Patents by Inventor Tamara Andreoli

Tamara Andreoli 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).

  • Process for the stripping of workpieces and stripping solution
    Patent number: 9057134
    Abstract: A material mixture for dissolving a coating system from a work piece comprises an aqueous, alkaline solution containing between 3 and 8 weight percent KMnO4 and at the same time having an alkaline fraction of between 6 and 15 weight percent. The alkaline fraction is formed in one embodiment by KOH or NaOH, wherein the pH of the solution is above 13. A method according to the present invention uses the above-described material mixture for wet-chemical delaminating of hard material coatings of the group: metallic AlCr, TiAlCr and other AlCr alloys; nitrides, carbides, borides, oxides thereof and combinations thereof.
    Type: Grant
    Filed: April 9, 2009
    Date of Patent: June 16, 2015
    Assignee: OERLIKON SURFACE SOLUTIONS AG, TRUBBACH
    Inventors: Tamara Andreoli, Udo Rauch
  • PROCESS FOR THE STRIPPING OF WORKPIECES AND STRIPPING SOLUTION
    Publication number: 20110056914
    Abstract: A material mixture for dissolving a coating system from a work piece comprises an aqueous, alkaline solution containing between 3 and 8 weight percent KMnO4 and at the same time having an alkaline fraction of between 6 and 15 weight percent. The alkaline fraction is formed in one embodiment by KOH or NaOH, wherein the pH of the solution is above 13. A method according to the present invention uses the above-described material mixture for wet-chemical delaminating of hard material coatings of the group: metallic AlCr, TiAlCr and other AlCr alloys; nitrides, carbides, borides, oxides thereof and combinations thereof.
    Type: Application
    Filed: April 9, 2009
    Publication date: March 10, 2011
    Applicant: OERLIKON TRADING AG, TRUBBACH
    Inventors: Tamara Andreoli, Udo Rauch