Easy opening, disposable condiment container
US4644732A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Aug 8, 1985 |
| Grant date | Feb 24, 1987 |
| Priority date | — |
| Expiry date | Aug 8, 2005 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65D75/20
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A disposable, portion controlled container for condiments and other comestibles formed from heat sealable material is disclosed, featuring an easy opening of the container by virtue of a unique fold and heat seal made at one corner of the container during manufacture. An inside reverse fold is made in one corner of the container and a heat seal made along a four thickness layer of this inside reverse fold defines a tear line, stronger than the adjacent material. A tab extended from this four thickness heat seal of the inside reverse fold provides the means for opening the container along the tear line. The size of the opening in the container is controlled by the initial width of material used to form the inside reverse fold.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.