Patent Number: 6,253,968

Title: Method and device for dosing powdered materials

Abstract: A method is provided for dosing powdered material from a supply container having a vertically suspending discharge tube of an elastically deformable material, by squeezing said discharge tube at locations, which periodically move along a part of the discharge tube length. In this method, the squeezing of the discharge tube is effected in a similar way as the flexible tube of a peristaltic pump of the type, with which the tube engages a support wall on one side and with which a peristaltic mechanism is provided on the opposite side for squeezing the tube according to a travelling wave, the length of which does not exceed one single wave length.

Inventors: Van Dijk; Jakob (Maarssen, NL), Klarenbeek; Ruud (Maarssen, NL), Los; Leendert (Maarssen, NL), Pobuda; Miro (Maarssen, NL), Evers; Lucas Alphonsus (Nieuwegein, NL), Muller; Ronald (Nieuwegein, NL)

Assignee: Diversey Lever Inc.

International Classification: G01F 11/08 (20060101); G01F 11/02 (20060101); G01F 011/20 ()

Expiration Date: 07/03/2018