Simplified airless dispensing pump for liquid product
US7624897B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Dec 6, 2006 |
| Grant date | Dec 1, 2009 |
| Priority date | — |
| Expiry date | Dec 16, 2027 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB05B11/1035
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
An airless dispensing pump for liquid products including a push button with a spray nozzle which communicates with a network of channels that is provided locally on the wall of an internal truncated-cone-shaped bore, and a housing. An upper part of the housing includes a dosing cell having an elastically-deformable wall, which is equipped with an intake valve and topped with a rigid collar for fixing same inside the bore of the aforementioned button. Moreover, the outer periphery of the collar has an inclined face which defines a swirl chamber opposite the above-mentioned network, while the inner periphery thereof is quipped with a passage to the chamber.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.