Cup container with intergral closure
US5358175A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Mar 17, 1993 |
| Grant date | Oct 25, 1994 |
| Priority date | — |
| Expiry date | Mar 17, 2013 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S229/911
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A container formed of foldable sheet material including a body of a slightly tapered inverted conical configuration having opposed pairs of closure flaps integrally hinged to the upper rim of the body and foldable to overlie the upwardly directed open mouth of the container. The inward folding of the flaps inwardly flex corresponding portions of the body wall to a generally rectangular configuration adjacent and downward from the rim. The outer flaps interlock by a cooperating tongue and slot. In variations, integral or bonded handles are provided to overlie the closed container. Additional sealing at the defined corners between adjacent flaps is achieved by integrally formed folding gussets.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.