Foam generator, foamable pesticide, and method
US6755400B2 · kind B2 · utility
Inventor
Key dates
| Filing date | Oct 26, 2001 |
| Grant date | Jun 29, 2004 |
| Priority date | — |
| Expiry date | May 26, 2022 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S261/26
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
The airtight foamable liquid reservoir of a portable foam generator includes a pressurized air inlet and a discharge tube with one or more venturi openings. As a foamable liquid within the reservoir is discharged from the reservoir by the pressurized air through the discharge tube, pressurized air enters the discharge tube through the venturi opening(s) to create a fluid foam from the foamable liquid. For pest control, the foam generator may be utilized to foam and dispense a foamable pesticide that, preferably, includes a non-repellant, nonionic foaming agent adjuvant. The foamed pesticide may be introduced into walls and relatively inaccessible building locations as well as over the entrances of and into passages and habitats used by pests.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.