Portable personal property protector
US5162778A · kind A · utility
4Cited by
4References
5Claims
0Family size
Inventor
Key dates
| Filing date | Apr 15, 1991 |
| Grant date | Nov 10, 1992 |
| Priority date | — |
| Expiry date | Apr 15, 2011 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG08B13/1436
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
A portable anti-theft device has a gravity operated switch, settable manually or by action of gravity to an open position. This switch is connected in series with a key switch and an alarm, to provide an alarm when the gravity operated switch is moved. The gravity operated switch may be a mercury switch. The gravity operated switch may be pendularly mounted, and be restrained from movement by operation of the key switch.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.