High voltage bushing embossing punch tool and method
US6311535A · kind A · utility
0Cited by
5References
14Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Dec 28, 1999 |
| Grant date | Nov 6, 2001 |
| Priority date | — |
| Expiry date | Dec 28, 2019 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB21D22/04
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
The present invention provides a method and system that creates a hole with an embossed base in a planar sheet. The system comprises an embossing punch that forms a raised area in the planar sheet, a hole punch coupled to the embossing punch that forms a hole in the planar sheet, and a surface for holding the planar sheet. The surface has an aperture that permits the hole punch and the embossing punch to pass through the surface and contact the planar sheet.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.