Closure cap having structure for minimizing dripping
US5052595A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jun 13, 1990 |
| Grant date | Oct 1, 1991 |
| Priority date | — |
| Expiry date | Jun 13, 2010 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65D47/243
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A closure cap for a container has a mounting part mounted on the container neck with a closure element over the container opening surrounded by small openings, and a movable part for covering the openings around the closure element when it is moved from an opened to a closed position. The movable part has a passage formed by walls in the shape of a truncated cone defining an external orifice of small openings of a given open area and an internal orifice of a larger open area which is recessed inwardly from the external orifice. The difference in orifice area creates a suction force to suck fluid back into the orifices when the container is returned to the upright position.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.