Portable sprayer with safety cover
US4509664A · kind A · utility
2Cited by
4References
4Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 23, 1983 |
| Grant date | Apr 9, 1985 |
| Priority date | — |
| Expiry date | Mar 23, 2003 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA62C11/00
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
This invention pertains to a sprayer for insecticides. The sprayer consists of a tank and a cover assembly which includes an air pump for pressurizing the tank. The tank has a funnel-shaped neck which is engaged by the cover to form an air-tight enclosure. In order to insure that the cover does not separate suddenly when it is opened while the tank is still pressurized, the neck is provided with extrusions which do not permit the closure to separate from the tank as air is bleeding out of the tank.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.