Abstract: In the present legacy electrical power generation and distribution system, the power quality delivered to end consumers is being degraded by a number of disruptive technologies and legislative impacts; especially with the rapidly increasing myriad of privately owned and operated domestic and commercial distributed energy generation (DEG) devices connected at any point across a low voltage (LV) distribution network. The present invention bypasses this increasing critical DEG problem by offering a solution comprising an energy processing unit (EPU) that is installed at the customer's electrical power point of use (POU). And because of the controlled tightly voltage regulated output of the EPU, significant energy savings can be achieved through dynamic voltage control, utilizing the CVR effect, reduced reactive power demand, and reduced or eliminated peak demand billings.

Abstract: Systems, methods, and apparatuses for adjusting and repositioning a coiled tubing tensioning device while deployed. The system comprises a tubing guide for receiving a coiled tubing, a tensioning device for maintaining the coiled tubing in tension, and a tower frame having a moveable platform supporting the weight of the tensioning device. The moveable platform is adjustable vertically to raise and lower the tensioning device with respect to the tower frame, and the tower frame permits the tensioning device to move horizontally with respect to a fixed ground point.

Abstract: According to one embodiment, a media system communicates with an aggregate device that includes multiple media output devices. When providing media data for presentation, the system adjusts for device clock drift by resampling the media data provided to a media output device based at least in part on a device clock rate difference between a device clock of one of the media output devices and a device clock of another of the media output devices.

Abstract: A conveyor chain includes first link, a second link, a connecting link, a first flight, and a second flight. The first link includes a first side portion and a second side portion. The first side portion has apertures and a first drive pin disposed between the apertures. The first drive pin is configured to be driven by a first sprocket. The second side portion has apertures and a second drive pin disposed between the apertures and extending in a direction opposite the first drive pin. The second drive pin is configured to be driven by a second sprocket. The second link includes a first side portion and a second side portion. The first flight is cast integrally with an end of the first drive pin of the first link, and the second flight is cast integrally with an end of the second drive pin of the first link.

Abstract: A drive mechanism for a chain conveyor includes an elongated shaft that extends along an axis and is configured to be driven to rotate by a motor. A sprocket is integrally formed with the shaft. The sprocket includes a plurality of lobes that extend around a perimeter of the shaft. Each lobe is spaced apart from an adjacent lobe by a recessed portion. Each of the recessed portions is configured to receive a drive pin of the chain conveyor.

Abstract: A link for a conveyor chain includes a first portion and a second portion laterally spaced apart from the first portion. The first portion includes a first sprocket-engaging pin, and the second portion includes a second sprocket-engaging pin. The first sprocket-engaging pin and the second sprocket-engaging pin protrude laterally away from one another. The first sprocket-engaging pin and the second sprocket-engaging pin may each have an oblong cross-section. At least one retainer can secure a connecting pin against movement relative to at least one of the first portion and the second portion, and each retainer can be positioned substantially within one of the first portion and the second portion.

Abstract: A conveyor chain includes a first link, a second link, and a coupler link. The first link includes a first sprocket-engaging portion and a second sprocket-engaging portion, each protruding laterally away from one another. The second link includes a first sprocket-engaging portion and a second sprocket-engaging portion, each protruding laterally away from one another. The coupler link couples the first link to the second link, and the coupler link is positioned laterally between the first sprocket-engaging portion and the second sprocket-engaging portion of each link. The coupler link includes a first joint pivotably coupled to the first link and a second joint pivotably coupled to the second link. The first joint permits pivoting movement of the first link about a plurality of axes, and the second joint permits pivoting movement of the second link about a plurality of axes.

Abstract: A conveyor chain includes first link, a second link, a connecting link, a first flight, and a second flight. The first link includes a first side portion and a second side portion. The first side portion has apertures and a first drive pin disposed between the apertures. The first drive pin is configured to be driven by a first sprocket. The second side portion has apertures and a second drive pin disposed between the apertures and extending in a direction opposite the first drive pin. The second drive pin is configured to be driven by a second sprocket. The second link includes a first side portion and a second side portion. The first flight is cast integrally with an end of the first drive pin of the first link, and the second flight is cast integrally with an end of the second drive pin of the first link.

Abstract: A linkage for moving material from a first end of a conveyor toward a second end of the conveyor includes a first link and a second link. The first link includes a first side edge and a first indicator. The second link includes a second side edge and a second indicator. The second link is coupled to the first link such that the first side edge of the first link overlaps with the second side edge of the second link. Elongation of the first link in the direction of movement causes the first indicator to move relative to the second indicator, and a position of the first indicator relative to the second indicator provides an indication of a wear condition of the first link. In some aspects, a first surface and/or a second surface of one of the links includes a wear indicator representing a surface wear condition.

Abstract: In some aspects, a conveyor chain includes a first link, a second link, and a coupler link coupled between the first link and the second link. The first link includes a first portion and a second portion, the second portion oriented parallel to and laterally spaced apart from the first portion. The first portion includes a first sprocket-engaging pin protruding laterally, and the second portion includes a second sprocket-engaging pin protruding laterally. The second link includes a first portion and a second portion. The first portion includes a first sprocket-engaging portion protruding laterally, and the second portion includes a second sprocket-engaging portion protruding laterally. A flight bar is positioned adjacent an end of the first sprocket-engaging portion of the first link.

Abstract: Audio Frequency Load Control (AFLC) signal processing electronics added to a power factor correction (PFC) unit allowing the AFLC system to operate without the need of large and heavy passive bypass or blocking filters at the PFC installations. The AFLC signal processing electronics a first group of additional electronics tuned to the AFLC frequency for detecting the AFLC carrier signal; and a second group of additional electronics for driving an AFLC impedance switch that is connected in parallel with an AFLC impedance. The AFLC impedance is connected in series with the PFC capacitors, and is sufficiently large to offer significant impedance in series with the PFC capacitors that allows the AFLC signal to bypass the PFC unit.

Abstract: A device for moving a load is provided. The device includes a platform defining a surface and an edge extending downward therefrom. The device further includes two pairs of opposing legs each defining a top portion pivotally engaged with the platform interior of the edge, wherein each pair of legs has an extended position where each leg extends away from the edge. Each pair of legs further includes a collapsed position where the top portion of each leg extends substantially parallel and interior to the edge, a middle portion of each leg extends through a corresponding slot defined by the edge, and a bottom portion of each leg extends substantially parallel and exterior to the edge.

Abstract: A high-efficiency system for conducting power factor (PF) and harmonics correction in an electrical network, comprising a controller; a digital PFC capacitor array comprising two or more passive PFC capacitors, providing fine steps increments in the PF correction; and linear PFC capacitor arrays, providing coarse steps increments in the PF correction. The PF correction in coarse steps increments and fine steps increments allow a total or near total PF correction without overcompensation. Optionally, the system further comprises a lower power active power filter (APF) configured to only target and eliminate or minimize harmonics in the electrical network.

Abstract: An energy saving alternate current (AC) series voltage regulator comprises an AC high frequency (HF) series voltage buck power regulator, a bypass contactor (K1), a bidirectional AC semiconductor device (S1) connected in parallel with the bypass contactor and a control circuitry. Under the condition of an input AC mains voltage (Vin) drops below a specified and set optimum energy savings voltage or a lower selected voltage point, the control circuitry transitions both the slow bypass contactor and the fast bidirectional AC semiconductor device, then the AC high frequency (HF) series voltage buck power regulator are switched out to save the AC high frequency (HF) series voltage buck power regulator internal power electronics usage. Under this condition, the lower input AC mains voltage is directly delivered to an electrical load by the contactor bypass system, hence achieving more energy savings.

Abstract: According to one embodiment, a media system communicates with an aggregate device that includes multiple media output devices. When providing media data for presentation, the system adjusts for device clock drift by resampling the media data provided to a media output device based at least in part on a device clock rate difference between a device clock of one of the media output devices and a device clock of another of the media output devices.

Abstract: Legacy automatic variable capacitor KVAR compensation systems typically use either electromechanical devices such as relays or contactors of various forms and types to switch the selected capacitors in and out of the electrical system under some form of electronic control. These systems are slow and discontinuous in their ability to closely regulate the exact value of compensatory capacitance needed to compensate the variable and rapidly changing reactive power KVAR in the electrical power transmission and distribution networks. The present invention provides a fast response active KVAR compensator based on a variable transimpedance topology.

Abstract: Audio Frequency Load Control (AFLC) signal processing electronics added to a power factor correction (PFC) unit allowing the AFLC system to operate without the need of large and heavy passive bypass or blocking filters at the PFC installations. The AFLC signal processing electronics a first group of additional electronics tuned to the AFLC frequency for detecting the AFLC carrier signal; and a second group of additional electronics for driving an AFLC impedance switch that is connected in parallel with an AFLC impedance. The AFLC impedance is connected in series with the PFC capacitors, and is sufficiently large to offer significant impedance in series with the PFC capacitors that allows the AFLC signal to bypass the PFC unit.

Abstract: Legacy automatic variable capacitor KVAR compensation systems typically use either electromechanical devices such as relays or contactors of various forms and types to switch the selected capacitors in and out of the electrical system under some form of electronic control. These systems are slow and discontinuous in their ability to closely regulate the exact value of compensatory capacitance needed to compensate the variable and rapidly changing reactive power KVAR in the electrical power transmission and distribution networks. The present invention provides a fast response active KVAR compensator based on a variable transimpedance topology.

Abstract: A device for moving a load is provided. The device includes a platform defining a surface and an edge extending downward therefrom. The device further includes two pairs of opposing legs each defining a top portion pivotally engaged with the platform interior of the edge, wherein each pair of legs has an extended position where each leg extends away from the edge. Each pair of legs further includes a collapsed position where the top portion of each leg extends substantially parallel and interior to the edge, a middle portion of each leg extends through a corresponding slot defined by the edge, and a bottom portion of each leg extends substantially parallel and exterior to the edge.

Abstract: An AC voltage regulator that regulates the output AC voltage level regardless of the varying AC input voltage utilizing high frequency series inductors that only process a proportion of the total output power and uses unipolar semiconductor low loss switches in series with one or more rectifiers.