Programmable universal locating system

Communications: electrical – Condition responsive indicating system – With particular system function

Reexamination Certificate

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Details

C340S504000, C340S539110, C340S539130, C340S539140, C340S539150, C340S539230

Reexamination Certificate

active

06943679

ABSTRACT:
A locating system comprising a control unit, a first integrated circuit, a first actuator and a transceiver. The control unit is configured with a program mode and a locate mode. The first actuator and the transceiver are coupled to the first integrated circuit and configured such that when the control unit is in program mode and the first actuator is activated, the control unit transmits a first signal indicating that the control unit is in program mode and identifies the first actuator.

REFERENCES:
patent: 4476469 (1984-10-01), Lander
patent: 5598143 (1997-01-01), Wentz
patent: 5638050 (1997-06-01), Sacca et al.
patent: 5883576 (1999-03-01), De La Huerga
patent: 5939981 (1999-08-01), Renney
patent: 6346886 (2002-02-01), De La Huerga
patent: 6535120 (2003-03-01), Sebanc et al.
patent: 6563427 (2003-05-01), Bero et al.

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