Foaming device for high solids content foamable liquids
US4027789A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Sep 10, 1975 |
| Grant date | Jun 7, 1977 |
| Priority date | — |
| Expiry date | Sep 10, 1995 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB05B11/043
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A foaming device for generating and dispensing foams formed by mixing air or other gas with a foamable liquid having a high solids content under pressures of a magnitude on the order of pressures developed by manual collapse of an elastomeric bottle. The device includes a continuous passageway extending from a point of submergence in liquid to be foamed through the gas to be mixed with the liquid to a discharge opening, that portion of the passageway located in the gas being formed of a porous tube by which gas under pressure will be introduced to liquid passing upwardly through the passageway under the same pressure and mixed therewith. A flow restriction in the form of a static mixer is located in the passageway at a point to be coextensive with or elevated above the level of the porous tube.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.