Envelope flap separating and distending method and mechanism
US3974749A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Aug 21, 1975 |
| Grant date | Aug 17, 1976 |
| Priority date | — |
| Expiry date | Aug 21, 1995 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB43M3/00
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
A flap separating mechanism and method for distending a flap from a body portion of an envelope. An envelope moving through a mail handling system may require its flap to be moistened and sealed. As a prelude to the moistening procedure, the flap of the envelope must be separated from the body portion. The separating mechanism disclosed herein comprises a pair of axially adjacent rotatable rollers. One of the rollers is positioned at a higher elevation with respect to the other roller, thus forming a body deforming bite for an incoming envelope. One of the rollers is movable with respect to the other roller in order to accommodate for varying envelope thicknesses.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.