Handheld dispensers for personal use
US7984831B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 23, 2008 |
| Grant date | Jul 26, 2011 |
| Priority date | — |
| Expiry date | Oct 23, 2029 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB05B11/026
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A handheld dispenser includes a collapsible liquid container, a liquid pump, an air pump, and a mixing chamber. The liquid pump provides a collapsible liquid chamber collapsed from an expanded volume to a compressed volume to expel liquid from the collapsible liquid chamber into the mixing chamber. The air pump provides a collapsible air chamber collapsed from an expanded volume to a compressed volume to expel air from the collapsible air chamber into the mixing chamber. The liquid pump and air pump are secured to the collapsible liquid container so as to be capable of being manipulated with one hand. Air expelled into the mixing chamber mixes with liquid expelled into the mixing chamber so that a mixed product is dispensed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.