Abstract: A therapy tool system includes a rigid therapy tool for passing across a patient's skin for loosening subcutaneous tissue. The rigid tool includes an electrically conductive portion engageable with a patient's skin. A current source is provided for providing an electric current. A connector member is provided that is selectively attachable and removable from the rigidtool. The tool member is coupled to the current source for conducting current between the current source and the tool. The rigid tool includes a conductive path for conducting current from the connector to the electrically conductive portion of the tool, to enable current delivered to the connector portion from the current source to be conducted to the electrically conductive portion of the tool and transferred from the tool through the patient's skin to subcutaneous patient tissues.

Abstract: An off fire cooling system having an octagonal body shape and split fire system which doubles the coal heating surface area and doubles the coal heat output. The cooking system also has an air introduction system which circulates air throughout the interior of the grill to maintain an optimum cooking temperature. The octagonal maintains the cooking temperature at or above 400 degrees Fahrenheit in the center of the grilling system. The system eliminates grease fires and smoke associated with grease fire flare ups. The charcoal and food products are suspended for optimum cooking while preventing grease from falling onto the burning charcoal coals.

Abstract: A method of detecting an effluent level in an aircraft lavatory holding tank and a device for practicing the method. The device uses electrodynamic forces of different values generated by an electro-impulse solenoid to determine whether a detector is contaminated, to dislodge contaminants, and to measure the fluid level in the holding tank when the detector is clean enough to produce an accurate reading.

Abstract: Ice detection apparatus for use with aircraft having an EIDI solenoid mounted in proximity to the aircraft skin includes a current pulse generator selectively supplying the EIDI solenoid with current pulses of first and second levels, the second level being effective to generate force upon the skin to remove ice from the skin, and the first level being less than the second level. An accelerometer mounted on the interior surface of the skin produces an output signal in response to force imposed on the skin by current pulses of the first level. The output of the accelerometer is a function of both the current pulse level and of the presence of ice. A comparator is provided to generate an output signal indicative of the presence of ice when the accelerometer output signal reaches a predetermined level.

Abstract: A passenger entertainment system having direct coupled individual seat receivers. Direct coupling of receivers to the passenger entertainment power and intelligence information signals is provided through a seat track transmission line consisting of one or more conductors associated with the seat track and running parallel to the seat track.

Abstract: A method and apparatus for interconnecting passenger entertainment service units to the aircraft system through connectorless inductive couplers. Couplers are arranged along the seat track as desired without limitation on seat spacing or location.

Abstract: A pulse height counter for counting the number of excursions of an incoming analog signal through each of a plurality of amplitude ranges. The pulse height counter automatically records not only the number of excursions through each amplitude level, but also records the number of amplitude excursions for each of a plurality of intervals. An analog input signal to be analyzed is synchronously applied to each of a plurality of comparators (VCO - VCF), which have reference voltages that are related so as to define predetermined amplitude ranges. During a count cycle, a counting circuit (CO - CF) receives the output signals from each of the comparators and produces a set of count data that indicates the number of occurrences of the analog input signal within each of the amplitude ranges. The count cycle is followed by a write cycle, during which the count values are stored in separate data bins, or event memories (MO - MF).

Abstract: In a communications receiver where the AGC signal derived from a phaselock detector is used to measure input signal strength, and that measurement is subject to error as a result of the nonlinear devices used in the carrier demodulation, a signal having inversely corresponding error characteristics is summed to the phaselock detector AGC signal to produce an improved AGC signal which is substantially linearly related to the input signal. That signal, having the inversely corresponding error characteristics, has been found to be the signal representation of the envelope of either the positive or negative cycles of the input signal.

Abstract: An assembly for attachment to a hollow ornament such as a Christmas tree ball having a cap adapted to fit over the open end or neck of the ornament, and defining a cut-out area. A clip having an elongated central portion and outwardly extending end portions, stop means located at each end of the central portion and teeth means interposed between the stop means and the outwardly extending end portions also comprises part of the assembly. The cap and clip are comprised of a flexible and bendable plastic material which is electrically non-conductive and fire resistant. The central portion of the clip extends in U-shape configuration through the cut-out area of the cap and the outwardly extending end portions of the clip engage the interior part of the hollow ornament beneath its open end. The stops are positioned above the cap and are of sufficient length compared to the cut-out area to prevent the central portion of the clip from falling through the cut-out area into the interior of the ornament.

Abstract: A radio receiver includes a phaselocked loop including a main phase detector which accomplishes both carrier extraction and demodulation of an FM orderwire signal. The loop bandwidth characteristic is made suitable for de-emphasis of the FM orderwire audio signal, and the output of a quadrature phase detector is applied as a divisor to an analog divider in the phaselocked loop to cause the bandwidth of the phaselocked loop to remain substantially constant despite changes in input signal level.

Abstract: A phaselock loop in a phaselock receiver includes a voltage-controlled oscillator, and a main phase detector receptive to an output of the oscillator and a received signal. Means to detect when the oscillator is phase locked with the received signal includes a quadrature phase detector receptive to a quadrature-phase-shifted oscillation from the oscillator and the received signal. Means are provided to subtract the direct-current component of the output of the main phase detector from the direct-current component of the output of the quadrature phase detector to provide a phaselock-indicating signal which is substantially zero when the oscillator is out-of-lock with the received signal, and which is high when the oscillator is in-lock with the received signal.