The present invention discloses a planishing method for joined sheets made of a thermoplastic material. Welded ends of the plastic sheets are placed between two platens. The platens are heated to raise the temperature of the plastic material a sufficient amount to soften the plastic material without disturbing its molecular structure. The platens are pressed together with a sufficient pressure whi...

The invention concerns a method and an apparatus for the automatic control of a guided vehicle (2) and proposes a new safety concept which, if breakdowns and/or emergencies arise, prevents the vehicle from being stopped in tunnels, on bridges or on pathless terrain. The invention lies in that between preselected stopping regions (11, 12, 13) provided with system for evaluation of passengers and fo...

The invention relates to a housing for a card reader. It concerns a housing of the type which comprises a body (14) delimiting a substantially planar runway for the movement of a card, and an opening (24), formed in the front face and providing access to the runway; according to the invention, a shutter device (68) intended to prevent the passage of a card (12) into the runway is placed in proximi...

La pose de tronçons 40 de fil 4 est assurée par un tuyau de pose 30 qui reçoit le fil en disposant son entrée en regard de la sortie d'un distributeur de fil dont le couteau 85 coupe le fil juste en amont du tuyau de pose 30. A l'extrémité du tuyau de pose 30, est disposée une tête de pose 32 que l'on déplace transversalement le long du support 1 sur lequel on construit le renforcement. L'angle...

The stamp is made by isolating by means of ultraviolet rays a section of a photopolymer which is hardened by the effects of the rays and then removing the non-hardened zones. The isolation is provided by a mask of continuous film (5) carrying a negative version of the motif to be created on the stamp, and placing the film between the source (7) of UV rays and the photopolymer The negative version ...

The subject of the present invention is a process for the treatment of the acidic effluents resulting from the manufacture of titanium oxide pigments according to a sulphuric process, including a preliminary stage for the removal of all or part of the free acidity of the said effluents, characterised in that it additionally comprises the following stages: a) neutralisation of the suspension or of ...

Process for cementing oil wells, gas wells or geothermal wells, according to which a suitable drilling fluid is injected under appropriate conditions, optionally followed by a buffer fluid and, finally, a composition comprising water, a cement, at least one viscosifying additive, optionally at least one retardant compound and optionally at least one silica, characterised in that the said additive ...

PCT No. PCT/FR91/00862 Sec. 371 Date Apr. 28, 1994 Sec. 102(e) Date Apr. 28, 1994 PCT Filed Nov. 5, 1991 PCT Pub. No. WO93/09579 PCT Pub. Date May 13, 1993.An unearthed two-pin electric plug is provided. To avoid the need for tools when wiring, the plug includes a blade (2,22,62) rotating about the axis of a hinge (1) which is parallel or perpendicular to the axis of the electric lead. In the two ...

A process is claimed for the fabrication of a component in a composite material with a non-organic matrix in which a flexible film is at first produced, formed from a staggered mesh of parallel filaments coated with a matrix forming material, these filaments being bound by a temporary rigidified binder. Sheets cut in the flexible film are then wrapped in order to form a pile from which a preform i...

In repairing a thermoplastic unit or article, to restore its original visual and solid state, the article is welded, glued or reshaped, and ground, followed by (a) application and drying of a prod. (A), (b) application, hardening and grinding of a prod. (B), (c) application of a prod. (C) onto the ground scratches, and drying, (d) application, hardening and grinding of a prod. (D, (e) application ...

The applicator unit comprises: a container (2) containing a pasty cosmetic product (3), this container being equipped with a neck (6); a cap (8) equipped with means for fastening on the neck (6) and carrying a rod (11) at the end of which an applicator member (12) is provided; a rotatably-mounted agitator element (A) and means for driving this agitator element (A) in rotation. The said agitator el...

L'invention concerne un système d'antivol électronique, possédant une commande de portes électriques, pour un véhicule à moteur. Ce système va permettre de substituer les serrures des portes ainsi que la clef de contact par une télécommande à infrarouges; celle-ci sera de faibles dimensions et portable; apportant un effet dissuasif aux importuns, vu que l'éventuel voleur n'aura aucun pouvoir d'...

The instrument consists of a closed excitation chamber (1) in which a pressure variation is created by means of an energy source in a second chamber (2). The pressure variation is transmitted through a duct (3) of small diameter to an open measuring chamber (4). When a surface (7) being tested closes the chamber (4), the pressure inside the chamber can be measured by a sensor (5), e.g. linked to a...

The semiconductor device such as a MOSFET comprises a channel 2, a gate electrode 3, a source or drains and insulating layers 11-13, at least one of which is made of a material capable of conducting heat. The material may be ALN or BN and the gate insulator 4 may also be heat conductive. An assembly of semi conductor devices cooled by a layer of heat conductive material is also described. Air or l...

The invention relates to orthopaedic surgery in which a prosthesis is fixed by a surgical cement in the bone. The obturator according to the invention avoids penetration of the cement more deeply than necessary, by virtue of its semirigid consistency obtained by virtue of its design. It has, in fact, a slot (5) between each wing which gives it its elasticity, allowing holding in position in the me...

2', 3'-Dideoxy purine nucleosides represented by following general formulae [I] and/or [II] [I] [II] (wherein X and Y indicate nitrogen atoms or carbon atoms and R1, R2, R3, R4 and R5 indicate each independently any of hydrogen atom, hydroxyl group, amino group, alkyl group, halogen atom, alkoxy group and mercapto group), process for the preparation thereof and applications th...

The present invention relates, as new industrial products, to the benzopyran-2-one-ss-D-thioxylosides of formula: in which: - X represents a sulphur atom or an oxygen atom, - R1 and R2, which are identical or different, each represent a hydrogen atom, a C1-C4-alkyl group, a halogen atom, a trifluoromethyl group, a phenyl group, it being possible for R1 and R2, taken together, to form ...

Amphiphilic derivatives of amino acids or peptides are provided, comprising a polyhydroxylated hydrophilic part derived from a sugar, from a polyol, from an aminopolyol or from an oligosaccharide, and at least one hydrophobic part derived from a hydrocarbon, fluorocarbon, or a mixed fluorocarbon/hydrocarbon, saturated or unsaturated, having from 5 to 20 carbon atoms, the hydrophobic part(s) being ...

The tap comprises a closure member (22) in a chamber (20) at the intersection of an axial inlet channel (14) and a radial outlet channel (16), and a valve intended to contain a specific residual pressure in the bottle through the action of a spring (44). This valve consists of an annular cylindrical piston (38) fitted in a leaktight manner in the said chamber (20) downstream of the closure member ...

a) Procédé combiné pour la gazéification de matières résiduelles et/ou de matières de rejet solides, pâteuses et liquides,
b) Procédé caractérisé en ce que 1 à 80 % de matières résiduaires et/ou de déchets solides ou bien 1 à 60 % de ces matières solides et/ou 1 à 20 % de ces matières pâteuses, contenant du carbone avec des substances nuisibles organiques et/ou inorganiques, sont converti...