Patents by Inventor Michael J Long

Michael J Long 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).

  • Apparatus for directing particles in a fluid
    Patent number: 7373805
    Abstract: There is disclosed apparatus for directing particles entrained in a fluid, comprising a chamber having a first wall, including means for generating a sound wave having a frequency v, and a second, opposite wall capable of reflecting the sound wave in which the first and second wall define a conduit for the passage of the fluid, and in which the thickness of the second wall is such that the path length of the standing wave in the second wall is a multiple of about ½ the wavelength ?r of the sound wave therein.
    Type: Grant
    Filed: March 18, 2003
    Date of Patent: May 20, 2008
    Assignee: The Secretary of State for Defence
    Inventors: Jeremy John Hawkes, Michael J Long, William Terence Coakley, Martin Bernard McDonnell