Sterile system for dispensing a product contained in a...

Details Sterile system for dispensing a product contained in a... Sterile system for dispensing a product contained in a...

2005-12-13

2005-12-13

Bomberg, Kenneth (Department: 3754)

Dispensing

Collapsible wall-type container

C222S212000, C222S493000

Reexamination Certificate

active

06974053

ABSTRACT:
The invention concerns a dispensing and closure system arranged at the top of a container, in particular a soft tube comprising a liquid or pasty product, which is delivered by pressing on the tube. The invention is characterized in that it consists of a valve comprising two concentric elements, one of which forms a mobile cylindrical delivery valve and the other forms a cylindrical body exiting from a plate linked to the tube. The two elements defined between them an annular gap through which the product passes. When a manual pressure is exerted on the tube, it causes the product to act directly on the delivery valve causing the latter to open, countering an elastic return member, so as to allow the product to escape from the tube, when the pressure is exerted thereon and to automatically close the delivery valve when the pressure is released, preventing the possible return of the product already dispensed from returning inside the tube.

REFERENCES:
patent: 1911616 (1933-05-01), Gruber
patent: 1928895 (1933-10-01), Jensen
patent: 1948070 (1934-02-01), Hasse et al.
patent: 1971371 (1934-08-01), Donnelly
patent: 2628004 (1953-02-01), Schlicksupp
patent: 2711271 (1955-06-01), Schlicksupp
patent: 3076583 (1963-02-01), Eberspacher
patent: 3134517 (1964-05-01), Seybold
patent: 4141474 (1979-02-01), Nilson
patent: 5692651 (1997-12-01), Fuchs
patent: 5918854 (1999-07-01), Barrash et al.

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