Patent · US Expired

Alarm device

US5734325A · kind A · utility

6Cited by
12References
9Claims
0Family size

Assignee

Inventors

Key dates

Filing dateOct 10, 1995
Grant dateMar 31, 1998
Priority date
Expiry dateOct 10, 2015

Classification

  • Technology area (CPC G)Physics
  • CPC primaryG08B15/02
  • WIPO fieldControl
  • WIPO sectorInstruments

Abstract

An alarm device for night deposit boxes consists of a housing with a tear gas or dye-releasing alarm in a housing mountable inside the deposit box. The housing includes electrical circuitry, which is connected by a flexible conductor cable to a trigger switch fitting into a magnetic keeper. The keeper is mechanically connected to the deposit box door assembly by a flexible cable. The circuitry includes a key-operated disabling switch and a light-emitting diode which is momentarily energized through a capacitor when the circuit is enabled.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.