Shredding machine
US4842205A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jan 13, 1988 |
| Grant date | Jun 27, 1989 |
| Priority date | — |
| Expiry date | Jan 13, 2008 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB02C2018/164
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A shredding machine which comprises a pair of juxtaposed cutting rollers for shredding paper material, a paper feed tray movable between lowered and elevated positions and adapted to support thereon the paper material to be shredded, a feed roller assembly for feeding the paper material from the paper feed tray towards the cutting rollers, a protective cover supported for movement between closed and opened positions and for covering a space above the paper feed tray when in the closed position; and a control for moving the paper feed tray from the elevated position towards the lowered position in response to the movement of the protective cover from the closed position towards the opened position.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.