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| Number | Title | Issue Date |
| 4250489 | Distribution network communication system having branch connected repeaters Bidirectional addressable repeaters of a power line carrier communication system each include an address recognition and a receive and transmit control logic circuit having programmable zone and address identifying states for connection in plural repeatin... | 02/10/1981 |
| 4238729 | Magnetic damping system having low induction magnet A magnetic damping system for induction devices having electroconductive disk armatures includes a low induction, high coercive force magnet that is vertically elongated and has a horizontal direction of magnetization parallel to the disk. Flux concentrat... | 12/09/1980 |
| 4225839 | Current transformer A current transformer is encapsulated in an injection molded layer of insulating material. The current transformer includes a secondary terminal assembly having individual terminals mounted on a terminal board. The terminal board is formed of a material t... | 09/30/1980 |
| 4213090 | Integral flux lagging and light load adjustment assembly for watthour meters A voltage magnetic section of a watthour meter includes a voltage flux lagging loop formed integrally with a platform part directly attached to the voltage magnetic core. Light load adjustment members are movably mounted on the platform which also carries... | 07/15/1980 |
| 4210901 | Signal repeater for a distribution network communication system A distribution network power line communication system divided into addressable communication zones defined by signal repeaters located at spaced intervals along the distribution network. The signal repeaters are switchably disposed in signal communicatio... | 07/01/1980 |
| 4206443 | Protective load disconnect unit for remote load control systems A protective load disconnect unit is remotely controlled at a single control input terminal from a master controller and monitoring unit. A power switching circuit is actuated to switch a load to be controlled from on to off by a control signal from the m... | 06/03/1980 |
| 4199743 | Encapsulated current transformer A current transformer encapsulated in an injection molded layer of insulating material. The current transformer includes a secondary winding which is disposed around a winding spool having side flanges thereon. Permanent spacers extend across the length o... | 04/22/1980 |
| 4199761 | Multichannel radio communication system for automated power line distribution networks An automated electric power distribution network includes a radio communication system for transmitting multipurpose, multitone signals in one or more signaling channels over the auxiliary channel or channels of one or more commercial broadcast stations. ... | 04/22/1980 |
| 4197582 | Auxiliary power supply and timer arrangement for time registering multifunctional electric energy meters A time based measuring system for electric energy meters includes a non-volatile data memory for processing time related data. The system further includes a main DC supply energized from an AC source and an auxiliary DC supply energized by a primary batte... | 04/08/1980 |
| 4196946 | Temperature compensated magnetic bearing system for a watthour meter A repulsion-type permanent magnet bearing system for watthour meters includes identical upper and lower permanent magnet assemblies. Each assembly includes a hollow cylindrical magnet including a temperature compensating sleeve extending through each magn... | 04/08/1980 |
| 4182982 | Current sensing transducer for power line current measurements A current sensing transducer includes a conductive current divider including a branch path for conducting a fractional current proportional to a current to be sensed and being applied through the divider. A compensated transformer includes a primary circu... | 01/08/1980 |
| 4182983 | Electronic AC electric energy measuring circuit An electronic AC electric energy measuring circuit converts a di/dt analog input signal into a pulse width modulated signal responsive to the amplitude of a current component of an alternating current energy quantity to be measured. The pulse width modula... | 01/08/1980 |
| 4182984 | Magnetic damping assembly with temperature compensator for watthour meters A watthour meter damping assembly includes a U-shaped magnetic yoke and a pair of highly coercive and anisotropic permanent magnets projecting in facing relationship from the ends of the yoke. Opposing pole faces of the magnets form an air gap receiving a... | 01/08/1980 |
| 4173375 | Remote lubrication system for vertical motor shafts A rotatable shaft has an extended vertical length radially supported by a lubricant impervious bearing. Lubricant is transferred upward to the shaft bearing surface by capillary attraction from an absorbent washer surrounding the bottom of the bearing. A ... | 11/06/1979 |
| 4163939 | Anti-static plastic enclosure for electric utility meters An electric utility meter includes a detachable anti-static plastic cover having an electroconductive layer on the cover front face. The conductive layer extends between the cover and a dial pointer of the meter. An electric contact projects into the inte... | 08/07/1979 |
| 4162051 | Tape recorder having magnetically controlled tape tensioning A load survey tape recorder has a tape transport assembly including a supply spindle assembly having a magnetic brake and a take-up spindle assembly having a magnetic clutch. Substantially constant tensions are maintained in a recording tape as it is driv... | 07/24/1979 |
| 4156184 | On-peak watthour demand meter having compensation for disc loading variations A timing motor of an on-peak demand meter is turned on only during maximum demand metering times. Torque aiding effects of the timing motor stray flux augment the meter disc torque to compensate for the intermittent demand gearing load.... | 05/22/1979 |
| 4149741 | Tamper-proof sealing ring for watthour meters A sealing ring for clamping a watthour meter to a meter socket box includes a permanent locking mechanism mounted on the ends of a clamping band. A catch assembly includes a detent carried within a shielding enclosure on one band end. A latching assembly ... | 04/17/1979 |
| 4147983 | Remote meter reading maximum KW demand meter A remote meter reading maximum KW demand meter includes a register having an integral pulse initiator. The register drives the pulse initiator in response to maximum demand measuring movement of the meter. In one mode of operation, demand indicating pulse... | 04/03/1979 |
| 4137451 | Detecting circuit for a photocell pattern sensing assembly Encoding photocells are positioned in a circuit array for sensing lighted and unlighted variations produced by changes in an optical code pattern. Corresponding signal output changes of the encloding photocells are detected by being sequentially connected... | 01/30/1979 |
| 4130874 | Load management terminal having plural selectable address formats for a power line communication system A load management terminal for each of remote electric utility customer locations included in a power line communication system is addressable by alternate codes. A combined unique, selected block and universal block address recognition circuit is alterna... | 12/19/1978 |
| 4128807 | Multi-dial electric meter register A multi-dial meter register includes two energy consumption dial gear trains and a maximum power demand gear train that are selectively coupled to the meter movement of an electric utility billing meter. Two shifting control plates produce engagements and... | 12/05/1978 |
| 4115835 | Electric load research device including an enclosure having adjustable meter positions An electric load research device includes an enclosure having a pulse data recorder and an adjustable meter mounting arrangement for attaching an impulse sending electric meter. The meter is attachable in different rotated positions within the research de... | 09/19/1978 |
| 4110814 | Watthour meter enclosure for use in remote meter reading packages An enclosure for watthour meters includes a cover having an opening for connecting a meter data sending unit within the enclosure to an adjacent remote meter reading terminal unit. A cover locking rim has locking tabs for securing the cover to a meter bas... | 08/29/1978 |
| 4077061 | Digital processing and calculating AC electric energy metering system A metering system for electric utility power line measurements includes voltage and current signal inputs that are randomly sampled and converted to binary representations. A system sequence controller and calculator provides programmed control for proces... | 02/28/1978 |
| 4072267 | Meter encoding register having an improved pointer shaft assembly A meter encoding register includes pointer shaft assemblies associated with each of a plurality of dials provided in the register. The shaft assemblies are rotationally interconnected to each other and to a meter movement drive through friction clutch cou... | 02/07/1978 |
| 4068109 | Manual operator for a pushbutton control device A manual operator for a pushbutton control device includes a cover having protected space surrounding an opening receiving the pushbutton. The cover further includes a raised stop surface adjacent the protected space. A lever actuator is pivotally mounted... | 01/10/1978 |
| 4068288 | Tamper proof watthour meter enclosure having a permanent locking arrangement A watthour meter cover is permanently locked to the meter base assembly by an irremovable fastener applied to the base at a concealed location.... | 01/10/1978 |
| 4065793 | Translator for processing meter telemetry recording containing power loss pulses A translator system which includes circuitry for differentiating between normal interval timing pulses and power loss pulses on meter telemetry recordings. The pulses are recorded with a different waveform and are applied to wave-shaping circuitry which p... | 12/27/1977 |
| 4063661 | Electric load research device including an enclosure having adjustable meter positions An electric load research device includes an enclosure having a pulse data recorder and an adjustable meter mounting arrangement for attaching an impulse sending electric meter. The meter is attachable in different rotated positions within the research de... | 12/20/1977 |
| 4056774 | Electronic watthour meter circuit An electrical energy measuring circuit is responsive to two analog signals proportional to the voltage and current components of an electrical energy quantity to be measured. Voltage-to-frequency converters convert sampled DC voltages into first and secon... | 11/01/1977 |
| 4047024 | Photoelectric disc reader with alternate reading locations A photoelectric pulse initiator includes a rotating pattern having a single track of indicia scanned by two optoelectronic sensors. The sensors having different mounting relationships for scanning different indicia patterns. Alternate impulses from the se... | 09/06/1977 |
| 4039959 | Two-tone decoder having high noise immunity A decoder for converting a frequency coded digital input signal into a binary output signal. The decoder includes circuitry which detects when the input signal consists of the proper tones. When these tones are present, the decoder circuitry converts the ... | 08/02/1977 |
| 4039943 | Position sensitive anti-tamper watthour meter An anti-tamper watthour meter includes a gravity actuated switch arrangement for reversing the meter voltage winding connections across the meter terminal blades when the meter is installed in an inverted position. An additional penalty metering arrangeme... | 08/02/1977 |
| 4038541 | Hard magnetic bubble domain analog multiplier Hard magnetic bubble domains are propagated in displaced orbits in response to the product of two cyclically varying propagation control fields. The control fields modulate the hard bubble domain diameter and a driving field gradient. Repulsive boundaries... | 07/26/1977 |
| 4037219 | Meter dial encoder for remote meter reading A meter dial encoder for converting angular dial pointer shaft positions includes a single track code pattern having binary coded arcuate sectors rotated by the shaft. The pattern is rotated adjacent a pattern sensing assembly including a single circular ... | 07/19/1977 |
| 4034290 | Electrical meter assembly having displaced meter and socket terminals An electrical meter assembly including a plug-in meter and a meter socket, each having terminals. An adaptor modifies a terminal of the meter socket, enabling the modified and unmodified terminals thereof to engage the terminals of the meter in only one o... | 07/05/1977 |
| 4016429 | Power line carrier communication system for signaling customer locations through ground wire conductors Carrier current signals are impressed to and detected from grounding conductors connected to the power system and to real earth ground. The communication links provided by the grounded neutral conductors of the power system and by the real earth ground re... | 04/05/1977 |
| 4012733 | Distribution power line communication system including a messenger wire communications link A distribution power line communication system wherein communication signals are transferred between a communication terminal at a substation and communication terminals at customer locations. The communication signals are transferred between the terminal... | 03/15/1977 |
| 4008467 | Power line carrier communication system having efficient carrier signal coupling of distribution secondary lines An arrangement of components for a distribution line communication system. Two or more independent secondary distribution lines are connected, through distribution transformers, to a primary distribution line. Carrier communication signals are transferred... | 02/15/1977 |
