Patents by Inventor John Sequeira

John Sequeira 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).

  • Publication number: 20240087847
    Abstract: The present disclosure is directed to an antenna array. The antenna array includes a plurality of dielectric windows coupled to a support structure comprising a plurality of gas ports, a primary frame comprising a primary conduit connected to a power source and a plurality of secondary frames supported by the primary frame. The secondary frame includes a secondary conduit connected to the primary conduit. A plurality of inductive couplers are disposed over the plurality of dielectric windows and supported by the secondary frames. The plurality of inductive couplers include a plurality of antenna connectors and a plurality of plurality of antennas. The plurality of antenna connectors connect the plurality of antennas to the secondary conduit.
    Type: Application
    Filed: September 9, 2022
    Publication date: March 14, 2024
    Inventors: Zheng John YE, Jeevan Prakash SEQUEIRA, Chien-Teh KAO, Tae Kyung WON, Young Dong LEE, Soo Young CHOI, Suhail ANWAR, Jianhua ZHOU
  • Patent number: 11209255
    Abstract: An improved process provides high-density pre-form billets that meet dimensional limitations required for case-load tooling. Previous isostatic fill procedures were improved in two ways to accommodate varying bulk densities or powder compositions. First, during the isostatic fill procedure, the powder fill is subject to both a high frequency vibration and a high amplitude, low frequency impulse. The combination of these two inputs is critical to ensure polymer bonded explosives pack to consistent densities. Second, unlike in conventional practices, the fill rate is kept constant throughout the entire fill process and the mold is completely filled by the time the required powder mass has been dispensed.
    Type: Grant
    Filed: September 3, 2020
    Date of Patent: December 28, 2021
    Assignee: The United States of America as Represented by the Secretary of the Army
    Inventors: John Sequeira, Sean Swaszek
  • Patent number: 10988231
    Abstract: Disclosed are structures and features of a space frame aircraft. In particular, this disclosure relates to a space frame aircraft with a pressure membrane.
    Type: Grant
    Filed: May 24, 2017
    Date of Patent: April 27, 2021
    Assignee: The Boeing Company
    Inventors: Robert Erik Grip, Kevin John Sequeira
  • Publication number: 20180022435
    Abstract: Disclosed are structures and features of a space frame aircraft. In particular, this disclosure relates to a space frame aircraft with a pressure membrane.
    Type: Application
    Filed: May 24, 2017
    Publication date: January 25, 2018
    Inventors: Robert Erik Grip, Kevin John Sequeira
  • Patent number: 9546856
    Abstract: A method of filling a projectile case with energetic material includes isostatically pressing a column of the powder to create a pre-formed billet (PFB). The single PFB is placed in and then pressed into the projectile case to create the finished warhead. The single PFB effectively fills a projectile case having a large l/d ratio. The single PFB eliminates the problems and poor quality associated with pressing multiple increments in a projectile case.
    Type: Grant
    Filed: September 22, 2014
    Date of Patent: January 17, 2017
    Assignee: The United States of America as Represented by the Secretary of the Army
    Inventors: John Centrella, John Sequeira