Patents by Inventor Kashinath S. Sardessai

Kashinath S. Sardessai 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 making moisture resistant briquettes
    Patent number: 5244473
    Abstract: A method is disclosed for bonding particles into briquettes wherein the particles to be briquetted are mixed with a phenolaldehyde resin and polyisocyanate in the presence of a catalyst, and the resulting mixture is briquetted. A phenolic-urethane polymer is formed to bond the particles and coat the briquette formed of said particles. Apparatus for carrying out the method is also disclosed.
    Type: Grant
    Filed: January 22, 1992
    Date of Patent: September 14, 1993
    Inventors: Kashinath S. Sardessai, Thomas S. Pollok
  • Improved foundry process and binder resin composition therefor
    Patent number: 4079031
    Abstract: An improved binder resin is disclosed for use in a foundry process, comprising a major proportion of a resole phenolic resin and a minor proportion of a polyether polyol and a mutual solvent therefor, wherein the polyol has an average molecular weight between about 200 and 5000 and a hydroxy functionality of about 2 to 4. The improved binder is used in the foundry process by mixing it with a polyisocyanate and preferably an amine catalyst.
    Type: Grant
    Filed: July 14, 1976
    Date of Patent: March 14, 1978
    Assignee: Delta Oil Products Corporation
    Inventors: Kashinath S. Sardessai, Jordan J. Kopac