Abstract: Loudspeakers are described that may reduce comb filtering effects perceived by a listener by either 1) moving transducers closer to a sound reflective surface (e.g., a baseplate, a tabletop or a floor) through vertical (height) or rotational adjustments of the transducers or 2) guiding sound produced by the transducers to be released into the listening area proximate to the reflective surface through the use of horns and openings that are at a prescribed distance from the reflective surface. The reduction of this distance between the reflective surface and the point at which sound emitted by the transducers is released into the listening area may lead to shorter reflected path that reduces comb filtering effects caused by reflected sounds that are delayed relative to the direct sound. Accordingly, the loudspeakers shown and described may be placed on reflective surfaces without severe audio coloration caused by reflected sounds.

Abstract: A modular pedestal distribution hub includes a pedestal and a cover attaching to and covering a portion of the pedestal. The pedestal includes a first pedestal section and a second pedestal section. Each of the first pedestal section and the second pedestal section are configured to be attached to form the pedestal. The cover includes a front cover and a back panel. The front cover and the back panel are configured to be attached to form the cover.

Abstract: A filter element includes a construction of pleated filter media defining an interior volume. First and second opposite end caps are secured to opposite ends of the filter media. A support structure supports the filter media and is operably oriented in the interior volume. The support structure extends from the first opposing interior face to the second opposing interior face. The support structure is provided to extend less than a full extension between the first end cap and second end cap.

Abstract: An aftertreatment system for treating constituents of an exhaust gas includes: a housing defining a first internal volume and a second internal volume; an oxidation catalyst in the first internal volume and extending along a first axis, the oxidation catalyst configured to receive at least a portion of the exhaust gas via an inlet conduit fluidly coupled to the oxidation catalyst; a filter in the first internal volume and extending along a second axis parallel to and offset from the first axis, wherein an outlet of the filter is disposed within the second internal volume and configured to emit the exhaust gas into the second internal volume; at least one selective catalytic reduction (SCR) catalyst in the second internal volume and extending along a third axis that is perpendicular to the first axis; and a decomposition tube in the second internal volume in a direction parallel to the third axis.

Abstract: An electrical delivery apparatus. The apparatus includes a plug assembly configured to be inserted into a receptacle apparatus of a vehicle to deliver electrical power to the vehicle. The apparatus includes a control means configured to, upon activation, deliver electrical power to the vehicle via an electrical line and the plug assembly, and, upon detection of at least one predetermined condition, automatically disconnect the electrical power from the electrical line and the plug assembly. The predetermined condition includes disconnection of the plug assembly from the receptacle apparatus.

Abstract: A carrier assembly (10) engages a pipe ring for installing the pipe ring in an existing pipeline to repair the existing pipeline. The carrier assembly (10) has a chassis assembly (12), a support arm assembly (14) and a drive system (16). The chassis assembly (12) has the support arm assembly (14) operably connected thereto. The drive system (14) is operably connected to the chassis assembly (12) wherein the chassis assembly (12) is configured to move along the pipeline. The support arm assembly (14) is configured to engage the pipe ring wherein the support arm assembly (14) is moveable relative to the chassis assembly (12) to displace the pipe ring relative to the chassis assembly (12) for installation in the existing pipeline.

Abstract: Optical systems and components thereof are disclosed which may be used for efficiently coupling laser energy into an optical conduit while maintaining a homogenous beam output from the optical conduit. Some embodiments are directed more specifically to far field beam homogenization of optical fiber coupled radiation.

Abstract: Optical systems and components thereof are disclosed which may be used for efficiently coupling laser energy into an optical conduit while maintaining a homogenous beam output from the optical conduit. Some embodiments are directed more specifically to far field beam homogenization of optical fiber coupled radiation.

Abstract: Laser diode circuitry that controls the laser diode temperature as a function of laser diode current. Changes in the spectral output of the laser diode directly caused by adjustments to the operating current of the laser diode are offset by corresponding changes in the diode temperature. Diode temperature regulation circuitry automatically changes the diode temperature by monitoring the diode operating current. Alternately, when the diode current is adjusted to intentionally shift the spectral output of the diode, for example to maintain a frequency match to an external cavity resonance, the temperature regulation circuitry automatically changes the diode temperature to induce an additional spectral shift in the same direction, thereby inducing a current adjustment in the opposite direction that prevents large excursions in the amplitude of the operating current of the diode.

Abstract: An optical system is disclosed for improving the brightness symmetry of a beam emitted from a laser diode where the beam has a large width and a narrow height. The optical system includes a tilt plate for displacing one half of the width of the beam downwardly. A first beam steering prism functions to tilt the remaining, second half of the beam width in a plane parallel to the width dimension so that the second half travels towards the first half. A second beam steering prism is provided to tilt the second half of the beam so that its propagation axis is parallel to the propagation axis of the first half and wherein the second half is stacked above the first half. The optical system functions to improve the brightness symmetry of the beam by a factor of about five. The corrected beam can be used to improve the performance of a solid state laser which is end pumped by a broad area laser diode or a laser diode bar.

Abstract: An optical system is disclosed for improving the brightness symmetry of a beam emitted from a laser diode where the beam has a large width and a narrow height. The optical system includes a tilt plate for displacing one half of the width of the beam downwardly. A first beam steering prism functions to tilt the remaining, second half of the beam width in a plane parallel to the width dimension so that the second half travels towards the first half. A second beam steering prism is provided to tilt the second half of the beam so that its propagation axis is parallel to the propagation axis of the first half and wherein the second half is stacked above the first half. The optical system functions to improve the brightness symmetry of the beam by a factor of about five. The corrected beam can be used to improve the performance of a solid state laser which is end pumped by a broad area laser diode or a laser diode bar.

Abstract: A resonator assembly particularly suited for a diode pumped solid state laser is disclosed. The assembly includes a glass planar support plate 20. At least two transparent mirror mounts 26, 28 are bonded to the plate using a UV curable adhesive. The resonator mirros 22, 24 are in turn bonded to the mounts using a similar adhesive. The structure is easy to align and assemble and is low in cost. In addition, the assembly can be formed from materials having a low coefficient of thermal expansion so that the thermal stability is enhanced. Further, the transparent mirror mounts provide enhanced stability while allowing transmission of laser radiation.

Abstract: A ring laser is provided with only two reflecting surfaces to define the cavity. A gain medium is located between the reflecting surfaces. At least one optical interface is located within the cavity and is oriented such that the beam will be deflected by refraction to create a ring path. The angle of incidence of the beam with the interface should be less than Brewster's angle and the surface should have an antireflective coating. The interface can be located on the lasant material, on a non-linear optical material or on a passive optical element. Preferably, the device is arranged to achieve unidirectional and single frequency operation. When the ring is used for intracavity second harmonic generation, the resultant output is amplitude stable because of the avoidance of mode beating. The second harmonic radiation is generated unidirectionally increasing useable output.

Abstract: A filter apparatus in which a generally horizontal bed of filter material is supported in a tank on a porous support above the bottom of the tank and is divided by spaced partitions into individual filter cells above the support and individual filter compartments below the support, and a carriage is mounted for movement along the filter bed and has a collector hood that moves along the top of the bed to collect backwash effluent therefrom and a backwash head arranged to direct backwash fluid into the compartments below the porous support to sequentially backwash the filter cells. A cell scavenging head is mounted on the carriage for movement along the filter bed and arranged to sequentially withdraw fluid from each filter compartment and down-flow scavenge and rinse the associated filter cell subsequent to backwashing of each filter cell.

Abstract: The present invention provides for a clouding agent which is free of brominated vegetable oils or glyceryl abietate and which produces a non-ringing, taste-free, precipitation-free cloud in still or carbonated beverages, said clouding agent comprising carnauba wax, a water soluble gum, water, a polyhydric alcohol of two to six carbons, and an edible salt.

Abstract: A floating downflow mixer including a float having a central float passage and a pump casing mounted on the float with its upper end spaced below the float to provide an intake at the underside of the float. A drive motor is mounted on top of the float and has an integral shaft extension extending downwardly through the float passage and a propeller mounted at its lower end in the pump casing. A shaft stabilizer tube is supported on a mounting plate attached to the top of the float and extends downwardly through the float with an anti-deflection bearing at its lower end surrounding the shaft and having a running clearance therewith to inhibit deflection of the shaft. The mounting plate seals the float passage between the stabilizer tube and float and a mechanical rotary seal seals the interface between the stabilizer tube and shaft to prevent entrance of air to the anti-deflection bearing and propeller.