| BELL-OAK INVESTMENT (PROPRIETARY) LIMITED Patent applications |
| Patent application number | Title | Published |
|---|
| 20100219954 | Surveillance Device - An EAS tag ( | 09-02-2010 |
| 20100176951 | SURVEILLANCE DEVICE - A surveillance device in the form of an EAS tag ( | 07-15-2010 |
| 20100066539 | SURVEILLANCE DEVICE - An EAS tag ( | 03-18-2010 |
| 20100060460 | SURVEILLIANCE DEVICE - A surveillance tag ( | 03-11-2010 |
| 20090064734 | SURVEILLANCE DEVICE - An EAS tag is provided, which includes a tack with a shank that can enter an internal cavity of a tag body. One or more sensors are housed inside the cavity and the body defines one or more key apertures through which detacher keys can pass into the cavity. The tag includes a lock mechanism inside the cavity that is displaceable between a lock condition in which the end of the shank is held captive within the lock mechanism a free condition in which the shank can be withdrawn. The tag further includes two or three release mechanisms, a first of which is configured to release the lock mechanism by a key entering the cavity. The second and/or third release mechanisms can also be key operated or can use a magnetic field to displace a lock body to release the lock mechanism. | 03-12-2009 |
