Closure strip having offset protrusions
US4911293A · kind A · utility
16Cited by
10References
6Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Feb 10, 1989 |
| Grant date | Mar 27, 1990 |
| Priority date | — |
| Expiry date | Feb 10, 2009 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T24/44923
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A multi-closure strip of generally flat, semirigid plastic closures which are jointed by sets of transversely spaced connecting material in which the connecting material is formed between smoothly rounded protrusions, each having an apex and a wider base. The connecting mateial is along a line generaly parallel or at a slight angle to the longitudinal axis of the multi-closure strip. A gap is provided between the transversely spaced sets of closure material so that, by the application of a lateral force, the connecting material is separated in tension as one closure moves laterally relative to the other.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.