Internal toothpaste tube dispensing device

Details Internal toothpaste tube dispensing device Internal toothpaste tube dispensing device

2011-06-28

2011-06-28

Shaver, Kevin P (Department: 3754)

Dispensing

Collapsible wall-type container

Nonmetallic

C222S391000, C222S206000, C222S386000

Reexamination Certificate

active

07967169

ABSTRACT:
An improved device for dispensing toothpaste from a flexible tube using only manual pressure on the flexible tube. The device is formed to fit precisely the inner shape of the toothpaste tube and slides forward as the tube is manually squeezed from the outside. As the device moves toward the tube opening the toothpaste is expelled. Friction strips attached to the device on two sides come into contact with friction strips on the two interior sides of the toothpaste tube. As the device is propelled forward by manual pressure it is prevented from moving rearward toward the closed end of the toothpaste tube because of the friction strips. Thus as the tube is depressed and the toothpaste is expelled the flattened portion of the tube remains flattened and the tube is ready for the next use.

REFERENCES:
patent: 2361647 (1944-10-01), Nyden
patent: 3201003 (1965-08-01), Wark et al.
patent: 3297207 (1967-01-01), Ballin
patent: 3493147 (1970-02-01), Ballin
patent: 3521795 (1970-07-01), Langhjelm et al.
patent: 5137177 (1992-08-01), Willis
patent: 5169030 (1992-12-01), Lewin
patent: 5622288 (1997-04-01), Boring
patent: 2006/0289568 (2006-12-01), Schang

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