Patents by Inventor Dharma Maddala

Dharma Maddala 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: 11130160
    Abstract: An apparatus and method for applying an EDT texture to an aluminum sheet has a rolling stand with at least one EDT surfaced roll capable of rolling the sheet at reductions <1%. The rolling is conducted with residual or no lubrication and imparts a texture on the scale of about 1 ?m to the surface of the sheet at low roll force.
    Type: Grant
    Filed: November 30, 2016
    Date of Patent: September 28, 2021
    Assignee: ARCONIC TECHNOLOGIES LLC
    Inventors: Thomas J. Kasun, Neville C. Whittle, Patricia A. Stewart, Shawn J. Clark, Julie A. Wise, Karl Eminger, Dharma Maddala, Eric Victor Schelin, June M. Epp, Wade Winchip, Ian Bath
  • Patent number: 10589327
    Abstract: An apparatus and method for rolling aluminum sheet uses a texture roll to roll the sheet while is it hot and has reduced yield strength. The texture rolling may be used to remediate defects in the sheet at a variety of stages in rolling, and may facilitate subsequent rolling stages.
    Type: Grant
    Filed: May 11, 2015
    Date of Patent: March 17, 2020
    Assignee: ARCONIC INC.
    Inventors: Patricia Stewart, Neville C. Whittle, Dharma Maddala, Shawn Clark, Thomas Kasun, Julie Wise, Ming Li, Raymond J. Kilmer
  • Publication number: 20190338434
    Abstract: The present application relates to systems and methods for electrodepositing multi-component alloys, and products made by the same. The electrodeposition may be accomplished to deposit one or more multi-component alloy layers on a substrate. In one embodiment, a substrate is a bulk metal glass. In one embodiment, a substrate is an aluminum alloy substrate. In one embodiment, preconfigured cathode and/or anode configurations are used, which may facilitate, among other things, a uniform current density.
    Type: Application
    Filed: July 10, 2019
    Publication date: November 7, 2019
    Inventors: Dharma Maddala, Shawn Sullivan, Vivek Sample, Andreas Kulovits, Raphael S. Morales, Kelly M. Weiler
  • Publication number: 20170157655
    Abstract: An apparatus and method for applying an EDT texture to an aluminum sheet has a rolling stand with at least one EDT surfaced roll capable of rolling the sheet at reductions<1%. The rolling is conducted with residual or no lubrication and imparts a texture on the scale of about 1 ?m to the surface of the sheet at low roll force.
    Type: Application
    Filed: November 30, 2016
    Publication date: June 8, 2017
    Inventors: Thomas J. Kasun, Neville C. Whittle, Patricia A. Stewart, Shawn J. Clark, Julie A. Wise, Karl Eminger, Dharma Maddala, Eric Victor Schelin, June M. Epp, Wade Winchip, Ian Bath
  • Publication number: 20150321232
    Abstract: An apparatus and method for rolling aluminum sheet uses a texture roll to roll the sheet while is it hot and has reduced yield strength. The texture rolling may be used to remediate defects in the sheet at a variety of stages in rolling, and may facilitate subsequent rolling stages.
    Type: Application
    Filed: May 11, 2015
    Publication date: November 12, 2015
    Inventors: Patricia Stewart, Neville C. Whittle, Dharma Maddala, Shawn Clark, Thomas Kasun, Julie Wise, Ming Li, Raymond J. Kilmer
  • Publication number: 20150158263
    Abstract: An embossing method and apparatus utilizes 3D printing by digitally dispensing\ink jet printing to apply texturing features to a work roll or a sheet that may be fed into a rolling mill to emboss sheet material like aluminum alloy sheet. The printed pattern is highly variable and may be produced quickly and easily allowing low volume embossing. The printed pattern may be removed from a work roll after use to allow the roll to be reused. Alternatively, a sheet receives the printed pattern, is rolled and then the printed material removed from the resultant depression.
    Type: Application
    Filed: December 5, 2014
    Publication date: June 11, 2015
    Inventors: Dharma Maddala, Neville Whittle, June Epp, Shawn Clark