Card keying device
US4478469A · kind A · utility
7Cited by
7References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 17, 1982 |
| Grant date | Oct 23, 1984 |
| Priority date | — |
| Expiry date | May 17, 2002 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01R13/629
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A male-female keying device formed of two elongated strips, one on each element that is to be keyed. Correspondingly positioned holes are in each strip. A few projecting male pins are located in selected holes in one strip and several non-projecting pins are located in each hole of the other strip except those holes that are positioned to receive the male projecting pins. A pair of spaced apart elongated pins act as guides in assembling the two strips. A relatively large number of holes in both strips allows a very large number of codes to be arranged, whereby only one pair of male and female strips can be mated.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.