Patents by Inventor Thomas A. Sandin

Thomas A. Sandin 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).

  • Brazeable Zirconia Ceramics, Methods Of Brazing Zirconia Ceramics, And Brazed Zirconia Ceramics
    Publication number: 20190031571
    Abstract: A method of brazing a sintered zirconia ceramic body, comprises: providing a sintered zirconia ceramic body having a surface; chemically reducing the sintered zirconia ceramic body in whole or in part to form a reduced surface to the sintered zirconia ceramic body; applying a brazing material to at least part of the reduced surface to form an assembly comprising said brazing material and sintered zirconia ceramic body; heating said assembly to a temperature sufficient to at least partially melt the brazing material such that the brazing material wets the reduced surface; and cooling the assembly to solidify the brazing material.
    Type: Application
    Filed: January 26, 2017
    Publication date: January 31, 2019
    Inventor: Thomas Sandin
  • Method of joining ceramic or graphite to metal with an alloy having high nickel or cobalt content, alloys for joining the same, and products formed therewith
    Patent number: 6877651
    Abstract: A brazed product has a metal substrate, a ceramic or graphite substrate, and a brazing alloy containing one of a high nickel content and cobalt content joining the ceramic or graphite substrate to the metal substrate. A method of joining these materials include providing a metal layer coating of titanium or nickel on the surface of the ceramic or graphite substrate to be joined or using a high nickel content or high cobalt content and containing titanium. The brazing alloy contains a high nickel content 70-95% by weight, or a high cobalt content between 45-55% by weight. This brazing alloy can contain titanium in the range between 0.5-5% by weight.
    Type: Grant
    Filed: December 2, 2002
    Date of Patent: April 12, 2005
    Inventor: Thomas A. Sandin
  • Method for brazing components using a Ni-Au-P ternary brazing alloy, the assembly so produced and the ternary alloy
    Patent number: 6863995
    Abstract: A method for using a novel ternary nickel-gold-phosphorus brazing alloy for joining nickel-based components together and the assembly so formed.
    Type: Grant
    Filed: May 16, 2003
    Date of Patent: March 8, 2005
    Assignee: Praxair S.T. Technology, Inc.
    Inventor: Thomas A. Sandin
  • METHOD OF JOINING CERAMIC OR GRAPHITE TO METAL WITH AN ALLOY HAVING HIGH NICKEL OR COBALT CONTENT, ALLOYS FOR JOINING THE SAME, AND PRODUCTS FORMED THEREWITH
    Publication number: 20050040210
    Abstract: A brazed product has a metal substrate, a ceramic or graphite substrate, and a brazing alloy containing one of a high nickel content and cobalt content joining the ceramic or graphite substrate to the metal substrate. A method of joining these materials include providing a metal layer coating of titanium or nickel on the surface of the ceramic or graphite substrate to be joined or using a high nickel content or high cobalt content and containing titanium. The brazing alloy contains a high nickel content 70-95% by weight, or a high cobalt content between 45-55% by weight. This brazing alloy can contain titanium in the range between 0.5-5% by weight.
    Type: Application
    Filed: December 2, 2002
    Publication date: February 24, 2005
    Inventor: Thomas Sandin
  • Method for brazing components using a Ni-Au-P ternary brazing alloy, the assembly so produced and the ternary alloy
    Publication number: 20040229069
    Abstract: A method for using a novel ternary nickel-gold-phosphorus brazing alloy for joining nickel-based components together and the assembly so formed.
    Type: Application
    Filed: May 16, 2003
    Publication date: November 18, 2004
    Inventor: Thomas A. Sandin