Patents by Inventor Quy Duc Bui

Quy Duc Bui 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: 7124964
    Abstract: A flexible, self-adjusting flow nozzle is provided, optimally configured for agricultural uses. The nozzle flexes automatically in response to changes in fluid pressure, thereby maintaining an optimal droplet size and spray area for a variety of flow rates. The self-adjusting characteristic of the nozzle allows for the creation of a fully or semi-automatic spray system. The fully automatic system uses a GPS receiver to compare actual geographic data against a predetermined flow plan for automatically making adjustments to flow rate in order to accommodate both speed changes and varying crop needs. The semi-automatic system uses a manually controlled flow rate but utilizes the self-adjusting capabilities of the spray nozzle.
    Type: Grant
    Filed: September 12, 2003
    Date of Patent: October 24, 2006
    Inventor: Quy Duc Bui
  • Publication number: 20040069875
    Abstract: A flexible, self-adjusting flow nozzle is provided, optimally configured for agricultural uses. The nozzle flexes automatically in response to changes in fluid pressure, thereby maintaining an optimal droplet size and spray area for a variety of flow rates. The self-adjusting characteristic of the nozzle allows for the creation of a fully or semi-automatic spray system. The fully automatic system uses a GPS receiver to compare actual geographic data against a predetermined flow plan for automatically making adjustments to flow rate in order to accommodate both speed changes and varying crop needs. The semiautomatic system uses a manually controlled flow rate but utilizes the self-adjusting capabilities of the spray nozzle.
    Type: Application
    Filed: September 12, 2003
    Publication date: April 15, 2004
    Inventor: Quy Duc Bui
  • Patent number: 6036116
    Abstract: A spray nozzle assembly is disclosed which includes a nozzle body having opposed inlet and outlet ends and an elongated passage extending therebetween. A fluid inlet passage communicates with the elongated passage through a side wall of the nozzle body. A member is disposed within the elongated passage and has a neck portion, a head portion, and an air passage extending therethrough. An annular chamber is defined by the elongated passage and the neck portion. The head portion cooperates with a shoulder defined within the elongated passage and has an outflow slot intersecting the air passage. Fluid is fed through the fluid inlet passage into the annular chamber, is metered into the outflow slot, and therein mixed with air emanating from the air passage.
    Type: Grant
    Filed: October 2, 1998
    Date of Patent: March 14, 2000
    Assignee: Coltec Industries Inc
    Inventor: Quy Duc Bui
  • Patent number: 5908161
    Abstract: The present invention relates to an apparatus for variable flow control for precision applications, such as agrochemical applications. The invention is directed towards a flow control device comprising a metering rod moveably mounted within a housing. The position of the metering rod is controllable so as to control the flow rate, flow angle and/or droplet size of fluid passing through the flow control device of the present invention.
    Type: Grant
    Filed: November 18, 1997
    Date of Patent: June 1, 1999
    Assignee: The University of Tennessee Research Corporation
    Inventors: Alvin R. Womac, Quy Duc Bui