Method for making a vehicle anti-theft key with resistor
US5083362A · kind A · utility
11Cited by
4References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 13, 1990 |
| Grant date | Jan 28, 1992 |
| Priority date | — |
| Expiry date | Dec 13, 2010 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T70/8811
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A key with a resistor pellet is assembled by mechanically inserting the pellet into a suitable aperture in the key and displacing a portion of the key material into the body of the pellet by compressing the key around the perimeter of the pellet in a swaging process. The pellet is automatically selected from a plurality of pellets having a plurality of distinctive resistance properties. The pellet is tested to determine conformance with a pre-selected resistance property prior to insertion in the key. After insertion and swaging of the pellet in the key, the resistance properties of the pellet are reconfirmed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.