Patents by Inventor Steven E. Hahn

Steven E. Hahn 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).

  • FUEL CELL COGENERATION SYSTEM
    Publication number: 20130209901
    Abstract: A power generation system onboard an aircraft includes a fuel cell module configured to produce heat. A loop heat pipe module is coupled to the fuel cell module. The loop heat pipe module includes a first fluid that absorbs the heat from the fuel cell module and is channeled through the loop heat pipe module.
    Type: Application
    Filed: February 9, 2012
    Publication date: August 15, 2013
    Inventors: Joseph Sherman Breit, Steven E. Hahn, Randeep Singh, Masataka Mochizuki, Koichi Mashiko, Zhen Guo
  • Composite panel having a thermoplastic seam weld
    Patent number: 6565942
    Abstract: The present invention is a method for joining thermoplastic composite sandwich panels with thermoplastic welds (fusion bonds) made without autoclave processing of the joint. The preferred joint is a double interleaf staggered joint with supporting titanium doublers providing a tensile strength of at least 12,000 lb/in. The joint is particularly suited for joining sections of a cryogenic tank for spacecraft.
    Type: Grant
    Filed: April 22, 2002
    Date of Patent: May 20, 2003
    Assignee: The Boeing Company
    Inventors: David M. Anderson, Steven E. Hahn, Douglas A. McCarville
  • Composite panel having a thermoplastic seam weld
    Publication number: 20020157785
    Abstract: The present invention is a method for joining thermoplastic composite sandwich panels with thermoplastic welds (fusion bonds) made without autoclave processing of the joint. The preferred joint is a double interleaf staggered joint with supporting titanium doublers providing a tensile strength of at least 12,000 lb/in. The joint is particularly suited for joining sections of a cryogenic tank for spacecraft.
    Type: Application
    Filed: April 22, 2002
    Publication date: October 31, 2002
    Applicant: The Boeing Company
    Inventors: David M. Anderson, Steven E. Hahn, Douglas A. McCarville
  • Thermoplastic seam welds
    Publication number: 20020038687
    Abstract: The present invention is a method for joining thermoplastic composite sandwich panels with thermoplastic welds (fusion bonds) made without autoclave processing of the joint. The preferred joint is a double interleaf staggered joint with supporting titanium doublers providing a tensile strength of at least 12,000 lb/in. The joint is particularly suited for joining sections of a cryogenic tank for spacecraft.
    Type: Application
    Filed: February 23, 2001
    Publication date: April 4, 2002
    Applicant: The Boeing Company
    Inventors: David M. Anderson, Steven E. Hahn, Douglas A. McCarville
  • Thermoplastic seam welds
    Patent number: 6284089
    Abstract: The present invention is a method for joining thermoplastic composite sandwich panels with thermoplastic welds (fusion bonds) made without autoclave processing of the joint. The preferred joint is a double interleaf staggered joint with supporting titanium doublers providing a tensile strength of at least 12,000 lb/in. The joint is particularly suited for joining sections of a cryogenic tank for spacecraft.
    Type: Grant
    Filed: July 21, 1998
    Date of Patent: September 4, 2001
    Assignee: The Boeing Company
    Inventors: David M. Anderson, Steven E. Hahn, Douglas A. McCarville