Expandable mandrel
US5314135A · kind A · utility
7Cited by
13References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 12, 1991 |
| Grant date | May 24, 1994 |
| Priority date | — |
| Expiry date | Aug 12, 2011 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65H75/2484
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
An expandable mandrel for mounting a core for winding, in which inner elements are moved inwardly by a floating screw to cam outer elements outwardly to grip the core. The screw is not fixed in the axial direction. Each of the inner elements has a tapered surface slidably positioned in operative relationship with an opposed tapered surface on each of the outer elements. As the inner elements move inwardly the sliding contact of these tapered surfaces cam the outer elements into gripping contact with the inner surface of the core.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.