Patents by Inventor Rod Barr

Rod Barr 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).

  • Method of manufacture of electrochemically textured surface having controlled peak characteristics
    Patent number: 6478943
    Abstract: Textured surfaces comprised of peaks which have been electrochemically deposited on a substrate are prepared using a pulsed direct current process. Typical substrates are machine components such as a machine roll. Improved textured surfaces are made according to the invention by controlling the density, uniformity and size of the peaks using a pulsed direct current process. Accordingly, the peak characteristics are predetermined by selecting a pulse wave form having specific current density and pulse interval parameters as well as a total deposition time which will deposit peaks having desired characteristics on the substrate.
    Type: Grant
    Filed: June 1, 2000
    Date of Patent: November 12, 2002
    Assignee: Roll Surface Technologies, Inc.
    Inventors: Andrzej Lasia, Zhaojiang Li, Rod Barr