Title: High mass throughput particle generation using multiple nozzle spraying

Abstract

Spraying apparatus and methods that employ multiple nozzle structures for producing multiple sprays of particles, e.g., nanoparticles, for various applications, e.g., pharmaceuticals, are provided. For example, an electrospray dispensing device may include a plurality of nozzle structures, wherein each nozzle structure is separated from adjacent nozzle structures by an internozzle distance. Sprays of particles are established from the nozzle structures by creating a nonuniform electrical field between the nozzle structures and an electrode electrically isolated therefrom.

Inventors:

Pui, David Y.H.; Chen, Da-Ren

Issue Date:

Tue Jul 20 00:00:00 EDT 2004

Research Org.:

Univ. of Minnesota, Minneapolis, MN (United States)

Sponsoring Org.:

USDOE

OSTI Identifier:

1174954

Patent Number(s):

6764720

Application Number:

09/858,865

Assignee:

Regents of the University of Minnesota (Minneapolis, MN)

Patent Classifications (CPCs):

A - HUMAN NECESSITIES A61 - MEDICAL OR VETERINARY SCIENCE A61F - FILTERS IMPLANTABLE INTO BLOOD VESSELS

B - PERFORMING OPERATIONS B05 - SPRAYING OR ATOMISING IN GENERAL B05B - SPRAYING APPARATUS

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A - HUMAN NECESSITIES A61 - MEDICAL OR VETERINARY SCIENCE A61F - FILTERS IMPLANTABLE INTO BLOOD VESSELS

A61F2/86 - Stents in a form characterised by the wire-like elements

B - PERFORMING OPERATIONS B05 - SPRAYING OR ATOMISING IN GENERAL B05B - SPRAYING APPARATUS

B05B1/14 - with multiple outlet openings
B05B13/06 - specially designed for treating the inside of hollow bodies
B05B5/025 - Discharge apparatus, e.g. electrostatic spray guns
B05B5/0255 - {spraying and depositing by electrostatic forces only}
B05B5/032 - {for spraying particulate materials}
B05B5/08 - Plant for applying liquids or other fluent materials to objects
B05B5/087 - {Arrangements of electrodes, e.g. of charging, shielding, collecting electrodes
B05B7/0408 - {with arrangements for mixing two or more liquids}
B05B7/066 - {with an inner liquid outlet surrounded by at least one annular gas outlet}

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DOE Contract Number:  

FG02-98ER14909

Resource Type:

Patent

Country of Publication:

United States

Language:

English

Subject:

42 ENGINEERING