Envelope transport module with vacuum ports for use in an envelope inserting machine
US6755411B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 25, 2002 |
| Grant date | Jun 29, 2004 |
| Priority date | — |
| Expiry date | Dec 27, 2022 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65H2701/1916
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A module in an envelope insertion station for transporting an envelope to an enclosure material insertion location, which uses endless belts to move the envelope until it is stopped by rotatable stops. A fixedly-mounted vacuum module having vacuum ports provides a suction force to the envelope urging the trailing edge of the envelope to press against the belts and provides the normal force required to move an envelope downstream as it enters the insertion deck without slippage against the translating endless belts. Additionally, a second vacuum module having vacuum ports provides suction force urging the leading edge of the envelope to press against the belts and provides the normal force required to prohibit the leading edge of the envelope from buckling during impact with the rotatable stops. The second vacuum module is removably mounted and mechanically linked to the rotatable stops so they can be repositioned together to accommodate different-sized envelopes.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.