Abstract: The present disclosure relates to an antenna system for wireless communication of data. In one implementation, the system includes at least four horn antennas. Each horn antenna may have a three-layered cavity, and each layer may be filled with dielectric. The system may further include two microstrip line networks. The microstrip networks may be between two adjacent layered portions and configured to communicate with the horn antennas.

Abstract: An antenna system for wireless communication of data includes at least two antenna modules constructed from a plurality of electrically-conductive layers and a first waveguide network configured to communicate data with the at least two antenna modules. Each antenna module includes at least two radiating elements. Each radiating element is configured to support communications at a first polarization and a second polarization that are orthogonal to one another. Each antenna module also includes a first microstrip line network configured to communicate with the at least two radiating elements at the first polarization and a second microstrip line network configured to communicate with the at least two radiating elements at the second polarization. At least one of the electrically-conductive layers is located between the first and second microstrip line networks.

Abstract: An antenna system for wireless communication of data includes at least four horn antennas. Each horn antenna is configured to support communications at two mutually orthogonal linear polarizations. Each horn antenna includes an inner wall enclosing a space and geometric constrictions each protruding inwardly from the inner wall into the space along a corresponding polarization plane of one of the two linear polarizations. At least one of the inner wall or the geometric constrictions has a stepped structure.

Abstract: Systems and methods for automated fault detection in a building management system are shown and described. The systems and methods further involve organizing the data set into bins, each bin containing a plurality of the observed points for the variable of the building management system. The systems and methods further involve calculating, for each bin, a target parameter and an estimator of scale for the observed points. The systems and methods further involve detecting, for each bin, an outlier of the building management system by comparing a data point of the bin to the calculated target parameter and estimator of scale for the bin.

Abstract: An antenna system for wireless communication of data includes at least four horn antennas. Each horn antenna is configured to support communications at two mutually orthogonal linear polarizations. Each horn antenna includes an inner wall enclosing a space and geometric constrictions each protruding inwardly from the inner wall into the space along a corresponding polarization plane of one of the two linear polarizations. At least one of the inner wall or the geometric constrictions has a stepped structure.

Abstract: An antenna system for wireless communication of data includes at least two antenna modules constructed from a plurality of electrically-conductive layers and a first waveguide network configured to communicate data with the at least two antenna modules. Each antenna module includes at least two radiating elements. Each radiating element is configured to support communications at a first polarization and a second polarization that are orthogonal to one another. Each antenna module also includes a first microstrip line network configured to communicate with the at least two radiating elements at the first polarization and a second microstrip line network configured to communicate with the at least two radiating elements at the second polarization. At least one of the electrically-conductive layers is located between the first and second microstrip line networks.

Abstract: An antenna system for wireless communication of data includes at least four horn antennas. Each horn antenna is filled with dielectric.

Abstract: An antenna for broadband satellite communication including an array of primary horn antenna elements which are connected to one another by a waveguide feed network.

Abstract: Systems and methods for automated fault detection in a building management system are shown and described. The systems and methods further involve organizing the data set into bins, each bin containing a plurality of the observed points for the variable of the building management system. The systems and methods further involve calculating, for each bin, a target parameter and an estimator of scale for the observed points. The systems and methods further involve detecting, for each bin, an outlier of the building management system by comparing a data point of the bin to the calculated target parameter and estimator of scale for the bin.

Abstract: An antenna for broadband satellite communication including an array of primary horn antenna elements which are connected to one another by a waveguide feed network.

Abstract: A moveable gate for infants or dogs is used in doorways, hallways, stair landings and other household positions to provide a safe barrier for the child or dog. The gate, formed of a flexible material which pulls out of a housing in the manner of a window shade, has a jamb mounting at the housing end and a latch at the extended end of the curtain-like barrier. Both are releasable from a fixture which attaches to the door jamb, wall or stair rail post, so that the infant gate can be quickly released and moved to another location in the house where additional such jamb mountings are attached or to another house which has similar door jamb pieces installed. Important features are the manner in which the gate latches, a mechanism for tightening the curtain-like barrier into a nearly solid gate after it has been latched, and childproof devices for releasing tension in the gate when it is to be retracted.

Abstract: A threaded fastener having a self tool movable from an operable position to an out-of-the-way position which includes a threaded shaft, a laterally expanded head having a cavity beneath it surrounding the shaft, holes in either side of the expanded head, a D-ring having its opposite ends in the holes through the sides of the head, and an elastomeric ring such as an O-ring surrounding the threaded shaft and extending partly into the cavity so that when the threaded fastener is screwed into a threaded opening to receive it the O-ring is forced into the cavity when the fastener is tightened providing enough friction to hold the D-ring in its out-of-the-way position. If the object being held with the threaded fastener has a circular cavity having a diameter greater than the diameter of the D-ring, the D-ring, in its out-of-the-way position, will also lie in that recess where it will not interfere with the use of the object being held with the threaded fastener.

Abstract: Transport apparatus is provided for heavy duty equipment which allows for the interchangeable connection of the caterpillar power drive units used for transport of a plurality of supporting frames holding different pieces of heavy equipment. A lesser number of expensive drive units is required for moving a lot of equipment. This is achieved by providing separate support bases or feet for each of the supporting frames. Each of the bases include a mechanism for lifting the supporting frames so that the power drive units can move under the supporting frame being transported. Also, each of the caterpillar power drive units include a connector device for connection to the supporting frame to be supported. Each connector device, in turn, includes hydraulically operated arms for relative vertical displacement between the drive unit and the support frame and universal relative horizontal displacement.