Abstract: There is disclosed a former head (1) with rotating drums (9, 10), in which is mounted needle rollers (11, 12), and which is used in dry forming of fibrous web or tissue (4). The drums (9, 10) are composed of at least two semi-cylindrical segments (9A, 9B; 10A, 10B) readily separating in axial direction, and which are mounted on a bearing ring (14) protruding into the drums (9, 10). The drum segments are held together on the bearing ring (14) by means of a segmented clamping ring (18). By such design, it is possible to perform rapid mounting and dismounting of the drum without need for dismounting the needle rollers (11, 12).

Abstract: Briefly, techniques to couple differential amplifiers with a low RC time constant and provide minimal common mode voltage reduction.

Abstract: A method and apparatus is described for use in dry forming a fabric by at least two non-woven fabrics. The upper run of the transfer wire is used as a forming wire. A forming head is disposed above the transfer wire. An airlaid non-woven fabric is formed on the transfer wire. This non-woven fabric is carried with the transfer wire onto the top side of the first non-woven fabric. The first non-woven fabric is formed on a preceding forming wire and transferred by the transfer wire to a subsequent conveying wire. This subsequent conveying wire can also be a forming wire so further non-woven fabric can be formed before the fabric is consolidated, e.g. by hydroentanglement or latex bonding/fibre bonding.

Abstract: Briefly, an oscillator device with impedance elements to prevent premature improper biasing of transistor nodes and to increase the maximum possible peak-to-peak signal swing.

Abstract: Briefly, an oscillator device with impedance elements to prevent premature improper biasing of transistor nodes and to increase the maximum possible peak-to-peak signal swing.

Abstract: Apparatus and systems, as well as methods and articles, may operate to power a human-computer interface device with a radio frequency field. A radio frequency identification tag may be used to transmit device position information.

Abstract: Briefly, an oscillator device with impedance elements to prevent premature improper biasing of transistor nodes and to increase the maximum possible peak-to-peak signal swing.

Abstract: Briefly, techniques to couple differential amplifiers with a low RC time constant at minimal common mode voltage reduction.

Abstract: Briefly, an oscillator device with impedance elements to prevent premature improper biasing of transistor nodes and to increase the maximum possible peak-to-peak signal swing.