Patents by Inventor Joo Hyun Han

Joo Hyun Han 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).

  • Device for tensioning a preform
    Patent number: 8944128
    Abstract: An apparatus for tensioning a preform may include a mandrel to receive a preform. The mandrel may have a first mandrel end and a second mandrel end. The preform may have a first preform end and a second preform end. The apparatus may include an anchoring groove disposed at the first mandrel end, and an anchoring device being configured and located to urge the first preform end towards the anchoring groove to secure the first preform end therebetween. The apparatus may include a tensioning groove disposed between the first mandrel end and the second mandrel end, and a tensioning device being configured and located to urge at least a portion of the preform into the tensioning groove.
    Type: Grant
    Filed: June 25, 2012
    Date of Patent: February 3, 2015
    Assignee: The Boeing Company
    Inventors: Michael L. Glain, David J. Kehrl, Andrew E. Modin, Scott A. Harris, Robert A. Coleman, Andrew Head, Steven C. Stenard, Thomas R. Cundiff, Joo Hyun Han, Timothy D. Aquino
  • Tensioning device for composite structures
    Patent number: 8303757
    Abstract: An apparatus to prepare a preform for fabrication includes a mandrel, anchoring groove, anchoring device, tensioning groove, and tensioning device. The mandrel receives the preform. The mandrel has a first mandrel end and a second mandrel end. The preform has a first preform end and a second preform end. The anchoring groove is disposed at the first mandrel end. The anchoring device is configured and located to urge the first preform end towards the anchoring groove to secure the first preform end therebetween. The tensioning groove is disposed between the first mandrel end and the second mandrel end. The tensioning device is configured and located to urge a portion of the preform into the tensioning groove.
    Type: Grant
    Filed: December 4, 2006
    Date of Patent: November 6, 2012
    Assignee: The Boeing Company
    Inventors: Michael L. Glain, David J. Kehrl, Andrew E. Modin, Scott A. Harris, Robert A. Coleman, Andrew Head, Steven C. Stenard, Thomas R. Cundiff, Joo Hyun Han, Timothy D. Aquino
  • DEVICE FOR TENSIONING A PREFORM
    Publication number: 20120263818
    Abstract: An apparatus for tensioning a preform may include a mandrel to receive a preform. The mandrel may have a first mandrel end and a second mandrel end. The preform may have a first preform end and a second preform end. The apparatus may include an anchoring groove disposed at the first mandrel end, and an anchoring device being configured and located to urge the first preform end towards the anchoring groove to secure the first preform end therebetween. The apparatus may include a tensioning groove disposed between the first mandrel end and the second mandrel end, and a tensioning device being configured and located to urge at least a portion of the preform into the tensioning groove.
    Type: Application
    Filed: June 25, 2012
    Publication date: October 18, 2012
    Applicant: THE BOEING COMPANY
    Inventors: Michael L. GLAIN, David J. KEHRL, Andrew E. MODIN, Scott A. HARRIS, Robert A. COLEMAN, Andrew HEAD, Steven C. STENARD, Thomas R. CUNDIFF, Joo Hyun HAN, Timothy D. AQUINO
  • Tensioning device for composite structures
    Publication number: 20080283177
    Abstract: An apparatus to prepare a preform for fabrication includes a mandrel, anchoring groove, anchoring device, tensioning groove, and tensioning device. The mandrel receives the preform. The mandrel has a first mandrel end and a second mandrel end. The preform has a first preform end and a second preform end. The anchoring groove is disposed at the first mandrel end. The anchoring device is configured and located to urge the first preform end towards the anchoring groove to secure the first preform end therebetween. The tensioning groove is disposed between the first mandrel end and the second mandrel end. The tensioning device is configured and located to urge a portion of the preform into the tensioning groove.
    Type: Application
    Filed: December 4, 2006
    Publication date: November 20, 2008
    Inventors: Michael L. Glain, David J. Kehrl, Andrew E. Modin, Scott A. Harris, Robert A. Coleman, Andrew Head, Steven C. Stenard, Thomas R. Cundiff, Joo Hyun Han, Timothy D. Aquino