Watering device
US6684563B2 · kind B2 · utility
Inventor
Key dates
| Filing date | Sep 26, 2002 |
| Grant date | Feb 3, 2004 |
| Priority date | — |
| Expiry date | Sep 26, 2022 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA01G27/006
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A watering device comprises a watering container, a cap, a control knob, and an air tube. The cap is fastened with the water container such that an air inlet of the cap and a channel of a tapered projection of the cap are in communication with the hollow interior of the water container. The tapered projection of the cap is provided with at least one water discharging hole in communication with the air inlet of the cap. The control knob is rotatably fastened with an outer end of the air inlet such that the control knob can be turned to block the air inlet. The air tube is fastened at one end with an inner end of the air inlet such that other end of the air tube is extended into the hollow interior of the water container.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.