GUARDING ALARM DETECTOR Russian patent published in 1998 - IPC

FIELD: guarding alarm, in particular, car theft protection. SUBSTANCE: device has dielectric housing 1, current-conducting inertia mass which is designed as ball 3 and insulated contacts 4 and 5 which are located on housing bottom 2 and bulge over its surface. Detector does not require level ground. Before switching it on, detector may have arbitrary position. In any case sensitivity of detector to vibration and alternation of inclination angle is constant. EFFECT: increased functional capabilities. 2 cl, 2 dwg