Applicator systems
US6505986B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | May 19, 2000 |
| Grant date | Jan 14, 2003 |
| Priority date | — |
| Expiry date | May 19, 2020 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65D2231/004
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
An applicator system, for use in delivering a flowable composition, comprising; (a) container including an inner collapsible layer distinct from an outer deformable layer, the inner collapsible layer defining a reservoir, and the outer deformable layer being separated from the inner collapsible layer by a buffer zone; (b) a dispenser including a first passageway distinct from a second passageway, the first passageway being in communication with the buffer zone and the second passageway being in communication with the reservoir; and (c) valve means operable to control entry of air into the buffer zone through the first passageway and exit of flowable composition from the reservoir through the second passageway; wherein the valve means is of unitary construction.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.