Weihs, Robert Cammarata, Chia-Ling Chien, Changhe Shang