The fitting comprises a housing part (1) let into one component and holding a clamping member (5) and a connecting bolt (3) adapted to be anchored in the other component. The clamping member (5) comprises cylindrical guide faces (7, 8) on respective ends while in its middle portion notched teeth (6) are machined. The connecting bolt is provided, at its end portion with grooved or threaded-like tee...

A gas mixture for use in the selective dry etching of a nitride insulator layer (16) relative to an oxide insulator layer (12) formed on a silicium substrate (10) comprising: a gas mixture containing chlorine and oxygen. The oxygen in this gas mixture must comprise 15% or less by volume. In a preferred process embodiment for etching Si3N4 and leaving a layer of SiO2 therebelow, Cl2 gas may be used...

A half current switch comprising: at least one input transistor (16), a load resistance (42, 44) connected between a first voltage reference and the collector of the input transistor, a constant-current resistance (32) connected between the emitter of the input transistor and a second voltage reference, and a feedback means including at least one feedback connected to the constant-current resistan...

A speed changer pulley comprises two annular flanges one of which is movable axially on a hub under the control of elastic return member constituted by at least one diaphragm encased with a covering of resilient material. The peripheral part of the diaphragm is prolonged radially outwardly by a rim of resilient material fitted into a housing in the movable flange.

A thermoelectric semiconductor multicouple array comprises a substrate of semi-insulating material 10, alternate n-type and p-type strips or legs ion implanted into said substrate and connected together electrically in series, and terminal means 11 connected to said series-connected strips or legs. The array may be incorporated in an integrated circuit chip. A method of making such thermoelectric ...

PURPOSE:To aim at uniformly radiating infrared rays and at compacting a hair treatment promoting device by providing a reflector for reflecting infrared rays radiated from a heater, a rotary member attached with the reflector and a drive means for rotating the rotary member. CONSTITUTION:A heater 14 is composed of a thin pipe made of quartz glass, ceramic or the like, and a heating wire 16 dispose...

PURPOSE:To make it possible to set the frequency range which emphasizes image signals so as to suitably emphasize a contour of a specific part of an image object by providing a contour emphasizing means for image signals and a means for selectively setting a frequency range which emphasizes a contour in the contour emphasizing means. CONSTITUTION:Reflecting light in accordance with red, green and ...

PURPOSE: To improve a strength and a rigidity and to facilitate a molding by forming an upgraded base structure for generating a minimum strain controlled against an internal pressure. CONSTITUTION: Both a container 10 and an intermediate article 12 each suitably has a champagne type base portion 16 having a low biaxially molecular orientation. An outer peripheral wall 25 integrally extended from ...

A process for the preparation of a compound of formula (I): which comprises the reaction of a methylating agent with a compound of formula (IV): in a polar solvent in which is dissolved an alkali metal alkoxide.

Novel compounds of formula (I), processes for their preparation, and their use as pharmaceutical agents are described: in which p represents an integer of 2 to 4; r represents an integer of 1 or 2; s represents 0 or 1; and X represents a group in which A1 is oxygen or sulphur, one of A2 and A3 is CR1 and the other is nitrogen or CR2, or A2 is oxygen or sulphur, A1 is CH and A3 is CR1...

Use of perfluoropolyethers having perfluoroalkyl end groups with a molecular weight ranging from 500 to 1500, in amounts from 0.5 to 3 parts by weight for 100 parts by weight of elastomer and optionally in combination with polytetrafluoroethylene having a lower molecular weight of about 200,000, as additives to the polymerization latex of rubbers vulcanizable by means of peroxides in order to impr...