Anti-tamper device for utility meters

Details Anti-tamper device for utility meters Anti-tamper device for utility meters

1988-02-24

1989-05-23

Swann, III, Glen R.

Communications: electrical

Condition responsive indicating system

Specific condition

324110, G08B 1314, G01R 100

Patent

active

048334553

ABSTRACT:
An anti-tamper device is disclosed for utility meters of the type comprises comprising a fixed base unit and a removable plug-in unit associated with said base unit. The device comprises an electronic indicator for generating a new indication in response to a trigger signal, and a detector operable in response to the insertion of said plug-unit into the fixed base to generate said trigger signal. A different indication is generated each time the plug-in unit is inserted into the fixed base, thereby facilitating the detection of meter tampering.

REFERENCES:
patent: 3992705 (1976-11-01), Langenfeld
patent: 4542337 (1985-09-01), Rausch
patent: 4588949 (1986-05-01), Becker et al.
patent: 4600923 (1986-07-01), Hicks et al.
patent: 4749938 (1988-06-01), Bishop

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