Patents by Inventor Todd E. Hubbell

Todd E. Hubbell 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).

  • Radiused lead-in for interference fit fasteners
    Patent number: 10641307
    Abstract: An assembly comprising first and second structural elements having aligned holes, an fastener that occupies at least respective portions of the holes without a surrounding sleeve, and a mating part that is coupled to the fastener. The fastener comprises: a head; a circular cylindrical shank extending from the head; a mating portion comprising external projections; and a transition portion disposed between the shank and the mating portion. The transition portion comprises a first radiused lead-in section that meets the shank at a shank/lead-in intersection and a second radiused lead-in section that meets the first radiused lead-in section. The first radiused lead-in section curves gradually in a first axial direction toward the mating portion and has a first profile that is a circular arc having a first radius, while the second radiused lead-in section curves abruptly in the first axial direction and has a second profile that is a circular arc having a second radius which is much smaller than the first radius.
    Type: Grant
    Filed: February 20, 2017
    Date of Patent: May 5, 2020
    Assignee: The Boeing Company
    Inventors: Blake A. Simpson, Tanni Sisco, Todd E. Hubbell, Jeffrey A. Wilkerson
  • Radiused Lead-In for Interference Fit Fasteners
    Publication number: 20180238370
    Abstract: An assembly comprising first and second structural elements having aligned holes, an fastener that occupies at least respective portions of the holes without a surrounding sleeve, and a mating part that is coupled to the fastener. The fastener comprises: a head; a circular cylindrical shank extending from the head; a mating portion comprising external projections; and a transition portion disposed between the shank and the mating portion. The transition portion comprises a first radiused lead-in section that meets the shank at a shank/lead-in intersection and a second radiused lead-in section that meets the first radiused lead-in section. The first radiused lead-in section curves gradually in a first axial direction toward the mating portion and has a first profile that is a circular arc having a first radius, while the second radiused lead-in section curves abruptly in the first axial direction and has a second profile that is a circular arc having a second radius which is much smaller than the first radius.
    Type: Application
    Filed: February 20, 2017
    Publication date: August 23, 2018
    Applicant: The Boeing Company
    Inventors: Blake A. Simpson, Tanni Sisco, Todd E. Hubbell, Jeffrey A. Wilkerson