Patents by Inventor Larry Dean Hefti

Larry Dean Hefti 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).

  • HOT BOX EXCHANGE CAPABILITY AND METHOD THEREOF
    Publication number: 20240116098
    Abstract: A removable hot box is disclosed that includes a lower hot box portion, comprising: a lower housing comprising a plurality of lower clamping structures to clamp the lower housing to a press and locating structures to provide repeatable placing in the press; and a lower heating platen, received within the lower housing, wherein the lower housing or the lower heating platen comprises lower electrical connectors to provide a lower electrical connection to a heating system and lower cooling connectors to provide a lower cooling connection to a cooling system; and an upper hot box portion, positionable above the lower hot box portion and comprising: an upper housing comprising a plurality of upper clamping structures to clamp the upper housing to the press; an upper heating platen, received within the upper housing.
    Type: Application
    Filed: October 11, 2022
    Publication date: April 11, 2024
    Applicant: The Boeing Company
    Inventors: Donald Lloyd CONAWAY, Larry Dean HEFTI, Craig Eric KNOWLES, John Vincenzo STORR, Alexander SANCHO GARCIA, Marco BUCCONI, David James FALCONER FYVIE, Innes Ewan Edward EDRIDGE, Diego GONZALEZ, Steven PACIFICO
  • Systems for removing lubricants from superplastic-forming or hot-forming dies
    Patent number: 10518298
    Abstract: A method of cleaning a superplastic-forming or a hot-forming die includes exposing a surface of the die having a lubricant thereon to electromagnetic energy. The electromagnetic energy removes the lubricant without removing an oxide layer between the die surface and the lubricant.
    Type: Grant
    Filed: February 8, 2016
    Date of Patent: December 31, 2019
    Assignee: The Boeing Company
    Inventors: Marc James Petersen, Larry Dean Hefti, Gregory L. Ramsey
  • Systems for removing lubricants from superplastic-forming or hot-forming dies
    Patent number: 9381548
    Abstract: A method of cleaning a die having an oxide layer is provided. The method includes discharging electromagnetic energy towards a working surface of the die having a layer of at least one of graphite and boron nitride thereon. The electromagnetic energy is discharged at a power output between about 6 kW and about 15 kW such that the layer of at least one of graphite and boron nitride is ablated, and such that the layer is removed without removing an oxide layer between the surface of the die and the layer.
    Type: Grant
    Filed: February 8, 2016
    Date of Patent: July 5, 2016
    Assignee: The Boeing Company
    Inventors: Marc James Petersen, Larry Dean Hefti, Gregory L. Ramsey
  • SYSTEMS FOR REMOVING LUBRICANTS FROM SUPERPLASTIC-FORMING OR HOT-FORMING DIES
    Publication number: 20160158810
    Abstract: A method of cleaning a superplastic-forming or a hot-forming die includes exposing a surface of the die having a lubricant thereon to electromagnetic energy. The electromagnetic energy removes the lubricant without removing an oxide layer between the die surface and the lubricant.
    Type: Application
    Filed: February 8, 2016
    Publication date: June 9, 2016
    Inventors: Marc James Petersen, Larry Dean Hefti, Gregory L. Ramsey
  • SYSTEMS FOR REMOVING LUBRICANTS FROM SUPERPLASTIC-FORMING OR HOT-FORMING DIES
    Publication number: 20160158811
    Abstract: A method of cleaning a die having an oxide layer is provided. The method includes discharging electromagnetic energy towards a working surface of the die having a layer of at least one of graphite and boron nitride thereon. The electromagnetic energy is discharged at a power output between about 6 kW and about 15 kW such that the layer of at least one of graphite and boron nitride is ablated, and such that the layer is removed without removing an oxide layer between the surface of the die and the layer.
    Type: Application
    Filed: February 8, 2016
    Publication date: June 9, 2016
    Inventors: Marc James Petersen, Larry Dean Hefti, Gregory L. Ramsey
  • Methods and systems for removing lubricants from superplastic-forming or hot-forming dies
    Patent number: 9272312
    Abstract: A method of cleaning a superplastic-forming or a hot-forming die includes exposing a surface of the die having a lubricant thereon to electromagnetic energy. The electromagnetic energy removes the lubricant without removing an oxide layer between the die surface and the lubricant.
    Type: Grant
    Filed: January 2, 2013
    Date of Patent: March 1, 2016
    Assignee: The Boeing Company
    Inventors: Marc James Petersen, Larry Dean Hefti, Gregory L. Ramsey