Trident interlocking closure profile configuration
US4710968A · kind A · utility
38Cited by
16References
25Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 11, 1985 |
| Grant date | Dec 1, 1987 |
| Priority date | — |
| Expiry date | Sep 11, 2005 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T24/45168
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
An interlocking closure fastening device comprising an omega-shaped closure element and a co-acting closure element having a trident profile configuration. The co-acting closure element has a profile portion comprising three generally parallel arm portions. The first arm portion terminates in a hook portion, the second arm portion is a generally straight structure having at least one enlarged portion located anterior to its extremity, and the third arm portion terminates in a funnel portion. The closure device is adapted for use with reclosable plastic freezer storage and cooking bags to provide drip-proof and leak-proof seals.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.