Microfabricated electrospray device
AssigneesAdvion BioSciences, Inc., Kionix, Inc.
InventorsJames E. Moon, Timothy J. Davis, Gregory J. Galvin, Gary A. Schultz, Thomas N. Corso, Stephen Lowes
Life of this patent
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Abstract
An electrospray device is disclosed. The electrospray device comprises a substrate defining a channel between an entrance orifice on an injection surface and an exit orifice on an ejection surface, a nozzle defined by a portion recessed from the ejection surface surrounding the exit orifice, and an electrode for application of an electric potential to the substrate to optimize and generate an electrospray; and, optionally, additional electrode(s) to further modify the electrospray.
Claims23
An electrospray device, comprising:
- a. a substrate, said substrate having an injection surface and an ejection surface;
- b. a channel communicating from the injection surface to the ejection surface;
- c. an entrance orifice located at the injection surface end of the channel;
- d. an ejection orifice located at the ejection surface end of the channel;
- e. a recessed region formed in the substrate around the ejection orifice and the ejection end of the channel so as to form a nozzle;
- and
- f. a grid plane region around the recessed region, said grid plan region being physically isolated from the nozzle by the recessed region.
An electrospray device, comprising:
- a. a substrate, said substrate having an injection surface and an ejection surface;
- b. a plurality of channels communicating from the injection surface to the ejection surface;
- c. an entrance orifice located at the injection surface end of each channel;
- d. an ejection orifice located at the ejection surface end of each channel;
- e. a recessed region formed in the substrate around the ejection orifice and the ejection end of each channel so as to form a nozzle;
- and
- f. a grid plane region associated with each recessed region, said grid plan region being physically and electrically isolated from each nozzle by the respective recessed region.
Dependencies are inferred from the claim text.