Alert alarm responsive to an unaccompanied child

Details Alert alarm responsive to an unaccompanied child Alert alarm responsive to an unaccompanied child

1997-08-20

1998-12-01

Swann, Glen

Communications: electrical

Condition responsive indicating system

Specific condition

340522, 340556, G08B 13183, G08B 13184, G08B 2100

Patent

active

058444874

ABSTRACT:
An alert alarm responsive to the passage of a child unaccompanied by an adult. An adult sensor is placed at an adult height higher than any anticipated child. A child sensor is placed at a height lower than the height of the shortest anticipated child. Actuator circuitry is actuated if a child passes the child sensor unless an adult passed the adult sensor within a limited time either before or after the child passed.

REFERENCES:
patent: 5473310 (1995-12-01), Ko
patent: 5563580 (1996-10-01), Stephens

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