Dosing device

• US 20070000488A1
• Filed: 02/04/2005
• Published: 01/04/2007
• Est. Priority Date: 02/05/2004
• Status: Abandoned Application

• Current Assignee: Ing. Erich Pfeiffer GmbH (AptarGroup Incorporated)
• Original Assignee: Ing. Erich Pfeiffer GmbH (AptarGroup Incorporated)
• Inventors: Helmlinger, Michael, Koerner, Joachim, Schuerle, Holger
• Application Number:
  US11/051,963
• Publication Number:
  US 20070000488A1
• Time in Patent Office: Days
• US Class Current: 128/203.150
• CPC Class Codes: A61M 11/005 using ultrasonics spraying or atomising liquids using ultrasonic vibrations in general B05B17/06
• CPC Class Codes: A61M 11/007 Syringe-type or piston-type sprayers or atomisers
• CPC Class Codes: A61M 15/0085 using ultrasonics spraying or atomising liquids using ultrasonic vibrations in general B05B17/06
• CPC Class Codes: A61M 2202/064 Powder
• CPC Class Codes: A61M 2205/3306 Optical measuring means
• CPC Class Codes: A61M 2205/3379 Masses, volumes, levels of fluids in reservoirs, flow rates
• CPC Class Codes: B05B 12/082 responsive to a condition of the discharged jet or spray, e.g. to jet shape, spray pattern or droplet size
• CPC Class Codes: B05B 17/0638 spray being produced by discharging the liquid or other fluent material through a plate comprising a plurality of orifices
• CPC Class Codes: G05D 7/0635 by action on throttling means G05D7/0688, G05D7/0694 take precedence

Abstract

1. Dosing device. 2.1 A dosing device for a medium, with a medium reservoir, with at least one medium channel for delivering the medium, and with at least one dispensing opening for dispensing the medium, is known. 2.2 According to the invention, the medium channel is assigned a control unit which comprises a measurement means for detecting an actual value of a stream of medium, a memory for desired values of the stream of medium, a comparator for comparison between actual values and desired values, and an actuating means for acting on the stream of medium as a function of evaluations performed by the comparator. 2.3 Use for dosing of medium.

Claims

1. Dosing device (1) for a medium, with a medium reservoir (2), with at least one medium channel (3) for delivering the medium (23), and with at least one dispensing opening (4) for dispensing the medium (23), characterized in that the medium channel (3) is assigned a control unit (5) which comprises a measurement means (6) for detecting an actual value of a stream of medium, a memory (7) for desired values of the stream of medium, a comparator (8) for comparison between actual values and desired values, and an actuating means (9) for acting on the stream of medium as a function of evaluations performed by the comparator (8).

2. Dosing device according to claim 1, characterized in that a dosing chamber (10) provided on the medium channel (3) at least temporarily receives a quantity of liquid and is assigned the at least one dispensing opening (4), and the dosing chamber (10) is provided with a vibration unit (11) which is operatively connected at least to one boundary surface (12) of the dosing chamber (10) in order to cause this boundary surface (12) to oscillate for the purpose of a dispensing operation, and an output function unit (13) connected to the vibration unit (11) is provided for activating the vibration unit during an output period.

3. Dosing device according to claim 2, characterized in that the output function unit (13) is coupled to the control unit (5) for controlled output of medium.

4. Dosing device according to claim 1, characterized in that the measurement means (6) is provided in a storage chamber (14) assigned to the dosing chamber (10).

5. Dosing device according to claim 1, characterized in that the measurement means (6), seen in the direction of flow of the medium, is arranged downstream from the dispensing opening (4) on the dosing chamber (10).

6. Dosing device according to claim 1, characterized in that the measurement means (6) has an optical and/or capacitive and/or inductive sensor arrangement (15).

7. Dosing device according to claim 1, characterized in that the medium reservoir (2) is pressurized.

8. Dosing device according to claim 1, characterized in that a gas separator (17) is provided in the medium channel (3) and/or in the medium reservoir (2).

9. Dosing device according to claim 8, characterized in that a gas outlet (18), designed in particular as a hydrophobic membrane filter, is provided on the medium reservoir (2) and/or on the gas separator (17).