Self-closing fluid dispensing valves
US4421297A · kind A · utility
18Cited by
3References
3Claims
0Family size
Inventors
Key dates
| Filing date | Nov 2, 1981 |
| Grant date | Dec 20, 1983 |
| Priority date | — |
| Expiry date | Nov 2, 2001 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16K51/00
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
Self-closing fluid dispensing valves particularly for use with soft flexible fluid containers. The valves include a tubular outer housing having one end attached to the fluid container and an inner coaxial tubular barrel which may be rotated to align fluid dispensing holes in both housing and barrel. Tabs extending from both housing and barrel permit "two-finger" opening of the valves against spring forces that operate to automatically close the valves.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.