Dispenser having plunger locking means
US4424919A · kind A · utility
20Cited by
8References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 28, 1981 |
| Grant date | Jan 10, 1984 |
| Priority date | — |
| Expiry date | Oct 28, 2001 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S220/915
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
The reciprocable plunger of a fluid dispenser is immobilized by a frangible strap extending about the plunger and engaging a locking ledge on the container cap. Severance of the strap unlocks the plunger and permits plunger reciprocation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.