Sheet transport device
US5988631A · kind A · utility
2Cited by
5References
13Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | May 19, 1998 |
| Grant date | Nov 23, 1999 |
| Priority date | — |
| Expiry date | May 19, 2018 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65H2701/1912
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A device (10) to transport sheets such as bank notes (30) comprises a rectangular tube (12) along which there is a flow of air F, the tube having pairs of independently addressable computer controlled flaps (14,16,18,20,22) on opposite internal walls. The pairs of flaps are controlled to project into the tube so as to reduce its height, and cause a local Venturi effect; by operating one or more pairs of flaps at a time in sequence, the Venturi effect moves along the tube, carrying the bank note by a surfing action.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.