Punching mechanism
US5024127A · kind A · utility
8Cited by
9References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 10, 1989 |
| Grant date | Jun 18, 1991 |
| Priority date | — |
| Expiry date | Oct 10, 2009 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T83/8768
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A punching mechanism includes a permanent magnet and a pole-piece connected to one pole of the permanent magnet and spaced from the other pole by a gap. A movable coil is disposed at least partially within the gap. A punch actuator is connected to the movable coil, and conductors are provided for conducting an electrical current to the coil. Current is supplied to the coil to effect a punching action.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.