Patents by Inventor Christopher Wilhelm

Christopher Wilhelm 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: 10962342
    Abstract: A blast containment system for trash cans includes a donut-shaped bag having a sealed donut-shaped bottom positioned at the base of the trash can, and an open donut-shaped top positioned and retained at a top periphery of the trash can. An open-ended tubular region extends through the bag between its donut-shaped top and donut-shaped bottom. A rigid container having an open top is disposed in the tubular region of the bag with its open top being coupled to the donut-shaped top of the bag. A liquid fills the bag. A ballistic fabric is situated inside of the trash can and outside of the donut-shaped bag.
    Type: Grant
    Filed: July 30, 2020
    Date of Patent: March 30, 2021
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventors: Christopher Wilhelm, Edward A. Lustig, Jr., Eyal Banai
  • Patent number: 10914564
    Abstract: A blast containment system for trash cans includes a donut-shaped bag having a sealed donut-shaped bottom positioned at the base of the trash can, and an open donut-shaped top positioned and retained at a top periphery of the trash can. An open-ended tubular region extends through the bag between its donut-shaped top and donut-shaped bottom. A rigid container having an open top is disposed in the tubular region of the bag with its open top being coupled to the donut-shaped top of the bag. A liquid fills the bag.
    Type: Grant
    Filed: July 30, 2020
    Date of Patent: February 9, 2021
    Assignee: The United States of America as Represented by the Secretary of the Navy
    Inventors: Christopher Wilhelm, Edward A Lustig, Jr.
  • Patent number: 10676445
    Abstract: A new azido compound, 5-amino-6-chloro-2,4-diazido-pyrimidine, and a process for synthesizing. The synthesis may include reacting 5-amino-2,4,6-trichloropyrimidine and sodium azide. There is an excess molar amount of sodium azide for each chloro fractional molar amount on the 5-amino-2,4,6-trichloropyrimidine. The synthesis is a two phase reaction that is a dispersion. The 5-amino-2,4,6-trichloropyrimidine dissolved in acetone is a liquid phase, and the sodium azide is insoluble in acetone and is a solid phase, that is present in excess of chemical equivalents. The reaction product is soluble in acetone, and the reaction by-product, sodium chloride is also insoluble in acetone, and the crude yield is about 92%. Unreacted sodium azide and formed sodium chloride are removed by filtration.
    Type: Grant
    Filed: June 6, 2019
    Date of Patent: June 9, 2020
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventors: Christopher Wilhelm, Farhad Forohar, Denisse Soto
  • Patent number: 10539404
    Abstract: A blast containment system for trash cans includes a liquid-impervious flexible bag having a sealed bottom positioned at a base of a trash can, and an unsealed top positioned and retained at a top periphery of the trash can. A ring-shaped boot is positioned at the sealed bottom of the flexible bag. A rigid container has a closed bottom press-fit into a central opening of the boot. The rigid container extends from its closed bottom to an open top adapted to be approximately aligned with the top periphery of the trash can. An annular volume is defined between the rigid container the flexible bag. The rigid container has side walls that include ballistic materials. A liquid fills the annular volume.
    Type: Grant
    Filed: March 23, 2018
    Date of Patent: January 21, 2020
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventors: Edward A. Lustig, Eric Gahagan, John W. Monico, Jr., Paul C. Perricone, William Qualls, Michael Agens, Daniel C. Jones, John Winslow, Michael Murray, Kimberly Peranich, Sr., Lee Foltz, Jesse Stuart Moran, Christopher Wilhelm, Lesley Wilhelm, John Wilkinson
  • Patent number: 10458770
    Abstract: An explosive ordnance disposal (EOD) tool has an inflated state and a deflated, collapsed state. In the inflated state, the EOD tool includes a central longitudinal axis and a radially outer portion. The radially outer portion contains an inflation composition. The radially outer portion includes an opening for admitting the inflation composition into the radially outer portion, an exterior wall and an interior wall that defines a through opening centered on the central longitudinal axis.
    Type: Grant
    Filed: January 25, 2018
    Date of Patent: October 29, 2019
    Inventors: Christopher Wilhelm, Samuel Emery, Paul Giannuzzi, Daniel McCarthy, Lesley Wilhelm
  • Patent number: 9909834
    Abstract: An explosive disruptor includes a first jacket having joined inflatable members. The inflatable members are adapted to be filled with a gas. A second jacket is surrounded by and coupled to the first jacket. The second jacket has an outer radial wall, an inner radial wall spaced apart from the outer radial wall, and two end walls coupled to opposing axial ends of the outer radial wall and the inner radial wall. A first volumetric region is defined between the outer radial wall, the inner radial wall, and the two end walls. A second volumetric region is defined by the inner radial wall. The first volumetric region is sealed and adapted to be filled with a liquid. An explosive material is disposed in the second volumetric region. A blasting cap is in contact with the explosive material.
    Type: Grant
    Filed: August 30, 2017
    Date of Patent: March 6, 2018
    Assignee: The United States of America as Represented by the Secretary of the Navy
    Inventors: Christopher Wilhelm, Angel Diaz, Lee Foltz, Daniel McCarthy