Quantcast

Method for dispensing viscous liquids from deformable flexible tubes

Imported: 24 Feb '17 | Published: 06 Jan '04

Edward A. Fox

USPTO - Utility Patents

Abstract

Disclosed herein is a method for dispensing neat and measured quantities of the viscous liquid contents of deformable flexible tubes. The disclosed method entails dispensing a small quantity of the contents until a depleted portion near the crimped end of the tube is created, and then folding the depleted portion toward the open end of the tube and securing the fold with an elastic band stretched to encircle and fit snugly around the folded portion. Dispensing, folding and securing are continued until the entire tube is secured in folds and the tube is nearly devoid of contents.

Description

BRIEF DESCRIPTION OF THE DRAWING

FIG. 1 is a side view of a full tube with band.

FIG. 2 is a side view, first fold with the band in cross-section.

FIG. 3 is a side view, multiple folds with the band in cross-section.

FIG. 4 is a side view, maximum folds with the band in cross-section.

FIG. 5 is a side view, empty tube unfolded and band removed and in cross-section.

FIG. 6 is a top plan view of empty tube, folds defined; band in perspective and in phantom stretchable to fit any size tube.

FIG. 7 is a top plan view of smaller-sized full tube; band in perspective and in phantom stretched modestly to fit smaller tube.

Claims

1. A method of dispensing viscous liquid contents from a flexible tube having an open end and a crimped end, said method comprising: dispensing a small amount of the contents of said tube to create a depleted portion of said tube; applying finger pressure to the crimped end of said tube to urge contents from said crimped end to the depleted portion of said tube causing said crimped end to become the depleted portion of said tube; folding the depleted crimped end of said tube upon an undepleted portion of the tube to create a folded portion of said tube and securing said folded portion with an elastic band, separate and distinct from said tube, stretched to encompass said folded portion; and continuing to dispense the contents of said tube by applying finger pressure on said folded portion, removing the elastic band from the folded portion, folding the folded portion upon the newly depleted portion and securing the newly folded portion by reencircling with said elastic band and repeating this sequence until the contents of said tube have been dispensed.

2. A method according to claim 1 wherein the viscous liquid is toothpaste.

3. A method according to claim 1 wherein the elastic band is a rubber band.

4. A method according to claim 1 wherein the flexible tube is plastic.