Key with movable plunger, security barrel for said key, and a lock equipped with such a barrel
US4667495A · kind A · utility
33Cited by
6References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 13, 1985 |
| Grant date | May 26, 1987 |
| Priority date | — |
| Expiry date | Mar 13, 2005 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T70/7944
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A key comprises a key body provided with at least one translatably movable plunger able to be displaced in a housing provided in the key, the plunger being intended to co-operate with a positioning member provided in the recess of a rotor so as to project from its recess and to push a movable pin of the rotor into a position permitting rotation of the barrel rotor relative to the stator. The key comprises in its head a constricted zone, and the recess of the movable plunger is provided in this constricted zone.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.