Optimized passive gate inverter
US6286831A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Nov 7, 2000 |
| Grant date | Sep 11, 2001 |
| Priority date | — |
| Expiry date | Nov 7, 2020 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65H2404/632
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
In accordance with one aspect of the invention, there is provided an apparatus for guiding a sheet in a stream of sheet progressing through a paper path of a printing machine. The apparatus includes an input feed mechanism for feeding the sheets in a first direction. The apparatus also includes a guide which is operably associated with the input feed mechanism for guiding the sheets along the first direction. The apparatus further includes a movable gate operably associated with the guide. The gate and the guide define a passageway therebetween for passing sheets therethrough. The passageway has a first width at a first position of the gate selected for passing sheets therethrough having a thickness less than a first thickness. The first width of the passageway is selected for inhibiting sheets therethrough having a thickness greater than the first thickness. The passageway has a second width at a second position of the gate spaced from the first position selected for passing sheets therethrough having a thickness up to a second thickness. The second width of the passageway is selected for inhibiting sheets therethrough having a thickness greater than the second thickness. The seco…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.