Patents by Inventor Shan-Pu Tsai

Shan-Pu Tsai 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).

  • Modified liquid permeable asbestos diaphragms with improved dimensional stability
    Patent number: 4665120
    Abstract: A blend of fluorocarbon polymers for incorporation into an asbestos fiber slurry for forming into a diaphragm is disclosed. The blend comprises fluorocarbon polymer fibers and fluorocarbon polymer chunks of certain sizes in certain weight ratios. Also disclosed is a diaphragm comprised of the asbestos and two types of fluorocarbon polymers, as well as a method of making same.
    Type: Grant
    Filed: December 9, 1985
    Date of Patent: May 12, 1987
    Assignee: ELTECH Systems Corporation
    Inventors: Louis W. Hruska, Shan-Pu Tsai
  • Modified liquid permeable asbestos diaphragms with improved dimensional stability
    Patent number: 4563260
    Abstract: A blend of fluorocarbon polymers for incorporation into an asbestos fiber slurry for forming into a diaphragm is disclosed. The blend comprises fluorocarbon polymer fibers and fluorocarbon polymer chunks of certain sizes in certain weight ratios. Also disclosed is a diaphragm comprised of the asbestos and two types of fluorocarbon polymers, as well as a method of making same.
    Type: Grant
    Filed: November 28, 1983
    Date of Patent: January 7, 1986
    Assignee: ELTECH Systems Corporation
    Inventors: Louis W. Hruska, Shan-Pu Tsai
  • Modified liquid permeable asbestos diaphragms with improved dimensional stability
    Patent number: 4447566
    Abstract: Improved resin reinforced, asbestos diaphragms for use in chlor-alkali cells and their method of manufacture are disclosed.
    Type: Grant
    Filed: January 27, 1983
    Date of Patent: May 8, 1984
    Assignee: Eltech Systems Corp.
    Inventors: Louis W. Hruska, Shan-Pu Tsai
  • Dimensionally stable asbestos-polytetrafluoroethylene diaphragms for chloralkali electrolytic cells
    Patent number: 4444640
    Abstract: Diaphragm coated electrodes, processes for producing these diaphragm coated electrodes, and application of the diaphragm coated electrodes in electrolytic cells used in the electrolysis of brine to produce chlorine and caustic are disclosed.
    Type: Grant
    Filed: March 29, 1982
    Date of Patent: April 24, 1984
    Assignee: Diamond Shamrock Corporation
    Inventors: Shan-Pu Tsai, Leo L. Benezra, Lewis R. Horvat, John P. Hazzard
  • Method for lowering chlorate content of alkali metal hydroxides
    Patent number: 4055476
    Abstract: A method of minimizing chlorate formation when brines are decomposed in diaphragm type electrolytic cells which comprises adding brine containing dissolved nickel values periodically to said cell while continuing operation of the cell. The nickel values can be added whenever the chlorate content of the alkali metal hydroxide increases to again minimize chlorate formation.
    Type: Grant
    Filed: January 21, 1977
    Date of Patent: October 25, 1977
    Assignee: Diamond Shamrock Corporation
    Inventors: Leo L. Benezra, David W. Hill, Arnold Riihimaki, Shan-Pu Tsai