Device for injecting a hydrocarbon feedstock into a catalytic cracking reactor, comprising, from upstream towards downstream in the direction of travel of the feedstock, a system (5) for allowing to enter and mixing the liquid hydrocarbon feedstock and steam, a venturi (6) whose converging cone (10) is connected to the said system (5) for allowing to enter and mixing, and a protective hood (7) int...

Perfluoropolyether microemulsions of the oil-in-water or water-in-oil type, consisting of perfluoropolyethers having an average molecular weight of from 1,500 to 10,000, the end groups of which are at least partially of the functionalized type, optionally containing peroxide bridges in the chain and consisting of mixtures of products having different molecular weights, of a perfluorinated surfacta...

A gear shaft assembly (42) is provided including a shaft (5) having a first set of gear teeth (6) formed integrally in a second portion (51) thereof and extensions of said teeth extend axially over an adjacent reduced diameter second portion (50) for receivably mounting a second gear (7) for rotation with the shaft.

Disclosed is an elastomeric saturated nonwoven material having compressibility and recovery in the Z-direction, good tensile properties, breathability, and abrasion resistance. The elastomeric saturated nonwoven material includes a fibrous nonwoven web such as, for example, a nonwoven web of meltblown fibers. The fibrous nonwoven web may be saturated with a polymeric material (e.g., ela...

An additive composition for use in fuel to be combusted in an internal combustion engine, the composition comprising, in admixture form: a) between about 0.05 and 25% relative weight parts of an organic peroxide, and b) between about 0.1 and 25% relative weight parts of a detergent selected from the component group that consists of: i) fatty amines ii) ethoxylated and propoxylated derivati...

PCT No. PCT/EP88/00676 Sec. 371 Date Jan. 30, 1990 Sec. 102(e) Date Jan. 30, 1990 PCT Filed Jul. 26, 1988 PCT Pub. No. WO89/01280 PCT Pub. Date Feb. 9, 1989.An apparatus for slit radiography is provided with a slot diaphragm to form a fan-shaped X-ray beam with which a body can be scanned. Controllable attenuating elements interact with the slit diaphragm to influence sectors of the fan-shaped X-r...

APARATO Y METODO PARA EL SECADO DE UÑAS ESMALTADAS, MEDIANTE LOS CUALES SE PUEDE SECAR CUALQUIER ESMALTE DE UÑAS COMERCIALMENTE DISPONIBLE, INDEPENDIENTEMENTE DE SU COLOR, UNA VEZ APLICADO A LAS UÑAS DE LAS MANOS O PIES DEL USUARIO. EL APARATO Y EL METODO CONSISTEN EN UN REVESTIMIENTO FOTO-REACTIVO Y EN UN DISPOSITIVO QUE GENERA RADIACION ULTRAVIOLETA. EL REVESTIMIENTO FOTO-REACTIVO SE APLICA SOBR...

17 ABRÉGÉ DESCRIPTIF Procédé et dispositif de caractérisation et de localisation en temps réel de singularités d'une image numérisée, notamment pour la reconnaissance de formes dans un traitement d'analyse de scène Les singularités constituant les points caractéristiques de l'image sont des points de contour à forte courbure tels que des coins ou régions de petite taille, l'image étant formée d'un...

26 ABRÉGÉ DESCRIPTIF Procédé et dispositif de localisation en temps réel de contours rectilignes dans une image numérisée, notamment pour la reconnaissance de formes dans un traitement d'analyse de scène Le dispositif comprend: des moyens d'analyse (10, 20; 10', 20) approximant, pour chaque pixel, le gradient de la fonction de niveau de gris de l'image à l'endroit de ce pixel, ce gradient étant dé...

A coated metal pipe has a zinc plate sub-layer on the surface, a fluorine resin interlayer applied on the sub-layer via a chromate film and a topcoat layer of a resinous tube of a gelled film derived from a vinyl chloride resin or of a heat shrinking vinyl chloride, polyolefin or fluorine resin via an adhesive layer, and a method for manufacturing such a coated metal pipe.

An ultrafine tube is produced by a method comprising the steps of applying a highly polymerized material on a substrate to form a resist layer on a surface of said substrate, applying a laser beam to the resist layer under such a condition that said resist layer is melted to form an ultrafine tube between the substrate and resist layer in the predetermined pattern.

A test facilitating circuit comprises an arithmetic block (LB) to be tested including an arithmetic unit for operating multiple bits as well as including various registers related to the arithmetic unit. The test facilitating circuit further comprises flip-flops (FF) for receiving data from a first pin (P1) and forming a shift register, multiplexers (M) for selectively generating control signals f...

An instruction prefetch control circuit employed an information processor is disclosed. The circuit includes a queue register, a first pointer designating an address location of the queue register into which a prefetched instruction is to be written, and a second pointer designating an address location of the queue register which stores an instruction to be read. There is further provided a third ...

A memory may contain a large number of bytes of data perhaps as many as 256 megabytes in a typical large memory structure. An error correcting code algorithm may be used to identify failing memory modules in a memory system. In a particular embodiment, a number of spares may be provided on each memory card allowing a predetermined number of defective array modules to be replaced in a storage word....

PROCEDIMIENTO DE PREPARACION DE PEPTIDOS DE SERINA-ACIDO ASPARTICO-LISINA DE FORMULA HSI2N - W - SER - ASP - LYS - X - OH (A)*C *C DONDE REPRESENTA PRO, LYS O UN ENLACE DE VALENCIA Y REPRESENTA THR, PRO O UN ENLACE DE VALENCIA. COMPRENDE HACER REACCIONAR EL MONOACIDO ( ) - OH, DONDE LOS PARENTESIS PUEDEN ESTAR VACIOS, CON LISINA PROTEGIDA CON Z = BENCILOXICARBONILO EN SU GRUPO AMINO TE...

A fluid loss additive for addition to a cement slurry used in cementing a casing string in a wellbore. The additive reduces loss of water from the slurry into the formation, resulting in a better cement job. The additive is comprised of partially hydrolyzed polyvinyl acetate polymer, calcium sulfate, a crosslinker for the polymer, and optionally a defoamer.

The present invention refers to a disposable cover for halogen light optical fiber tubes to be used in estomatology, from the type utilised on the external surface of an optical fiber tube through which the light of a halogen bulb fitted on a light emitting device flows out. This is used to put into practice the filling technique on a tooth whis is manufactured from a flexible material such as pla...

La présente invention concerne de nouveaux sulfonamides substitués, leurs sels, complexes, esters et amides physiologiquement acceptables représentés par la formule dans laquelle: R1 est un radical aryle ou un hétérocycle, éventuellement (poly)substitué; R2 et R3 sont différents; l'un des deux représente W, l'autre est hydrogène, halogène , trifluorométhyle , alkyle, cycloalkyle, alkoxy, alkylthio...

Dyed cotton garments are bleached by tumbling with an attrition-release bleaching agent comprising cemented aggregates of mineral particles with a particulate permanganate oxidizing agent distributed therein, the aggregates being in the form of solid pellets with abradable surfaces.

In a racquet, in particular, a tennis racquet, which incorporates a frame, an open and closed heart piece, and a shaft (2) that is joined to the heart piece, with the frame, heart piece and shaft being formed in one piece or connected releasably to each other, the grip (1) that is formed as a one-piece sleeve can be slid onto the shaft. The inside profile of the cross section of the grip (1) and t...