High speed envelope flap opener
US4715164A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Feb 28, 1986 |
| Grant date | Dec 29, 1987 |
| Priority date | — |
| Expiry date | Feb 28, 2006 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB43M7/00
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
In accordance with the invention, a novel high-speed flap-opening apparatus is used in combination with a relatively large transfer roller having two spaced rollers disposed along the periphery to form two separated nips. The pivotable envelope flap-opener comprises guide means having a lip for engaging the flap of the envelope. The flap-opener is disposed at a first position for receiving an envelope from the first nip. The force of the envelope causes the flap-opener to move to a second position which guides the envelope to the second nip of the envelope. As the flap emerges from the first nip, the lip of the flap-opener engages the flap to bend it back as the envelope passes through the second nip.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.