Patents Assigned to Faraday Technology, Inc.
  • Patent number: 11411258
    Abstract: The problem of high rate electrodeposition of metals such as copper during electrowinning operations or high rate charging of lithium or zinc electrodes for rechargeable battery applications while avoiding the adverse effects of dendrite formation such as causing short-circuiting and/or poor deposit morphology is solved by pulse reverse current electrodeposition or charging whereby the forward cathodic (electrodeposition or charging) pulse current is “tuned” to minimize dendrite formation for example by creating a smaller pulsating boundary layer and thereby minimizing mass transport effects leading to surface asperities and the subsequent reverse anodic (electropolishing) pulse current is “tuned” to eliminate the micro- and macro-asperities leading to dendrites.
    Type: Grant
    Filed: September 4, 2019
    Date of Patent: August 9, 2022
    Assignee: Faraday Technology, Inc.
    Inventors: Earl Jennings Taylor, Maria E. Inman, Timothy D. Hall, Danny Xin Liu
  • Patent number: 11118283
    Abstract: A method of and system for surface finishing an additive manufactured part. A part having a surface roughness with macroasperities is placed in a chamber with an electrolyte and an electrode. A pulse/pulse reverse power supply is connected to the part rendering it anodic and connected to the electrode rendering it cathodic.
    Type: Grant
    Filed: January 28, 2020
    Date of Patent: September 14, 2021
    Assignee: Faraday Technology, Inc.
    Inventors: Timothy D. Hall, Holly M. Garich, Heather McCrabb, Earl Jennings Taylor
  • Patent number: 10684522
    Abstract: A system and method of operating an electrochemical mirror for reversibly controlling the propagation of electromagnetic radiation. The mirror preferably includes a first electrode transmissive substrate which is substantially transparent to the electromagnetic radiation, a second electrode, and an electrolyte containing metal ions between the pair of electrodes. A first cathodic potential is applied across the electrodes to cause the metal ions from the electrolyte to electrodeposit a mirror film on the first electrode transmissive substrate. A second anodic potential is applied across the electrodes to oxidize and strip the metallic mirror film from the first electrode transmissive electrode. After a plurality of deposition and stripping cycles, a cleaning cycle is initiated to remove undissolved reflective material on the first electrode preferably by applying a third potential across the first and second electrodes which is increased to a fourth potential and then decreased back to the third potential.
    Type: Grant
    Filed: September 5, 2018
    Date of Patent: June 16, 2020
    Assignee: Faraday Technology, Inc.
    Inventors: E. Jennings Taylor, Holly M. Garich, Maria E. Inman
  • Patent number: 10214832
    Abstract: A system for recycling machined metal produced by an electrochemical material removal process. The system includes a machining unit and an electrowinning unit. The machining unit includes an anode to receive a workpiece, a cathode tool, and a first pulse generator to provide a voltage or current waveform between the anode and the cathode tool. The electrowinning unit includes an electrowinning cathode, an electrowinning anode, and a second pulse generator to provide a voltage or current waveform between the electrowinning anode and the electrowinning cathode. The machining unit is in fluid communication with the electrowinning unit.
    Type: Grant
    Filed: February 28, 2018
    Date of Patent: February 26, 2019
    Assignee: FARADAY TECHNOLOGY, INC.
    Inventors: E. Jennings Taylor, Maria E. Inman, Brian T. Skinn, Timothy D. Hall, Stephen T. Snyder, Savidra C. Lucatero, Eric Lee Kathe
  • Patent number: 10100423
    Abstract: A layer of chromium metal is electroplated from trivalent chromium onto an electrically conducting substrate by immersing the substrate and a counter electrode in a electroplating bath and passing a modulated electric current between the electrodes. In one embodiment, the current contains pulses that are cathodic with respect to said substrate and in another embodiment the current contains pulses that are cathodic and pulses that are anodic with respect to said substrate. The cathodic pulses have a duty cycle greater than about 80%.
    Type: Grant
    Filed: August 14, 2015
    Date of Patent: October 16, 2018
    Assignee: FARADAY TECHNOLOGY, INC.
    Inventors: Timothy D. Hall, Burhanuddin Kagajwala
  • Publication number: 20180230621
    Abstract: A system for recycling machined metal produced by an electrochemical material removal process. The system includes a machining unit and an electrowinning unit. The machining unit includes an anode to receive a workpiece, a cathode tool, and a first pulse generator to provide a voltage or current waveform between the anode and the cathode tool. The electrowinning unit includes an electrowinning cathode, an electrowinning anode, and a second pulse generator to provide a voltage or current waveform between the electrowinning anode and the electrowinning cathode. The machining unit is in fluid communication with the electrowinning unit.
    Type: Application
    Filed: February 28, 2018
    Publication date: August 16, 2018
    Applicant: Faraday Technology, Inc.
    Inventors: E. Jennings Taylor, Maria E. Inman, Brian T. Skinn, Timothy D. Hall, Stephen T. Snyder, Savidra C. Lucatero, Eric Lee Kathe
  • Publication number: 20180178302
    Abstract: A method and system for electrochemically machining a hollow body of a metal or a metal alloy. An electrode is positioned within a hollow body including a metal or metal alloy, where the hollow body has a variable internal diameter. The hollow body is oriented vertically, with the electrode oriented vertically therein. The hollow body is at least partially filled with an aqueous, acidic electrolyte solution, the electrolyte solution being devoid of hydrofluoric acid and having a viscosity less than 15 cP. An electric current is passed between the hollow body and the electrode, where the electric current includes a plurality of anodic pulses and a plurality of cathodic pulses, and where the cathodic pulses are interposed between at least some of the anodic pulses.
    Type: Application
    Filed: February 21, 2018
    Publication date: June 28, 2018
    Applicant: Faraday Technology, Inc.
    Inventors: E. Jennings Taylor, Maria E. Inman, Timothy Hall
  • Patent number: 9987699
    Abstract: A method and system for electrochemically machining a hollow body of a metal or a metal alloy. An electrode is positioned within a hollow body including a metal or metal alloy, where the hollow body has a variable internal diameter. The hollow body is oriented vertically, with the electrode oriented vertically therein. The hollow body is at least partially filled with an aqueous, acidic electrolyte solution, the electrolyte solution being devoid of hydrofluoric acid and having a viscosity less than 15 cP. An electric current is passed between the hollow body and the electrode, where the electric current includes a plurality of anodic pulses and a plurality of cathodic pulses, and where the cathodic pulses are interposed between at least some of the anodic pulses.
    Type: Grant
    Filed: December 30, 2014
    Date of Patent: June 5, 2018
    Assignee: FARADAY TECHNOLOGY, INC.
    Inventors: E. Jennings Taylor, Maria E. Inman, Timothy Hall
  • Patent number: 9938632
    Abstract: A method for recycling metallic material produced by an electrochemical material removal process. The method includes flowing an electrolyte solution between an anode workpiece and a cathode tool in a first electrolytic process, the first electrolytic process including applying a first electrolytic current and voltage between the anode workpiece and the cathode tool and thereby causing metal ions to be removed from the anode workpiece and dissolved and substantially retained in the electrolyte solution. The electrolyte solution with the metal ions therein is passed between an electrowinning cathode and an electrowinning anode in a second electrolytic process, the second electrolytic process including applying a second electrolytic current and voltage between the electrowinning cathode and the electrowinning anode and thereby causing the metal ions to be removed from the electrolyte solution and deposited onto the electrowinning cathode.
    Type: Grant
    Filed: September 4, 2015
    Date of Patent: April 10, 2018
    Assignee: FARADAY TECHNOLOGY, INC.
    Inventors: E. Jennings Taylor, Maria E. Inman, Brian T. Skinn, Timothy D. Hall, Stephen T. Snyder, Savidra C. Lucatero, Eric Lee Kathe
  • Patent number: 9546101
    Abstract: An apparatus for the concentration of suspended algae particles in an aqueous solution. The apparatus includes an electrolytic cell containing at least an anode and a cathode, and a filter. The electrolytic cell receives a solution containing suspended algae particles therein. A power supply is near the filter. A zone of depleted suspended algae particles is near the filter, formed under the influence of an applied electric field from the power supply.
    Type: Grant
    Filed: June 24, 2015
    Date of Patent: January 17, 2017
    Assignees: FARADAY TECHNOLOGY, INC., PHYSICAL SCIENCES, INC.
    Inventors: E. Jennings Taylor, Maria E. Inman, Joseph Kell, Heather McCrabb, Anthony Ferrante, Ross Youngs, John Nicholas Meister, James Robert Cook
  • Publication number: 20160230303
    Abstract: A method for recycling metallic material produced by an electrochemical material removal process. The method includes flowing an electrolyte solution between an anode workpiece and a cathode tool in a first electrolytic process, the first electrolytic process including applying a first electrolytic current and voltage between the anode workpiece and the cathode tool and thereby causing metal ions to be removed from the anode workpiece and dissolved and substantially retained in the electrolyte solution. The electrolyte solution with the metal ions therein is passed between an electrowinning cathode and an electrowinning anode in a second electrolytic process, the second electrolytic process including applying a second electrolytic current and voltage between the electrowinning cathode and the electrowinning anode and thereby causing the metal ions to be removed from the electrolyte solution and deposited onto the electrowinning cathode.
    Type: Application
    Filed: September 4, 2015
    Publication date: August 11, 2016
    Applicant: Faraday Technology, Inc.
    Inventors: E. Jennings Taylor, Maria E. Inman, Brian T. Skinn, Timothy D. Hall, Stephen T. Snyder, Savidra C. Lucatero, Eric Lee Kathe
  • Patent number: 9403228
    Abstract: A method and apparatus for electromechanical grinding is provided. An pulsed alternating waveform is applied between an anodic workpiece and cathodic grinding wheel to physically remove and electrochemically remove material from the anodic workpiece.
    Type: Grant
    Filed: July 29, 2014
    Date of Patent: August 2, 2016
    Assignee: FARADAY TECHNOLOGY, INC.
    Inventors: E. Jennings Taylor, Maria E. Inman
  • Publication number: 20150354077
    Abstract: A layer of chromium metal is electroplated from trivalent chromium onto an electrically conducting substrate by immersing the substrate and a counter electrode in a electroplating bath and passing a modulated electric current between the electrodes. In one embodiment, the current contains pulses that are cathodic with respect to said substrate and in another embodiment the current contains pulses that are cathodic and pulses that are anodic with respect to said substrate. The cathodic pulses have a duty cycle greater than about 80%.
    Type: Application
    Filed: August 14, 2015
    Publication date: December 10, 2015
    Applicant: Faraday Technology, Inc.
    Inventors: Timothy D. Hall, Burhanuddin Kagajwala
  • Publication number: 20150291455
    Abstract: An apparatus for the concentration of suspended algae particles in an aqueous solution. The apparatus includes an electrolytic cell containing at least an anode and a cathode, and a filter. The electrolytic cell receives a solution containing suspended algae particles therein. A power supply is near the filter. A zone of depleted suspended algae particles is near the filter, formed under the influence of an applied electric field from the power supply.
    Type: Application
    Filed: June 24, 2015
    Publication date: October 15, 2015
    Applicants: Faraday Technology, Inc., Algaeventure Systems, Physical Sciences, Inc.
    Inventors: E. Jennings Taylor, Maria E. Inman, Joseph Kell, Heather McCrabb, Anthony Ferrante, Ross Youngs, John Nicholas Meister, James Robert Cook
  • Patent number: 9095808
    Abstract: An electrolytic filtration method and apparatus for the concentration and collection of suspended particulates from aqueous solutions is disclosed. The electrolytic cell contains at least an anode and a cathode, and in one embodiment contains a plurality of anodes and cathodes. The electrolytic cell also contains a filter, and in one embodiment the filter is a moving belt filter. While not bound by theory, the electrolytic filtration method and apparatus is based on the electrophoretic movement of algae particles suspended in an aqueous solution away from the filter under the influence of an electric field. In one embodiment the electric field is a pulsed waveform with unidirectional voltage or current pulses. In another embodiment, the electric field is a pulsed waveform with bidirectional voltage or current pulses.
    Type: Grant
    Filed: September 30, 2011
    Date of Patent: August 4, 2015
    Assignees: Physical Sciences, Inc., Faraday Technology, Inc.
    Inventors: E. Jennings Taylor, Maria I. Inman, Joseph Kell, Heather McCrabb, Anthony Ferrante, Ross Youngs, John Nicholas Meister, James Robert Cook
  • Publication number: 20150114847
    Abstract: A method and system for electrochemically machining a hollow body of a metal or a metal alloy. An electrode is positioned within a hollow body including a metal or metal alloy, where the hollow body has a variable internal diameter. The hollow body is oriented vertically, with the electrode oriented vertically therein. The hollow body is at least partially filled with an aqueous, acidic electrolyte solution, the electrolyte solution being devoid of hydrofluoric acid and having a viscosity less than 15 cP. An electric current is passed between the hollow body and the electrode, where the electric current includes a plurality of anodic pulses and a plurality of cathodic pulses, and where the cathodic pulses are interposed between at least some of the anodic pulses.
    Type: Application
    Filed: December 30, 2014
    Publication date: April 30, 2015
    Applicant: FARADAY TECHNOLOGY, INC.
    Inventors: E. Jennings Taylor, Maria E. Inman, Timothy Hall
  • Patent number: 9006147
    Abstract: An electrochemical finishing system for super conducting radio frequency (SCRF) cavities including a low viscosity electrolyte solution that is free of hydrofluoric acid, an electrode in contact with the electrolyte solution, the SCRF cavity being spaced apart from the electrode and in contact with the electrolyte solution and a power source including a first electrical lead electrically coupled to the electrode and a second electrical lead electrically coupled to the cavity, the power source being configured to pass an electric current between the electrode and the workpiece, wherein the electric current includes anodic pulses and cathodic pulses, and wherein the cathodic pulses are interposed between at least some of the anodic pulses. The SCRF cavity may be vertically oriented during the finishing process.
    Type: Grant
    Filed: July 11, 2012
    Date of Patent: April 14, 2015
    Assignee: Faraday Technology, Inc.
    Inventors: E. Jennings Taylor, Maria E. Inman, Timothy Hall
  • Publication number: 20140018244
    Abstract: An electrochemical finishing system for super conducting radio frequency (SCRF) cavities including a low viscosity electrolyte solution that is free of hydrofluoric acid, an electrode in contact with the electrolyte solution, the SCRF cavity being spaced apart from the electrode and in contact with the electrolyte solution and a power source including a first electrical lead electrically coupled to the electrode and a second electrical lead electrically coupled to the cavity, the power source being configured to pass an electric current between the electrode and the workpiece, wherein the electric current includes anodic pulses and cathodic pulses, and wherein the cathodic pulses are interposed between at least some of the anodic pulses. The SCRF cavity may be vertically oriented during the finishing process.
    Type: Application
    Filed: July 11, 2012
    Publication date: January 16, 2014
    Applicant: FARADAY TECHNOLOGY, INC.
    Inventors: E. Jennings Taylor, Maria E. Inman, Timothy Hall
  • Patent number: 8603315
    Abstract: A method for electrochemically plating tin or tin alloy onto a workpiece to provide a tin or tin alloy deposit on said workpiece having a stress differential and workpieces characterized by a tin or tin alloy deposit having a stress differential.
    Type: Grant
    Filed: January 5, 2007
    Date of Patent: December 10, 2013
    Assignee: Faraday Technology, Inc.
    Inventors: E. Jennings Taylor, Jenny J. Sun
  • Publication number: 20130220819
    Abstract: A layer of chromium metal is electroplated from trivalent chromium onto an electrically conducting substrate by immersing the substrate and a counter electrode in a electroplating bath and passing a modulated electric current between the electrodes. In one embodiment, the current contains pulses that are cathodic with respect to said substrate and in another embodiment the current contains pulses that are cathodic and pulses that are anodic with respect to said substrate. The cathodic pulses have a duty cycle greater than about 80%.
    Type: Application
    Filed: February 15, 2013
    Publication date: August 29, 2013
    Applicant: Faraday Technology, Inc.
    Inventors: Timothy Hall, Burhanuddin Kagajwala