Patents by Inventor Peter J. Adair

Peter J. Adair 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).

  • Fixed partial dentures and method of making
    Patent number: 4744757
    Abstract: This invention is concerned with preparing fixed partial dentures consisting of abutment crowns and pontics connected through male/female attachments and being sealed together by means of a joining medium. In the most preferred embodiment, the parts of the dentures are formed from machinable glass-ceramic materials and the joining medium is curable through exposure to visible light radiation.
    Type: Grant
    Filed: March 20, 1985
    Date of Patent: May 17, 1988
    Assignee: Corning Glass Works
    Inventors: Peter J. Adair, Vincent T. Cammarato, David G. Grossman
  • 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
  • Glass-ceramic dental products
    Patent number: 4431420
    Abstract: Precision dental tools, models, appliances, prostheses, and attachments are produced by providing a glass body of selected conformation, and then heat treating the glass body to yield a glass-ceramic component of superior characteristics wherein tetrasilicic fluormica constitutes the predominant crystal phase.
    Type: Grant
    Filed: April 30, 1982
    Date of Patent: February 14, 1984
    Assignee: Corning Glass Works
    Inventor: Peter J. Adair