Double chamber aerosol container and manufacturing method therefor
US6092566A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 21, 1998 |
| Grant date | Jul 25, 2000 |
| Priority date | — |
| Expiry date | Dec 21, 2018 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65D83/625
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A double chamber aerosol container capable of filling contents in the container upon cutting off open air has an inner sack, whose volume is reducible according to reduction of contents, formed with temporarily engaging portions. A housing to which a valve assembly is arranged is inserted in the inner sack where the temporarily engaging portions are temporarily engaged with a ring-shaped neck portion of an outer container. After propellant is filled in a space between the inner sack 1 and the outer container during this temporarily engagement, the inner sack is inserted in the outer container to form the double chamber aerosol container.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.