Abstract: A storage tank includes a floor, a roof, a sidewall extending between the floor and the roof, an access hatch provided on the roof and having a base, a lid pivotably coupled to the base, and a latch configured to secure the lid to the base in a closed position, and a system for remotely opening and closing the access hatch. The system includes an elongate arm having a proximal end operatively coupled to the lid, a pull cable attached to a distal end of the elongate arm and extending toward a ground adjacent the storage tank, and a latching cable attached to the latch and extending toward the ground adjacent the storage tank, wherein pulling on the latching cable when the lid is in the closed position actuates the latch to secure the lid to the base in the closed position.

Abstract: The present invention provides a process for modifying a Li-ion battery having a region of electrochemical activity and an enclosure therefor, said process comprising forming at least one chamber within said enclosure separate from said region of electrochemical activity, positioning combustion abatement agent within said chamber, whereby said combustion abatement agent is not in contact with said region of electrochemical activity, said chamber being pressure or heat sensitive, whereby when said region of electrochemical activity overheats, said chamber is breached, allowing said combustion abatement agent to contact said region of electrochemical activity to abate combustion of said region of electrochemical activity, wherein exemplary of combustion abatement agent is the composition comprising liquid fluoropolyether and exemplary of the of the chamber exhibiting pressure or heat sensitivity is to include a low melting, non-flammable polymer such as polyvinyl alcohol in the material of construction of the c

Abstract: A duct stringer forms at least part of a duct with a closed cross-section which is adapted to transport fluid. The duct stringer has a duct wall and a female bayonet fitting in the duct wall. The female bayonet fitting is configured to engage with a male bayonet fitting on a fluid transporting conduit to connect the fluid transporting conduit with the duct.

Abstract: A respirator comprising: an air supply unit arranged to deliver air at its output; headgear comprising a cradle for interfacing with a user’s head, and a face covering from within which the user breathes; a tube to receive air from the air supply unit; and a vibration decoupler, provided between the air supply unit and the head gear interface component, such that in use vibrations from the air supply and tube are reduced.

Abstract: A respirator comprising: an air supply unit arranged to deliver air at its output; headgear comprising a cradle for interfacing with a user's head, and a face covering from within which the user breathes; a tube to receive air from the air supply unit; and an interface component to receive air from the tube and to deliver said air within the face covering, wherein the interface component provides a frame for supporting the face covering, and comprises an overhead branch and a forehead branch, wherein the overhead branch comprises one or more bleed holes, such that in use vibrations from the air supply and tube are reduced. Components of the respirator and related methods are also described.

Abstract: A respirator comprising: an air supply unit arranged to deliver air at its output; headgear comprising a cradle for interfacing with a user's head, and a face covering from within which the user breathes; a tube to receive air from the air supply unit; and an interface component to receive aft from the tube and to deliver said air within the face covering. Components of the respirator and related methods are also described.

Abstract: Thermoplastic vulcanizate (TPV) compositions containing metallocene-based multimodal copolymer rubber and processes for making same. A TPV composition can include: (a) a multimodal copolymer rubber containing ethylene derived units, greater than 50 wt % and less than 100 wt % of a major polymer fraction having a Mooney viscosity of about 15 ML(1+4@125° C. to about 120 ML(1+4@125° C.), greater than 0 wt % and less than 50 wt % of a minor polymer fraction having a Mooney viscosity of about 120 ML(1+4@125° C.) to about 1,500 ML(1+4@125° C.), an average molecular weight distribution (Mw/Mn) of about 2.0 to about 4.5, an average branching index of about 0.7 and to about 1.0, and less than 10 parts by weight oil per 100 parts by weight of the multimodal copolymer rubber; (b) at least one other oil; (c) at least one thermoplastic polymer; and (d) a curing system comprising at least one curative material and at least one curing agent.

Abstract: A system for remotely opening an access hatch of storage tank includes an elongate arm having a proximal end configured to be operatively coupled to a lid of the access hatch and a distal end extendable past an outer perimeter of the storage tank, and a pull cable attached to the arm at the distal end and being extendable toward a ground surrounding the storage tank. Pulling on the pull cable releases a latch that secures the lid to a base of the access hatch and allows the lid to pivot from a closed position to an open position.

Abstract: Sold-state intravascular ultrasound (IVUS) imaging devices, systems, and methods are provided. Some embodiments of the present disclosure are particularly directed to compact and efficient circuit architectures and electrical interfaces for an ultrasound transducer array used in a solid-state IVUS system. In one embodiment, an intravascular ultrasound (IVUS) device includes: a flexible elongate member; an ultrasound scanner assembly disposed at a distal portion of the flexible elongate member, the ultrasound scanner assembly including an ultrasound transducer array; an interface coupler disposed at a proximal portion of the flexible elongate member; and a cable disposed within and extending along a length of the flexible elongate member between the ultrasound scanner assembly and the interface coupler. The cable includes four conductors electrically coupling the ultrasound scanner assembly and the interface coupler.

Abstract: A process is provided for the polymerization of fluoromonomer to an dispersion of fluoropolymer particles in an aqueous medium in a polymerization reactor, by (a) providing the aqueous medium in the reactor, (b) adding the fluoromonomer to the reactor, (c) adding initiator to the aqueous medium, the combination of steps (b) and (c) being carried out essentially free of hydrocarbon-containing surfactant and resulting in the kickoff of the polymerization of the fluoromonomer, and (d) metering hydrocarbon-containing surfactant into the aqueous medium after the kickoff of polymerization, e.g. after the concentration of the fluoropolymer in the aqueous medium is at least 0.6 wt %, the metering being at a rate reducing the telogenic activity of said surfactant while maintaining surface activity.

Abstract: The invention relates to a gyrostabiliser assembly (1) for a marine vessel comprising: a housing (2) defining a chamber (3) for supporting at least a partial vacuum; a flywheel (4) mounted within the chamber (3) for rotation about a spin axis (Z) at the partial vacuum; a flywheel shaft (5) upon which the flywheel (4) is supported and mounted in the housing for rotation of the flywheel about the spin axis (Z), the flywheel shaft being rotatably supported by a first spin bearing (6) located at one end region of the shaft (5) and a second spin bearing (7) located at an opposite end region of the shaft (5); and a lubrication system (8) configured to circulate lubricant (O) to the spin bearings (6, 7) from a lubricant reservoir (9). The reservoir (9) is arranged in or on the housing (2) to collect lubricant from the spin bearings (6, 7) under gravity and the first and second spinbearings (6, 7) are arranged in the housing (2) for operation under the partial vacuum.

Abstract: A fluid end assembly of a hydraulic fluid pump includes a housing, a plug member, a lock cover, and at least one retention pin. The housing may include at least one bore. The plug member may be positioned at least partially within the at least one bore. The lock cover may be coupled to the housing and configured to retain the plug member within the at least one bore during operation of the fluid end assembly. The at least one retention pin may extend at least partially through a portion of the lock cover to retain the lock cover in a rotational position that retains the plug member at least partially within the bore.

Abstract: Biometric keystroke measure data derived from a computer-implemented long form examination taken by an examinee is received. Features are the extracted from the biometric keystroke measure data for the examinee. A similarity value is then determined, using one or more of a direct distance approach or a machine learning approach, for the extracted features relative to features extracted from biometric keystroke measure data derived from each of a plurality of other examinees while taking the long form examination. At least one of the determined similarity values is then identified having a value above a pre-defined threshold. The pre-defined threshold indicates a likelihood of the examinee being the same as one of the other examinees. Data can then be provided that characterizes the identification. Related apparatus, systems, techniques and articles are also described.

Abstract: A gaming system, including a game outcome server, an account handling device and a client device communicatively coupled via network, is described. The game outcome server may be operable to send command, instructions, data or combinations thereof that allow an interface for a wager-based game to be generated on the client device, generate a game outcome for the wager-based game that is displayed on the client device and generate an update to a player balance maintained on the account handling device. The account handling device is operable to provide gaming services related to the game play on the client device including a) web-site hosting where the web-site lists available gaming services including games provided by the game outcome server, b) accounting, c) money handling including player account management and d) player eligibility functions.

Abstract: In one embodiment, a method for reducing drag includes forming a smooth surface on a first portion of a physical object. The method also includes forming periodic riblets on a second portion of the physical object. The method further includes generating a flow over the periodic riblets of the second portion of the physical object and over the smooth surface of the first portion of the physical object. The second portion of the physical object is adjacent to the first portion of the physical object. Each peak of each riblet of the periodic riblets of the second portion of the physical object is located above a plane of the smooth surface of the first portion of the physical object. Each valley between adjacent riblets of the periodic riblets of the second portion of the physical object is located below the plane of the smooth surface of the first portion of the physical object. A length of each riblet of the periodic riblets runs parallel to a direction of the flow.

Abstract: Disclosed herein is technology related to a heater device and corresponding systems and method. In examples the heater device has a frame having a base structure and a support beam. The support beam extends upward from the base structure. The frame is translatable across a ground surface. A cantilevered elongate heater extends from the frame. The elongate heater has a proximal end and a distal end, where the proximal end is coupled to the support beam of the frame. In some examples the elongate heater has a first heater element rotatable about an elongate axis central to the elongate heater. Additionally or alternatively, a plurality of heater elements are coupled to the cantilevered beam.