Diversey Lever, Inc.

Unilever Patent Holdings B.v.

Leendert Los

Guido Clemens Van Den Brom

Ronald M&uuml;ller

Miro Pobuda

Ruud Klarenbeek

Jakob Van Dijk

Lucas Alphonsus Evers

Bennie Douma

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.

Method and device for dosing powdered materials

A method of delivering a liquid detergent product which may be caustic, is described. In particular, a predetermined volume of water is dosed into a container using a flow meter, a valve means, and, optionally, a water supply pump means. A pump means is activated to deliver the liquid detergent product into the container until it is completely filled as controlled by a level sensor located in the container. The contents of the container are then delivered. A device for carrying out the method is also described.

Process and device for dosing detergent compositions

Rinse aid compositions based on alkyl polyglycoside surfactants attack plastics, in particular polycarbonate, to a much lesser degree than rinse aid compositions based on other types of nonionic surfactants. It is preferred that the compositions also comprise an anti-foam agent, preferably a ketone having more than 25 carbon atoms.

Rinse aid compositions containing alkyl polycycloside and a ketone

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Houten, Netherlands

Leendert Los