Core chuck
US4143829A · kind A · utility
7Cited by
4References
6Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Feb 27, 1978 |
| Grant date | Mar 13, 1979 |
| Priority date | — |
| Expiry date | Feb 27, 1998 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65H75/08
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
Apparatus for releasably securing or chucking a workpiece such as a roll of web material includes a rotatable member having a slot defined therein, with a rigid member or chuck blade pivotally mounted in the slot. Rotation of the workpiece in relation to the spindle pivots the rigid member and extends it so that the workpiece is wedged across the spindle and the rigid member.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.