Patents by Inventor Kasturi Umapathy Rao

Kasturi Umapathy Rao 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: 6802921
    Abstract: A novel process for manufacturing fully vitrified flat extruded ceramic glazed, unglazed tiles and profiles includes the following steps: mixing of raw materials in predetermined ratios; wet milling in ball mills; mechanical filter pressing to get cakes; shredding of cake to obtain noodles like structure; using a de-airing pug mill machine to produce proper mixing by removing of air the body; drawing a column of clay body through a die for required shapes; drying in three layer horizontal drier and chamber drier; coloring in a appropriate glazing line; firing in a appropriate roller kiln; sorting line; packing and palletizing machine; and using a sawing and glueing machine for smaller size tiles to make patterns and for border tiles. The invention also includes a system for carrying out the invented process so as to achieve high quality fully vitrified ceramic tiles and profiles.
    Type: Grant
    Filed: February 11, 2003
    Date of Patent: October 12, 2004
    Assignee: Boss Profiles Limited
    Inventors: Rudrapatnakeshavamurthy Venkatesha, Snehasish Ghosh, Kasturi Umapathy Rao