Key holding tool for impressioning
US5058465A · kind A · utility
29Cited by
5References
4Claims
0Family size
Inventor
Key dates
| Filing date | May 8, 1989 |
| Grant date | Oct 22, 1991 |
| Priority date | — |
| Expiry date | May 8, 2009 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T70/8676
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A device for holding a lock key firmly while inserting the key in a lock on a building, automobile, filing cabinet or other. The purpose of the tool is to impart torque simultaneous with a rocking motion to the key. This causes marks to be made on the key by the lock pins or wafers and shows the locksmith where to file the key to make it open the lock. This procedure is well known to those in the locksmith's trade, and is called impressioning.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.