Method and apparatus for removing sheets from a stack
US4540168A · kind A · utility
4Cited by
8References
6Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jun 22, 1983 |
| Grant date | Sep 10, 1985 |
| Priority date | — |
| Expiry date | Jun 22, 2003 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65H2404/662
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A method and apparatus for singly removing the bottom one of a sheet from a stack of sheets, and utilizing counter rotating discs or plates which sweep the bottom sheet toward its opposite edges and thus create a flat and smooth bottom surface for contact by suction cups to remove the sheet from the stack. The plates are adjustable relative to the widths of the sheets, to thereby accommodate various widths of sheets. An intermediate or central portion of the lower sheet of the stack is made smooth and flat for contact by a suction cup which can therefore remove the sheets at high speeds.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.