Cap skirt with single bead and container neck structure
US6082567A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Oct 23, 1997 |
| Grant date | Jul 4, 2000 |
| Priority date | — |
| Expiry date | Oct 23, 2017 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65D2577/205
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A container, preferably of small capacity, such as a school milk plastic bottle, has a neck having an in-turned lip flange, a vertical surface spaced below the lip flange and an external shoulder below the vertical surface. A second external shoulder below the first-mentioned shoulder is preferably slanted upwardly-outwardly. A cap for the neck has a top and a skirt depending from the top formed with internal bead segments which snap under the first mentioned shoulder. The lower edge of the skirt fits tightly against the second shoulder to prevent the fingernails from being used to overcome the tamper-evident feature of the cap. A tear tab (preferably chevron-shaped in cross-section) depends from the skirt. An external, vertical scoreline adjoins the tab and at its upper end is adjacent a second scoreline which is formed on the interior of the top. Pulling the tab tears the skirt from the top for about 342.degree. of its circumference. A plug hollow on the underside of the top engages the interior of the container neck. Preferably the engagement of plug and interior prevents sealing reclosure of the cap.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.