Apparatus and method for sealing an envelope
US6790303B2 · kind B2 · utility
3Cited by
5References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 17, 2001 |
| Grant date | Sep 14, 2004 |
| Priority date | — |
| Expiry date | Apr 4, 2022 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T156/1051
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
An envelope with its flap in an open position is driven along a transport path by first transport means (31a) at a first location. When the crease line between the flap and the body of the envelope reaches a predetermined location along the transport path, buckling means (31b, 53) engage the envelope from opposite sides at a second location, spaced apart from the first location, such as to cause the envelope to buckle laterally of the transport path and be partially closed. The buckling envelope with its crease line leading is then received by sealing means (31a, 31b), by means of which the envelope fully closed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.