Patents by Inventor Harshad M. Patel

Harshad M. Patel 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: 4273736
    Abstract: A method and composition are described for the decomposition of sodium-mercury amalgam in a reactor containing solid packing particles to form hydrogen, sodium hydroxide, and denuded mercury. The novel packing particles are comprised of a heterogeneous solid mixture of a matrix of a thermally stable polymer having embedded therein discrete particles of a surface active element. Suitable thermally stable polymers include polyphenylene sulfide and suitable surface active elements include carbon, iron, nickel, cobalt, vanadium, and molybdenum. The proportion of polymer in the packing generally ranges from about 20 to about 80 percent by volume. Preferably, the matrix is prepared in porous form which may also be coated with a surface active metal.
    Type: Grant
    Filed: May 3, 1979
    Date of Patent: June 16, 1981
    Assignee: Olin Corporation
    Inventor: Harshad M. Patel
  • Patent number: 4267026
    Abstract: A process for the concentration of spent brine from the membrane electrolytic cell which comprises removing spent brine containing dissolved chlorine from the membrane electrolytic cell, feeding the spent brine to a concentration zone, applying microwave energy to the spent brine to produce concentrated brine and a gaseous mixture of chlorine and steam, feeding the concentrated brine and the gaseous mixture to a separation zone, separating the gaseous mixture from the concentrated brine, and returning the concentrated brine to the membrane electrolytic cell.Process reduces the operating and equipment costs while effectively recovering chlorine and brine values.
    Type: Grant
    Filed: December 21, 1979
    Date of Patent: May 12, 1981
    Assignee: Olin Corporation
    Inventor: Harshad M. Patel
  • Patent number: 4169774
    Abstract: Asbestos diaphragms in commercial cells for the electrolysis of brines are treated with a dispersion of an alkaline earth metal-containing silicate. Deposition of the dispersion within the diaphragm results in a decrease in hydrogen concentration in chlorine gas produced as well as an increase in current efficiency.
    Type: Grant
    Filed: July 21, 1978
    Date of Patent: October 2, 1979
    Assignee: Olin Corporation
    Inventors: Igor V. Kadija, Harshad M. Patel
  • Patent number: 4165981
    Abstract: A method and composition are described for the decomposition of sodium-mercury amalgam in a reactor containing solid packing particles to form hydrogen, sodium hydroxide, and denuded mercury. The novel packing particles are comprised of a heterogeneous solid mixture of a matrix of a thermally stable polymer having embedded therein discrete particles of a surface active composition. Suitable thermally stable polymers include polyphenylene sulfide and suitable surface active compositions include carbon, iron, nickel, cobalt, vanadium, and molybdenum. The proportion of polymer in the packing generally ranges from about 20 to about 80 percent by volume. Preferably, the matrix is prepared in porous form which may also be coated with a surface active metal.
    Type: Grant
    Filed: May 26, 1978
    Date of Patent: August 28, 1979
    Assignee: Olin Corporation
    Inventor: Harshad M. Patel
  • Patent number: 4105441
    Abstract: A method and composition are described for the decomposition of sodium-mercury amalgam in a reactor containing solid packing particles to form hydrogen, sodium hydroxide, and denuded mercury. The novel packing particles are comprised of a heterogeneous solid mixture of a matrix of a thermally stable polymer having embedded therein discrete particles of a surface active composition. Suitable thermally stable polymers include polyphenylene sulfide and suitable surface active compositions include carbon, iron, nickel, cobalt, vanadium, and molybdenum. The proportion of the polymer in the packing generally ranges from about 20 to about 80 percent by volume. Preferably, the matrix is prepared in porous form which may also be coated with a surface active metal.
    Type: Grant
    Filed: March 11, 1976
    Date of Patent: August 8, 1978
    Assignee: Olin Corporation
    Inventor: Harshad M. Patel
  • Patent number: 4055806
    Abstract: This disclosure pertains to an integrated circuit substitution device comprising a pincer-like contacting assembly which connects to the terminals of an existing integrated circuit connected to external circuitry, to be evaluated utilizing substitutional techniques. The contacting assembly is adapted to connect to an integrated circuit socket with a one to one correspondence with all the terminals of the questionable integrated circuit and the substituted integrated circuit with the exception of one or more vital connections, thus permitting the substituted integrated circuit to be passively inserted in the circuit. When the missing connection is completed manually, the substituted integrated circuit becomes active.
    Type: Grant
    Filed: January 23, 1976
    Date of Patent: October 25, 1977
    Inventor: Harshad M. Patel