Multiple component dispensing cartridge and method with side-by-side fluid chambers
US8544683B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 29, 2010 |
| Grant date | Oct 1, 2013 |
| Priority date | — |
| Expiry date | Jul 4, 2031 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB05C17/0123
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A fluid cartridge for storing and dispensing first and second fluids includes a first tubular cartridge wall and a second tubular cartridge wall in side-by-side relation. First and second pistons are coupled for movement by a coupling portion and are respectively disposed within the first and second tubular cartridge walls to define first and second side-by-side fluid chambers. A fixed wall is disposed between the first and second fluid chambers. A force is applied to the first piston along the first central longitudinal axis of the first tubular cartridge wall and moves both the first and second pistons along and within the first and second fluid chambers as the coupling portion between the first and second pistons travels within an opening in the fixed wall. The opening may be a preformed slot or may be formed by a cutting element attached with the pistons as the pistons move during the dispensing operation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.