Core tools
US4155242A · kind A · utility
8Cited by
3References
13Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Dec 12, 1977 |
| Grant date | May 22, 1979 |
| Priority date | — |
| Expiry date | Dec 12, 1997 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB21D41/02
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A tool for insertion into a core including a pair of pivotally connected levers having forwardly-extending jaws for insertion into the core and rearwardly-extending actuating portions to which the opposite ends of a flexible-wall fluid actuator are fixed for applying force to the actuating arms and pivotally expanding the jaws.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.