Interlocking closure device having controlled separation and improved ease of occlusion
US4917506A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Nov 21, 1988 |
| Grant date | Apr 17, 1990 |
| Priority date | — |
| Expiry date | Nov 21, 2008 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA44B19/16
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A female closure element comprising a U-shaped channel element including a profile portion comprising a base portion having a pair of spaced-apart, parallelly disposed webs extending from the base portion and terminating in hooks extending nonlinearly from the webs and facing each other. The hooks each include a projection extending nonlinearly in a direction facing away from each other. The female closure element may be employed with a male closure element having a U-shaped channel element including a profile portion comprising a base portion having a pair of spaced-apart, parallelly disposed webs attached to the base portion and extending therefrom, the webs terminating in hooks comprising hook portions facing away from each other and hook projections facing toward each other. The closure elements may be employed with containers to provide thereto improved ease of occlusion and controlled separation characteristics.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.