Ultrathin carton closure
US4981256A · kind A · utility
9Cited by
37References
36Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 19, 1990 |
| Grant date | Jan 1, 1991 |
| Priority date | — |
| Expiry date | Mar 19, 2010 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S229/917
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A plastic closure for cartons which permits controlled dispensing of product. The closure is a fitment comprised of a thin material which is of such a minimal thickness that it does not tend to cause uneven stacking of the cartons when they are in flattened form, prior to their erection. The closure is generally thin enough to be accommodated within a carbon having either a 3- or 4- point rule score and normal score caliper balancing. The closure comprises a base member having an aperture, and a cover member which has a depending plug which fits within the aperture of the base when the cover member is in the closed position.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.