Magnetically actuable safety apparatus for preventing unauthorized actuation of a touch-operable device
US4154014A · kind A · utility
Inventor
Key dates
| Filing date | Mar 24, 1977 |
| Grant date | May 15, 1979 |
| Priority date | — |
| Expiry date | Mar 24, 1997 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF41A17/063
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
An apparatus for selectively blocking movement of a part of a device employing said apparatus which is particularly useful in preventing the unauthorized firing of a weapon or removal of screw caps or operation of other touch actuated devices. The apparatus typically comprises a magnetically actuable member mounted to a resilient material which material is mounted to the device for selectively disposing the magnetically actuable member in a conflicting relationship for blocking movement of the part. Magnetic means is provided from without the device and juxtaposed the magnetically-actuable member for attracting or repelling the member out of the blocking relationship with the part whereby the part is free to move.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.