Abstract: A method of improving the magnetic properties of a ferromagnetic materials is disclosed. The method comprises a step of providing a specimen made of Fe, Ni or Co based amorphous alloys in a magnetizing field and a second step of applying an AC current or pulsed current on the specimen to improve its soft magnetic properties. The applied AC current has a frequency of 50 to 50K Hz, a wave form of either sine wave, triangular wave or square wave, and a current density of 10 to 500 A/cm.sup.2. The magnetic properties of the ferromagnetic materials are improved by a coercivity ratio less than 0.5, a magnetic induction ratio greater than 1 and a core loss ratio less than 0.3.

Abstract: An improved capacitance bridge type liquid level control system for use in refrigeration applications is disclosed which provides improved apparatus for sealing the probe in its mounting and for insulating same against the condenser reservoir stand pipe in which it is mounted. Improved sealing between the probe and probe body is accomplished through an annular PTFE seal which when compressed pushes inwardly to seal a tubular PTFE insulation against annular ridges in the side of the probe rod proper. The improved probe rod shape also maintains a proper stabilized axial alignment between the probe rod and the probe body.

Abstract: A printed circuit path, which connects to a reference potential point, is provided along a portion, or more, of a printed circuit board (PCB) assembly which requires protection from electrostatic discharge (ESD). This printed circuit board path has a plurality of intentionally pointed protrusion integrally formed along its length and which point preferably toward the direction from which the electrostatic discharge is likely to approach the printed circuit board assembly; i.e. through housing mating edges or housing surface openings. The pointed conductor path is locate closer to the ESD regions of concern than other circuit paths or component solder pads. The pointed protrusion preferentially attract electrostatic discharges to itself rather than allow the discharges to strike other paths or components further in on the PCB assembly, thereby avoiding component damage.

Abstract: A redundant power bus arrangement for electronic circuits controls the application of voltage from a power source to an active circuit card and a standby circuit card. Current limited switches are used to connect the power source to the active or standby circuits. A switch control circuit controls the conductive state of the current limited switches in response to a control signal generated by at least one of the controlled circuits. The maximum current permitted by each of the current limited switches is less than the maximum output current rating of the power source, thereby preventing a short on a power bus within one of the controlled circuits from affecting the voltage available for the other controlled circuit.

Abstract: Disclosed is a power system for use with a computer, the power system having incorporated in it circuitry for automatically varying the supply voltage output to the computer system based upon the magnitude of the current being supplied to the computer by the power system. Also included in the computer system is a variable frequency clock circuit, the frequency of which changes based upon the supply voltage produced by the power system. This permits, during computer system operation where low voltage and low clock speeds will be sufficient to provide the performance needed, achievement of a power saving since both the voltage and frequency at which the system operates is reduced, thereby markedly reducing the power consumption.

Abstract: Reducing the power consumption of loads fed by one or more power supplies is achieved by the use of apparatus which determines the power supply output and, upon the occurrence of a predetermined condition, generates a signal to the power-consuming loads. In response to this signal, the loads alter their mode of operation so as to reduce the overall demand on the power supply. Several implementations of this load-shedding technique, which is particularly suitable for use in a communications system, are disclosed.

Abstract: A switching system for controlling rf energy through an rf transmission medium including a plurality of semiconductor switching devices connected in a series configuration with the primary electrodes connected in series, and means for providing graduated bias on the control electrodes for establishing an equal control voltage on each device between its control electrode and one of its primary electrodes.

Abstract: An electric utility sub-station having two transformers which transmit electric energy to customers in different service areas. A throwover is provided which is operative, when a failure occurs in one transformer, to switch the load normally carried by the failed transformer over to the other transformer which then carries the load of both transformers. Operation of the throwover is blocked when the total demand load on both transformers exceeds the capacity of either transformer.

Abstract: A locking handle assembly used in combination with printed wiring boards and the like has camming portions which cooperate with a rod on the housing for the boards to act as a lever thereby positively seating and unseating its associated board within the housing. The handle assembly is provided with locking serrations. The serrations are positioned along radial curves so the handle is allowed to undertravel or overtravel, thereby compensating for tolerance buildup which could prevent proper seating of printed wiring assembly. An electrostatic discharge clip of the handle assembly engages the rod on the housing to ground the same and thereby prevent static electricity from the operator from producing an adverse effect on the electronic components.

Abstract: A pulse generator which employs a coaxial type capacitor, including at least one capacitor from which an accumulated charge is discharged when a pulse is generated, and another capacitor for adjusting the waveform of the pulse to be outputted. The coaxial type capacitor in this pulse generator includes at least first, second and third capacitors which are arranged coaxially and adjacent to each other. The first and third capacitors are connected in parallel to form the discharging capacitor of the pulse generator, while the second capacitor is arranged between the first and third capacitors and is used as the waveform adjusting capacitor of the pulse generator. A current in the second capacitor flows in a direction opposite to the direction of currents in the first and third capacitors when a pulse is generated.

Abstract: An improved central lock control system adapted for automatically locking and unlocking all the four doors by way of operation on the lock knobs mounted on the two front doors, and only permitting to automatically unlock all the four doors by way of operation on the lock knobs mounted on the two rear doors for safety consideration; the present lock control system is characterized in that the motor, used to control the motion of an actuator which enables the lock knobs of the doors to perform the locking and unlocking operation, is able to spin clockwise or counter clockwise to generate an inductive voltage on the lock knob being pulled up to unlock or pushed down to lock the doors; the generated inductive voltage is input into an electronic module for logic comparison so to effect the above cited control operation; whereby the control circuit is simplified to a large extent and the mounting of the present system is made easy; besides, the production cost is effectively lowered as a result of the removal of a

Abstract: A scan control circuit for detecting a stable scanning movement of a hand-held type printer over a copy paper includes an encoder for producing pulses in response to the scan movement of the hand-held type printer. The pulses are applied to a stable scan detector and also to a gate circuit. The stable scan detector detects a frequency of the pulses and produces an enable signal when the frequency exceeds a reference frequency. By the enable signal, the gate circuit is enabled to start counting the pulses. When the gate circuit counts a predetermined number of pulses, a power on signal is produced for starting the copy reproducing operation.

Abstract: A film package is provided for containing, heating, and browning or crispening a food item, which incorporates shields covering seal areas and other areas of the package where two or more layers of susceptor-laden film are in contact in the absence of food as a heat sink. The shields prevent the protected areas from overheating.

Abstract: A circuit breaker auxiliary device is housed in its own separate enclosed container and is accessible by a drive pin through an opening in the container mounting surface. A drive pin is inserted into an opening in a circuit breaker housing mounting surface. The container is snap-fitted flushly to a side of the circuit breaker housing. The internal trip mechanism of the circuit breaker and the operative mechanism of the auxiliary device communicate via the drive pin cooperatively linked to each mechanism and operating through the aligned openings in the container and the circuit breaker housing.

Abstract: A web electricity removing roller which removes static charge appearing on the surface of a web formed of paper, a plastic sheet or the like. The roller has a rotary cylindrical body as the main body thereof for guiding contact with the web. The rotary cylindrical body can be electrically connected to a power source or grounded. A plurality of through bores are formed in the peripheral surface of the cylindrical body and a discharge electrode is disposed within the rotary cylindrical body. The electrically charged particles that are radiated from the discharge electrode by corona discharge form an electrically charged layer on the outer peripheral surface of the rotary cylindrical body which can remove the static charges from the surface of the web in surface contact with the roller.

Abstract: An electromagnetic solenoid drive apparatus for use in a vehicle for turning on an electromagnetic solenoid from a battery every time when a command switch is turned on comprises first and second resistors connected in series to each other on an electric line for flowing an electric current through the electromagnetic solenoid; a first switching element turned on in a state in which an output voltage of the battery is lower than a predetermined threshold voltage and short-circuiting both ends of the first resistor; a timer circuit operated for only a constant time in association with the turning-on operation of the command switch; and a second switching element turned on during only the operating period of the timer circuit and short-circuiting both ends of the second resistor.

Abstract: A hoodscoop for attachment to a motor vehicle hood. The hoodscoop has a rear facing surface visible to the driver which is equipped with indicating instruments such as a tachometer, a pair of directional signal indicators, a pair of parking lamp indicators and a pair of high-beam headlamp indicators that are visible to the driver without taking his eyes off the road. The hoodscoop can have a removable back plate so that it can be alternatively a decorative panel or contain the indicating instruments.

Abstract: Audio cabling includes a first conductor in conductive communication with the positive side of the source or of the load. It extends towards but terminates free of the load if it is connected to the source and free of the source if it is connected to the load. A second conductor has a first end in conductive communication with the negative side of the source or of the load. If it is connected to the source negative side it has a second end which extends towards but terminates free of the load. If it is connected to the load negative side it has a second end which extends toward but terminates free of the source. The conductors are separated from one another by a non-conductor. They are sufficiently long whereby they are in adjacent side by side relation at least along portions thereof. High frequency noise which can affect the ear's perception of audio frequency signals is reduced as are low frequency resonance effects.

Abstract: The subject invention is a power supply comprising a magnetic amplifier, filter, back-up battery, switch-over regulating circuit and error amplifier. The magnetic amplifier receives a plurality of AC pulses and controls the pulse width of the pulses. The filter converts the pulses to a DC output. The switch-over regulating circuit connects the battery to the DC output. The error amplifier monitors the DC output and provides, at its output, an error signal to the magnetic amplifier and the switch-over regulating circuit.

Abstract: A firing circuit for deploying a pair of air bags comprises four circuit legs connected in parallel across a voltage supply via a diode shunted with a resistor. The first and second circuit legs each comprise in series a safing sensor, a squib, and a crash sensor, with each sensor being shunted by a like resistor whose resistance is substantially greater than the nominal resistance of the squibs. The third and fourth circuit legs each preferably comprise a resistor in series with a capacitor, with the resistance of the series resistor being significantly greater than that of the resistor shunting the grounded diode. Five bridges interconnect the four circuit legs so as to provide multiple firing paths and continued circuit viability notwithstanding the presence of one or more "faults" in the instant firing circuit.