Abstract: There is described a method for ensuring and monitoring electrolyzer safety and performances in a manufacturing process which uses at least one electrolyzing cell containing at least one cathode and at least one anode separated by a membrane, comprising the step of: determining a safe single voltage operation range depending of the current and corresponding to the normally working electrolyzing cell; determining a reference voltage deviation depending on the time derivation of the current; measuring the voltage over time at the terminals of the electrolyzing cell; determining the measured voltage deviation by calculating the time derivative of the measured voltage; comparing the measured voltage to the safe single voltage operation range and the measured voltage deviation to the reference voltage deviation over time; stopping the manufacturing process when the measured voltage is outside the safe single voltage operation range or the difference between the measured voltage deviation and the reference voltage

Abstract: A composite reinforced mull post is disclosed for use in an entryway assembly. The mull post may engage a door on one side and a side light window on the other side. The mull post may comprise a one or two piece outer portion and one or more internal reinforcing members. The outer portion may comprise a plurality of interlocking pieces. The pieces may include a stop portion and a support portion, each with interlocking ribs. A first internal reinforcing member may be formed of engineered material such as a wood laminate, and a second reinforcing member may comprise a channel that extends partially around the first reinforcing member. The reinforcing member may include orthogonal portions conterminously received within a correspondingly shaped central chamber formed by the housing formed by the joined interlocking pieces.

Abstract: A wooden joist is described. The joist comprises a wooden top chord, a wooden bottom chord, and a main section comprising at least one of wooden boards and wooden webs adhesively connected to the wooden top chord and to the wooden bottom chord to form at least one of an I-joist subsection and an open-joist subsection along the main section of the wooden joist. An end configuration at one end of the main section comprises a wooden post extending generally perpendicularly between the wooden top chord and the wooden bottom chord and is adjacent to the main section. A wooden diagonal web extends diagonally from the wooden top chord to the wooden bottom chord. A first set of metal plates is in alignment on opposed sides of the wooden joist to connect the wooden top chord to the diagonal web. A second set of metal plates is in alignment on opposed sides of the wooden joist to connect the diagonal web and the post to the bottom chord.

Abstract: There is described a method and a system for evaluating damage of a plurality of cells in an electrolyser. The method comprises acquiring a voltage for each one of the cells; comparing the voltage to at least two threshold voltage levels; classifying the cells as one of: severely damaged cells, non-severely damaged cells and undamaged cells, based on the comparison of the voltage with the at least two threshold voltage levels; and deactivating the cells classified as severely damaged cells from the electrolyser.

Abstract: A liner assembly for pipeline repair and methods of installing same. The liner assembly generally comprises an outer tubular liner, an inner malleable inflatable bladder positioned longitudinally within said liner, and a generally non-stretchable strap positioned longitudinally within the malleable inflatable bladder. The generally non-stretchable strap restricts longitudinal over-expansion during positioning and inflation of the liner assembly within a pipeline.

Abstract: A liner assembly for pipeline repair and methods of installing same. The liner assembly generally comprises an outer tubular liner, an inner malleable inflatable bladder positioned longitudinally within said liner, and a generally non-stretchable strap positioned longitudinally within the malleable inflatable bladder. The generally non-stretchable strap restricts longitudinal over-expansion during positioning and inflation of the liner assembly within a pipeline.

Abstract: A fire resistant door assembly is disclosed comprising a pair of horizontal rails, a pair of vertical stiles, first and second door skins, and a foam core. The first and second door skins are made from a molded fiberglass material that includes aluminum trihydroxide, which provides a degree of ultraviolet light resistance as well as fire resistance. The foam core is made from a polyurethane foam qualified to ASTM E84, Class I, while the stiles and rails are made from a polyvinylchloride material. The resulting door assembly is made from 100% composite material, provide a high degree of durability, while resulting in a door that maintains its structural integrity and resistance to smoke and fire in accordance with state and local building codes.

Abstract: There is described a method and system for detecting an anomaly in data originating from a component used in an industrial process. The anomaly detection steps comprise: providing predictive models in which at least one of the predictive models corresponds to at least one operating mode from a plurality of operating modes of the component; obtaining operating data from the component, the operating data being indicative of a given operating mode from the operating modes; selecting at least one of the predictive models based on the given operating mode; generating estimated data using the selected at least one predictive model; comparing the operating data with the estimated data; and generating an alarm trigger when the comparison meets a given anomaly criteria thereby constituting the detection of the anomaly.

Abstract: There is described a method for detecting anomalies in a set of signals that normally exhibit analogous behaviour. The method comprises: acquiring a set of signals from at least one measurement source; designating a reference signal Sref from the acquired set of signals; computing a deviation Devi between the reference signal Sref at a reference point in time tref (Sref(tref)) and at least one of the acquired signals Si over time; and generating a deviation alarm trigger when the deviation meets a given deviation criteria.

Abstract: The present invention relates generally to applicators and a method for reducing the concentration of unwanted chemicals, such as para-chloroaniline (PCA) from an antiseptic solution. More specifically, the applicator includes antiseptic solution in amount sufficient to be applied to a desired surface and to have an antimicrobial effect on the desired surface and a porous element. The porous element selectively removes undesired by-products from the antiseptic solution when the antiseptic solution contacts the at least one porous element.

Abstract: In a door constructed of spaced apart skins mounted on a rectangular frame and reinforced with the core between the skins filled with a plastic foam, a window or door light frame system consists of a two part frame system with a window light permanently installed in one part of the system and the other part releasably adapted to register with the frame part with the window light installed during shipping and rotated when installed to bring the locking elements of the several parts into registry to permanently lock the frame system in an aperture formed in a door with stop means in the locking arrangements to prevent damage to the frame system or the door on which the frame system is installed from excessive compressive forces on the frame parts.

Abstract: A composite reinforced mull post is disclosed or use in an exterior building entryway assembly, engaging a door on one side and a side light window on the other side. The mull post may comprise a polymer profile portion and first and second reinforcing members. The profile portion comprises a layer of polyvinyl chloride with a hollow center. The first reinforcing member comprises an engineered material such as a wood laminate, and the second reinforcing member comprises a U-shaped steel channel that fits around one end of the first reinforcing member. The reinforcing members are received within the hollow center of the polymer profile portion and run the entire length of the mull post to provide substantial rigidity to the assembly. A polymer cap layer may be co-extruded on the outer surface of the polymer profile portion to provide the mull post with a desired finished surface appearance and/or color.

Abstract: A trimmable door is disclosed comprising a pair of horizontal rails, a pair of vertical stiles, first and second door skins, and a foam core. The first and second stiles are made from a composite material that is easily trimmed to enable the door to be custom fit to the unique shape and dimensions of a particular door frame opening, such as is common in the renovation market. The first and second rails also may be made from a trimmable composite material. To provide an additional measure of adjustability, the first and second door skins may also be trimmable. The first and second door skins may be compression molded and have a texture and grain approaching that of wood. The foam core may be a foamed-in-place polyurethane material. The composite material used to form the first and second stiles may be a co-extrusion material of polymer and wood flour.

Abstract: The present invention provides a method and system for electrolyzer diagnosis based on curve fitting analysis and efficiency optimization. The present invention relates to monitoring the electrochemical cell components by using curve fitting and estimating the overall electrolyzer performance by using predictive models. The system according to the present invention includes an extraction unit for selecting suitable operation zones, a filtering unit, a curve fitting unit performing linear or non-linear regression by using user-defined equations applied to current-voltage data points and a curve fitting goodness analysis unit. The zones are defined as start-up zones, shutdown zones and load change zones. The system further includes a curve fitting parameters characterization unit for classifying curve fitting parameters by respect to the electrolyzer cells components technology and reference values, and a characterization database for storing fitting coefficients and their characterization.

Abstract: A stray voltage detector has a portable housing carrying a pair of electrostatic charge sensors spaced apart along an axis, and a pair of field intensity indicators, each indicator connected to an associated one of the charge sensors and constructed to indicate a relative electric field intensity at its associated sensor. The voltage detector is constructed to provide simultaneous electric field intensity feedback from both indicators to an operator moving the housing along the axis over a surface with a localized region at an elevated voltage, to assist in locating the localized elevated voltage region. The detector is useful for locating high-voltage regions, even when there is little or no current flowing through such regions to generate a magnetic field.

Abstract: An installation assembly (20) for installing a liner (L) in a pipeline (P) comprises a double bladder assembly (22) including an inner bladder (26) having an installation end (26b) and a retrieval end (26c). An outer bladder (28) surrounds the inner bladder. The ends of the inner and outer bladders are coupled together adjacent the installation end via an inversion element (30). The inner bladder is coupled to an air source at its retrieval end and the outer bladder adjacent the retrieval end is free. Following installation and curing of the liner, the bladder assembly is retrieved by pulling on the retrieval end of the inner bladder, and upon retrieval, the outer bladder is inverted.

Abstract: A bracket assembly for attaching a slide track to a rail of an equipment rack without the need for tools comprises a longitudinal main portion, a first or interior surface of which provides a mounting surface for the slide track, and an attachment portion that is substantially perpendicular to the main portion, and that is configured to seat against the rail. A quick-release latching assembly, including a latch element, is slidably mounted on a second, or exterior, surface of the main portion of the bracket assembly adjacent to the end portion, and is movable between a first position, in which the latch element is in a locking engagement with the rail, and a second position in which the latch element is disengaged from the rail. The latching assembly is coupled to the main bracket portion by a biasing element, such as a spring or an elastic band, that biases the latching assembly toward the first position.

Abstract: The present invention provides a method and system for electrolyzer diagnosis based on curve fitting analysis and efficiency optimization. The present invention relates to monitoring the electrochemical cell components by using curve fitting and estimating the overall electrolyzer performance by using predictive models. The system according to the present invention comprises an extraction unit for selecting suitable operation zones, a filtering unit, a curve fitting unit performing linear or non-linear regression by using user-defined equations applied to current-voltage data points and a curve fitting goodness analysis unit. The zones are defined as start-up zones, shutdown zones and load change zones. The system further comprises a curve fitting parameters characterization unit for classifying curve fitting parameters by respect to the electrolyzer cells components technology and reference values, and a characterization database for storing fitting coefficients and their characterization.

Abstract: A container opening device and method are provided to facilitate the opening of containers of the type having integral pull tabs. The device includes a body, a tip located at one end of the body, and a handle located at the opposite end of the body. A slot is formed in the body and is positioned between the handle and the tip. The device is first used as a lever to rotate the pull tab to an activated position. The pull tab is then inserted within the slot formed in the body, and the handle of the device is rotated while securing the pull tab in the slot causing the lid to roll around the body thus separating the lid from the container.

Abstract: An optical drive is provided with a substantially coherent light source and a collimation element to collimate a beam emanating from the light source. Beam-redirection elements redirect the collimated beam. Each beam-redirection element has noncollinear input and output axes for receiving light along the input axis and propagating the received light along the output axis. A first of the beam-redirection element is rotatable about a principal axis and a second of the beam-redirection elements is rotatable about the output axis of the first beam-redirection element. A focusing element focuses light emanating from the output axis of the second beam-redirection element onto a surface of the optical medium.