Abstract: A hot tub vacuum attachment apparatus for cleaning debris from a hot tub utilizing the integrated pump system includes an attachment head to selectively engage a filter housing of a hot tub or pool. A tubular stem has a stem outlet end coupled to, and in fluid communication with, the attachment head. A filter mount is coupled to the tubular stem. The filter mount has an output end coupled to a stem inlet end of the tubular stem, an input end, and a filter receiver coupled between the output end and the input end. A filter system is coupled the filter receiver of the filter mount. All fluid flowing from the input end to the output end passes through the filter system to collect particles and debris. A flexible hose has a hose proximal end coupled to the input end of the filter mount and a hose distal end.

Abstract: In one aspect there is provided a ram block inner seal assembly comprising a core member having a top face, a bottom face, a front face, a rear face, and two side faces. A connector portion connects the top and bottom faces. A peripheral member surrounds the front, rear and side faces. The core member further comprises a peripheral groove on at least the front and side faces, the peripheral groove having a cross-sectional profile. The peripheral member further comprises an energizing section that has a cross-sectional profile which substantially matches the cross-sectional profile of the peripheral groove.

Abstract: A method for estimating at least one ring-related parameter related to at least one piston ring may include estimating a bore distortion of a cylinder bore. The bore distortion may include a plurality of bore distortions corresponding to a plurality of respective piston locations within the cylinder bore. The method may also include receiving the bore distortion in a ring performance model configured to dynamically estimate a plurality of ring-related parameters associated with combustion in the cylinder bore during operation of the internal combustion engine. The ring performance model may be configured to receive a static data signal indicative of static parameters and a dynamic data signal indicative of dynamic parameters related to operation of the internal combustion engine. The ring performance model may be configured to estimate at least one ring-related parameter related to at least one piston ring during operation of the internal combustion engine.

Abstract: This disclosure relates to a sleeve for repairing or reconstructing a frame rail of a motor vehicle. An exemplary repair sleeve includes a base wall, first and second side walls projecting from opposite sides of the base wall, and a sectioned wall including first and second sections spaced-apart from one another such that the two side walls are moveable relative to one another in a pre-installed condition.

Abstract: A system for monitoring manufacturing includes one or more sensors and a controller in communication with the one or more sensors. The controller may include one or more processors that determine a quality metric represented by machine data collected from one or more machine data sensors and identify a correlation value between the machine data and environmental data collected from one or more environmental data sensors. The controller may further include determine if the correlation value exceeds a predetermined threshold value, and if the correlation value exceeds the predetermined threshold value, report at least one of the correlation value and the quality metric.

Abstract: A modular necktie includes a knot enclosure having an attachment channel, a fabric stem that is configured to insert into the attachment channel, and a tie portion that is secured to the fabric stem such that the tie portion extends downwardly from the knot enclosure when the fabric stem is inserted into the attachment channel. The knot enclosure can couple to a wearer's shirt in various ways including via a recess that is configured to receive a button of a wearer's shirt or via lateral collar wings that allow a collar band or ratcheting strips to be used. Various types of electronic components can be included in the knot enclosure.

Abstract: This disclosure relates to pole bases, specifically to light pole base cabinets that can house items. The pole base cabinets can be positioned between a light pole and a footing. The pole base cabinets provide a base to a light pole while adding additional functionality. The cabinets can include a main opening allowing access to a cavity in which items can be stored. Access to the cavity can be restricted with a door that uncovers and covers the main opening. The pole base cabinets can include support panels, internal stiffening panels, external stiffening panels, support tabs, flanges, tabs, a peripheral wall, and other features to provide structural support and enclose the contents in the pole base cabinet.

Abstract: A position sensor employing silicon photodiodes formed from trapezoidal chips mounted on a printed circuit board detects angular positions of a rotor shaft within a galvanometer-based optical scanner.

Abstract: This disclosure relates to pole bases, specifically to light pole base cabinets that can house items. The pole base cabinets can be positioned between a light pole and a footing. The pole base cabinets provide a base to a light pole while adding additional functionality. The cabinets can include a main opening allowing access to a cavity in which items can be stored. Access to the cavity can be restricted with a door that uncovers and covers the main opening. The pole base cabinets can include support panels, internal stiffening panels, external stiffening panels, support tabs, flanges, tabs, a peripheral wall, and other features to provide structural support and enclose the contents in the pole base cabinet.

Abstract: An electrical power conversion system includes an alternating current (AC)-to-direct current (DC) power converter that is configured to convert power between AC power and DC power. The AC-to-DC power converter includes switching legs that each connect to a phase of the AC power. Each of the switching legs includes two electronic devices connected in series with one another between a positive DC bus terminal and a negative DC bus terminal. The electrical power conversion system also includes a DC-to-DC power converter that is configured to convert power between the DC bus power and DC terminal power via a positive DC terminal and a negative DC terminal. The DC-to-DC power converter is configured to control a differential voltage between the positive and negative DC terminals and a common-mode voltage that is between a neutral of the AC power and each of the positive and negative DC terminals.

Abstract: The subject technology is related to methods and apparatus for discretization and manufacturability analysis of computer assisted design models. In one embodiment, the subject technology implements a computer-based method for the reception of an electronic file with a digital model representative of a physical object. The computer-based method determines geometric and physical attributes from a discretized version of the digital model, a cloud point version of the digital model, and symbolic functions generated through evolutionary algorithms. A set of predictive machine learning models is utilized to infer predictions related to the manufacture process of the physical object.

Abstract: A method of applying a gas-impermeable coating includes forming a polyelectrolyte complex suspension. The polyelectrolyte complex suspension is applied to a substrate. The substrate having the polyelectrolyte complex applied theron is treated. The treating reduces salt content of the polyelectrolyte complex.

Abstract: This disclosure relates to pole bases, specifically to light pole base cabinets that can house items. The pole base cabinets can be positioned between a light pole and a footing. The pole base cabinets provide a base to a light pole while adding additional functionality. The cabinets can include a main opening allowing access to a cavity in which items can be stored. Access to the cavity can be restricted with a door that uncovers and covers the main opening. The pole base cabinets can include support panels, internal stiffening panels, external stiffening panels, support tabs, flanges, tabs, a peripheral wall, and other features to provide structural support and enclose the contents in the pole base cabinet.

Abstract: A configurable power converter includes a chassis, a plurality of circuit terminals, power conversion hardware, and a controller. The chassis has an exterior and defines an interior cavity. The plurality of circuit terminals are coupled to the exterior of the chassis. The power conversion hardware is disposed within the interior cavity of the chassis and connected to the plurality of circuit terminals. The power conversion hardware includes at least one of a plurality of electrical switches, a plurality of capacitors, or a plurality of inductors.

Abstract: The invention relates to a method for recovering precious metals from electronic waste utilising biometallurgical techniques. In one aspect, a method of recovering one or more target metals from electronic waste, includes (a) removing at least a portion of non-target material from the electronic waste or grinding to a preselected size particle to give pre-processed electronic waste; (b) contacting the pre-processed electronic waste with a lixiviant such that at least a portion of the target metal(s) dissolve into the lixiviant to produce a pregnant solution; (c) contacting a microorganism with the pregnant solution such that at least a portion of the target metal(s) ions biosorb to the microorganism wherein the microorganism becomes metal laden and the pregnant solution becomes barren; (d) substantially separating the metal laden microorganism from the barren solution; and (e) recovery of the target metal(s) from the metal laden microorganism.