US 5,348,188 A · Micro-dosing device for powdery and granulate substances

Abstract

The proposed micro-dosing device is suitable for finely dosing powdery and granulate substances in quantities lying in the gram, milligram or microgram range. The dosing element per se consists of a nipple (1) comparable to those found on baby bottles. The material outlet (2) is formed by a slit-shaped opening located at the end of the tip (5) of the dosing nipple (1). Varying the lateral pressure applied to the tip (5) causes the material outlet (2) to be opened to various degrees. An activator needle (6) is provided for activating the substance filled in the dosing nipple (1); the needle is stuck into the wall of the dosing nipple (1) at a small distance above the material outlet (2); the tip of the needle projects through the opening of the material outlet (2) below. If large quantities are to be micro-dosed, the dosing nipple (1) can be mounted to a stock bottle (11) via a detachable connector.

Claims10

Dependent claims

A micro-dosing device for dispensing small doses of powdery and granulate substances, said micro-dosing device comprising:

a substantially nipple-shaped body consisting of a reservoir and a deformable downwardly tapering tip, formed integrally with said reservoir and having a bottom and a dispensing slit-shaped opening extending substantially horizontally in said bottom, wherein said slit-shaped opening opens upon application of lateral pressure to a periphery of said tip in a direction substantially parallel to longitudinal sides of said slit-shaped opening to dispense a microdose of a substance under the applied pressure and closes upon the applied pressure on said tip being removed;
and
means for inducing flow of the substance upon opening of said slit-shaped opening, said inducing means comprising a needle insertable through said tip at a location above said slit-shaped opening and having an end portion extending through said slit-shaped opening outside of said tip.

Dependencies are inferred from the claim text.

Micro-dosing device for powdery and granulate substances

Life of this patent

Micro-dosing device for powdery and granulate substances

Life of this patent

Abstract

Claims10