Abstract: A circuits for synchronizing oscillators without settling time include a power supply voltage source (VDD), at least three coupled oscillators having respective inputs connected to a first single node, at least three inverting buffers, each inverting buffer having a respective input connected to an output of a corresponding oscillator of the at least three oscillators, at least three summing resistors, an input side of which is connected to an output side of one and only one of the at least three inverting buffers each summing resistor having a first end connected to an output of a corresponding inverting buffer of the at least three inverting buffers, and a combined output created by connecting second ends of the at least three summing resistors to a single second node.

Abstract: Disclosed in one aspect is an echo-ranging sensor system that gives reliable and accurate measurements when used in high-temperature(s), high-pressure(s), and over all hostile environment(s). An example of a novel application is for sensing, monitoring, and controlling water level measurement in boilers where the environment is extremely challenging and caustic. Although disclosed systems are not limited to the ultrasonic frequency range, many applications in which they will most likely be used would work best with transducers that operate at ultrasonic frequencies. This disclosure includes a robust and optimized mechanical and electronic design for mounting, and a design for transducers that are thermally matched and allow transmission and reception of energy with precision in harsh environments and can also be used with a controller. The system performs in high-temperature, high-pressure, and can withstand extreme conditions, such as boiling water, steam, and other gaseous substances and caustic chemicals.

Abstract: Diffuser apparatus for turbine frames and outlet guide vanes are disclosed. An example diffuser is integrated into a turbine engine. The example diffuser includes a plurality of struts extending between an inner portion and an outer portion of the turbine engine; and a plurality of flowpath surfaces supported by the plurality of struts. The example plurality of flowpath surfaces extends circumferentially within the turbine engine at a plurality of radial spans to control diffusion of air flow within the turbine engine.

Abstract: Diffuser apparatus for turbine frames and outlet guide vanes are disclosed. An example diffuser is integrated into a turbine engine. The example diffuser includes a plurality of struts extending between an inner portion and an outer portion of the turbine engine; and a plurality of flowpath surfaces supported by the plurality of struts. The example plurality of flowpath surfaces extends circumferentially within the turbine engine at a plurality of radial spans to control diffusion of air flow within the turbine engine.

Abstract: A pressure sensitive adhesive article that includes: a backing having two major surfaces, at least one of which has a pressure sensitive adhesive layer disposed thereon, the pressure sensitive adhesive layer having an average thickness of 25 microns to 50 microns and including: a styrene-isoprene-containing block copolymer including a styrene-isoprene diblock copolymer and a styrene-isoprene-styrene triblock copolymer; a tackifier; and an oil; an article that includes recycled corrugate having the pressure sensitive adhesive article adhered thereto; a method of sealing a package using the pressure sensitive adhesive article; and a method of making the pressure sensitive adhesive article.

Abstract: A fixture for holding a part comprises a frame supporting a guide plate. A controlled engagement device passes through the guide plate and is arranged to be advanced incrementally towards a first end of a fulcrum beam. A second end of the fulcrum beam is connected to a linkage arm, the linkage arm passing through a gap in the guide plate. An end of the linkage arm distal to the fulcrum beam has a swivel clamp mounted thereto. A support is arranged to face the swivel clamp and defines a space there between, the space being configured to receive a part to be clamped in the fixture.

Abstract: A kit for facilitating the mixing of ingredients in a medical office. The kit includes at least one free-standing, disposable bowl and one dual-purpose disposable spatula. Each free-standing, disposable bowl has a closed bottom for supporting the bowl in an upstanding position. An integrally molded, radially, outwardly extending planar lip around the periphery of the top imparts rigidity to the bowl. The free-standing disposable bowl can then be used for mixing ingredients without the requirement for any additional support structure. The dual-purpose spatula has one shape that conforms to the bowl for optimizing the mixing of one set of ingredients and another shape at the other end thereof for optimizing the mixing of other ingredients.