An apheresis apparatus and method is disclosed for increasing the purity and yield of platelets separated from donated whole blood in a centrifuge. The whole blood in the centrifuge is diluted by recirculating fluid, such as plasma or saline, at a first flow rate, to mix with further withdrawn whole blood prior to entering the centrifuge. As plasma is collected, it is recirculated through the cent...

An adapter for a centrifuge tube (T) comprises two segments (12<4>)(14<4>) that may be hinged along a hinge axis that extends perpendicular to the axis of the adapter.

LA LLANTA NEUMATICA COMPRENDE UNA SERIE DE BLOQUES, CADA UNO CON UNA REGION ESTRECHA (16) INTERPUESTA ENTRE UN GRUPO DE DOS FILTROS (14) QUE SE EXTIENDEN BASICAMENTE TRANSVERSALMENTE A LA LLANTA Y REGIONES AMPLIAS (18) COLOCADOS RESPECTIVAMENTE A AMBOS LADOS DE LA REGION ESTRECHA (16), MAS ALLA DE LOS FILTROS (14). LA DISTANCIA MEDIA H2 DE UNA SUPERFICIE DE BANDA DE RODADURA (16A) DE LA REGION EST...

UN PROCESO PARA LA PRODUCCION DE HIERRO DE MATERIALES EN BRUTO FERROSOS EN UN CONVERTIDOR QUE CONTIENE UN HIERRO INICIAL FUNDIDO DENTRO DEL CUAL AL MENOS LOS COMBUSTIBLES, GASES OXIGENADOS Y MATERIALES EN BRUTO FERROSOS SON INTRODUCIDOS DURANTE LA FASE DE PRODUCCION, LOS GASES DE REACCION SIENDO QUEMADOS DESPUES CON LOS GASES DE OXIDACION EN EL ESPACIO DE GAS DEL CONVERTIDOR SOBRE LA FUNDICION Y E...

The crusher has an elongated crusher comb (9) with heads (10) spaced so that the crusher chisels (7) engage between the heads. The heads may be flat and laminated or in the form of circular segments, their spacing ensuring that the drum (5) chisel tips engage the centre of the head spacing intervals. The centres of the heads (10) are offset relative to the comb base (16) and the interval between d...

A magnetic valve for liquid and gaseous working media, in particular for hydraulic braking systems of motor vehicles, has a first cylindrical housing part surrounded by a magnetic coil and having an inner, axial cylindrical recess for locating and guiding an armature. A tappet can be axially moved by the armature against a restoring spring. A second cylindrical part of the housing is coaxial to th...

Roving bobbin cleaner to clean a roving bobbin sleeve (1) of any clinging matter, comprises moving a cutter (6) along a unidimensional line overlaid on the tangential lie of the blade, to give a two-dimensional cutting movement. The residue (10), of the roving winding that has been at least partially severed, is removed to the rear in relation to the cutting line. Also claimed is an apparatu...

An apparatus is adapted to centrifuge and furthermore automatically handle a container (10) for separating a component, such as fibrin monomer, from plasma. The container (10) comprises a cylindrical member (11) and a piston (25) displaceable therein and comprising a tubular piston rod (12), which extends through the top wall. The piston (25) divides the cylindrical member (11) into a first chambe...

A centrifuge comprising a container (110) which includes a cylindrical member (27) and a piston comprising a piston rod (8). The piston divides the cylindrical member (27) into a first chamber (70) positioned above the piston and a second chamber positioned below the piston. The apparatus comprises a supporting turntable (101) with means for releasably retaining the cylindrical member (27), the su...

An apparatus for separating e.g., a fibrin monomer from blood includes a container (110) with a reaction chamber defined by an outer wall for receiving plasma and a means for supplying the chamber with an agent for converting the fibrinogen content of the plasma into a non-cross-linked fibrin polymer. The apparatus includes a device for centrifuging the plasma and the agent within the chamber to a...

The present invention provides an absorbent article including a fluid pervious topsheet, a fluid impervious backsheet joined to the topsheet, and an intermediate layer positioned between the topsheet and the backsheet. The topsheet comprises: a resilient, three-dimensional, macroscopically expanded, fluid pervious web including a first polymeric material which exhibits a first melting point temper...

A method and apparatus are provided for obtaining measurements from a wellbore during tripping operations. A drilling sub is attached to the drillstring adjacent to or as near as possible to the drillbit before commencing normal drilling operations. Prior to commencing tripping operations, a logging tool is engaged within the drilling sub. The engagement of the logging tool within the drilling sub...

Disclosed is a clarifier for use in treating a liquid containing non-soluble particles in suspension in order to separate these particles from the liquid. It comprises a tank, a liquid supply duct opening into the bottom portion of the tank and an injector for injecting a gas under pressure into at least part of liquid supplied to the supply duct in order to saturate this liquid with said gas and ...

A method and apparatus is disclosed for transferring flexible filamentary (FM) material from one rotating winding mandrel (44,46) to another, automatically or semi-automatically in a high speed, dual head, on-line winding apparatus (HSDHWA). A simplified transfer mechanism is provided which uses only a single transfer arm (110) and a collector arm (114) for each mandrel (44;46) which results in th...

A marking composition is laid on ground to provide a mark (16, 17) which is followed by agricultural equipment (10). The mark is coloured blue and sighted by CCD camera (20). The camera output is processed line by line in segments with pixels examined by an algorithm which determines which segment was the blue line. An indicator can signal position to an operator.; Selon l'invention, une compositi...

Ultrasonically marked c0theter for electrotherapy comprising a piezoelectric transducer (21) mounted onto a catheter and electrically connected to its proximal end with longitudinal conductors. The piezoelectric transducer electrodes are of appropriate thickness and conductivity for the ablation energy. The outside electrode (22) is either in direct contact with the tissue or, (for HF systems), co...

A driving circuit for an electroluminescence device including a plurality of driving electrodes provided on at least one electroluminescence layer, a common electrode oppositely arranged to the driving electrodes with the electroluminescence layers interposed therebetween and commonly conducted, a common voltage supplying unit for applying a common pulse voltage to the common electrode, a luminesc...

PURPOSE:To easily inject a liquid crystal material with the smaller amt. of the liquid crystal material into the liquid crystal element which is not uniform in the end faces on a liquid crystal injection hole side. CONSTITUTION:An adhesive 10 for sticking two sheets of substrates 30, 31 to each other is applied up to the outer side from the terminal on the long side of the liquid crystal injection...

Process for the conversion of a hydrocarbonaceous feedstock containing hydrocarbons having such a boiling range that an amount thereof boils at a temperature of at least 330 DEG C, which process comprises contacting the feedstock with a zeolitic catalyst comprising a zeolite with a pore diameter of 0.3 to 0.7 nm at a temperature of at most 480 DEG C and during less than 10 seconds.

UNA PELICULA DE POLIESTER UN POLIESTER QUE TIENE UNA VISCOSIDAD INTRINSECA (IV) EN EL MARGEN DE 0,65 A 0,8 Y UN ANTIOXIDANTE. EL POLIESTER TIENE UN PICO DE TEMPERATURA ENDOTERMICA ALTA A UNA TEMPERATURA DE (A) C Y UN PICO BAJO DE TEMPERATURA ENDODERMICA A UNA TEMPERATURA DE (B) C, SIENDO AMBOS PICOS MEDIDOS POR EXPLORACION CALORIMETRICA DIFERENCIAL (DSC), Y EL VALOR DE (A OLIESTER ES ADECUADA PARA...