Head locking means for automatic slitter scorer
US4162643A · kind A · utility
12Cited by
4References
14Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jul 11, 1977 |
| Grant date | Jul 31, 1979 |
| Priority date | — |
| Expiry date | Jul 11, 1997 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T83/949
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
An automatic corrugated paperboard slitter scorer has slitting and scoring heads movable individually or as a group along an expandable shaft by a way of a master shifter. The expandable shaft provides a friction drag to maintain a head in position until all heads are simultaneoulsy locked to the shaft.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.