A synthetic lubricating oil comprising as a base oil at least one kind of a carbonic acid ester selected from the group consisting of: [I] a carbonic acid ester represented by the general formula (1) wherein R<1> and R<2> are each an alkyl or dihydric alcohol residue, R<3> is an alkylene, and a is 0 - 30, [II] a carbonic acid ester represented by the general formula (2) wherei...

An optical axis monitoring apparatus for monitoring a variation in the optical axis of light beams in an optical system. The apparatus includes a light source for generating a light beam to propagate along a first optical path. A diffraction optical element is disposed along the first optical path for diffracting the light beam into at least two orders of diffraction. At least one of the orders of...

The invention concerns a synchronous drive mechanism for roller doors or similar roller devices, the drive mechanism displacing the roller spindle along a wall-mounted bracket in which a pinion (1) is securely connected to the roller axis (8) and a spur gear (4) is rotatably mounted on the roller spindle (8), the pinion (1) engaging with a spur gear set (2, 3) which is connected to the spur gear (...

A tape-guiding device for the tape (1) passing into the wall of a roller-blind casing (2) comprises a guide housing (3) and a guide module (4) which can be introduced into the guide housing (3) and contains the tape-guiding means. The guide housing (3) covers the guide module (4) on the far side of the roller blind, in doing so leaving only a housing opening (19), serving for the through-passage o...

An igniter for a propane burner is made substantially impermeable to moisture by coating the porous ceramic igniter shell with at least one layer of an inorganic, nonmetallic coating, the coating being an alkali silicate formed from dehydrating liquid water-glass on the surface of the ceramic igniter shell.

ARTICULOS MODELO SE HACEN DE MEZCLAS DE GOMA Y PLASTICO EN LA CUAL LA GOMA ESTA EN FORMA DE DISCRETAS PARTICULAS VULCANIZADAS EN EL PLASTICO. DESPUES DE MODELAR LOS ARTICULOS, SE EXPONEN AL RADICAL LIBRE DE RELACIONES CRUZADAS QUE CONVIERTE LAS MEZCLAS DE TERMOPLASTICOS EN TERMO - SETS. CIERTAS MEZCLAS SON NUEVAS Y FORMAN PARTE DE LA INVENCION.; Shaped articles are made from blends of rubber and p...

SE DESCRIBE UN PROCEDIMIENTO PARA PRODUCIR MATERIALES CON UN REVESTIMIENTO ESTRUCTURADO TRANSFORMABLE EN CERAMICA O VIDRIO. DICHO PROCEDIMIENTO CONSISTE EN (A) APLICAR SOBRE UN ELEMENTO UNA LACA; (B) ENDURECER PARTE DE LA LACA DEPOSITADA SOBRE EL SUSTRATO MEDIANTE SECADO TERMICO Y RADIACION, EN LA QUE ZONAS PREDETERMINADAS DE LACAS SE EXPONEN A RADIACIONES TERMICAS Y (C) ELIMINAR PARTES NO ENDUREC...

EL PRESENTE INVENTO SE REFIERE A UN METODO PARA FABRICAR UN CABEZAL DE GRABACION DE CHORRO DE TINTA TENIENDO UN TRAYECTO DE TINTA COMUNICADO CON UNA ABERTURA DE DESCARGA, UN ELEMENTO GENERADOR DE ENEGIA DE DESCARGA DISPUESTO EN EL TRAYECTO DE LA TINTA Y UN PLATO CON ABERTURA DE DESCARGA SOBRE EL QUE SE FORMA LA ABERTURA DE DESCARGA Y QUE SE UNE A UNA SUPERFICIE EXTREMA DEL TRAYECTO DE LA TINTA. LA...

There is provided a novel high molecular compound having a number average molecular weight of 5,000 to 30,000 which has (a) a styrenic or acrylic monomer chain part and (b) another monomer chain part of which homopolymer being rubber, said chain part (a) and said chain part (b) being present in block-like or graft-like state, and which containing 50 % or more of said monomer chain part (a) on the ...

A method for separating chips formed on a silicon substrate is provided which uses a combination of reactive ion etching techniques combined with orientation etching to yield integrated chips having edges which can be more precisely butted together to form large area arrays.

An ink jet recording apparatus wherein an image is formed on a recording material by ejection of coloring agents having different colors from plural recording heads (110C,M,Y,BK) includes a discriminator for discriminating whether an image having a edge and an image having high image density are overlaid or not; and a controller, responsive to the discriminator, for reducing quantity of the colori...

An ink jet recording apparatus includes a liquid passage (112) for ejection of ink; a liquid chamber (108) for supplying ink to the passage; a device for mounting the recording head on the ink jet recording apparatus at an angle not more than 45 degrees relative to the horizontal plane; wherein the chamber (108) has an internal surface (105) which is slanted in a direction from an ink inlet (103) ...

A thermostat for providing control signals to a variable capacity HVAC system. The thermostat being a setback thermostat with a ramping set point for the recovery period. The thermostat monitoring the load signal required during recovery and increasing or decreasing the ramp slope accordingly.

In a circuit for use in digital mobile phones for preventing clipping of the speech signal the amplification of an adjustable amplifier (5) is attenuated with the aid of feedback from a digital signal processor (4) whenever a digital sample exceeds a clipping level more than once.

SE DESCRIBE UNA ESTRUCTURA DE MONTAJE LASER BASADO EN SILICIO, QUE PROPORCIONA INTERCONEXION PERFECCIONADA ENTRE UN DISPOSITIVO OPTICO SEMICONDUCTOR, TAL COMO UN LASER, Y UNA FUENTE DE CORRIENTE EXTERNA DE MODULACION DE ALTA FRECUENCIA, MEDIANTE LA DISMINUCION DE LA PRESENCIA DE ELEMENTOS INDUCTORES PARASITOS EN LA RED DE INTERCONEXION. LA ESTRUCTURA INCLUYE UNA LINEA DE TRANSMISION DE ESTRIAS, FO...

LA PRESENTE INVENCION PROPORCIONA UNA CAMA TERAPEUTICA QUE CONSTA DE: (A) UN ARMAZON DE MESILLA DE RUEDAS (1) QUE DISPONE DE PATAS FIJADAS AL SUELO O RUEDAS (2), (B) UN ARMAZON DE POSICIONAMIENTO (3) GIRATORIAMENTE MONTADO SOBRE EL ARMAZON DE MESILLA DE RUEDAS (1) DE MANERA QUE SEA GIRATORIO A TRAVES DE UN ARCO PREDETERMINADO ALREDEDOR DE UN EJE QUE SE EXTIENDE LONGITUDINALMENTE DESDE LA CAMA, (C)...

LA PRESENTE INVENCION SE REFIERE A UN PROCESO DE TRATAMIENTO DEL AGUA POR ELECTROLISIS, PARTICULARMENTE PARA SU DECARBONACION, ASI COMO UN APARATO PARA LA APLICACION DE ESTE PROCESO. ESTE PROCESO SE CARACTERIZA EN QUE SE ELIGE, PARA EL CATODO (1) UN METAL CUYO POTENCIAL REDOX, QUE CONSTITUYE UN POTENCIAL DE REFERENCIA QUE PERMANECE SENSIBLEMENTE CONSTANTE RESPECTO DEL AGUA, DURANTE LA ELECTROLISIS...

wherein the means for attaching and sealing said head to said body comprises: a seal means (59), a flange means (49,57), a shield means (61) and an attachment means (69). The seal means (59) functions, in compression, to prevent leakage of fluids into and from said chemical reactor vessel. The flange means (49,57) functions to impose compressive loads to the seal means to cause the seal means ...

A device for purifying water is described, which employs a filter cartridge (4) which contains material to bind impurities (contaminants). The filter cartridge (4) is inserted in the tubular socket (3) of a container for holding water. The socket (3) is closed at its bottom (6). Its inside dimensions are larger than the filter cartridge (4). Water passing through the filter cartridge (4) rises in ...

The present invention relates to compounds of the general formula (I) in which R<1>, R<2>, R<11> and R<12> are identical or different radicals of the group consisting of C1-8-alkyl, C1-8-haloalkyl, C3-6-cycloalkyl, aralkyl and aryl, and their stereoisomers, processes for their preparation and their use as endoparasiticides.