Patents by Inventor Zung S. Chang

Zung S. Chang 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).

  • Liquid cooling system for glass forming apparatus
    Patent number: 4140512
    Abstract: A closed liquid cooling system is provided within a mold body and pressurized to a desired extent so as to control the amount of heat removed from a glass-contacting mold wall portion through nucleate boiling, while simultaneously creating a thermal-siphon effect to avoid film boiling which would create an undesirable vapor insulating layer adjacent such mold wall.
    Type: Grant
    Filed: March 27, 1978
    Date of Patent: February 20, 1979
    Assignee: Corning Glass Works
    Inventors: Arieh Carmi, Zung S. Chang, Thomas J. Rayeski
  • Glass pressing plunger cooling
    Patent number: 4094657
    Abstract: A differentially cooled plunger cooperative with a mold for press forming glass articles and the method of cooling pressed glass articles formed in said mold by use of the pressing plunger. The plunger is designed so that cooling fluid may be supplied from a single source thereof to different zones or regions of the plunger for differential cooling of the zones or regions and of a glass article press formed by the plunger.
    Type: Grant
    Filed: June 3, 1977
    Date of Patent: June 13, 1978
    Assignee: Corning Glass Works
    Inventors: Arieh Carmi, Zung S. Chang, Thomas J. Rayeski
  • Glass pressing plunger cooling
    Patent number: 4059429
    Abstract: A differentially cooled plunger cooperative with a mold for press forming glass articles and the method of cooling pressed glass articles formed in said mold by use of the pressing plunger. The plunger is designed so that cooling fluid may be supplied from a single source thereof to different zones or regions of the plunger for differential cooling of the zones or regions and of a glass article press formed by the plunger.
    Type: Grant
    Filed: October 4, 1976
    Date of Patent: November 22, 1977
    Assignee: Corning Glass Works
    Inventors: Arien Carmi, Zung S. Chang, Thomas J. Rayeski
  • Swirl exhaust gas flow distribution for catalytic conversion
    Patent number: 3964875
    Abstract: In an exhaust system for an internal combustion engine, wherein pollutants are removed from the exhaust gases by catalytic conversion, a pinwheel type of deflector positioned within the exhaust flow provides a radially-outwardly deflected swirl flow to the gases as they emanate from an exhaust pipe of one diameter into a canister of larger diameter for housing a catalytic converter. Such flow distribution results in improved catalytic conversion efficiencies obtainable by the converter and reduces its degradation rate inherent with time.
    Type: Grant
    Filed: December 9, 1974
    Date of Patent: June 22, 1976
    Assignee: Corning Glass Works
    Inventors: Zung S. Chang, John S. Howitt, Robert V. VanDewoestine