Abstract: A concrete saw trailing having a deck for receiving the saw and safely transporting the saw. The saw trailer additionally includes a vacuum excavation system having a vacuum tank for recovering debris from a worksite, a power washing system for cleaning operations, and a cooling water supply system for coupling to and supporting use of the concrete saw. A pair of split ramps permit access to the deck from the street side of the trailer, and two opposing saddle bag water tanks provide enough water for the use of vacuum excavation system, power washing system, and cooling water supply system.

Abstract: A system for optimizing performance of an engine, including an intake manifold with an upper mount, plenum floor defining a plenum opening, lower mount defining intake openings, and intake runners communicating between the plenum and intake openings. The upper mount may be coupled to an air inlet device and the lower mount may be coupled to a cylinder head. A mountable device has an upper portion and lower portion and is configured to be inserted through the upper mount of the intake manifold to be coupled to the plenum floor so the mountable device covers the plenum opening and at least the upper portion of the mountable device remains between the upper mount and the plenum floor. A fixation system is configured align the mountable device to the intake manifold and to prevent the mountable device from decoupling from the plenum floor during engine operation. The mountable device is interchangeable without removing the intake manifold from the cylinder head.

Abstract: An injection sleeve and apparatus for injecting fluid into a well includes a flow tube having a piston which upon fluid flow opens one or more outlet ports. The injection sleeve is adapted to include a variable orifice insert which prevents flow through the tool at a first selected pressure level until the outlet ports are in an open position, thereby protecting packing seals on either side of the outlet ports from undue wear and tear, and prolonging the life of the tool. At a second pressure level, the variable orifice insert permits flow through injection sleeve to the formation injection zones. A plurality of the sleeves may be used for sequentially injecting fluid into a plurality of injection formation zones surrounding a well. When injection fluid flow is terminated, the injection sleeves act as a dual barrier valve for preventing flow from the injection formation zones back to the well head.

Abstract: A vehicle includes an engine, a plurality of drive wheels, a vehicle transmission configured to transmit power from the engine to the plurality of drive wheels, one or more vehicle attitude sensors, and an electronic control unit communicatively coupled to the one or more vehicle attitude sensors and the vehicle transmission. The electronic control unit is configured to receive a signal from the one or more vehicle attitude sensors, determine a degree of vehicle descent based on the signal received from the one or more vehicle attitude sensors, and downshift the vehicle transmission based on the degree of vehicle descent determined based on the signal received from the one or more vehicle attitude sensors.

Abstract: A shell structure for a thyristor trigger unit comprises an integrally-formed shell body with a holder and a cuboid structure, and a side plate. The cuboid structure is a cuboid with an opening in its front where an open face is formed at the front opening of the cuboid. The cuboid further includes a rear panel, a left panel, a right panel, an upper panel, and a lower panel. The holder includes a square retaining plate and two triangular stiffener plates. The square retaining plate is formed by a bottom panel extending towards a side of the left panel in a long side direction of the cuboid while the triangular stiffener plates are fixedly connected between the square retaining plate and the left panel. The side plate is mated with and detachably mounted on the open face to produce a sealed 6-face cuboid structure by sealing off said open face.

Abstract: An apparatus for packaging a semiconductor device is provided. The apparatus includes a first mold, a second mold and a support element. The first mold includes a plate. The second mold includes a carrier disposed corresponding to the plate. The carrier defines a hole penetrating the carrier. The support element is engaged with the hole for supporting an object to be molded.

Abstract: A bicycle may include a front triangle and a rear suspension system that couples the front triangle to a rear wheel and is dampened by at least one shock absorber. The rear suspension system includes a six-bar linkage having two ternary links separated from each other by one or more binary links, such that the two ternary links do not share a common joint. One of the ternary links may comprise a chain stay. In some examples, the other ternary link may comprise the front triangle. In some examples, the other ternary link may comprise a rocker arm coupling a seat stay link to the shock absorber.

Abstract: A method of providing current traffic light status information to a driver of an object vehicle for one or more traffic light devices at an intersection is provided. The method includes receiving current traffic light status information by an intersection traffic signal indicator system of the object vehicle from a source external the object vehicle using one or both of vehicle-to-vehicle and vehicle-to-infrastructure communication. The current traffic light status information is indicative of a traffic light of a traffic light device visible to an oncoming vehicle. A reproduction of the traffic light visible to the oncoming vehicle is displayed as a graphic object on a display of the object vehicle using the traffic light status information.

Abstract: Carbon opals, a form of colloidal crystal, are composed of ordered two-dimensional or three-dimensional arrays of Monodispersed Starburst Carbon Spheres (MSCS). Methods for producing such carbon opals include oxidizing as-synthesized MSCS, for example by heating in air, to increase surface charge. Such oxidation is believed to decrease settling rates of a colloidal suspension, enabling formation of an ordered colloidal crystal. Inverse opals, composed of any of a wide variety of materials, and based on a carbon opal template, have a reciprocal structure to a carbon opal. Inverse opals are formed by methods including: forming a carbon opal as described, impregnating a desired material into pores in the carbon opal to produce a hybrid structure, and removing the carbon portion from the hybrid structure.

Abstract: A system for maintaining a selected speed of a vehicle is provided. The vehicle is powered in part by an electric motor and a battery. The electric motor is operable to drive in either a driving state or a charging state. In the charging state the polarity of the electric motor is modified so as to slow the vehicle down and supply power to the battery. A load bank is provided. The load bank is in electrical communication with the electric motor. The controller is further operable to direct power from the electric motor to the load bank when the electric motor is in the charging state.

Abstract: An LED optical assembly including an LED, a lens, and a reflector. The lens is made up of a light entry surface and a light emission surface rotated about a rotational axis. The reflector has a pair of first reflecting surfaces and a pair of second reflecting surfaces. The first reflecting surfaces are defined by a first curve rotated about the rotational axis. The second reflecting surfaces are defined by a second curve projected along the rotational axis. The lens and reflector cooperate to redirect light emitted by the LED into a vertically collimated wide angle beam of light.

Abstract: An embodiment includes a valve with a filter in which the flow of water through the valve is stopped by lowering a filter within the valve. This movement of the filter allows a poppet valve to close, stopping the flow of water. Subsequent raising of the filter holds the poppet valve in the open position, allowing the flow of water through the filter for further use. Embodiments are found in drinking fountains and facilitate the maintenance of the drinking fountain by allowing a technician to shut off the water using a screwdriver without requiring the removal of the fountain cover.

Abstract: This disclosure relates to a truck-mounted concrete pump comprising a concrete-distributing boom which is constituted by a plurality of folding boom arms and rotationally mounted on a slewing gear on a chassis, and a tilt sensor for detecting a tilt of the truck-mounted concrete pump. According to this disclosure, the truck-mounted concrete pump is provided with a safety device which restricts the operating range of the concrete-distributing boom subject to a tilt of the pump, said safety device being coupled to the tilt sensor. The safety device is designed to limit the slewing motion on the slewing gear and/or the swiveling motion of at least one boom arm.

Abstract: A boom for a working machine, in particular a concrete-distributing boom for guiding a concrete delivery line, with a plurality of boom arms which can be moved into a working position and which are composed at least partially as a box construction of a plurality of side walls delimiting a cavity region, and with a sealing bulkhead arrangement for sealing a cross section of the cavity region, wherein the sealing bulkhead arrangement has a bulkhead wall provided peripherally with an at least partially encircling sealing groove, and wherein the sealing groove has arranged therein an elastic seal which bears tightly on the inside against the adjoining side walls.

Abstract: Arrangements described herein include dynamic spoiler systems and methods for controlling such systems. The dynamic spoiler can include a housing operatively connected to a vehicle structure, such as a truck bed tailgate. The housing can have a lower panel, an upper panel, and an opening between the lower and upper panels. The dynamic spoiler can also include a fin moveable between a retracted position and one or more extended positions. In the retracted position, the fin can be substantially entirely located within a cavity defined by housing. In an extended position, the fin can extend at least partially out of the housing through the opening in a rearward direction.

Abstract: A vehicle utility light assembly is disclosed in which an elongated body portion functions to be stowable in a first position within a vehicle body panel. The elongated body portion further functions to be vertically-releasable from the first position to a second position, and being operable to selectively illuminate the vehicle body panel from above by a light source of the elongated body portion.

Abstract: An integrated circuit (IC) based physically unclonable function (PUF) that comprises a common source amplifier for generating PUF output voltages, a unity gain, negative feedback operational amplifier for generating bias voltages, a voltage regulator and a bit exclusion circuit that excludes unstable PUF bits. Compensation circuitry built into the IC-PUF provides a high power supply rejection ratio and enables highly reliable operation of the IC-PUF across varying input voltages and operating temperatures. The IC-PUF generates a uniformly random output bit stream by taking advantage of process variations that are inherent to the fabrication of (metal-oxide semiconductor) MOS transistors.

Abstract: A construction for a boom such as a dragline boom provides a spade plate that connects lacing members to a main chord at a cluster. The spade plate is curved. One edge of the spade plate has tabs attached to the lacing members. Another edge of the spade plate is attached to the main chord. The spade plate may be applied for new construction or repair.

Abstract: A method for manufacturing an artificial branch for use in providing an aesthetic element, or for providing camouflage or another structure. The joints between the various members of the artificial branch are preferably welded in place. The artificial branch preferably includes a main stem assembly including a reinforcing plug, branch stem members, limb assemblies, limb coupling members, a longitudinal support member, and foliage members.

Abstract: A high performance, multiple rotor, hydraulically driven riding trowel for finishing concrete includes a rigid trowel frame with two or more downwardly-projecting, bladed rotor assemblies that frictionally engage the concrete surface while supporting the trowel. The rotor assemblies are tilted with double acting hydraulic cylinders to effectuate steering and control. A seating arrangement supports an operator. A special ventilation path is provided to prevent overheating of the operator area. cooling compartment adjacent the seating region, Pathways are established by a cooling compartment enclosed by a shroud having at least one side ventilation orifice, a cooler assembly disposed within the cooling compartment; the cooler assembly comprising a grill, a plenum with a heat exchanger adjacent said grill and a fan adjacent said heat exchanger, the plenum having open sides and a closed bottom to prevent air pathways through the seating region.