Patents by Inventor David W. MacPhee

David W. MacPhee 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).

  • Confined tube aspiration aeration devices and systems
    Patent number: 11318432
    Abstract: Various implementations include an aeration device. The aeration device includes a venturi tube and an outlet tube. The venturi tube has an outlet port and an air intake port. The outlet tube has a first end coupled to the outlet port of the venturi tube, a second end opposite and spaced apart from the first end, and an intermediate portion disposed between the first and second ends of the outlet tube. The intermediate portion is helically shaped and extends around a helical axis of the intermediate portion. The intermediate portion extends at least one rotation about the helical axis.
    Type: Grant
    Filed: February 14, 2020
    Date of Patent: May 3, 2022
    Assignee: THE BOARD OF TRUSTEES OF THE UNIVERSITY OF ALABAMA
    Inventor: David W. MacPhee
  • CONFINED TUBE ASPIRATION AERATION DEVICES AND SYSTEMS
    Publication number: 20200261865
    Abstract: Various implementations include an aeration device. The aeration device includes a venturi tube and an outlet tube. The venturi tube has an outlet port and an air intake port. The outlet tube has a first end coupled to the outlet port of the venturi tube, a second end opposite and spaced apart from the first end, and an intermediate portion disposed between the first and second ends of the outlet tube. The intermediate portion is helically shaped and extends around a helical axis of the intermediate portion. The intermediate portion extends at least one rotation about the helical axis.
    Type: Application
    Filed: February 14, 2020
    Publication date: August 20, 2020
    Inventor: David W. MacPhee