Patents by Inventor Brian J. McAndrews

Brian J. McAndrews 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).

  • ENCLOSED CRYSTAL GROWTH
    Publication number: 20230383432
    Abstract: Various single crystals are disclosed including sapphire as well as methods of forming the same. A method of forming a crystalline structure is disclosed as well. The method can include providing a melt in a crucible having a die. The die can include a ventilation opening. The method can further include growing the crystalline structure from the die using an enclosed seed. The single crystals can have desirable geometric properties, including a length greater than a diameter greater than a thickness.
    Type: Application
    Filed: May 25, 2023
    Publication date: November 30, 2023
    Inventors: David J. WEEDEN, Brian J. McANDREWS, Guilford Leroy MACK, III, Ralph L. MACLEAN, JR.
  • Eutectic bonding of single crystal components
    Patent number: 6012303
    Abstract: The present invention provides for a method and articles produced from this method for eutectically bonding together single crystal elements, such as sapphire, to form a strong bond therebetween which can withstand high temperatures and chemical attack. The eutectic bonding mixture of the present invention can include a Group IIIA compound, such as yttria.
    Type: Grant
    Filed: June 11, 1997
    Date of Patent: January 11, 2000
    Assignee: Saphikon, Inc.
    Inventors: Scott R. Axelson, Herbert E. Bates, Joseph M. Collins, Jeremiah J. Fitzgibbon, John W. Locher, Brian J. McAndrews
  • Method for providing an extension on an end of an article having internal passageways
    Patent number: 5291937
    Abstract: An extension is provided on an end of an article having internal passageways and having a directionally oriented microstructure by using the article end as a growth seed in a molten material compatible with material from which the article end is made. The extension is directionally solidified as integral with and as an extension of the article end and with a microstructure compatible with that of the article end.
    Type: Grant
    Filed: July 30, 1992
    Date of Patent: March 8, 1994
    Assignee: General Electric Company
    Inventors: Reed R. Corderman, Kevin G. McAllister, Brian J. McAndrews, John W. Locker