Patents by Inventor Michael P. Hobczuk

Michael P. Hobczuk 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).

  • Direct bonding of glass articles for drawing
    Publication number: 20030164006
    Abstract: Methods of bonding glass articles that are subsequently drawn into sheets, rods, fibers, etc. are disclosed. Bonding is achieved without use of adhesives or high temperature fusion. The invention is particularly useful for bonding optical fiber preforms prior to drawing of the optical fiber.
    Type: Application
    Filed: August 28, 2002
    Publication date: September 4, 2003
    Inventors: Karl H. Buchanan, Glen B. Cook, Charles M. Darcangelo, Ronald W. Davis, Patrick Gedeon, Suresh T. Gulati, Michael D. Harris, Michael P Hobczuk, Jeffrey M. King, Robert Sabia, Gary G Squier, Betty J. Sterlace, Elizabeth M. Vileno
  • Embedding material useful in preparing glass-ceramic products
    Patent number: 4478641
    Abstract: The instant invention relates to the development of an embedment material suitable for use in heat treating glass castings to convert them into glass-ceramic articles, whereby the shrinkage customarily experienced resulting from densification of the casting during conversion to a glass-ceramic is minimized and sound glass-ceramic articles of tight dimensional tolerances can be produced. The inventive embedment materials will:(a) contain an inorganic component which is subject to an inversion accompanied with a large change in volume at a temperature below the set point of the glass-ceramic article;(b) demonstrate a coefficient of thermal expansion equal to or no more than about 40.times.10.sup.-7 /.degree.C.
    Type: Grant
    Filed: March 21, 1983
    Date of Patent: October 23, 1984
    Assignee: Corning Glass Works
    Inventors: Peter J. Adair, Michael P. Hobczuk, Paul I. Kingsbury, John W. Nelson