| 摘要 |
An alarm system that abuts against a barrier to help prevent entry. The alarm system includes a support portion, such as a tripod. The support portion forms a footprint for firmly pressing against the barrier at an angle. The footprint includes uneven lengths for the legs, a small distance between the ends of each leg, a brace that securely joins each leg, and support portion mounts that join to the ends of the legs for entrenching firmly into the ground surface. A mounting portion at the other end of the support portion includes a collar shape that is configured to engage a barrier fastener, such as a door knob. The support portion tilts against the barrier to resist a force from the opposite side of the barrier. An alarm portion with a sensor detects a force from the door and emits an alarm as required. |
| 主权项 |
1. A system comprising:
at least one support, said at least one support portion being configured to at least partially abut against a barrier; and an alarm portion, said alarm portion being disposed to join with said at least one support portion, said alarm portion further being disposed to engage said barrier, said alarm portion comprising a sensor, said sensor being configured to detect a force from said barrier, said alarm portion being operable to emit an alarm upon detection of said force by said sensor. |
