Nozzle-system for a dispenser for fluids consisting of a nozzle and a nozzle-holder and/or screw cap
AssigneeBoehringer Ingelheim International GmbH
InventorsHeinrich Kladders, Herbert Wachtel
Life of this patent
Estimating the term…
Abstract
The invention relates to a nozzle system for a delivery device for liquids, which comprises a nozzle and a device which fixes the nozzle in the delivery device. The device has a liquid reservoir from which a liquid is forced through a nozzle under pressure to deliver the liquid. The nozzle is secured by a holder on the delivery device. This holder may itself be secured by a second holder, e.g. in the form of a check nut, or the check nut itself may be the holder. According to the invention at least part of the outer surface of the holding device is micro- or nanostructured.
Claims17
A nozzle for a delivery device for fluids comprising:
- an inlet side;
- an outlet side, including at least one nozzle opening;
- and
- at least two superimposed plates, at least one of the plates produced by microtechnology, so that the plates lying one on top of the other define, on one side, a fluid inlet connected to a channel system and/or a filter system which then opens into one or more fluid outlets,
- wherein an outer surface of the outlet side includes at least one of elevation and/or depression microstructures and elevation and/or depression nanostructures, which do not include the at least one nozzle opening.
A nozzle system for a device for delivering fluids, comprising:
- a nozzle having one or more nozzle openings and an outer surface at a fluid outlet side of the nozzle;
- at least two superimposed plates at least one of the plates produced by microtechnology, so that the plates lying one on top of the other define, on one side, a fluid inlet connected to a channel system and/or a filter system which then opens into one or more fluid outlets;
- and
- a nozzle holder which comprises a through-bore having a sidewall initiating at a position in communication with the one or more nozzle openings of the fluid outlet side of the nozzle, and terminating at an end face of the nozzle holder, wherein:
- at least one of the following surfaces include at least one of elevation and/or depression microstructures and elevation and/or depression nanostructures, which do not include the one or more nozzle openings:
- the outer surface of the fluid outlet side of the nozzle,
- an outer surface of the end face of the nozzle holder, or
- the side wall of the through-bore of the nozzle holder.
A nozzle system for a device for delivering fluids, comprising:
- a nozzle having one or more nozzle openings and an outer surface at a fluid outlet side of the nozzle;
- a nozzle holder which comprises a through-bore having a sidewall initiating at a position in communication with the one or more nozzle openings of the fluid outlet side of the nozzle, and terminating at an end face of the nozzle holder,
- wherein at least one of the following surfaces include at least one of elevation and/or depression microstructures and elevation and/or depression nanostructures:
- the outer surface of the fluid outlet side of the nozzle,
- an outer surface of the end face of the nozzle holder, or
- the side wall of the through-bore of the nozzle holder;
- and
- a check nut engaging the nozzle holder and having an end face and a bore including a side wall thereof, which communicates with the through-bore of the nozzle holder and widens out continuously therefrom, wherein at least one of an outer surface of the end face of the check nut and the side wall of the bore of the check nut include at least one of microstructures and nanostructures.
Dependencies are inferred from the claim text.