Collapsible tube with a distributor head without air return

Details Collapsible tube with a distributor head without air return Collapsible tube with a distributor head without air return

2007-05-29

2007-05-29

Ngo, Lien M. (Department: 3754)

Dispensing

Collapsible wall-type container

C222S494000

Reexamination Certificate

active

10478201

ABSTRACT:
Collapsible tube head (100, 200, 300, 400) comprising a neck (103, 203, 303, 403) which is fitted, with a port (180, 280, 380, 480) and a shoulder (102, 202, 302, 402). The aforementioned head is fitted with a valve (110, 210, 310, 410) which is inserted in the neck of the said collapsible tube, the said valve comprising a sealing means (112, 212, 312, 412) which is connected to a ring support (115, 215, 315, 415) having an opening (122, 222, 322, 422), the said sealing means being maintained in the closed position of the said opening when the tube is not compressed, and being maintained in the open position when the tube is compressed. The inner surface of the tube is provided with a bore (105, 205, 305, 405) which is disposed close to the base of the said neck. The ring support is fixed to the bore by means of bonding, soldering or force fitting, and the said bore and ring support are preferably provided with complementary connection means, in particular a groove and rice grains.

REFERENCES:
patent: 3165242 (1965-01-01), Jackson
patent: 4635826 (1987-01-01), Hatakeyama et al.
patent: 4962870 (1990-10-01), Schneider
patent: 5829645 (1998-11-01), Hennemann
patent: 1173298 (1964-02-01), None
patent: 2732315 (1996-04-01), None

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