Envelope opening apparatus
US5722221A · kind A · utility
29Cited by
20References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 17, 1996 |
| Grant date | Mar 3, 1998 |
| Priority date | — |
| Expiry date | Jan 17, 2016 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB43M3/045
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
An envelope opening apparatus for mail assembly operations which employs timed intermittent bursts of compressed air or other gas. One or more gas jets are used in association with an inserter arm, and envelopes are sequentially conveyed past the inserter arm and gas jets. As each envelope is positioned adjacent to the inserter arm and gas jets, a controller computer activates a control valve, supplying compressed air to the gas jets, which direct a blast of air at the envelope, opening the envelope to form a pocket suitable for insertion thereinto of mail materials.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.