Automatic traying and automatic sweeping device for letter mail
US5347790A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 1, 1992 |
| Grant date | Sep 20, 1994 |
| Priority date | — |
| Expiry date | Dec 1, 2012 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB07C3/008
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
An automatic device for sweeping letter mail or alternatively, stacking and sweeping letter mail, and depositing the resultant stack into a managed mail tray. The sweeping device provides an accumulation platform which receives a stream of mail, the platform having a slidable end plate urged against the accumulating stack of mail which overcomes the urging of the end plate to fill the accumulation platform. A sweep plate is thereafter actuated to pierce the stack and thereafter translate towards the end plate to compress the now captured stack to a specified length. The specified length correspond to trap doors provided in the accumulation platform which thereafter open to vertically drop the stack into a managed mail tray arranged therebelow. A forward plate is provided to pierce the stack with the sweep plate to hold back further accumulated mail while the specified stack is being compressed and deposited. In another embodiment a non-sliding blade is translated upwardly to pierce the accumulating stack at a position corresponding to the length of the trap door. Additionally, a sweeping and stacking device is provided which receives shingled mail pieces onto a conveyor belt which …
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.