Liquid container closure lockable in the open position
US5074441A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Sep 25, 1989 |
| Grant date | Dec 24, 1991 |
| Priority date | — |
| Expiry date | Sep 25, 2009 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65D47/2025
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A closure of a liquid container, such as plastic bottles or chemical bottles, has a cap made of a resilient material and provided with a central opening-and-closing protrusion erected. By fitting a stopper of a relatively hard material onto the cap and provided with an engagement part onto the cap, the contents of the container can be poured and kept at its pouring or dispensing condition after the protrusion is rotated and engaged or hooked with the engagement part by a thumb and finger of the operator or user of the bottle. It is easy to release the hooked or engaged condition of the protrusion of the cap to the lever of the stopper, permitting the contents to be stopped from dispensing instantly.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.