Patent ID: 6084511
Filing Date: 2000-07-04
Classification: G08B

Abstract:
A notification device for use with a plurality of barriers corresponding to a plurality of openings in a container having an interior space accessible through said openings, each barrier having a closed position in which it closes a corresponding opening and an open position to provide access to said interior space, the notification device providing a signal when one or more of said barriers has been moved from the closed position toward said open position, the notification device comprising:(a) a power supply;(b) a sensor mounted adjacent each barrier and corresponding opening for sensing when that barrier is not in a closed position; and(c) a signal generator having multiple signal generation modes for generating a unique notification signal in each mode in response to each sensor; andwherein each sensor for a corresponding barrier: (1) electrically connects the signal generator to the power supply when that barrier is not in the closed position, and (2) electrically disconnects the signal generator from the power supply when the barrier is in the closed position;such that, when electrically connected to the power supply, the signal generator generates a unique notification signal for each barrier not in a closed position.