Watering nipple
US5154138A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Aug 5, 1991 |
| Grant date | Oct 13, 1992 |
| Priority date | — |
| Expiry date | Aug 5, 2011 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA01K39/0213
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
The watering nipple, constructed according to the teachings of the present invention, comprises a body having a water delivering channel therein. The water delivering channel has an inlet and an outlet, and defines a path of water flow. A pin having a head and a stem is disposed within the water delivering channel, with the stem protruding beyond the outlet. The pin is capable of movement within the water delivering channel so as to open and close the outlet. An enlarged body, having an extension and a knob, is connected to the stem. The knob has a horizontal surface which confronts the valve body thereby increasing the surface area capable of retaining water. A pin and a movable element are included within the water delivering channel in some constructions. The pin is able to close the inlet under the influence of the movable element.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.