Dual headed punch with tapered neck
US7487703B2 · kind B2 · utility
3Cited by
5References
1Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 14, 2007 |
| Grant date | Feb 10, 2009 |
| Priority date | — |
| Expiry date | Sep 14, 2027 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T83/9432
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A tool is disclosed, for use with a punching press for punching holes in workpieces. A punch body is provided, elongated in an axial direction. A first punch head is formed on an end of the punch body, and has a first radial diameter, perpendicular to the axial direction. A second punch head has a second radial diameter, also perpendicular to the axial direction. The second punch head is substantially spaced from the first punch head. A neck is formed between the first and second punch heads, having a uniformly tapered diameter less than the first and second radial diameters.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.