Binary coded key and latch-actuator
US4878367A · kind A · utility
25Cited by
4References
5Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 22, 1985 |
| Grant date | Nov 7, 1989 |
| Priority date | — |
| Expiry date | Mar 22, 2005 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T70/7881
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A tubular key and mating latch-actuator are provided in which the key has inner circumferential recesses and the latch-actuator has a stud having projections therefrom, the recesses and stud projections being arranged according to a binary-code so that each key of a series is unique.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.