Patents by Inventor Joseph M. Matesa

Joseph M. Matesa 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).

  • Ablating liquefaction method
    Patent number: 4559071
    Abstract: Converting thermally meltable materials to a liquefied state is carried out on a support surface of the unmelted material. As liquefied material is drained from the surface, additional unmelted material is fed onto the surface to maintain a substantially constant layer of the unmelted material.
    Type: Grant
    Filed: October 16, 1984
    Date of Patent: December 17, 1985
    Assignee: PPG Industries, Inc.
    Inventors: Gerald E. Kunkle, Joseph M. Matesa
  • Ablating liquefaction employing plasma
    Patent number: 4545798
    Abstract: Converting thermally meltable materials to a liquefied state is carried out by a plasma heat source encircled by a layer of the unmelted material. As liquefied material is drained from the surface, additional unmelted material is fed onto the surface to maintain a substantially constant layer of the unmelted material, thereby maintaining the temperature of the melting vessel relatively low and eliminating the need for forced cooling of the vessel.
    Type: Grant
    Filed: June 2, 1983
    Date of Patent: October 8, 1985
    Assignee: PPG Industries, Inc.
    Inventor: Joseph M. Matesa
  • Method of calcining and liquefying glass batch
    Patent number: 4539030
    Abstract: In a two stage glass batch liquefying process, calcium source material is preheated in a first stage in the absence of the major sodium source material, and the heated calcium source material and the sodium source material are combined and liquefied in a second stage.
    Type: Grant
    Filed: August 3, 1983
    Date of Patent: September 3, 1985
    Assignee: PPG Industries, Inc.
    Inventors: Henry M. Demarest, Jr., Joseph M. Matesa
  • Glass batch liquefaction
    Patent number: 4381934
    Abstract: The initial step of melting glass, converting particulate batch materials to a partially melted, liquefied state, is carried out on a support surface of batch. As liquefied batch is drained from the surface, additional batch is fed onto the surface to maintain the surface substantially constant.
    Type: Grant
    Filed: July 30, 1981
    Date of Patent: May 3, 1983
    Assignee: PPG Industries, Inc.
    Inventors: Gerald E. Kunkle, Joseph M. Matesa
  • Method of melting glass making ingredients
    Patent number: 4380463
    Abstract: A coherent thin sheet of glass batch materials is advanced onto a pool of molten metal contained in a glass melting furnace to melt thereon, preferably in non-contacting relation to refractory sidewalls of the furnace.
    Type: Grant
    Filed: October 5, 1981
    Date of Patent: April 19, 1983
    Assignee: PPG Industries, Inc.
    Inventor: Joseph M. Matesa
  • Manufacture of flat glass at controlled throughput rate
    Patent number: 4004900
    Abstract: The rate at which a continuous sheet of flat glass is manufactured by a float process is controlled by regulating the position of a tweel in a channel or canal used for delivering molten glass for forming in response to the temperature of the molten glass and in response to directly detected width, thickness and speed of the continuous sheet of glass being conveyed from the forming process.
    Type: Grant
    Filed: September 19, 1975
    Date of Patent: January 25, 1977
    Assignee: PPG Industries, Inc.
    Inventors: Joseph R. Staahl, Jr., Joseph M. Matesa, David E. Worth