Printed circuit board keying system
US4568134A · kind A · utility
41Cited by
10References
16Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Feb 21, 1985 |
| Grant date | Feb 4, 1986 |
| Priority date | — |
| Expiry date | Feb 21, 2005 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01R13/6453
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Incorrect pairing of subsidiary printed circuit boards on opposite sides of a main circuit board is prevented by providing a key or orientation insert on each subsidiary circuit board which projects more than half way through an aperture in the main circuit board. Only subsidiary circuit boards with orientation inserts that complement one another in the main circuit board aperture can be mounted opposite one another on the main circuit board.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.