Under-the-rim dispensing unit
US4777670A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jan 13, 1988 |
| Grant date | Oct 18, 1988 |
| Priority date | — |
| Expiry date | Jan 13, 2008 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01F21/22
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A dispenser for dispensing a dissolvable product into a toilet bowl. The structure of the dispenser properly meters and times the flow of water therethrough to increase operational efficiency. The dispenser includes a substantially sealed container enclosing the product and having an entrance hole and an exit hole. Water flow interruptions are positioned to interrupt the flow of flush water and to channel the water to the entrance. A sufficient change of water is guaranteed by the deflectors while excess water is limited by the size of the entrance. A deflector is positioned to deflect water away from the product, and instead to cause the water to rise gently in the containers. The size of the exit hole ensures that water remains in the container after flushing has stopped, so that the dissolved product is efficiently infused into the water standing in the toilet bowl as the water level in the container recedes.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.