Interlocking closure bar for use in high temperature environment
US4767220A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Aug 10, 1987 |
| Grant date | Aug 30, 1988 |
| Priority date | — |
| Expiry date | Aug 10, 2007 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA44B19/16
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A flexible container for storing foods in a freezer and cooking foods therein. The container includes an interlocking closure fastening device comprising an omega-shaped closure element and a co-acting clamping closure element. The co-acting clamping closure element may have a profile portion comprising two generally parallel arm portions wherein one of the arm portions terminates in an inwardly curved hook portion, and the other arm portion curves slightly inward prior to terminating in an outwardly extending clamp portion; or the profile portion may comprise two outwardly curved arm portions wherein one of the arm portions terminates in an inwardly curved hook portion, and the other arm portion curves inwardly prior to terminating in a slightly outwardly curved hook portion; or the profile portion may comprise one inwardly curved arm portion terminating in an inwardly curved hook portion, and one generally straight arm portion.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.