Abstract: A vibration generating mechanism for a screen box includes a drive shaft arranged to be rotatably driven by a drive motor, at least one first eccentric out-of-balance weight fixed with respect to the drive shaft for rotation therewith and at least one second eccentric out-of-balance weight coupled to the drive shaft via gearing. The first and second out-of-balance weights rotate in opposite directions when driven by the drive shaft.

Abstract: A screening apparatus comprising a body, a drive system for imparting vibrations to the body, and screen media that is coupled to the body by a resilient coupling mechanism that allows oscillatory movement of the screen media with respect to the body. In response to vibration of the body, the resilient coupling mechanism causes the screen media to oscillate in a manner that is amplified with respect to the vibration of the body. The amplification may depend on the frequency of the vibrations of the body and/or on the mass of any material gathered on the screen media.

Abstract: A vibration generating mechanism for a screen box includes a drive shaft arranged to be rotatably driven by a drive motor, at least one first eccentric out-of-balance weight fixed with respect to the drive shaft for rotation therewith and at least one second eccentric out-of-balance weight coupled to the drive shaft via gearing. The first and second out-of-balance weights rotate in opposite directions when driven by the drive shaft.

Abstract: A vibration generating mechanism for a screen box includes a drive shaft arranged to be rotatably driven by a drive motor, at least one first eccentric out-of-balance weight fixed with respect to the drive shaft for rotation therewith and at least one second eccentric out-of-balance weight coupled to the drive shaft via gearing. The first and second out-of-balance weights rotate in opposite directions when driven by the drive shaft.

Abstract: A screening bar assembly for a screen, the assembly comprising a plurality of substantially parallel screening bars mounted to a substantially rectangular support frame; a compliant mounting block being provided at each end of each screening bar to engage the support frame and a screen incorporating said assembly.

Abstract: A vibratory drive system, suitable for a material screening apparatus, includes rotatable drive shafts each having a centre of mass offset from its rotational axis. A respective drive mechanism is coupled to each drive shaft and is controlled by a controller. The controller adjusts the relative rotational speed of the drive shafts to adjust the relative angular position of the respective centre of mass of the drive shafts. This adjustment allows the vibratory characteristics of the drive system to be changed without having to halt the drive system.

Abstract: A wastewater treatment device including: a vessel having an inlet for receiving an influent stream; and a separator disposed within the vessel. The wastewater treatment device further including: a grit pot connected to the separator; a level sensor configured to output a signal indicative of the level of grit within the grit pot; one or more fluidizing nozzles disposed within the grit pot and configured to deliver a jet of fluid from a fluid supply to fluidize grit accumulated on the lower surface of the grit pot; an extraction outlet connected to a pump for extracting grit fluidized by the fluidizing nozzles; and a controller in communication with the level sensor, wherein the controller and the pump are configured to activate the fluidizing nozzles based on the signal received from the level sensor. There is also described a wastewater treatment device including: a vessel having an inlet for receiving an influent stream; and a separator disposed within the vessel.

Abstract: A device to assist in moving a water heater is provided. The device comprises at least one socket having a threaded portion configured to be received by a corresponding threaded portion of at least one of an inlet nozzle or an outlet nozzle of the water heater. The at least one socket comprises the threaded portion formed on an external surface of the socket or an internal surface of the socket. Further, the device comprises a handle integrally formed with the at least one socket and configured to receive a hand of a user, to allow the user to grasp the device for moving the water heater. The handle is fabricated to have a rectangular shape, a semi-circular shape or a semi-hexagonal shape. Moreover, the handle comprises a cavity for receiving the hand of the user to allow the user to grasp the device.

Abstract: In certain aspects, a comparator includes a first inverter having an input, an output, and a voltage supply input, wherein the input of the first inverter and the output of the first inverter are coupled together, and the voltage supply input of the first inverter is configured to receive a first compare voltage. The comparator also includes a second inverter having an input, an output, and a voltage supply input, wherein the input of the second inverter is coupled to the output of the first inverter, and the voltage supply input of the second inverter is configured to receive a second compare voltage.

Abstract: A vibratory drive system comprises a rotatable drive shaft and an out-of-balance wheel that is coaxial with and rotatable relative to the drive shaft. A rotary transmission system couples the drive shaft to the wheel in order to transmit rotational movement of the drive shaft to the wheel. The rotary transmission system comprises a shaft gear, a wheel gear, and intermediate gears coupling the shaft gear to the wheel gear. The intermediate gears are carried by a gear carrier that is rotatable relative to the drive shaft, and are rotatable with respect to the gear carrier. The arrangement allows the phase angle of the out-of-balance wheel to be adjusted with respect to the drive shaft.

Abstract: Aspects of the disclosure are directed to saving always on (AON) routing of signals across chips, the disclosure includes turning ON a first power signal in a system on a chip (SOC) when a Power ON Reset (PoR) signal is asserted and a clamp control signal is asserted; turning ON a second power signal in the SOC after the first power signal is turned ON; de-asserting the PoR signal after the second power signal is turned ON; latching a logic signal with a LOW clamp keeper cell if the logic signal is at a LOW logic level or with a HIGH clamp keeper cell if the signal is at a HIGH logic level; and de-asserting the second power signal while a first section of the SOC routes the logic signal through a second section of the SOC.

Abstract: In certain aspects, a comparator includes a first inverter having an input, an output, and a voltage supply input, wherein the input of the first inverter and the output of the first inverter are coupled together, and the voltage supply input of the first inverter is configured to receive a first compare voltage. The comparator also includes a second inverter having an input, an output, and a voltage supply input, wherein the input of the second inverter is coupled to the output of the first inverter, and the voltage supply input of the second inverter is configured to receive a second compare voltage.

Abstract: A power multiplexer system including a power mux controller, wherein the power mux controller generates at least one non-regulated control signal; a regulator coupled to the power mux controller, wherein the regulator generates a reference voltage and wherein the reference voltage is used for generating a regulated control signal; and at least one power multiplexer tile coupled to the regulator, wherein each of the at least one power multiplexer tile includes a first branch comprising a first plurality of transistors and a second branch comprising a second plurality of transistors, and wherein enabling or disabling one or more of the first plurality of transistors is based on either the at least one non-regulated control signal or the regulated control signal.

Abstract: A vibratory drive system comprises a rotatable drive shaft and an out-of-balance wheel that is coaxial with and rotatable relative to the drive shaft. A rotary transmission system couples the drive shaft to the wheel in order to transmit rotational movement of the drive shaft to the wheel. The rotary transmission system comprises a shaft gear, a wheel gear, and intermediate gears coupling the shaft gear to the wheel gear. The intermediate gears are carried by a gear carrier that is rotatable relative to the drive shaft, and are rotatable with respect to the gear carrier. The arrangement allows the phase angle of the out-of-balance wheel to be adjusted with respect to the drive shaft.

Abstract: A vibratory drive system, suitable for a material screening apparatus, includes rotatable drive shafts each having a centre of mass offset from its rotational axis. A respective drive mechanism is coupled to each drive shaft and is controlled by a controller. The controller adjusts the relative rotational speed of the drive shafts to adjust the relative angular position of the respective centre of mass of the drive shafts. This adjustment allows the vibratory characteristics of the drive system to be changed without having to halt the drive system.

Abstract: A screening apparatus comprising a body, a drive system for imparting vibrations to the body, and screen media that is coupled to the body by a resilient coupling mechanism that allows oscillatory movement of the screen media with respect to the body. In response to vibration of the body, the resilient coupling mechanism causes the screen media to oscillate in a manner that is amplified with respect to the vibration of the body. The amplification may depend on the frequency of the vibrations of the body and/or on the mass of any material gathered on the screen media.

Abstract: Aspects of the disclosure are directed to saving always on (AON) routing of signals across chips, the disclosure includes turning ON a first power signal in a system on a chip (SOC) when a Power ON Reset (PoR) signal is asserted and a clamp control signal is asserted; turning ON a second power signal in the SOC after the first power signal is turned ON; de-asserting the PoR signal after the second power signal is turned ON; latching a logic signal with a LOW clamp keeper cell if the logic signal is at a LOW logic level or with a HIGH clamp keeper cell if the signal is at a HIGH logic level; and de-asserting the second power signal while a first section of the SOC routes the logic signal through a second section of the SOC.

Abstract: A vibration generating mechanism for a screen box includes a drive shaft arranged to be rotatably driven by a drive motor, at least one first eccentric out-of-balance weight fixed with respect to the drive shaft for rotation therewith and at least one second eccentric out-of-balance weight coupled to the drive shaft via gearing. The first and second out-of-balance weights rotate in opposite directions when driven by the drive shaft.

Abstract: A screening bar assembly for a screen, the assembly comprising a plurality of substantially parallel screening bars mounted to a substantially rectangular support frame; a compliant mounting block being provided at each end of each screening bar to engage the support frame and a screen incorporating said assembly.

Abstract: A clamp for internally coupling and decoupling two components can include a base fittable within an interior of at least one of two components to be coupled together. The clamp can also include an engagement member movably supported about the base. The engagement member can interface with and engage interior portions of the two components when in a coupled position separated from the interior portions of the two components when in a decoupled position. The clamp can further include a wedge movably supported about the base to facilitate movement of the engagement member between the coupled and the decoupled positions. In addition, the clamp can include a secure and release mechanism operable with the base and the wedge to alternately secure the wedge to maintain the engagement member in the coupled position and release the wedge to facilitate movement of the engagement member to the decoupled position.