Method and device for dispensing a liquid
AssigneeDe Grood Innovations B.V.
InventorsJohannes Petrus Wilhelmus de Grood, Pascal Johannes de Grood
Life of this patent
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Abstract
Device and method for dispensing a liquid, comprising a liquid container; a plurality of dispensing openings connecting to the liquid container for controlled dispensing of the liquid to a substrate, and at least one membrane which connects onto the dispensing openings and which is displaceable between a first sealing position, in which the dispensing openings are covered by the membrane, and a second opened position in which the dispensing openings are left clear by the membrane, which device is also provided with a medium-filled control system which connects to the membrane such that the membrane is displaceable between the first and the second position by means of pressure variation on the medium.
Claims20
A device for dispensing a liquid food material, comprising:
- a liquid container;
- a plurality of dispensing openings connected to the liquid container through a transfer channel for controlled dispensing of the liquid food material from each of the plurality of dispensing openings to a substrate;
- at least one membrane which connects onto the dispensing openings and which is displaceable between:
- a first sealing position, in which the dispensing openings are covered by the membrane;
- a second opened position in which the dispensing openings are left clear by the membrane;
- and
- a medium-filled control system which connects to the membrane such that the membrane is displaceable between the first and the second position by means of pressure variation on the medium, characterized by means for placing the liquid food material in the liquid container under pressure in order to dispense liquid through the transfer channel, past the open membrane in the second opened position to the dispensing openings, wherein the throughput area of the transfer channel is smaller than a throughput area of the liquid container for dividing the liquid food material and the pressure towards the various dispensing openings.
A method for dispensing a liquid food material through a plurality of dispensing openings, comprising the processing steps of:
- A) introducing a liquid for dispensing into a liquid container;
- B) applying a pressure to the liquid food material which is higher than the ambient pressure;
- C) carrying the liquid food material to the dispensing openings via a transfer channel, wherein the transfer channel is in fluid communication with the liquid container;
- D) opening and closing the openings in controlled manner per dispensing opening by means of displacing a membrane,
- wherein the membrane connects onto the dispensing openings and is displaceable between:
- a first sealing position in which the dispensing openings are covered by the membrane;
- a second opened position in which the dispensing openings are left clear by the membrane and
- E) dispensing the liquid food material through the transfer channel, past the open membrane in the second opened position to the dispensing openings, wherein the throughput area of the transfer channel is smaller than a throughput area of the liquid container for dividing the liquid food material and the pressure towards the various dispensing openings,
- characterized in that the membrane is displaced by means of varying a medium pressure.
Dependencies are inferred from the claim text.