Hopper loader with a conveyer having slippage resistance
US6220590A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | May 7, 1998 |
| Grant date | Apr 24, 2001 |
| Priority date | — |
| Expiry date | May 7, 2018 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65H2301/42134
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
The invention pertains to a hopper loader apparatus for separating and forming an overlapping shingled stream of individual signatures of sheet materials from a vertically aligned, parallelepiped shaped stack of such signatures for subsequent handling operations. The hopper loader has a slippage resistant belt which engages a bottom edge of each signature and assists in preventing the signatures from slipping by keeping them upstanding. Preferably the slippage resistant belt has an array of projections extending upwardly from a belt surface which secures the signatures in place. This produces a smooth, regular, even signature stream. Individual signatures flow reliably, one-by-one off of the downward conveyor to another conveyor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.