Collapsible tube with a distributor head without air return
US7222751B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 14, 2002 |
| Grant date | May 29, 2007 |
| Priority date | — |
| Expiry date | Dec 5, 2023 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65D81/28
- WIPO fieldHandling
- WIPO sectorMechanical engineering
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.