Abstract: An electromagnetic and thermal shield for an electronic energy meter which includes a base, a register and intermediate electronics. The tapered form fitting shield extends from the register to the base and includes intermediate resilient fasteners formed from the shield to position, secure, and shield the components of the meter.

Abstract: A modular versatile electronic energy meter is provided with current voltage and register modules which may be selected and readily interconnected along with a selected output circuit board and including a plurality of features which may be customized late in the manufacturing cycle or after manufacture, including jumpers adapted to be selectively cut and attachable switch restrictors. Reduction and standarization of components and uncomplex interconnections are provided, along with apparatus to assure proper assembly and testing of the modular meter.

Abstract: A kilowatthour meter includes a voltge stator having a phase lag and light-load adjust assembly which permits smooth adjustment of its phase lag adjust and its light-load adjust from either end of the voltage stator. Each adjustment provides the same effect on the speed of the rotatable disk of the kilowatthour meter. The end of the voltage stator from which adjustment may be performed is established by selectably engaging adjustment screws in the accessible ends of the phase lag adjust and light-load adjust. Thus, voltage stators installed in either left or right positions on the kilowatthour meter are identical except for the ends into which the adjustment screws are installed being the only difference.

Abstract: A battery backup installation for a time of use register for an electric meter is mounted within a case of the electric meter. The case includes a hatch which permits removal and replacement of the battery without requiring removal of the case from the meter. In one embodiment, the battery is installed in a battery clip on the face plate of the meter where it is accessible through the hatch. An extra length of wires from the battery permits the battery, and its mating connectors, to be withdrawn through the hatch for replacement thereof. In a second embodiment of the invention, the battery is captured in a door of the hatch and is withdrawn from the meter by the action of opening the hatch. In this embodiment, the hatch may be hinged or not hinged. Battery replacement is facilitated while the electronic register module is separated from line-supplied power. An auxiliary battery provides an auxiliary source of backup power during batterychange.

Abstract: A magnetically coupled communications port includes a switch for providing an enable signal upon coupling of a detachable magnetic coupler assembly to a fixed coupler assembly. The switch is magnetically activated and is positioned on the fixed coupler assembly in proximity to one end of a cylindrical slug of a magnetically conductive material. The opposite end of the cylindrical slug is positioned co-planar with an external face portion of the fixed coupler assembly. When the detachable magnetic coupler assembly mates with the fixed coupler assembly, contacting the face portion and the co-planar surface of the cylindrical slug, magnetic flux from the detachable magnetic coupler is concentrated through the slug causing the magnetically activated switch to switch from an inactivated position to an activated position.

Abstract: A magnetically coupled communication port includes a push-button switch operable by depressing a plunger slidably mounted in a detachable coupler assembly for providing an enable signal upon coupling of the detachable coupler assembly to a fixed coupler assembly. The plunger is depressed by engagement therewith of a face portion of the fixed coupler assembly upon the magnetic attachment of the detachable coupler assembly with the fixed coupler assembly.

Abstract: Disclosed is a meter cover (housing) mounted receptacle and detachable magnetic coupler incorporating optical communication devices for electronically communicating with electronic circuitry housed within the meter cover.

Abstract: A time of day demand metering system is disclosed for registering the amount of electrical energy consumed during the one demand interval of maximum electrical energy consumption out of a plurality of demand intervals. Means is provided to engage the register of a time of day meter only during those demand intervals when the amount of electrical energy being consumed is in excess of the one previous demand interval of maximum electrical energy consumption.

Abstract: A meter cover (housing) mounted mechanism incorporating a combination key operated tamper resistant security lock, externally controllable meter reset actuator and meter access hatch.

Abstract: A positive acting magnetic clutch and brake assembly characterized by including a movable, magnetic member provided with two sets of detents arranged respectively on its opposing outer surfaces. The member is alternately shiftable into either a brake position, in engagement with a braking post mounted to engage one of the sets of detents, or to a drive position in which a reciprocally mounted mechanical dog is engaged with the other set of detents in a non-slip driving coupling between the magnetic member and a clutch assembly. A reciprocal mounting arrangement for the dog enables the magnetic member to be moved into driving contact with the clutch assembly before the dog becomes positively engaged with any of the detents on the magnetic member.

Abstract: An electronic time-of-day metering system is disclosed for measuring electrical power by at least two different mechanical recording devices depending on the time-of-day and time of week in which the electrical power is being consumed. A conventional kilowatt hour meter includes a set of decade gear driven dials which register the kilowatt hours consumed on a continuous basis. At least one other set of decade gear driven dials is provided for registering the consumption of kilowatt hours during preselected peak power usage intervals. A single MOS integrated circuit controls the operation of the alternate set of decade gear driven dials. This circuit utilizes as its time base the 60 Hz line voltage derived from the energy distribution system being metered. A clock circuit generates timing signals for a clock control circuit which includes a circulatory memory which is preprogrammed to contain the times at which one or more alternate sets of dials are to be actuated.

Abstract: An electronic time-of-day metering system is disclosed for measuring electrical power by at least two different mechanical recording devices depending on the time-of-day and time of week in which the electrical power is being consumed. A conventional kilowatt hour meter includes a set of decade gear driven dials which register the kilowatt hours consumed on a continuous basis. At least one other set of decade gear driven dials is provided for registering the consumption of kilowatt hours during preselected peak power usage intervals. A single MOS integrated circuit controls the operation of the alternate set of decade gear driven dials. This circuit utilizes as its time base the 60 Hz line voltage derived from the energy distribution system being metered. A clock circuit generates timing signals for a clock control circuit which includes a circulatory memory which is preprogrammed to contain the times at which one or more alternate sets of dials are to be actuated.