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| Number | Title | Issue Date |
| 4540985 | Angle width discriminator/altitude line detector radar A pulse radar for acquiring a target while rejecting the altitude line is described wherein a plurality of target reports from a scanning antenna are examined and rejected if the pattern of target reports at an apparent range extends along a scanning angl... | 09/10/1985 |
| 4118670 | Image phased and idler frequency controlled mixer formed on an integrated circuit dielectric substrate The tuned elements of a mixer organization are fabricated as slot-type microwave integrated circuit (MIC) elements formed by selected masking or etching of a continuous ground plane layer of conductor material on one side of an integrated circuit dielectr... | 10/03/1978 |
| 4075867 | Compact refrigeration unit A compact refrigeration unit supported by a generally rectilinear frame structure with front and back frame members having their axial planes spaced apart along the long axis of the frame is provided with a first selectively energized prime mover position... | 02/28/1978 |
| 4059842 | Method and apparatus for synchronizing a digital divider chain with a low frequency pulse train A method and apparatus for synchronization of a digital divider chain with a low frequency reference pulse train is embodied in the form of all digital circuit apparatus suitable for fabrication by state of the art high density packaging techniques such a... | 11/22/1977 |
| 4058429 | Infrared temperature control of Czochralski crystal growth A method and apparatus for controlling the diameter of single crystals grown by the Czochralski process in which an infrared sensor determines the temperatures of the melt adjacent to the crystal and a control circuit compares an average of these temperat... | 11/15/1977 |
| 4056792 | Wideband diode switched microwave phase shifter network A diode switched microwave phase shifter network consists of a series of alternate path, phase increment stages. The diodes which control direction of current through the alternate paths are all commonly poled so that a single D.C. diode forward biased so... | 11/01/1977 |
| 4047046 | Circuit for setting magnetic remanence in a magnetizable core A circuit for selectively variably setting the magnetic remanence in a magnetizable core employs flux circuit feedback, including feedback initiating a self-blocking oscillator type of operation, to achieve designs of two or three (as the designer may des... | 09/06/1977 |
| 4044357 | FM/CW radar including a novel receiver protector of general utility An FM/CW radar system which uses a single duplexed antenna, in which high degree of isolation of the transmission signal from the receiver is provided by passive power limiter devices employing the subsidiary resonance mode of narrow linewidth ferrite mat... | 08/23/1977 |
| 4041491 | Method and apparatus for determining the altitude of a signal propagation path A method and apparatus for determining the altitude of a transmitted signal by adding the altitude of the transmitting antenna to accumulated changes in altitude, determined in relation to the sine function of the elevation angle of the propagation path. ... | 08/09/1977 |
| 4040054 | Tracking of radar signals Tracking apparatus which includes a plurality of trackers and a single track loop for tracking a plurality of radar threats or threat signals on a time-shared or time-multiplexed basis. The trackers cooperate with a receiver and a processor which processe... | 08/02/1977 |
| 4025920 | Identification of radar systems There is disclosed apparatus for, and a method of identifying radar signals from selected of their parameters, such as azimuth, instantaneous frequency, pulse duration and the like, so that countermeasures may be initiated. Since the signals are sensed fr... | 05/24/1977 |
| 4010472 | Antenna scanning apparatus A feed which is stationary relative to a parabolic reflector is located in close proximity to a prime focus of the reflector along its central axis. A moving element which is opaque to r.f. energy is moved along a path of revolution about the reflector ax... | 03/01/1977 |
| 3991361 | Semi-automatic compass calibrator apparatus for a vehicle mounted flux gate compass system to cancel out effect of local magnetic disturbances Method and apparatus for determining and applying a feedback current to the two sense windings of a vehicle mounted flux gate compass in order to provide a compensating magnetic field to cancel out the effect of local magnetic disturbance field(s) produce... | 11/09/1976 |
| 3978685 | Means for trapping oil lost during startup of refrigerant compressors This invention relates to a compression refrigeration system having means for removing some of the oil refrigerant foam which is formed in a crankcase at startup. The removal of foam with entrained oil from the crankcase is to reduce the amount of oil pum... | 09/07/1976 |
| 3978684 | Refrigeration system The invention relates to a system that can provide the refrigeration function of a compression refrigeration system, or by changing the position of some valves in the system, the system can provide a defrost function, or a heating function, or a capacity ... | 09/07/1976 |
| 3973618 | Electronic capacity control or direct expansion refrigeration of air conditioning systems The invention relates to the air conditioning of a storage compartment and is especially significant for a transport system. Air is circulated between an air tempering zone and the storage compartment, said air tempering zone having air cooling means and ... | 08/10/1976 |
| 3953666 | Television system for simultaneously transmitting and receiving a plurality of independent pictures on a single carrier screen Apparatus for transmitting and receiving a plurality of separate pictures or scenes on a single television carrier signal such that a different picture appears in each quadrant of a television receiving tube, and including means for blanking out all but o... | 04/27/1976 |
