Patents by Inventor Michael J. Gehron

Michael J. Gehron 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).

  • Publication number: 20130160426
    Abstract: An injector assembly for a rocket engine includes a thermal insulating layer adjacent to an oxidizer cavity.
    Type: Application
    Filed: December 23, 2011
    Publication date: June 27, 2013
    Inventors: Bradley C. Johnson, John A. Harris, III, Michael J. Gehron
  • Patent number: 8236190
    Abstract: A method of removing recast from a substrate is disclosed. The method includes chemically removing the recast using an etchant, which provides a visual indication of the presence of the recast when the part has been removed from the etchant. One example chemical etchant is comprised of a sulfuric acid solution that includes sodium chloride, sodium fluoride and ammonium persulfate. After chemical removal of the recast from the substrate, the recast is physically removed from the substrate, for example, by media blasting. The chemical and physical recast removal process can be repeated as desired. To ensure that all the recast has been removed, the substrate is wiped, for example, using a cloth. If all the recast has been removed, the cloth will not change in appearance or color.
    Type: Grant
    Filed: June 13, 2008
    Date of Patent: August 7, 2012
    Assignee: United Technologies Corporation
    Inventors: Michael J. Gehron, Henry M. Hodgens
  • Publication number: 20090308761
    Abstract: A method of removing recast from a substrate is disclosed. The method includes chemically removing the recast using an etchant, which provides a visual indication of the presence of the recast when the part has been removed from the etchant. One example chemical etchant is comprised of a sulfuric acid solution that includes sodium chloride, sodium fluoride and ammonium persulfate. After chemical removal of the recast from the substrate, the recast is physically removed from the substrate, for example, by media blasting. The chemical and physical recast removal process can be repeated as desired. To ensure that all the recast has been removed, the substrate is wiped, for example, using a cloth. If all the recast has been removed, the cloth will not change in appearance or color.
    Type: Application
    Filed: June 13, 2008
    Publication date: December 17, 2009
    Inventors: Michael J. Gehron, Henry M. Hodgens