Mail feeder with improved stripper mechanism
US8397899B2 · kind B2 · utility
5Cited by
3References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 8, 2010 |
| Grant date | Mar 19, 2013 |
| Priority date | — |
| Expiry date | Jan 19, 2031 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65H2701/1916
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A stripper of the invention uses flat metal springs (leaf springs) preferably made of spring steel and a flexible polymer based friction material covering the springs on one side so that the friction material contacts an incoming mail piece passing by the stripper along the friction surface presented by the outside of the friction material. A stripper according to the invention has variable stiffness, is quick responding, and is critically damped, meaning that incoming mail pieces will not bounce off it with excessive force likely to cause a misfeed or loss of control of the mail piece.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.