Water shut-off structure of a drinking device for a pet
US6553937B1 · kind B1 · utility
Inventor
Key dates
| Filing date | Mar 12, 2002 |
| Grant date | Apr 29, 2003 |
| Priority date | — |
| Expiry date | Mar 12, 2022 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA01K7/06
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A water shut-off structure of the drinking device for a pet is formed of a water outlet, a spout tube, a washer, and a steel ball. The water outlet is fastened at the inner end to a water container of the drinking device. The spout tube is fastened at the inner end to the outer end of the water outlet and is provided at the outer end with a discharge port. The spout tube is provided in the inner wall of the outer end with a stop ring. The washer is conical in form and is disposed in the spout tube such that the washer is confined by the outer end of the water outlet and the stop ring of the spout tube. The steel ball is movably received in the conical washer to allow or prevent the passage of water.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.