Patents by Inventor Lawrence E. Gebhart

Lawrence E. Gebhart 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).

  • Electroplating cell with hydrodynamics facilitating more uniform deposition across a workpiece during plating
    Patent number: 8329006
    Abstract: An apparatus for establishing more uniform deposition across one or more faces of a workpiece in an electroplating process. The apparatus employs eductors in conjunction with a flow dampener member and other measures to provide a more uniform current distribution and a more uniform metal deposit distribution as reflected in a coefficient of variability that is lower than conventional processes.
    Type: Grant
    Filed: April 28, 2009
    Date of Patent: December 11, 2012
    Assignee: Faraday Technology, Inc.
    Inventors: Lawrence E. Gebhart, Jenny J. Sun, Phillip O. Miller, E. Jennings Taylor
  • Electroplating cell with hydrodynamics facilitating more uniform deposition on a workpiece with through holes during plating
    Patent number: 8226804
    Abstract: A method and apparatus for establishing more uniform deposition across one or more faces of a workpiece in an electroplating process. The apparatus employs eductors in conjunction with a flow dampener member and other measures to provide a more uniform current distribution and a more uniform metal deposit distribution as reflected in a coefficient of variability that is lower than conventional processes.
    Type: Grant
    Filed: April 14, 2011
    Date of Patent: July 24, 2012
    Assignees: The United States of America as represented by the Secretary of the Air Force, Faraday Technology, Inc.
    Inventors: Lawrence E. Gebhart, E. Jennings Taylor
  • ELECTROPLATING CELL WITH HYDRODYNAMICS FACILITATING MORE UNIFORM DEPOSITION ON A WORKPIECE WITH THROUGH HOLES DURING PLATING
    Publication number: 20110209991
    Abstract: A method and apparatus for establishing more uniform deposition across one or more faces of a workpiece in an electroplating process. The apparatus employs eductors in conjunction with a flow dampener member and other measures to provide a more uniform current distribution and a more uniform metal deposit distribution as reflected in a coefficient of variability that is lower than conventional processes.
    Type: Application
    Filed: April 14, 2011
    Publication date: September 1, 2011
    Inventors: Lawrence E. Gebhart, E. Jennings Taylor
  • Method of operating an electroplating cell with hydrodynamics facilitating more uniform deposition on a workpiece with through holes
    Patent number: 7947161
    Abstract: A method and apparatus for establishing more uniform deposition across one or more faces of a workpiece in an electroplating process. The apparatus employs eductors in conjunction with a flow dampener member and other measures to provide a more uniform current distribution and a more uniform metal deposit distribution as reflected in a coefficient of variability that is lower than conventional processes.
    Type: Grant
    Filed: August 10, 2007
    Date of Patent: May 24, 2011
    Assignee: Faraday Technology, Inc.
    Inventors: Lawrence E. Gebhart, E. Jennings Taylor
  • ELECTROPLATING CELL WITH HYDRODYNAMICS FACILITATING MORE UNIFORM DEPOSITION ACROSS A WORKPIECE DURING PLATING
    Publication number: 20090205953
    Abstract: An apparatus for establishing more uniform deposition across one or more faces of a workpiece in an electroplating process. The apparatus employs eductors in conjunction with a flow dampener member and other measures to provide a more uniform current distribution and a more uniform metal deposit distribution as reflected in a coefficient of variability that is lower than conventional processes.
    Type: Application
    Filed: April 28, 2009
    Publication date: August 20, 2009
    Applicant: FARADAY TECHNOLOGY, INC.
    Inventors: Lawrence E. Gebhart, Jenny J. Sun, Phillip O. Miller, E. Jennings Taylor
  • Electroplating cell with hydrodynamics facilitating more uniform deposition across a workpiece during plating
    Patent number: 7553401
    Abstract: A method and apparatus for establishing more uniform deposition across one or more faces of a workpiece in an electroplating process. The apparatus employs eductors in conjunction with a flow dampener member and other measures to provide a more uniform current distribution and a more uniform metal deposit distribution as reflected in a coefficient of variability that is lower than conventional processes.
    Type: Grant
    Filed: March 19, 2004
    Date of Patent: June 30, 2009
    Assignee: Faraday Technology, Inc.
    Inventors: Lawrence E. Gebhart, Jenny J. Sun, Phillip O. Miller, E. Jennings Taylor
  • Removal of sacrificial cores by electrochemical machining
    Patent number: 6676825
    Abstract: A sacrificial core (304) defining a cavity in a metallic or non-metallic shaped article of manufacture, e.g., a casting (302), is made from a metal that can be electrolytically dissolved. The sacrificial core (304) is removed from the article (302) by electrochemical machining. The sacrificial core (304) may be a hollow shell (306) incorporating an integral electrode (308) within the shell and electrically insulated from the shell.
    Type: Grant
    Filed: May 30, 2001
    Date of Patent: January 13, 2004
    Assignee: Faraday Technology Marketing Group, LLC
    Inventor: Lawrence E. Gebhart
  • Electrochemical machining using modulated reverse electric fields
    Patent number: 6402931
    Abstract: Electrochemical machining of metals and alloys is accomplished by using a pulsed electric current incorporating modulated reverse electric current. Reverse (cathodic) pulses are interposed between forward (anodic) pulses. The process is useful for electrochemical shaping of metals, electrochemically polishing metal surfaces, and electrochemical deburring of metal articles. The process is especially useful for electrochemical processing of metals and alloys that readily form passive surface layers.
    Type: Grant
    Filed: May 18, 1998
    Date of Patent: June 11, 2002
    Assignee: Faraday Technology Marketing Group, LLC
    Inventors: Chengdong Zhou, E. Jennings Taylor, Jenny J. Sun, Lawrence E. Gebhart, Robert P. Renz
  • Removal of sacrificial cores by electrochemical machining
    Patent number: 6221235
    Abstract: A sacrificial cores in castings of metallic or non-metallic materials is made from a metal that can be electrolytically dissolved, and is removed from the casting by electrochemical machining. The sacrificial core may be a hollow shell incorporating an integral electrode within the shell and electrically insulated from the shell.
    Type: Grant
    Filed: November 30, 1998
    Date of Patent: April 24, 2001
    Assignee: Faraday Technology Marketing Group LLC
    Inventor: Lawrence E. Gebhart