Patents by Inventor Vimal K. Pukari

Vimal K. Pukari 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).

  • Sol-gel alumina shaped bodies
    Patent number: 5035724
    Abstract: A process for producing dry substantially crack-free shaped bodies, such as grinding wheels, from a sol-gel alumina hydrate composition is disclosed. The shaped bodies are formed by either a one or a two step forming process and avoid having to pre-prepare alpha alumina grits. The addition of specific crack-avoiding drying control additives, e.g. whiskers, chopped fibers, agarose gels, and formamide, to the sol-gel alumina hydrate prior to water removal therefrom substantially prevents crack-formation during the water removal operation.
    Type: Grant
    Filed: May 9, 1990
    Date of Patent: July 30, 1991
    Assignee: Norton Company
    Inventors: Vimal K. Pukari, Norman I. Paille, Jr., Thomas P. Thibaudeau, Arup K. Khaund