Dosing device

US10782172B2 · kind B2 · utility

Assignee

• OBRIST CLOSURES SWITZERLAND GMBH · DE

Inventors

• Patrick Schmidt · Basehor, US
• Peter Stoelben · Zell (Mosel), DE

Key dates

• Filing date: Jan 19, 2017
• Grant date: Sep 22, 2020
• Expiry date: Jan 19, 2037

Classification

• Technology area (CPC G): Physics
• CPC primary: G01F11/28
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

A dosing device is provided and comprises: a dosing chamber having an inlet through which product can enter from a container; an outlet into which product flows from the chamber and through which product flows out of the device; a siphon member located around the outlet; a vent opening in the chamber; a container-side vent which opens into the container, in which: the siphon member terminates at a level L1 with respect to the outlet; the outlet opens into the chamber at a level L2; such that in use product flows into the chamber through the inlet/s and fills the chamber until L2 is reached and then product is siphoned from the chamber into the outlet by the siphon member, the siphoning continuing until product in the chamber reaches L1, whereupon: air entering the vent opening interrupts the siphoning; and air vents into the container through the container-side vent such that thereafter recharging of the chamber repeats, in which a chicane is provided for preventing leakage of product through the vent opening.