This invention relates to a swivel caster fitted with rotational and swivel angle measurement sensors mounted to a driverless vehicle (10) so that the lateral motion of the vehicle can be detected and accounted for by the vehicle's navigation and guidance system. A preferred embodiment of the present invention is a driverless vehicle comprising a navigation and guidance system having an angular mo...

PCT No. PCT/DE94/00570 Sec. 371 Date Feb. 15, 1996 Sec. 102(e) Date Feb. 15, 1996 PCT Filed Dec. 12, 1994 PCT Pub. No. WO94/28074 PCT Pub. Date Dec. 8, 1995Metal pigment dispersions are proposed, which comprise flake-form metal pigments produced by crushing and binding agent or binding agent solution which contain no or less than 0.01% by weight of reaction or decomposition products of fatty acids...

The invention concerns a mechanically stable polyacrylonitrile membrane characterized in that, at an initial water pressure permeability of approximately 2000 l/m<2>h and an operating pressure of 0.3 MPa, the nominal value for compaction is >/= - 0.07.

Cryptographic methods and apparatus are disclosed relating to practical cryptographic systems for electronic transfer of information. Specifically, inventive techniques are described to allow the use of tamper-resistant computing devices without powerful processors; to guarantee security against criminals able to gain full control over computing devices of other parties; to allow value in privacy-...

Reflected imaging is used to perform non-invasive, in vivo analysis of a subject's vascular system. A raw reflected image (110) is normalized with respect to the background to form a corrected reflected image (120). An analysis image (130) is segmented from the corrected reflected image to include a scene of interest for analysis. The method and apparatus can be used to determine such characterist...

An RF ablation apparatus has a delivery catheter with a delivery catheter lumen and a delivery catheter distal end. A first RF electrode is positioned in the delivery catheter lumen. The first RF electrode has a distal end, RF conductive surface, and a lumen. A second RF electrode has a distal end. The second RF electrode is at least partially positioned in the lumen of the first catheter, with it...

A computer system that allows people to place (3), accept (4) and settle (6) bets for the purpose of communicating. The system cuts out the middlemen, sometimes referred to as the bookmaker, allowing bettors to bet with each other directly. In addition to allowing people to place, accept and settle bets, the system enables people to settle disputes and change bets. It also allows people to place s...

A granular powder of filled PTFE which has a high apparent density, a small mean particle diameter and a sharp particle size distribution, is excellent in the fluidity in a powdery state and can give molded articles being excellent in tensile strength and elongation and having low surface roughness; and a process for the production thereof. Powdered PTFE is mixed with a filler in water in the pres...

A sprayable, foam-forming, phenolic resin composition having the combination of properties of: (i) a viscosity suitable for spraying, (ii) a cure rate suitable for spraying to prevent running or sagging of sprayed foam, (iii) which when suitably cured provides a foam having a high temperature resistance, and (iv) the cured foam produces substantially non-toxic fumes when burned. The sprayable, foa...

A process for devulcanizing and functionalizing a rubber vulcanizate by desulfurization involves suspending a rubber vulcanizate crumb in a solvent which preferably swells the rubber vulcanizate before or during the devulcanization reaction and adding an alkali metal, such as sodium, to the suspension. The alkali metal cleaves mono-, di- and polysulfidic cross-linkages in the rubber vulcanizate to...

The present invention provides a closed-loop drilling system for drilling oilfield boreholes. The system includes a drilling assembly with a drill bit, a plurality of sensors for providing signals relating to parameters relating to the driling assembly, borehole, and formations around the drilling assembly. Processors in the drilling system process sensors signal and compute drilling parameters ba...

PCT No. PCT/GB93/01755 Sec. 371 Date Feb. 17, 1995 Sec. 102(e) Date Feb. 17, 1995 PCT Filed Aug. 18, 1993 PCT Pub. No. WO94/04790 PCT Pub. Date Mar. 3, 1994A protective arrangement or "junk bonnet" (30) for preventing debris entering a downhole tool assembly (14) employed in the drilling of a well. The junk bonnet (30) is in the form of an annular seal which fits around a tube (18) and inside a sl...

SE PRESENTAN NUEVOS PAPELES SINTETICOS NO EXTENDIDOS QUE ESTAN VIRTUALMENTE LIBRES DE MICROHUECOS MECANICAMENTE PRODUCIDOS Y QUE TIENEN UNA SUPERFICIE POROSA PARA ESCRIBIR E IMPRIMIR SOBRE LA MISMA. LOS PAPELES SINTETICOS NO EXTENDIDOS DE LA INVENCION SE FORMAN TIPICAMENTE EXTRUYENDO A PARTIR DE PASTILLAS UNA PELICULA O UN MATERIAL EN FORMA DE LAMINA FORMADO DE UNA MATRIZ CONTINUA DE RESINA DE OLE...

SE MUESTRA UN PROCESO PARA EL TRATAMIENTO DE PRODUCTOS DE PAPEL SANITARIO ABSORBENTE PARA SEPARAR DICHOS PRODUCTOS EN COMPONENTES DERIVADOS PARA SU RECLICADO O REUTILIZACION. LOS PRODUCTOS DE PAPEL SANITARIO ABSORBENTE INCLUYEN PAÑOS HIGIENICOS DESECHABLES, PRODUCTOS UTILIZADOS EN CASO DE INCONTINENCIA, PRODUCTOS DE HIGIENE FEMENINA, COMPRESAS DE CAMA Y OTROS PRODUCTOS ABSORBENTES Y ADSORBENTES. E...

UNA UNIDAD ELECTROQUIRURGICA (10) QUE COMBINA UN GENERADOR DE ENERGIA ELECTROQUIRURGICO Y UN SISTEMA DE RETIRADA DEL HUMO FILTRADO EN UN SOLO INSTRUMENTO COMPACTO QUE CONTIENE UN MODULO GENERADOR ELECTROQUIRURGICO (12) Y UN MODULO DE RETIRADA DE HUMOS (14). EL MODULO GENERADOR ELECTROQUIRURGICO (12) ESTA DISEÑADO ESPECIFICAMENTE PARA RECIBIR A UNA HERRAMIENTA ELECTROQUIRURGICA (73) DURANTE LOS PRO...

EL OBJETO DE LA INVENCION ES LA UTILIZACION DE POLI(ESTER-URETANO) ELABORABLE DE FORMA TERMOPLASTICA PARA MATERIALES SINTETICOS DE COMPOSTAJE, POR EJEMPLO PARA LAMINAS, CINTAS O CUERPOS DE MOLDE.; The invention relates to the use of thermoplastic poly(ester-urethanes) as compostible plastics, for example as films, tapes or mouldings.

SE PRESENTA UN SISTEMA CRIPTOGRAFICO DE CLAVE PUBLICA CON CERTIFICACION DE FIRMA DIGITAL REALZADA QUE AUTENTIFICA LA IDENTIDAD DEL POSEEDOR DE LA CLAVE. SE EMPLEA UNA JERAQUIA DE FIRMAS Y CERTIFICACIONES EMPALMADAS QUE INDICAN NIVELES DE RESPONSABILIDAD Y AUTORIDAD DEL INDIVIDUO CUYA FIRMA ESTA SIENDO CERTIFICADA. EL CERTIFICADOR AL CONSTRUIR UN CERTIFICADO GENERA UN MENSAJE ESPECIAL QUE COMPRENDE...

UN SENSOR DE TASA ANGULAR COMPRENDE UNA PLANCHA DE SILICONA (10) ATACADA CON ACIDO PARA FORMAR BRAZOS (DIAPASON) (5,6) CON DIENTES (14,16) QUE ESTAN INTERDIGITALIZADOS. LOS BRAZOS SE EXCITAN EN OSCILACION EN EL PLANO DE LA PLANCHA, APLICANDO LAS SEÑALES DE CONTROL ADECUADAS PARA CREAR FUERZAS ELECTROESTATICAS ENTRE LOS BRAZOS. LA ROTACION DE LOS BRAZOS FUERA DEL PLANO DE LA PLANCHA SE DETECTA POR ...

LA PRESENTE INVENCION PROPORCIONA UN PROCESO PARA HACER UN MOLDEADO DE PLASTICOS CURADOS INTRODUCIENDO UNA COMPOSICION DE RESINA CURABLE PRE-CALENTADA A UN MOLDE CALENTADOR EL CUAL ESTA A UNA TEMPERATURA SUFICIENTEMENTE ELEVADA PARA INICIAR LA CURACION DE LA RESINA, Y SUMINISTRANDO ADEMAS RESINA BAJO PRESION PARA COMPENSAR EL ENCOGIMIENTO DE LA COMPOSICION, EN DONDE LA RESINA CURABLE ES UNA FORMUL...

LA INVENCION SE REFIERE A UN PROCEDIMIENTO PARA EL TRATAMIENTO A PRESION DE PARTICULAS PREVIAMENTE ESPONJADAS A PARTIR DE UN POLIMERO TERMOPLASTICO POR MEDIO DE TRANSFERENCIA DE ESTAS PARTICULAS PREVIAMENTE ESPONJADAS A PARTIR DE UN RECIPIENTE (8) DE ALIMENTACION EN UN RECIPIENTE (10) DE TRATAMIENTO A PRESION, EN DONDE LAS PARTICULAS PREVIAMENTE ESPONJADAS SON ALMACENADAS EN UNA PRESION DE UN GAS ...