Sheet feeding device
US4606535A · kind A · utility
17Cited by
5References
12Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Nov 30, 1984 |
| Grant date | Aug 19, 1986 |
| Priority date | — |
| Expiry date | Nov 30, 2004 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65H3/5238
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A sheet feeding device for feeding single sheets of paper from the bottom of a stack of paper sheets. The device includes a feed tray angled at approximately 60.degree. with the horizontal and a substantially rigid paper drive member cooperating with a plurality of differentially yieldable retard members. By successively increasing the normal pressure on the members or by changing their coefficients of friction, increments of increasing or decreasing retarding force are provided. Uniform frictional forces between individual sheets are provided by a bail weight.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.