Abstract: An angled electrical connector has a body having an engagement portion including a sleeve which extends in a longitudinal first direction for engaging with a mating electrical connector. The sleeve has a cylindrical inner portion at the base of the sleeve and a tapered portion, such that the opening of the sleeve is larger than the base. A corresponding receptacle part is also provided, having a projecting connection port, with a corresponding cylindrical portion at or near the end.

Abstract: A double-wall heat exchanger includes a plurality of heat exchange plate pairs. Each heat exchange plate pair forms a double-wall structure including two heat exchange plates that are at least partially separated by a leak space. At least one weep hole is disposed through the plurality of heat exchange plate pairs and intersects the leak spaces of the plurality of plate pairs to channel leaking fluid from the leak spaces to a location outside of the heat exchanger. The at least one weep hole is positioned on a surface of the heat exchanger at a location that is spaced from a side boundary of the heat exchanger thereby enabling an operator of the heat exchanger to observe a leakage on the surface of the heat exchanger.

Abstract: A mechanism (20) for connecting the coupling nut (14) and barrel (12) of an electrical or optical connector to resist but not prevent their relative rotation, includes a clicker ring (22) that has forward-projecting teeth (36) and that fits into a circular recess (32) at the rear of the coupling nut to engage rearward-projecting nut teeth (34). The clicker ring also has slots (40) that receive radially-outward projections (42) on the barrel, to prevent clicker ring turning.

Abstract: A downhole tool for use in completing a well includes a plug body selectively securable to a wellbore at a desired elevation and having a flowbore. A non-dissolvable flow restrictor is operably disposed in the flowbore and operates to restrict fluid flow through the flowbore, and a time-dissolvable retainer or spacer is operably coupled to the flow restrictor to retain the flow restrictor in a first position within the flowbore. The retainer is dissolvable within a predetermined passage of time to release the flow restrictor to move between the first position and a second position within the flowbore to control the flow of fluid through the downhole tool.

Abstract: Focusing devices and methods for controlling a focal position of an objective lens assembly in a night vision optical device are provided. The focusing device includes an objective lens assembly positioned at a first or second focus position from an imaging device and a binary focus controller, coupled to the objective lens assembly, configured to translate the objective lens assembly relative to the imaging device to either the first or second focus position. The objective lens assembly is translated to either the first or second focus position in response to an orientation of the night vision optical device.

Abstract: A circulation pump for a conveyed liquid is provided. The circulation pump has an electric motor, which is electronically commutated, has a rotor, a stator and a motor circuit. An impeller is connected in a rotationally fixed manner to the rotor. The electric motor has an evaluation device for determining a flow rate of conveyed liquid through the circulation pump from a rotational speed of the rotor and/or a power consumption of the electric motor. At least one signal output is provided, by which a flow rate signal and/or flow rate-dependent switching signal can be supplied by the circulation pump.

Abstract: A diaphragm valve is disclosed. The diaphragm valve includes a valve body including a housing defining a fluid flow passageway and a valve seat. A bonnet assembly including a housing is mounted to the valve body. A diaphragm, a backing cushion and a resilient member are positioned between the bonnet assembly and the valve body. The resilient member is sandwiched between the housing of the bonnet assembly and the backing cushion for urging the backing cushion toward the diaphragm, thereby urging the diaphragm against the valve body.

Abstract: A vibration isolator includes a base plate having a first attachment feature that enables attachment of the isolator to a first surface, the isolator further including a second attachment feature permitting attachment to a second surface. A spring section disposed between the base plate and the second attachment feature has a first radiused section and a second radiused section, each of the first and second radiused sections being formed in opposing directions on a continuous spring portion intermediate to the base plate and second attachment feature and in which the spring section provides noise attenuation and isolation between the first and second surfaces.

Abstract: An electrode for a plasma arc torch is provided with features for improving electrode wear. An emissive insert is received into a cavity formed along one end of the torch body. A portion of the emissive insert is separated from the torch body by a sleeve positioned along the insert near the emission surface of the insert. The sleeve can operate to slow the erosion of the electrode body and thereby improve overall electrode life.

Abstract: A math engine is provided capable of supporting large complex mathematical computations, such as modulo math computations involved in cryptography, while remaining easily reconfigurable, upgradeable and scalable. As new algorithms and specifications are desired to be solved, the math engine can be easily updated to accommodate the new requirements. These systems employ layers of cells, wherein individual cells are responsible for calculations. Thus, the complexity of the mathematical computation is broken down into cells which are easily added, removed, changed or substituted. The cells may be interchangeable and programmable, and provide flexibility and reconfigurability to the system at low or near-zero cost. When additional algorithms are desired, additional appropriate cells are simply added or changed.

Abstract: A first electrical connector (1) for terminating an electrical cable (11) and for engaging with a mating electrical connector (51). The first connector comprises a body (5) having an engagement portion including a sleeve (7) whose passage extends along a mating axis (101) for engaging the mating electrical connector. The connector comprises at least one resilient member (15), such as a coil spring, arranged on the sleeve. The resilient member is capable of deforming radial to the mating axis (101) to provide a reaction force for maintaining the engagement of the connector with the mating connector. The first connector can be detached by lifting a boot (13) to pry apart the connectors.

Abstract: A plug-in unit (112, FIG. 7A) with a housing (150) that receives an electrical contact arrangement (55, FIG. 6) that has a cable bushing (151, FIG. 7A). The housing has an aperture (153) in a housing wall for the plugged-in reception of the mating plug-in unit (11, FIG. 2). In order to allow for the optional design of an angled or a linear plug-in connection, the cuboid housing (150, FIG. 7A) is divided along a plane (180) that runs perpendicular to a longitudinal central plane (179) and at a 45° angle to the longitudinal extension of a bushing (151) in such a way that a first housing part (181) contains the cable bushing (151) and the second housing part (182) forms the plug-in aperture (153). The second housing part (182) is attached to the first housing part so the second housing part (182) can be turned with respect to the first housing part (181).

Abstract: An apparatus and method for damping vibrations within a physical object that is subject to vibration. In one version, a highly flexible enclosure includes at least one interior cavity that is substantially filled with a damping material in which the flexible enclosure is wrapped and secured about the exterior of the physical object.

Abstract: A rotary hinge assembly includes a hinge housing including at least one interior chamber. A spring disposed within the hinge housing provides a torque on an attached door while in an opened and closed position. A rotor rotatably disposed within the at least one interior chamber includes at least one rotor vane that moves in relation to a stationarily mounted stator having at least one stator vane. A fill plug includes a plurality of entrance and exit holes disposed in relation to the stator and rotor vanes to define a fluidic damper assembly. A valve disposed within the fill plug permits selective adjustment of the fluidic damper by restricting or opening the entrance and exit holes of the fill plug.

Abstract: A technique for generating complementary signals for joint transmission involves generating a first signal having a first wavelength and a second signal having a second wavelength. The first signal is modulated with a first modulation to encode data, and the second signal is modulated with a second modulation, which is an inverted version of the first modulation, to encode the same data such that the first and second signals are complementary. The first and second signals are combined to produce a combined signal in which power attributable to the first signal is interleaved with and substantially non-overlapping temporally with power attributable to the second signal. The combined signal is amplified and then transmitted. The first and second signals can be optical signals at respective first and second optical wavelengths, where the first and second signals are on-off keying (OOK) modulated.

Abstract: Enhanced reception in a communication system is achieved by applying a time domain generated time-reversed channel response to signals transmitted from a group of transmitter to a group of receivers. The time-reversed channel response is generated from a radio frequency channel response derived from signals previously received from the group of receivers, but reversed in the time domain. The time-reversed channel response is convolved with an information signal that when transmitted in a coordinated fashion from the group of transmitters, the signals arrive at each receiver in the group of distant receiving communication devices at approximately the same time where the signals coherently combine, thereby increasing signal power at the receivers. This permits detection at a greater range or with a lower bit error rate. In addition, the many-to-many configuration enables signal power from each transmitter to be focused temporarily and spatially on each receiver.

Abstract: A lead through for fluid tight connection of a mixer assembly to a roof of a fluid housing digestion tank, including a first element presenting a central opening and an axially extending centre axis, and a second element presenting a central opening and an axially extending centre axis. The extension of the centre axis of the second element is adjustable in relation to the extension of the centre axis of the first element. The lead through includes a device for making an interface fluid tight located at the interface between the first element and the second element. Positioning members are arranged to determine the mutual positions of the first element and the second element in the axial direction, and some of the positioning members are constituted by mutually independent adjustment members, which are located on the opposite side of the device for making an interface fluid tight.

Abstract: A pump is provided featuring a housing and battery configuration, where the housing is configured with a battery receiving portion having electrical terminals for receiving power to the pump, and where the battery has a protruding portion with corresponding electrical terminals configured to contact the electrical terminals to provide power to the pump when the protruding portion of the battery is inserted into the battery receiving portion of the housing and rotated in one direction to an “ON” position, and also configured not to contact the electrical terminals when the battery is not rotated to the “ON” position.

Abstract: The invention relates to a mixer assembly for agitating material in a digestion tank (1), comprising a drive unit (7, 8, 9) and an output shaft (10) extending from said drive unit, which output shaft is arranged to hang down into said digestion tank (1) rotatably suspended from the drive unit. According to the invention the mixer assembly (6) furthermore comprises a stabilizer (12) comprising a swivel (13) and at least one resilient element (14) connected to said swivel (13), the stabilizer (12) being connected to the lower end of the output shaft (10) of the mixer assembly (6) and being arranged to be connected to a floor (2) of said digestion tank.

Abstract: The invention provides an oil level or condition sensor featuring a housing and a baffle or plate arrangement arranged in the housing, where the baffle or plate arrangement forms a capacitor when the housing is filled with oil, the baffle or plate arrangement being responsive to a signal, for providing an oil level or condition sensor signal containing information about the level or condition of the oil in the housing. The baffle or plate arrangement may include one or more plates or a single or multiple star shaped baffles. The one or more plates or multiple star shaped baffles are spaced apart to form the capacitor. The level or condition of the oil within the baffle or plate arrangement changes the inductance. The single or multiple star shaped baffles each have a small hole in the center which provides a visual indication of the oil level. The housing has a transparent window. The inductance change can be measured and used to send alarms or warnings.