Patents by Inventor David Benjamin Redgate

David Benjamin Redgate 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).

  • Gas lift pump apparatus with ultrasonic energy generator and method
    Patent number: 10711807
    Abstract: A gas lift pump apparatus for treating ballast water includes a column through which a liquid medium, such as seawater, may be pumped by gas lift. The apparatus includes a delivery device for delivering a flow of a gas into the liquid medium, and a resonance chamber that generates ultrasonic energy therein by the flow of the gas therethrough. The apparatus is operable to launch the ultrasonic energy into the liquid medium in the column.
    Type: Grant
    Filed: June 29, 2011
    Date of Patent: July 14, 2020
    Assignee: COLDHARBOUR MARINE LIMITED
    Inventors: Richard Eric Whiteside, David Benjamin Redgate, Tobias Mark Wells
  • GAS LIFT PUMP APPARATUS WITH ULTRASONIC ENERGY GENERATOR AND METHOD
    Publication number: 20130160688
    Abstract: Gas lift pump apparatus comprising a column through which a liquid medium may be pumped by gas lift, the apparatus comprising a delivery device for delivering a flow of a gaseous fluid into the liquid medium, the device comprising means for generating ultrasonic energy therein by the flow of gaseous fluid therethrough, the device being operable to launch the ultrasonic energy into the liquid medium in the column.
    Type: Application
    Filed: June 29, 2011
    Publication date: June 27, 2013
    Inventors: Richard Eric Whiteside, David Benjamin Redgate, Tobias Mark Wells