Valve for a fluid dispenser
US3970225A · kind A · utility
3Cited by
3References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 20, 1974 |
| Grant date | Jul 20, 1976 |
| Priority date | — |
| Expiry date | Dec 20, 1994 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M39/284
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A dispenser pen for dispensing liquids such as adhesives has a tube 12 connecting a supply 14 of the liquid to a nozzle 15. The tube 12 passes between a cross-pin 19 and one end of a pivoted lever 18 which is normally urged by a spring 23 to squeeze the tube 12 between the lever and the cross-pin so as to close the tube to flow of the liquid. The region 17 of the tube between the lever 18 and the cross-pin 19 is predeformed to a generally flattened shape which can open to permit flow of liquid but can be closed with little force and by a short movement of the lever 18.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.