Ring mill apparatus and method
US7596979B2 · kind B2 · utility
0Cited by
34References
42Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Nov 1, 2007 |
| Grant date | Oct 6, 2009 |
| Priority date | — |
| Expiry date | Nov 1, 2027 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB21H1/06
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A ring mill apparatus and method utilizes at least one hydraulic or other direct drive motor to drive a roller in contact with a ring that is to be expanded by the ring mill. The motor may be two opposed radial piston hydraulic motors, to drive an upper king roller, which contacts the outside of the ring, which is inserted between the upper king roller and a lower mandrel roller, which contacts the inside of the ring. The lower mandrel roller is urged upwards against the ring by a ram driven carriage. Two hydraulic or other direct drive motors can be provided in-line with, and directly connected to, the king roller.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.