Abstract: A microfabricated structure includes a perforated stator; a first isolation layer on a first surface of the perforated stator; a second isolation layer on a second surface of the perforated stator; a first membrane on the first isolation layer; a second membrane on the second isolation layer; and a pillar coupled between the first membrane and the second membrane, wherein the first isolation layer includes a first tapered edge portion having a common surface with the first membrane, wherein the second isolation layer includes a first tapered edge portion having a common surface with the second membrane, and wherein an endpoint of the first tapered edge portion of the first isolation layer is laterally offset with respect to an endpoint of the first tapered edge portion of the second isolation layer.

Abstract: An apparatus for the implementation of a process for the continuous manufacturing of steel strips for packaging coated with a passivation layer is provided. An apparatus contains a transfer roller; a coating roller contacting the transfer roller, a surface of the coating roller having a plurality of hexagonally shaped cells with a line count being from 50 to 200 lines per centimeter and a volume being from 5·10?6 to 10·10?6 m3 per square meter of the coating roller surface; and a tank containing an aqueous passivation solution, the tank providing the aqueous passivation solution to the coating roller.

Abstract: An apparatus for the implementation of a process for the continuous manufacturing of steel strips for packaging coated with a passivation layer is provided. An apparatus contains a transfer roller; a coating roller contacting the transfer roller, a surface of the coating roller having a plurality of hexagonally shaped cells with a line count being from 50 to 200 lines per centimeter and a volume being from 5·10?6 to 10·10?6 m3 per square meter of the coating roller surface; and a tank containing an aqueous passivation solution, the tank providing the aqueous passivation solution to the coating roller.

Abstract: A process for continuous manufacturing of steel strips for packaging coated with a passivation layer is provided. The layer is an aqueous passivation solution, the thickness of which is less than 3 ?m and the viscosity of which is less than 1.5·10?3 Pa·s at 20° C., and is deposited on one of the faces of the strip. This depositing is carried out by a transfer roller in contact with the strip and with a second coating roller, the surface of which has a plurality of hexagonally shaped cells, the line count of which is between 50 and 200 lines per centimeter, and the total volume of which is between 5·10?6 and 10·10?6 m3 per square meter of roller surface. The coating roller is fed with aqueous passivation solution by dipping in a tank equipped with wiping means and the strip runs at a speed greater than or equal to 400 m/m. An apparatus for implementation of the process is also provided.

Abstract: A process for continuous manufacturing of steel strips for packaging coated with a passivation layer is provided. The layer is an aqueous passivation solution, the thickness of which is less than 3 ?m and the viscosity of which is less than 1.5·10?3 Pa·s at 20° C., and is deposited on one of the faces of the strip. This depositing is carried out by a transfer roller in contact with the strip and with a second coating roller, the surface of which has a plurality of hexagonally shaped cells, the line count of which is between 50 and 200 lines per centimeter, and the total volume of which is between 5·10?6 and 10·10?6 m3 per square meter of roller surface. The coating roller is fed with aqueous passivation solution by dipping in a tank equipped with wiping means and the strip runs at a speed greater than or equal to 400 m/m. An apparatus for implementation of the process is also provided.

Abstract: A band type clamp for securing together first and second pipe sections each having outwardly projecting flanges with opposing flange faces that extend about the circumference thereof is described. The band type clamp includes a conforming material disposed between the band type clamp and the outwardly projecting flanges and is configured to engage the outwardly projecting flanges and to exert an inwardly directed radial force thereon when the band type clamp is tightened from a first un-tightened position to a second tightened position and to radially pilot the outer surfaces and the first and second pipe sections relative to each other and the corresponding centerlines thereof.

Abstract: A band type clamp for securing together first and second pipe sections each having outwardly projecting flanges with opposing flange faces that extend about the circumference thereof is described. The band type clamp includes a conforming material disposed between the band type clamp and the outwardly projecting flanges and is configured to engage the outwardly projecting flanges and to exert an inwardly directed radial force thereon when the band type clamp is tightened from a first un-tightened position to a second tightened position and to radially pilot the outer surfaces and the first and second pipe sections relative to each other and the corresponding centerlines thereof.

Abstract: The method comprises, at a given point of the production line:producing on the sheet a known localized deformation which is such that at least in a zone of a surface of the sheet the deformation is partially plastic;evaluating in the zone of the plastically deformed surface at least one surface stress.

Abstract: The process measures a characteristic (X) which is difficult to measure of a continuously produced product and comprises:choosing at least one easily measurable second characteristic (Y) whose variations are correlated to the variations of the first characteristic;modifying, by means acting on the product in a given zone of the production line, the first characteristic so as to put it into a known predetermined reference state (X.sub.o);taking at least in said zone a measurement of the second characteristic, and;processing said measurement for determining a variation in the first characteristic relative to the reference state (X).Application in the measurement of the flatness of a strip continuously travelling through a levelling machine.FIG. 2.