Communications: electrical – Condition responsive indicating system – Specific condition
Patent
1996-06-05
1997-11-18
Swarthout, Brent A.
Communications: electrical
Condition responsive indicating system
Specific condition
340539, 340572, 340991, 342450, G08B 2300
Patent
active
056892403
ABSTRACT:
A system that transmits and receives signals comprising a master unit and a remote unit, wherein a separation distance between the master unit and remote unit is continuously monitored and an alarm is activated on the master unit when no signal is received from the remote unit for at least a time longer than a preset interval. If the separation distance between the master and remote unit is exceeded for a time longer than a preset time interval, the remote unit activates an alarm attached to the remote unit. The master unit may also be used to activate manually the remote unit's alarm. A pin or key arrangement is provided that ensures that the remote unit is not deactivated without interfacing with the master unit.
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C.O.P. Corp.
Swarthout Brent A.
Trieu Van T.
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