Abstract: A windshield wiper, in which an element of the frame of the wiper blade is articulated on the end of a wiper arm by a connector that is articulated on the frame. The connector includes a substantially inverted U-shaped front body which overlaps onto the center part of the hinge of the frame, such that the longitudinally sliding connector is accommodated in the front end of the arm. The connector includes a lock mechanism that locks in a longitudinally direction in relation to the arm. The connector also includes a retaining rod extending vertically with clearance through a hole that is dead center with the center part of the hinge of the frame element.

Abstract: The invention relates to an obturating stopper plug as well as to a method of manufacture of this stopper plug.The stopper plug for obturating any opening (2) and comprising a bead of heat-fusible adhesive (7) deposited upon the said stopper plug is characterized in that the bead of heat-fusible adhesive (7) comprises:(a) an adhesive mixture,(b) a cross-linking agent,(c) an expansion agent decomposing at a temperature close to the cross-linking temperature of the adhesive mixture (a),(d) additives for working purposes.The invention is applicable to the obturation, for example, of an opening in a plate to be passed into a drying oven for paint.

Abstract: A block copolymer containing composition to be used for air bag covers, comprising 100 parts by weight of a selectively hydrogenated block copolymer of a monovinyl aromatic monomer and a conjugated diene, 50-250 parts by weight of a poly(olefin) resin, optionallyt 0-100 parts by weight of a filler having an average particle size of at most 50.mu., and 0.25-2.5 parts by weight of antioxidant/UV stabilizer additives, and air bag covers containing the block copolymer composition.

Abstract: A comolded multi-layered polymer blend system, comprising:at least two layers, each layer having a continuous polymer network of an optionally hydrogenated block copolymer which comprise at least two terminal polymonovinylaromatic blocks and at least one central polyconjugated diene block, and at least one of said layers comprising the continuous polymer network of the block copolymer further comprises a co-continuous rigid polymer phase consisting of a homopolyalkylene or a copolymer of alkylenes having from 2 to 10 carbon atoms;wherein the two layers are in intimate contact with each other;wherein the layers have different contents by weight of the block copolymers; andwherein an extender is present in each polymer network such that the final weight ratio of the block copolymer and the extender in each layer is the same.This comolded multi-layer polymer blend system is used to make air bags for automotive safety systems.

Abstract: An extraction cell of the centrifugal type for a hot beverage preparation machine, including a grounds collection drum on which is mounted, in a sealed manner by a sealing structure, a cover provided with a liquid delivery orifice, and a filtration structure, wherein the filtration structure and the sealing structure are constituted by at least one deformable joint, or seal, interposed in a groove between the drum and cover, the joint having deformation properties, and being mounted to be compressed by an amount which is in a pre-established compression range with the aid of a compression controlling means, to insure that below a pre-established operating pressure existing in the cell, fluid tightness of the cell is maintained, and beyond that pressure, filtration of the grounds-liquid mixture occurs by deformation of the joint.

Abstract: Calls are made in known manner between terminals in the form of information-carrying modulation applied to emission waves that travel along common transmission lines. An emission frequency (F(2P-1)) is allocated to each terminal for each call. According to the invention, a marking wave is supplied to all of the terminals while no call is yet being set up, thereby marking an emission frequency. When a new call is being set up, the marked frequency is allocated for the new call to at least one of the terminals that are to participate in the call. The invention is particularly applicable to communications by means of optical fibers.

Abstract: A syringe pump is disclosed having a transducer for detecting the force on the syringe pusher. The detected force is translated into a pressure which is continuously displayed so that the user can anticipate the occurrence of an occlusion. The syringe pump also has a device for pre-selecting a range of acceptable pressures.

Abstract: The optical filter device comprises a stack of thin layers exhibiting a sequences h and g which defines a fractal organization. This device makes it possible to obtain spectrum lines which are extremely fine and very well resolved.

Abstract: A method and apparatus for making multi-layered plastic tube reinforced with fibers by a co-extrusion process. The method and apparatus provide more specifically a multi-layered plastic tube with an intermediate layer thereof having discrete fibers where at least a major portion of the fibers is oriented to extend predominantly in a general direction lying between the circumferential and the longitudinal axis of the tube with the orientation of the fibers being generally the same throughout the thickness of the intermediate layer.

Abstract: The invention improves detecting that a control cluster has fallen into the reactor of a nuclear fission power station. Variations are monitored firstly in the nuclear power (3) and secondly in at least one parameter (1, 2) external to the reactor and having an influence on reactor control. A cluster is considered as having fallen when a rapid drop (12j) is detected in said power while no variation (12a, 12b, . . . 12h) is simultaneously detected in an external parameter that could have given rise to said power drop.Application to producing electricity.

Abstract: The process for producing killed steel having a low content of nitrogen comprises pouring an effervescent steel from a converter into a ladle in which there are added to the molten steel contained in the ladle, in the course of the pouring operation, additives for killing the steel, such as aluminium, silicon, etc. . . . The invention comprises pouring the effervescent steel into the ladle before introducing the killing additives, and prior to the introduction of the killing additives carbon dioxide in the form of carbon dioxide snow in the vicinity of the lower part of the pouring jet and on the surface of the bath of steel in the ladle in a quantity sufficient to protect the surface of the molten metal from the surrounding air upon the introduction of the killing additives into the ladle.