Hollow core holder
US4401336A · kind A · utility
1Cited by
2References
4Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Feb 17, 1981 |
| Grant date | Aug 30, 1983 |
| Priority date | — |
| Expiry date | Feb 17, 2001 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65H2701/31
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A hollow core holder comprising a hollow cylinder with a passive cam locking element eccentrically rotatably mounted inside the cylinder such that a portion of the edge of the cam protrudes through a slot in the wall of the cylinder in one rotation status and is wholly within the cylinder in another rotation status. As the core holder is inserted into a hollow core, the cam comes into contact with the core, holding the core to the core holder until a release mechanism rotates the cam into the cylinder, out of contact with the core.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.