Rotating envelope opening finger
US5247780A · kind A · utility
20Cited by
8References
4Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 29, 1993 |
| Grant date | Sep 28, 1993 |
| Priority date | — |
| Expiry date | Mar 29, 2013 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB43M3/045
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
A rotatable guide finger for opening an envelope prior to insertion of documents into the envelope. The finger includes a pivotable arm and a sidewall defining a channel. The sidewall extends downstream from the pivotable arm and has an upper and a lower sidewall portion, each of the sidewall portions including an arc having a radius of about 0.16 inches and a line at an angle of about fifty degrees to a horizontal radius to the arc.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.