Electricity: measuring and testing – Measuring – testing – or sensing electricity – per se – Meter protection or fraud combatting
Patent
1991-05-31
1993-03-23
Karlsen, Ernest F.
Electricity: measuring and testing
Measuring, testing, or sensing electricity, per se
Meter protection or fraud combatting
324156, G01R 100, G01R 104
Patent
active
051967839
ABSTRACT:
A vent (180) for an electricity metering device (30) having a housing (34) having a generally planar surface thereon with a cavity (35), a plurality of vent openings (182) on the surface of the housing (34) which extend through the surface for allowing passage of air therethrough and a plurality of vent shields (184) positioned on one side of the surface adjacent each of the vent openings (182), preventing access through the vent openings (182) into the interior of the housing (34), the vent shields (184) including a first wall (190) extending generally perpendicular from the surface of the housing, and a second wall (192) attached to the first wall (190) extending generally parallel to the surface.
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Asman Sanford J.
Karlsen Ernest F.
Schlumberger Canada, Ltd.
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