Patents by Inventor Donald W. Weinstein

Donald W. Weinstein 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).

  • ELECTROSTATIC SPRAY DRYING NOZZLE ASSEMBLY
    Publication number: 20220118467
    Abstract: An electrostatic sprayer operable at high flow rates and low pressures particularly suitable for spray drying. The sprayer includes an elongated body having a downstream spray nozzle assembly through which electrically charged liquid is directed via a central feed tube within the nozzle body and atomizing air is supplied via an annular passage about the liquid feed tube. In one embodiment, the nozzle assembly is an external mix cluster head spray nozzle assembly having a plurality of circumferentially spaced metallic spray tips. In another embodiment, the spray nozzle is an internal mix nozzle assembly having a spray tip with an internal mixing chamber for atomizing liquid prior to discharge.
    Type: Application
    Filed: November 27, 2019
    Publication date: April 21, 2022
    Inventors: Thomas E. Ackerman, Lyndon J. Wee Sit, Donald W. Weinstein, Dave C. Huffman
  • Electrostatic spray drying nozzle assembly
    Patent number: 11285498
    Abstract: An electrostatic sprayer operable at high flow rates and low pressures particularly suitable for spray drying. The sprayer includes an elongated body having a downstream spray nozzle assembly through which electrically charged liquid is directed via a central feed tube within the nozzle body and atomizing air is supplied via an annular passage about the liquid feed tube. In one embodiment, the nozzle assembly is an external mix cluster head spray nozzle assembly having a plurality of circumferentially spaced metallic spray tips. In another embodiment, the spray nozzle is an internal mix nozzle assembly having a spray tip with an internal mixing chamber for atomizing liquid prior to discharge.
    Type: Grant
    Filed: November 27, 2019
    Date of Patent: March 29, 2022
    Assignee: Spraying Systems Co.
    Inventors: Thomas E. Ackerman, Lyndon John A. Wee Sit, Donald W. Weinstein, Dave C. Huffman
  • ELECTROSTATIC SPRAY DRYING NOZZLE ASSEMBLY
    Publication number: 20200171517
    Abstract: An electrostatic sprayer operable at high flow rates and low pressures particularly suitable for spray drying. The sprayer includes an elongated body having a downstream spray nozzle assembly through which electrically charged liquid is directed via a central feed tube within the nozzle body and atomizing air is supplied via an annular passage about the liquid feed tube. In one embodiment, the nozzle assembly is an external mix cluster head spray nozzle assembly having a plurality of circumferentially spaced metallic spray tips. In another embodiment, the spray nozzle is an internal mix nozzle assembly having a spray tip with an internal mixing chamber for atomizing liquid prior to discharge.
    Type: Application
    Filed: November 27, 2019
    Publication date: June 4, 2020
    Inventors: Thomas E. Ackerman, Lyndon John A. Wee Sit, Donald W. Weinstein, Dave C. Huffman