Patents by Inventor Anna N. Bourkhina

Anna N. Bourkhina 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).

  • Aluminum alloy with improved tribological characteristics
    Patent number: 5925315
    Abstract: An antifrictional aluminum alloy and a method for making an aluminum alloy without lead are provided. The alloy has improved tribological characteristics and a base composition, in weight percent as follows:Silicon: 3.0-6.0Copper: 2.0-5.0Zinc: 0.5-5.0Magnesium: 0.25-0.5Nickel: 0.2-0.6Tin: 0.5-5.0Bismuth: 0.1-1.0Iron: up to 0.7Aluminum: essentially the balance.
    Type: Grant
    Filed: July 9, 1997
    Date of Patent: July 20, 1999
    Assignee: Caterpillar Inc.
    Inventor: Anna N. Bourkhina