Abstract: A device may receive explicit congestion notification data associated with user devices connected to a network of network devices, and may receive network data identifying network metrics associated with the network devices. The device may generate an active queue management mapping table based on utilizing a model to process the explicit congestion notification data and the network data. The device may determine, based on the active queue management mapping table and the network data, a routing table that includes routing data identifying traffic paths with active queue management enabled network devices and without non-active queue management enabled network devices of the network devices. The device may provide the routing table to the network devices.

Abstract: The present invention provides a trimmer line for a grass trimmer. The trimmer line is comprised of a cutting string having a cutting end and an engagement end. An engagement device is affixed to the engagement end of the cutting string and has an expanded position and an install position. When the engagement device is in its expanded position, it has a greater outer diameter than in its install position.

Abstract: A method and apparatus for controlling the operation of an oil well pumping unit in which the prime mover is a polyphase AC electric motor. The system comprises means for generating a plurality of signals representative of motor fault parameters including a motor winding overtemperature fault, undervoltage fault, and a phase imbalance fault. Upon occurence of a fault, a contactor in the motor supply leads is open to shut down the motor. After such shutdown because of undervoltage or phase imbalance faults the fault parameters are continuously scanned and once the fault has been cleared the motor is restarted. Where motor shutdown occurs because of an over temperature fault, the motor is maintained in a latched off shut down condition until an operator implemented reset occurs. An accessible counting memory is provided having separate registers for each of the fault conditions.

Abstract: A heavy metal separator for removing heavy metal particles and flakes from ore. It has a feed hopper which feeds a slurry of ore over an inclined screen in a separation chamber. The smaller particles pass through the screen into a second section of the separation chamber. The larger particles wave downwardly off the lower end of the screen into a first section of the separation chamber. A stream of water is directed by baffles upward through the second section counter current to the flow of materials. The water washes the less dense waste material out of the second section into the first section. The fine heavy metal particles and flakes, being more dense, settle downwardly to a collection point at the bottom of the second section. The larger concentrates and fine waste material move downwardly through the first section to an outlet, where they pass into a second separation chamber.