Patents by Inventor Mark Geissler

Mark Geissler 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).

  • Single crystal engine valve
    Patent number: 9644504
    Abstract: A valve for use in an internal combustion engine is disclosed. The valve includes a stem friction welded to a head portion. The head portion is cast from a single crystal metal using a casting process that creates little or no grain boundaries. The single crystal metal can be a nickel based superalloys such as CMSX-4, CMSX 3, Rene N5, and Rene N6. By having little or no grain boundaries, defects that occur in other types of casting material, such as large numbers of grain boundaries can be minimized. This allows the head portion and particularly the combustion face to withstand an operating temperature in the combustion chamber in excess of 850° C.
    Type: Grant
    Filed: March 17, 2015
    Date of Patent: May 9, 2017
    Assignee: Caterpillar Inc.
    Inventors: Mark Veliz, Mark Geissler
  • Single Crystal Engine Valve
    Publication number: 20160273418
    Abstract: A valve for use in an internal combustion engine is disclosed. The valve includes a stem friction welded to a head portion. The head portion is cast from a single crystal metal using a casting process that creates little or no grain boundaries. The single crystal metal can be a nickel based superalloys such as CMSX-4, CMSX 3, Rene N5, and Rene N6. By having little or no grain boundaries, defects that occur in other types of casting material, such as large numbers of grain boundaries can be minimized. This allows the head portion and particularly the combustion face to withstand an operating temperature in the combustion chamber in excess of 850° C.
    Type: Application
    Filed: March 17, 2015
    Publication date: September 22, 2016
    Applicant: Caterpillar Inc.
    Inventors: Mark Veliz, Mark Geissler