Apparatus and method for perforating an article
US4122736A · kind A · utility
3Cited by
2References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 14, 1977 |
| Grant date | Oct 31, 1978 |
| Priority date | — |
| Expiry date | Nov 14, 1997 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T83/242
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A punch apparatus is provided to punch holes in an article by the use of a die punch. The die punch is forced through the article to be punched. A cleaning device is extended into engagement with the die punch when the die punch is in a position penetrating the article. This enables a cleaning of the die punch. The cleaning device is then retracted so that the article can be detached from said die punch.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.