Spray dispenser
US8210399B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 25, 2008 |
| Grant date | Jul 3, 2012 |
| Priority date | — |
| Expiry date | Apr 30, 2031 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB05B11/1011
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A dispenser includes a housing having a sidewall with first and second axial ends. A container has first and second end portions with the second end portion engaged with the housing such that the container extends from the first axial end of the housing. A plunger having first and second sides is disposed in the interior cavity of the container. The interior cavity of the container and the first side of the base cooperatively define a product cavity. The interior cavity of the container and the second side of the base cooperatively define an air cavity. A valve mechanism is in engagement with the second end portion of the container. The valve mechanism includes a nozzle defining an orifice and an accumulator defining a pumping chamber. The pumping chamber is adapted to receive a portion of the product in the container. A piston is selectively slidable in the pumping chamber.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.