Abstract: A vertical cavity surface emitting laser (VCSEL) and monitoring diode combination having reduced parasitic capacitance for use in high bandwidth communications systems. The VCSEL has both p-type and n-type contacts on the same face. This allows the VCSEL to be mounted on a monitor chip or diode without using a metal contact layer. In an embodiment wherein the VCSEL is soldered to the monitor chip for mechanical stability only a small metal pad no larger than the VCSEL is used. The reduction in metallisation results in a lower parasitic capacitance that in turn results in higher potential operational speeds.

Abstract: An inflator for an air-bag has two gas chambers mounted on a central block (1). The central block defines passages leading from the gas chambers to the air-bag, but the passages are initially sealed by closures . An ignitor mounted on the block can generate hot gas to move an actuating element in a predetermined direction, the actuating element having a conical face which acts on inclined faces of two opening elements which are thus moved apart to rupture the closures to permit gas to flow from the chambers into the air-bag. Finally gas from the ignitor can also flow through a passage into the air-bag to ignite the mixed gases from the two gas chambers.

Abstract: An inhalation device for administering a powdered medicament by inhalation including a suction tube through which the medicament is drawn on inhalation by a user, a blister pack, a housing which carries the blister pack and has housing surfaces, the suction tube being removably connected to the housing and having a distal end which can interact with the blister pack and a proximal end through which the user inhales, and a resilient member that resiliently biases the suction tube into a position where it is spaced from the housing surfaces to facilitate grasping of the suction tube by the user when the inhalation device is ready for use.

Abstract: The present invention relates to an inhalation device for administering a powdered medicament by inhalation. The inhalation device (1) comprises a suction tube (4) through which the medicament is drawn on inhalation by a user and a blister pack assembly (5). The suction tube (4) has a distal end (7) which interacts with the blister pack assembly (5) and a proximal end (8) through which the user inhales. The inhalation device (1) is also provided with biasing means (6) which raise the suction tube (4) away from the blister pack assembly (5).

Abstract: An inflator for an air-bag has two gas chambers mounted on a central block (1). The central block defines passages leading from the gas chambers to the air-bag, but the passages are initially sealed by closures . An ignitor mounted on the block can generate hot gas to move an actuating element in a predetermined direction, the actuating element having a conical face which acts on inclined faces of two opening elements which are thus moved apart to rupture the closures to permit gas to flow from the chambers into the air-bag. Finally gas from the ignitor can also flow through a passage into the air-bag to ignite the mixed gases from the two gas chambers.

Abstract: A vertical cavity surface emitting laser (VCSEL) and monitoring diode combination having reduced parasitic capacitance for use in high bandwidth communications systems. The VCSEL has both p-type and n-type contacts on the same face. This allows the VCSEL to be mounted on a monitor chip or diode without using a metal contact layer. In an embodiment wherein the VCSEL is soldered to the monitor chip for mechanical stability only a small metal pad no larger than the VCSEL is used.

Abstract: A vertical cavity surface emitting laser (VCSEL) and monitoring diode combination having reduced parasitic capacitance for use in high bandwidth communications systems. The VCSEL has both p-type and n-type contacts on the same face. This allows the VCSEL to be mounted on a monitor chip or diode without using a metal contact layer. In an embodiment wherein the VCSEL is soldered to the monitor chip for mechanical stability only a small metal pad no larger than the VCSEL is used.

Abstract: A top surface emitting vertical cavity laser with enhanced power handling capacity. The laser provides a patterned top electrode for uniformly injecting applied current to the active area. The diameter of the electrode relative to the vertical distance between it and the active layer is reduced by patterning. The result is an improved laser with significant power output.

Abstract: A method of fabricating a semiconductor device having active components grown on a substrate, involves providing a semiconductor substrate on which the active components are grown, and doping the semiconductor substrate to render it non conductive and thereby reduce parasitic capacitance between active components thereon. The components typically comprise a VCSEL and monitor. The doped substrate reduces parasitic capacitance.

Abstract: An apparatus for flow field flow (FFF) fractionation comprises: a porous hollow fiber (1) which extends longitudinally between end-fittings (2, 3) of a tube (4), one end of said fiber (1) being connected to a first pump (5) for pumping a first carrier liquid into said fiber (1) via a valve (9) for introducing a liquid sample to be fractionated, the other end of said fiber (1) being connected to a container for a second carrier liquid via a flow-through detector (11), for detecting fractions of said sample; a second pump (12) which is connected to the interspace between the tube (4) and the fiber (1) to pump out carrier fluid through the porous fiber wall; and a control unit (6) which is adapted to control said first pump (5) to have a flower flow rate than said second pump (12) during injection and relaxation of the sample, and a higher flow rate than said second pump (12) to elute the sample; and a method for FFF fractionation in a hollow fiber utilizing the steps of sample application, relaxation, flow rest

Abstract: A cheese grating tool comprises a handle shaft (1) and a plate (2) connected thereto. The plate (2) comprises a generally single-curved portion (22) with a plurality of apertures (31) which are distributed over the width of the blade (2) generally in the region of said curved portion which is remote from the handle shaft. Each of said apertures is delimited by a scope (32), which projects from the convex side of the curved plate portion (22). The scopes are parallel as seen in the plate plane and the scope edges face generally toward the handle shaft. The scope axis extends obliquely to the adjacent plate surface.