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T. Craven, FCC Commissioner ; 1961
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| Number | Title | Issue Date |
| 4280064 | Signal isolator An improved signal isolator including two nonlinear circuits having nonlinear voltage-to-current characteristics, in which an input network is formed by connecting one of the nonlinear circuits in series with the primary winding of a transformer, and an o... | 07/21/1981 |
| 4236086 | Apparatus for the detection and processing of electric signals In the exemplary disclosure, a signal transmitter and a signal processing part, which are interconnectable in the signal path by means of a contact plug, have a galvanically separative coupling location in the signal path with primary and secondary coupli... | 11/25/1980 |
| 4209712 | Arrangement for installing electric or electronic equipment in apparatuses for dispensing fuel An arrangement for installing electronic counters in a petrol pump comprising a pressure-tight casing for accommodating the counters, means for providing an excess air pressure in the interior of the casing and a pressure-controlled switch inside the casi... | 06/24/1980 |
| 4194129 | Armature slip analysis of induction motors with temperature and voltage correction Loading of induction motors is monitored and displayed by meters or alarms by analyzing slip of the armature derived from pulse signals indicating motor shaft speed. A special sensor sensing the motor shaft rotation also provides motor operating temperatu... | 03/18/1980 |
| 4149094 | Dental apparatus having a plurality of dental instruments Dental apparatus having a plurality of dental instruments, holders for the instruments, signal transmitters each operable to transmit an extraction signal when an instrument is extracted from its holder, and a logic-actuation circuit for each instrument c... | 04/10/1979 |
| 4145620 | Modular dynamic burn-in apparatus A modular-type integrated circuit burn-in apparatus including a power supply for developing integrated circuit biasing potentials, an oven and a plurality of modules each having a plug-in pattern generator for generating integrated circuit exercising sign... | 03/20/1979 |
| 4143282 | Bilateral energy transfer apparatus Energy is transferred between first and second terminals by opening and closing a first current path between the first terminal and ground while concurrently operating a second current path in complementary fashion. The second current path connects in one... | 03/06/1979 |
| 4142178 | High voltage signal coupler for a distribution network power line carrier communication system A high voltage signal coupler couples carrier communication signals between a distribution network primary conductor and communication elements located at spaced intervals on the distribution network. A single bushing, high frequency, coupling capacitor c... | 02/27/1979 |
| 4128871 | High voltage DC power supply A high voltage DC power supply including a high voltage transformer having output bushings extending from the transformer housing, and a rectifier unit mounted between the high voltage bushings. The rectifier unit is housed in an electrically nonconductin... | 12/05/1978 |
| 4127803 | Charging circuit for an auxiliary battery on an electrically-propelled vehicle The charging circuit is for charging an auxiliary battery of a vehicle which is driven by an electric motor supplied with current by a main battery through a supply circuit comprising a device for chopping the battery voltage during the vehicle starting a... | 11/28/1978 |
| 4096545 | Electrical appliance with adapter seatable upon a base unit A cordless electrical appliance is provided with an adapter unit and the two of them can be rested upon a base unit. The base unit has contacts connected to a supply voltage, and includes an appliance-current path with appliance-current-path contacts, and... | 06/20/1978 |
| 4088900 | Safety circuit, especially for elevators and the like A safety circuit arrangement, especially for transportation systems such as elevators, comprising at least one switching circuit equipped with two digital logical elements, each arranged in a separate information channel and connected at its input side wi... | 05/09/1978 |
| 4087701 | Transformer cascade for powering electronics on high voltage transmission lines Power for electronic instrumentation on high voltage transmission lines is provided through a high efficiency cascade of ferrite core transformers operating in the superaudio range. An array of tuning capacitors is provided to neutralize the leakage induc... | 05/02/1978 |
| 4065763 | Distribution network power line communication system A distribution network power line communication system which includes coupling means for applying a carrier current communication signal to the polyphase primary distribution conductors with a proportional relationship between the signal voltages applied ... | 12/27/1977 |
| 4044269 | Circuit arrangement for a repetition-blocking device The circuit arrangement includes a transformer having a primary side included in at least one phase conductor of a polyphase supply for the load. A control circuit is connected to the secondary side of the transformer and includes a threshold circuit rece... | 08/23/1977 |
| 4042832 | Logic board interlock indication apparatus A plurality of logic boards coupled together over a common electrical bus by use of a plurality of connectors, at least one per board, which includes at least one pair of terminals for coupling an interlock signal wire which is daisy chained through each ... | 08/16/1977 |
| 4017767 | Laser lightning rod system A system utilizing ionization produced by beams from laser and laser-like devices to pre-determine the course of stepped leader and lightning channel development, thereby affording protection of life and property. The applications of such a capacity to ha... | 04/12/1977 |
| 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 |
| 4008404 | Interval timer An interval timer for use in traffic control, industrial process control, or other interval timing applications includes a gated pulse generator.... | 02/15/1977 |
| 4007380 | Control of chokes A well choke control apparatus comprising means for producing a first electrical signal indicative of a required position of the choke and means for deriving a second electrical signal indicative of the actual position of the choke. A comparator is arrang... | 02/08/1977 |
| 4001672 | Polyphase AC power transmission arrangement with homogeneous phases Disclosed is an alternating current transmission, comprising two lines wherein homogeneous phases of different lines are separated from each other by a minimum distance permissible for interphase overvoltages. Installed at the terminals of each of the lin... | 01/04/1977 |
| 4001600 | Interconnecting circuit for EBS diodes and method An electron-bombarded semiconductor (EBS) source including plural EBS diodes connected in series at the fundamental radio frequency operating range delivers power to a load. A single voltage supply is provided and radio frequency isolation means is connec... | 01/04/1977 |
| 3942099 | Measuring transformer with a capacitor bushing A measuring transformer arrangement with a capacitor bushing and devices for measuring voltage and current associated with the capacitor bushing is suitable for use in a high-voltage installation with metal encapsulation carrying several high-voltage cond... | 03/02/1976 |
| 3932765 | Polyphase rectifier system for providing two output current-voltage ranges A polyphase rectifier system which provides two output current-voltage ranges upon the system direct current output circuitry. Each phase of a polyphase potential source is rectified by a respective rectifier circuit having the alternating current input c... | 01/13/1976 |
