Magnetically actuable safety apparatus
US4135320A · kind A · utility
23Cited by
2References
37Claims
0Family size
Inventor
Key dates
| Filing date | Mar 24, 1977 |
| Grant date | Jan 23, 1979 |
| Priority date | — |
| Expiry date | Mar 24, 1997 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF41A17/74
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
An apparatus for selectively blocking movement of a part of a device employing the apparatus which is particularly useful in preventing the unauthorized firing of a weapon or operation of other touch-actuable devices. The apparatus typically comprises a magnetically actuable member slidably mounted in a housing and magnetic biasing means juxtaposed the magnetically actuable member for maintaining the member in blocking relationship with the part. A magnetic means is provided from without the device for overcoming the attraction or repulsion of the matnetic biasing means, whereby the part is free to move.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.