Key holding tool
US4136589A · kind A · utility
4Cited by
4References
1Claims
0Family size
Inventor
Key dates
| Filing date | Jul 11, 1977 |
| Grant date | Jan 30, 1979 |
| Priority date | — |
| Expiry date | Jul 11, 1997 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB25B7/02
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
Clamping jaws are associated with a tool of the type which is arranged to open the jaws and to close them in clamping engagement on a key blank. The jaws include a longitudinal dimension biting portion for holding a key blank in a rigid longitudinal extension of the tool for improved manipulation of the key blank. One embodiment of the invention includes a projection disposed rearward of the bitting portion arranged to fit in the usual hole in the head of the key for providing additional stability.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.