Patents by Inventor David C. Cronk

David C. Cronk 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).

  • Inflatable impact attenuator for parachuted items
    Patent number: 11655030
    Abstract: A system for cushioning airdropped cargo includes a pallet supporting associated cargo. At least one lower inflatable impact attenuator in the form of a pneumatic cushion is positioned between the pallet and the cargo. A compression pad is positioned between the lower pneumatic cushion and the cargo. At least one upper pneumatic cushion is positioned atop the cargo. A parachute is connected by parachute rigging to the pallet.
    Type: Grant
    Filed: June 17, 2021
    Date of Patent: May 23, 2023
    Assignee: HDT Expeditionary Systems, Inc.
    Inventors: David C. Cronk, Thomas J. Price, Jr., Curtis Glen Lilly, II, Phillip Kevin Almarode
  • INFLATABLE IMPACT ATTENUATOR FOR PARACHUTED ITEMS
    Publication number: 20210403162
    Abstract: A system for cushioning airdropped cargo includes a pallet supporting associated cargo. At least one lower inflatable impact attenuator in the form of a pneumatic cushion is positioned between the pallet and the cargo. A compression pad is positioned between the lower pneumatic cushion and the cargo. At least one upper pneumatic cushion is positioned atop the cargo. A parachute is connected by parachute rigging to the pallet.
    Type: Application
    Filed: June 17, 2021
    Publication date: December 30, 2021
    Applicant: HDT Expeditionary Systems, Inc.
    Inventors: David C. Cronk, Thomas J. Price, JR., Curtis Glen Lilly, II, Phillip Kevin Almarode
  • Self-bracing shelter
    Patent number: 9340993
    Abstract: A self-bracing shelter includes a frame and a skin. First and second subframes are arranged in vertical planes, each including first and second feet and a central portion. A ridge beam extends axially between the first and second subframes and includes opposite first and second ends that extend axially beyond the first and second subframes, respectively, such that the opposite ends of the beam are located outside a footprint of a planform defined by the feet of the subframes. A first pair of outer tension members is connected between the first end of the beam and the first subframe on opposite sides of the beam. A second pair of outer tension members is connected between the second end of the beam and the second subframe on opposite sides of the beam.
    Type: Grant
    Filed: April 30, 2015
    Date of Patent: May 17, 2016
    Assignee: HDT Expeditionary Systems, Inc.
    Inventor: David C. Cronk
  • SELF-BRACING SHELTER
    Publication number: 20150315808
    Abstract: A self-bracing shelter includes a frame and a skin. First and second subframes are arranged in vertical planes, each including first and second feet and a central portion. A ridge beam extends axially between the first and second subframes and includes opposite first and second ends that extend axially beyond the first and second subframes, respectively, such that the opposite ends of the beam are located outside a footprint of a planform defined by the feet of the subframes. A first pair of outer tension members is connected between the first end of the beam and the first subframe on opposite sides of the beam. A second pair of outer tension members is connected between the second end of the beam and the second subframe on opposite sides of the beam.
    Type: Application
    Filed: April 30, 2015
    Publication date: November 5, 2015
    Applicant: HDT Expeditionary Systems, Inc.
    Inventor: David C. Cronk
  • Tent
    Patent number: D740905
    Type: Grant
    Filed: March 13, 2014
    Date of Patent: October 13, 2015
    Assignee: HDT Expeditionary Systems
    Inventor: David C. Cronk