Device for generating and dispensing foam
US5779104A · kind A · utility
35Cited by
6References
5Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Nov 1, 1996 |
| Grant date | Jul 14, 1998 |
| Priority date | — |
| Expiry date | Nov 1, 2016 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB05B11/1097
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
The invention relates to a device for generating and metering foam, especially foamed soap. To prevent further dispensing of drips of residual foam in a foam outlet channel after the quantity required has been supplied, the device is constructed in such a way that the underpressure subsisting on the return stroke of a piston in an air chamber is effective in the foam outlet channel and sucks residual foam back.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.