Colgate Palmolive Company

Scott Murray Walsh

John C Crawford

Joseph Thomas Norris

Christopher Miller

Kelly Ann Smith

Steen Vesborg

Alan Patrick Hickok

Todd VanGordon

Orlando Fuquen

Joel Millon

David A Beck

Steven Johnson

James F Cush, Jr

Alan Nimmey

Anthony Kresge

Frank J Lepera

Lee Mai Wong

Randy A Kliment

Ruben Javier

Ruben Berezowsky

Patrick Callelo

Kelley Ann Smith

There is disclosed a closure comprised of a valve, a base unit and an upper unit. The base unit has a base surface with a peripheral skirt. The base surface has an aperture with a cylindrical section extending above and below the base surface. The cylindrical section has an aperture therethrough. The upper unit has an upper surface and an aperture adapted to align with the aperture of the cylindrical section of said base unit. The upper unit has a lid to cover the apertures in the base unit cylindrical section and the upper unit. A lid inner top surface has two projecting seals, one to maintain the valve closed when the lid is closed and the other to provide a seal when the lid is closed. and a latch mechanism attaches the base unit to the upper unit. A preferred latch mechanism comprises a projection and an interfitting recess, one being on the base section and the other on the upper section. The lid top surface preferably has an essential horizontal top surface. In a preferred embodiment the valve is a polymeric valve located in the aperture between the base unit and the upper unit and held in place by contact with both the base unit and the upper unit. The rheology of the product in the container and the characteristics of the valve are coordinated so that the product will be fully contained by the valve regardless of the orientation of the container, including being inverted.

Closure

The dispensing of substances from multi-chamber containers, such as tubes, can be controlled by the placement of a flow modifying unit in the dispensing nozzle of the container. The dispensing nozzle will have a plurality of channels, usually one for each chamber. The flow controlling unit is a constriction at an intermediate point, a point between the channel inlet and exit, in at least one of the channels. This constriction is sized to adjust flow so that the viscous substance from each chamber is dispensed at a set flow rate and in a set ratio, one to the other. The constriction is formed at the time that the nozzle is formed. In the compression molding process a mold pin is used, the mold pin meeting a mold base at an intermediate point in at least one channel. The mold pin and or mold base has a recess that is the size and shape of the flow modifying constriction. Plastic is injected into the mold and the flow modifying unit is formed at the same time as the nozzle.

Controlling flow from multi-chamber containers

Heart shaped tablet

Soap bar

A dual chamber sachet with a dispensing outlet can be made in a form/fill sequence by attaching the dispensing outlet to the film that is to form the chamber divider wall followed by attaching films that are to form the outer walls of the sachet to the dispensing outlet. The upper and side lateral edges of the sachet then are sealed together to produce a sachet with an open bottom end. The sachet can be produced from three film sources, two film sources with the outer walls being formed from a single film, or from a single film formed into a W-shape. The sachet preferably is filled through the open bottom end and the bottom end then sealed. However the sachet can be top filled through the nozzle. The sachets then are severed one from the other by cutting along a lateral seal and packed into a carton, or preformatted along a lateral seal and cut to produce a string of a set number of sachets. The sachets can have a single use dispensing outlet or a reclosable dispensing outlet. Larger sachets will have a reclosable dispensing outlet.

Method of making dual chamber sachet

Container

A closure for a multi-chamber container can have a flow director device that will assist in the dispensing of the products from the multi-chamber tube in a number of product streams that are greater than the number of chambers in the container. This provides versatility in the dispensing of products from such tubes. By the use of several different closures with different flow patterns different products can be delivered in a number of patterns form the same container.

Multichannel dispensing closure

Dispenser

Growing community of inventors

Flanders, NJ, United States of America

Scott Murray Walsh