Plastic bottle caps
US4699286A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Aug 7, 1986 |
| Grant date | Oct 13, 1987 |
| Priority date | — |
| Expiry date | Aug 7, 2006 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65D2401/35
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
Plastic bottle caps of the snap-on type having tamper indicating means such as a tear band. The top wall of the tap overhangs its side wall and the overhanging lip is filleted at an angle of about 30.degree. to increase the difficulty of removing the cap by hand without visibly affecting the tamper indicating means. Also, the cap has interior interrupted beads for snapping over a shoulder of the bottle neck and has ribs in the interruptions for adjusting the magnitude of the snap-on and snap-off forces. The cap is molded on a core having grooves for forming the beads and ribs. The cap may have a non-resilient gasket and a dished top so that it can exert pressure on the gasket.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.