Dropper assembly
US4286633A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Sep 12, 1979 |
| Grant date | Sep 1, 1981 |
| Priority date | — |
| Expiry date | Sep 12, 1999 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65D50/041
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A squeeze bulb dropper assembly is combined with a child resistant closure to form an assembly which cannot be readily removed by younger children. The assembly provides a vapor proof and leakproof connection with the bottle. The preferred assembly employs a closure having an outer cap and an inner cap in which the inner cap rotates with the outer cap in an application direction, but remains stationary relative to a bottle to which it is engaged when the outer cap is rotated in a removal direction unless a simultaneous downward force is applied to the outer cap to intermesh cooperating members on the caps. The closure includes a dropper bulb disposed through the caps so that a resilient compressible flange on the bulb provides the spacing between the cooperating members of the caps unless a downward pressure on the outer cap compresses the flange.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.