Patents by Inventor Devon J. Spinelli

Devon J. Spinelli 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).

  • MXene-based voice coils and active acoustic devices
    Patent number: 11470424
    Abstract: The present disclosure is directed to electroacoustical devices comprising patterned MXene compositions on biaxially oriented polymer substrates and methods of making and using the same.
    Type: Grant
    Filed: June 4, 2019
    Date of Patent: October 11, 2022
    Assignee: Drexel University
    Inventors: Devon J. Spinelli, Thomas Heng, Asia Sarycheva, Pavel S. Lelyukh, Yury Gogotsi
  • Rate-activated helmet suspension
    Patent number: 11229253
    Abstract: Impact energy absorbing devices, in some embodiments, may be configured as a helmet having suspension elements employing “rate activated tethers” (RATs), a speed-sensitive flexible strapping material. The RATs are configured to suspend a helmet shell on the head of a wearer, so that impact to the helmet causes extension of the RATs. The RATs provide for: (1) steady force over long strokes, and (2) a stroke force that increases with increasing impact velocity. Standard impact testing of a helmeted headform shows that the RAT suspension decreases head accelerations by 50% relative to a standard suspension system. This decrease in head acceleration is expected to lead to a reduced likelihood of brain and head injury. Because the RATs absorb energy during tensile extension, they offer increases in energy absorption efficiency. These RAT suspensions can potentially replace or complement existing helmet pad and suspension systems in military, sports, and industrial safety-wear.
    Type: Grant
    Filed: March 7, 2019
    Date of Patent: January 25, 2022
    Assignee: The United States of America as represented by the Secretary of the Army
    Inventors: Eric D. Wetzel, Devon J. Spinelli, Thomas A. J. Plaisted
  • MXENE-BASED VOICE COILS AND ACTIVE ACOUSTIC DEVICES
    Publication number: 20210250693
    Abstract: The present disclosure is directed to electroacoustical devices comprising patterned MXene compositions on biaxially oriented polymer substrates and methods of making and using the same.
    Type: Application
    Filed: June 4, 2019
    Publication date: August 12, 2021
    Inventors: Devon J. SPINELLI, Thomas HENG, Asia SARYCHEVA, Pavel S. LELYUKH, Yury GOGOTSI
  • RATE-ACTIVATED HELMET SUSPENSION
    Publication number: 20200022443
    Abstract: Impact energy absorbing devices, in some embodiments, may be configured as a helmet having suspension elements employing “rate activated tethers” (RATs), a speed-sensitive flexible strapping material. The RATs are configured to suspend a helmet shell on the head of a wearer, so that impact to the helmet causes extension of the RATs. The RATs provide for: (1) steady force over long strokes, and (2) a stroke force that increases with increasing impact velocity. Standard impact testing of a helmeted headform shows that the RAT suspension decreases head accelerations by 50% relative to a standard suspension system. This decrease in head acceleration is expected to lead to a reduced likelihood of brain and head injury. Because the RATs absorb energy during tensile extension, they offer increases in energy absorption efficiency. These RAT suspensions can potentially replace or complement existing helmet pad and suspension systems in military, sports, and industrial safety-wear.
    Type: Application
    Filed: March 7, 2019
    Publication date: January 23, 2020
    Inventors: Eric D. Wetzel, Devon J. Spinelli, Thomas A. J. Plaisted