Envelope assembly
US4212396A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Oct 31, 1978 |
| Grant date | Jul 15, 1980 |
| Priority date | — |
| Expiry date | Oct 31, 1998 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65D27/34
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A stuffed, sealed envelope assembly has superimposed front and back plies with insert material within the envelope unattached to the plies so as to be freely disposed therein. At least one cut line or a line of perforations defining a removable portion is provided in one of the envelope plies in the vicinity of an edge of the insert to facilitate opening of the envelope for exposing the insert for extraction. Chip elements, provided for immobilizing the insert within the envelope, underlie the removable portion and are secured thereto so as to be moved away from the insert upon removal (wholly or partially) of the removable portion. An outline of a simulated flap is applied to the outer surface of the one envelope ply so as to overlie or be delimited by the cut line or line or perforations. Other fold lines may be applied to the same outer surface so as to give the impression together with the flap outline of a folded-flap envelope construction. The envelope assembly is therefore capable of being opened for exposing the insert similar to that of a folded-flap construction.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.