Folding jaws cylinder
US6283906A · kind A · utility
7Cited by
8References
7Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Aug 13, 1999 |
| Grant date | Sep 4, 2001 |
| Priority date | — |
| Expiry date | Aug 13, 2019 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65H45/163
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A folding jaw cylinder utilizes folding jaw pairs that automatically adjust the folding gap between the two jaws in each pair in response to the thickness of the folded product. A dual working chamber piston-cylinder unit is placed between first and second rotational carriers of the folding jaw members. One of the chambers is filled with liquid and is linked to a hydraulic accumulator by ways of a flow control valve. The second chamber is provided with compressed air.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.