Method for making moisture impervious packaging systems
US4079567A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Sep 20, 1976 |
| Grant date | Mar 21, 1978 |
| Priority date | — |
| Expiry date | Sep 20, 1996 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S206/812
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
Moisture impervious packaging systems for retaining articles include a container body and a closure lid hingedly connected thereto. The container body includes a bottom wall and upwardly extending peripheral walls ending in an upper surface that defines an access opening into an interior compartment in which the articles are retained. The lid includes a peripheral frame member providing the side margins of the lid, and a separate moisture impervious sheet adhered to the frame member for providing the top wall of the lid. The moisture impervious sheet constituting the top wall of the lid preferably is also adhered to the upper surface of the container body for providing a primary moisture impervious seal for the interior compartment of the container body. The moisture impervious packaging systems are formed by maintaining the peripheral frame member about the outer periphery of the container body with an upper surface of the frame member spaced outwardly from, and adjacent to the upper surface of the container body to circumscribe the access opening into the interior compartment, and, after articles have been deposited into the interior compartment, adhering the moisture impervious …
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.