Dispenser for discharging a fluid medium
AssigneeIng. Erich Pfeiffer GmbH
InventorsLothar Graf, Karl-Heinz Fuchs
Life of this patent
Estimating the term…
Abstract
A dispenser is disclosed which is made up of two telescoping sections. One section holds at least one volume of a substance to be discharged. Telescoping motion of the sections compresses the substance to be discharged to force it through a passage in the section not holding the substance volume to be discharged therefrom. Motion between the section is limited to ensure precise metering of a charge to be dispersed.
Claims14
A unit-dose dispenser for manual discharge of a single dose of a flowable substance in the form of a spray, comprising a casing which has a nozzle and at least one shoulder on a side of this nozzle, the nozzle having a piston member extending inwardly from an outlet opening, the piston member having at least one discharge channel, a container of the substance to be discharged being operatively positioned with respect to the piston member, and a seal being arranged across the container to seal in all the substance to be discharged, the piston member having a piercing member which extends towards the seal, whereby on pressing the container onto the piston member the seal is pierced to allow the contents of the container to be expelled along the discharge channel and out through the outlet opening in the form of the spray.
Dependencies are inferred from the claim text.