Abstract: An electronic control system for automatically controlling the locomotive units of a multiple unit locomotive consist in a manner to maintain a selected speed of the consist with minimum fuel consumption. The control system includes a microprocessor and related hardware for each unit in the consist. Control and acknowledgement signals are transmitted among the locomotive units along a single train line wire to vary the output power of each unit among full power, half power and idle speed settings while maintaining the consist at the desired set speed. The hardware is arranged to direct the control and acknowledgement signals to the proper locomotive units while transmitting in both directions along the train line wire. The software for the microprocessors takes into account the acceleration and deceleration of the consist in adjusting the power output of the locomotive units.

Abstract: A moving doppler radar unit capable of separating the incoming doppler signal into its respective frequency components by means of frequency translation techniques and fixed frequency filters is disclosed. When the radar platform vehicle and target vehicle are both moving, the received doppler signal is a complex wave having frequency components related to the ground speed of the platform vehicle and the relative speed of the platform and target vehicles with respect to each other.

Abstract: This invention deals with an improved electrostatic shield which is adapted to be mounted on the applicator of a conventional diathermy apparatus between the radiating electrode thereof and the patient receiving treatment. The shield is comprised of a first and a second plurality of electrically conductive strips which form the body portion of the shield and which encircle the current carrying coil of the radiating electrode. The strips likewise form the face portion of the shield and define a plane which is generally parallel to the plane formed by the current carrying coil.Each strip of the face portion is preferably coupled with one of the strips of the body portion. However, the face portion strips of the shield extend generally radially inward from the outer periphery of the surface defined by the face of the shield. These strips then terminate within the inner portion of the area defined by the shield such that the terminating end of the strips are electrically insulated from each other.

Abstract: This invention discloses a method and apparatus for accurately measuring and controlling the amount of power being absorbed by a load within the irradiating region of a diathermy applicator head. A desired power setting is initially preset into the diathermy apparatus. Thereafter, the diathermy apparatus is keyed on for a predetermined duty cycle causing RF energy to be generated within the applicator head during this time period. The level of power being absorbed by the load is then ascertained by measuring voltage and current flow in the head during the duty cycle. In the preferred embodiment of the invention, the electrostatic energy generated in the applicator head is attenuated by an electrostatic shield. Attenuation of the electrostatic energy improves the stability of the diathermy apparatus by significantly reducing electrostatic coupling between the applicator head and its attendant load.

Abstract: Method and apparatus for minimizing or preventing the deleterious skin heating effects associated with conventional short wave diathermy treatment. The disclosed method includes attenuation of the electrostatic field transmitted by the applicator head and transcutaneous transmission of the radiated electromagnetic energy substantially unimpeded to the deep body tissues to be treated. The attenuation of the electrostatic field is performed by an electrostatic shield, which is adapted to be positioned on the diathermy applicator head between the radiating electrode and the patient receiving treatment. However, the radiated electromagnetic field, which is primarily responsible for the therapeutic generation of heat in relatively deep body tissues, passes through the shield substantially unimpeded. The shield comprises a plurality of narrow, preferably metallic, spaced apart strips and an electrically conductive loop which surrounds the strips and is coplanar therewith.

Abstract: A burner igniting and sustaining arrangement includes a spark plug positioned adjacent the fuel discharge and which is caused to produce a rapidly repeating ignition spark through a circuit responding to a low voltage alternating current source by feeding an ignition coil connected to the spark plug.

Abstract: A digital display doppler radar unit has a moving mode and a stationary mode. The incoming doppler signal, which in the moving mode, represents both speed of the radar platform and speed of an approaching target vehicle, is separated into two signal components by selective filtering. One component represents the sum of the ground speeds for the radar platform and approaching vehicles. A time base is generated by a crystal control means and the time base is utilized for correlating the received doppler signals, indicative of speed, with the time base. Each doppler signal component is converted to binary coded decimal (BCD) information and a digital counter counts the cycles of each reeived doppler signal and compares the count with an amount previously stored. Circuit means are provided to validate the received doppler signal, allowing their continual processing only after a preselected number of valid comparisons are made.

Abstract: A digital display doppler radar unit has a moving mode and a stationary mode. The incoming doppler signal, which in the moving mode, represents both speed of the radar platform and speed of an approaching target vehicle, is separated into two signal components by selective filtering. One component represents the sum of the ground speeds for the radar platform and approaching vehicles. A time base is generated by a crystal control means and .[.the time base.]. is utilized for correlating the received doppler signals, indicative of speed, with the time base. Each doppler signal component is converted to binary coded decimal (BCD) information and a digital counter counts the cycles of each received doppler signal and compares the count with an amount previously stored. Circuit means are provided to validate the received doppler signal, allowing their continual processing only after a preselected number of valid comparisons are made.