Dual chamber dispenser
US6161729A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Mar 12, 1999 |
| Grant date | Dec 19, 2000 |
| Priority date | — |
| Expiry date | Mar 12, 2019 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65D47/2031
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A dual-chambered dispenser is provided including a pair of elongated hollow tubes containing separate flowable material streams, a manifold for directing the flow through separate chambers, a cap fitting over dispensing openings of the manifold and a metering valve located within the manifold downstream from the dispensing openings. The valve is present to adjust differences in flow rates between the two material streams. In a preferred embodiment, the tubes are juxtaposed along their respective flat outer walls which may include a series of ribs/depressions allowing for coupling of the tubes and strengthening the flat walls against collapse relative to other wall areas of the tubes. Advantageously the valve is a duckbill type and the tubes taper in a pear shape, the broader portion being near the open end of the tubes.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.