Ing. Erich Pfeiffer Gmbh

Rene Bommer

Michael Helmlinger

Joachim Koerner

Holger Schuerle

Stefan Kafer

Michael Stifel

A microdosing device with a dosing chamber for the at least temporary reception of a liquid quantity, and with which is associated at least one discharge opening is provided. A vibrating unit in operative connection with at least one boundary surface of the dosing chamber is provided in order to vibrate the same for a discharge process, and with a delivery function unit connected to the vibrating unit for activating the latter during a delivery time period. A drying function unit is additionally provided and can be activated in time-separated manner with respect to the delivery function unit in order to free the dosing chamber from liquid residues.

Microdosing device

A dispenser for handling media includes a base unit, a discharge actuator, a medium outlet, and a medium reservoir. The discharge actuator actuates the discharge of the medium, and the discharge actuator is convertable over an actuating stroke into varying actuating positions. The actuating positions include an initial rest position and an actuated end position. The medium outlet is for expelling the medium. The medium reservoir defines a measured content of medium to be discharged upon a single actuating stroke, and the medium reservoir includes an oblong hollow needle member for caching the medium to be discharged out of the medium outlet.

Dispenser for media having measured reservoir

A pump (2) is secured to a reservoir vessel (3) with a seal interposed. The seal contains a filter unit (20) to enable filtered outside air to be replenished in the reservoir chamber (35) in the course of it being emptied. As a result of this the air does not need to flow through the interior of the pump (2). In addition, the filter (21) does not need to be selected according to requirements until pump and reservoir are assembled. Furthermore, assembly is simplified and no separate mount for the filter (21) is needed.

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Radolfzell, Germany

Rene Bommer