Patents by Inventor David A. Hummer

David A. Hummer 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).

  • Patent number: 11519202
    Abstract: Apparatus, systems, and methods for selectively locking and unlocking a passenger door. The apparatus includes a first shaft, having a first longitudinal centerline, and a member, connected to the first shaft. A handle is connected to the first shaft via the member, the handle being movable via rotation of the first shaft from a locked position and an unlocked position. A first protrusion extends from the handle and a latch crank is connected to the second shaft. A second protrusion extends from the latch crank and a linkage is connected between the latch crank and the member. When the handle in the locked position, the first protrusion is positioned adjacent to the second protrusion to prevent rotation of the second shaft. When the handle is in the unlocked position, the first protrusion is positioned away from the second protrusion to enable the second shaft to rotate.
    Type: Grant
    Filed: June 9, 2020
    Date of Patent: December 6, 2022
    Assignee: The Boeing Company
    Inventor: David A. Hummer
  • Publication number: 20210381285
    Abstract: Apparatus, systems, and methods for selectively locking and unlocking a passenger door. The apparatus includes a first shaft, having a first longitudinal centerline, and a member, connected to the first shaft. A handle is connected to the first shaft via the member, the handle being movable via rotation of the first shaft from a locked position and an unlocked position. A first protrusion extends from the handle and a latch crank is connected to the second shaft. A second protrusion extends from the latch crank and a linkage is connected between the latch crank and the member. When the handle in the locked position, the first protrusion is positioned adjacent to the second protrusion to prevent rotation of the second shaft. When the handle is in the unlocked position, the first protrusion is positioned away from the second protrusion to enable the second shaft to rotate.
    Type: Application
    Filed: June 9, 2020
    Publication date: December 9, 2021
    Inventor: David A. Hummer
  • Patent number: 9120908
    Abstract: Provided are nanomaterial-reinforced resin compositions and related methods. The compositions include a reinforcing material, such as graphene, polyamic acid, carbon nanotubes, or dimethylacetamide that is dispersed into a resin. The reinforcing material is present in the resin at from about 0.001 to about 10 wt %. Also provided are methods of fabricating these compositions and methods of tailoring a composition to achieve a particular set of mechanical properties.
    Type: Grant
    Filed: March 28, 2011
    Date of Patent: September 1, 2015
    Assignee: UNIVERSITY OF HAWAII
    Inventors: Richard Russ, Mehrdad Ghasemi-Nejhad, Atul Tiwari, Anupama Chaturvedi, David A. Hummer, Vamshi Gudapati
  • Publication number: 20110245378
    Abstract: Provided are nanomaterial-reinforced resin compositions and related methods. The compositions include a reinforcing material, such as graphene, polyamic acid, carbon nanotubes, or dimethylacetamide that is dispersed into a resin. The reinforcing material is present in the resin at from about 0.001 to about 10 wt %. Also provided are methods of fabricating these compositions and methods of tailoring a composition to achieve a particular set of mechanical properties.
    Type: Application
    Filed: March 28, 2011
    Publication date: October 6, 2011
    Inventors: Richard Russ, Mehrdad Ghasemi-Nejhad, Atul Tiwari, Anupama Chaturvedi, David A. Hummer, Vamshi Gudapati
  • Patent number: D893640
    Type: Grant
    Filed: March 15, 2018
    Date of Patent: August 18, 2020
    Assignee: BURN BARRE, LLC
    Inventors: Eric Jelen, David Hummer, Evan Charles Huggins, Gerald Iannaccone