The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 08, 2025
Filed:
May. 16, 2019
Medspray B.v., Enschede, NL;
Cornelis Johannes Maria Van Rijn, Amsterdam, NL;
Wietze Nijdam, Enschede, NL;
Wilhelmus Petrus Johannes De Kruijf, Enschede, NL;
Henri Joseph Van Egmond, Enschede, NL;
MEDSPRAY B.V., Enschede, NL;
Abstract
The present invention provides a spray device that generates a fluidic micro-jet spray and that allows and retains a relatively narrow droplet size distribution, of micro-jets and droplets obtained via the Rayleigh breakup mechanism, under a well-defined control of coalescence. To tint end a spray device is characterized in that a spray nozzle unit is formed by a nozzle body (), comprising a support body () with at least one cavity () spanned by a membrane layer () having a nozzle orifice throughout a thickness of said membrane layer at an area of said cavity () in fluid communication with that cavity (). The nozzle orifice may be part of a first relatively dense group of first orifices () or of a less dense second group of second nozzle orifices () in the membrane layer. A mean diameter of the nozzle orifices () located in the first group substantially differs from the mean diameter of the nozzle orifices () in the second group to obtain a uniform droplet size distribution in the spray.