Calculi, stones, calcified tissue and other material are broken down for removal from within a body using laser pulses that are delivered via an optical fiber and have a wavelength, intensity, energy per pulse and pulse duration selected to break down the object into smaller particles without delivering energy sufficient to cause damage to other tissue.

A monoaxially or multiaxially oriented, thermofixed film made from thermoplastic polyester and having improved dimensional stability, increased abrasion resistance and better extensibility, with the features that the film contains added nucleating agent in an amount of from 0.01 to 10.0 % by weight, based on the weight of the polymer forming the film.

The invention provides a water-reducible coating composition comprising an epoxy resin, an amino group-containing curing agent for the epoxy resin and a watersoluble organic compound which occurs in at least 2 tautomeric forms, in one of which a labile hydrogen atom is linked to a carbon atom and which compound contains at least one carbonyloxy group or sulfonyl group.

A method of making self-supporting ceramic composite structures having filler embedded therein includes infiltrating a permeable mass of filler with polycrystalline material comprising an oxidation reaction product obtained by oxidation of a parent metal such as aluminum and optionally containing therein non-oxidized constituents of the parent metal. The structure is formed by placing a parent met...

The aim of this invention is to produce a design for a wind power installation which provides a sufficiently high speed for the electricity generators, without power- consuming and expensive transmission arrangements, to use low wind speeds, and moreover a rational construction method which allows service and repair and allows a low construction cost. To achieve this aim, the following design prin...

Inventia se refera la un procedeu de vopsire la interior a tevilor, metalice constînd în umplerea tevii cu vopsea formulata pentru electrodepunere la anod sau la catod, conectarea tevii la unul din polii unei surse de curent continuu, introducerea înteava, cu viteza constanta, a unui electrod liniar, coaxial cu teava, conectat la polul opus al sursei de curent continuu, mentinerea sub tensiune de ...

Inventia se refera la un procedeu de obtinere a esterilor izopropilic si izobutilic ai acidului fenilfosfinic. Metoda consta în aceea ca, în scopul cresterii vitezei de reactie, prin eliminarea acidului clorhidric din sistem, sinteza are loc prin punerea în contact a 0,08...0,5 moli de fenildiclorfosfina, de preferinta 0,1...0,3 moli, cu 0,18...1,2 moli de alcool, de preferinta 0,25...0,7 moli, la...

Inventia se refera la combinatia care contine doua centre metalice, ionul de cupru (I) si vanadiu (III) iar drept liganzi functioneaza ionul clorura, amina macrociclica 3,5,8,10 tetra-azaciclodecan si monoxidul de carbon, caracterizata prin formula [Cu(CO)(C indice 6 H indice 16 N indice 4][VCl indice 4]. Combinatia obtinuta prezinta activitate catalitica selectiva în fixarea monoxidului de carbon...

Inventia se refera la un sistem de comanda si actionare destinat aparatelor de copiat electrostatic cu placa fotoconductoare. Sistemul de comanda si actionare este format dintr-o unitate de comanda si semnalizare, o unitate logica si de temporizare, un adaptor de nivele logice a semnalelor provenite de la sesizoarele inductive de proximitate, un întrerupator static, o unitate de comanda a motorulu...

This invention relates to a diffusing device for volatile liquids to affect the immediate environment, or perfume or deodorize a room; such device comprising a bottle (1) containing the liquid for diffusion (2), in which a wick (M) is partially immersed; a cover cap (3) fitted to the said bottle by means of a snap-on system (3a), capable of being rotated but not moved in a vertical direction, and ...

An organic polymeric material, which is preferably perfluorinated and which comprises a polymeric chain and at least one group pendant from the chain, in which the group pendant from the chain comprises a saturated cyclic group and at least one ion-exchange group or group convertible thereto, and in which the ion-exchange group or group convertible thereto is linked to the polymeric chain through ...

The edges of a porous substrate plate (2) used in a fuel cell power plant are densified by impregnating a suspension of finely divided material in the interstitial spaces in the plate edges. The suspension, in the form of an "ink" is forced into the plate edges via a pressure differential applied through the plate between two press blocks (50,60). The ink is forced into the plate after a catalyst ...

The present invention is directed to the use of hetrocyclic esters of hexahydro-8-hydroxy-2,6-methano-2H-quinolizin-3(4H)-one and hexahydro-8-hydroxy-2,6-methano-2H-quinolizines as cardiac antiarrhythmic agents.

A device which occludes an area of skin has a self adhering matrix containing a topical anesthetic of the amide or ester type. A backing of polymer cloth, adhered to the matrix, drapes and stretches to conform to the wearer's movements. An aggressive adhesive forms the matrix and maintains the anesthetic in intimate contact with the skin. The anesthetic agents exhibit high activity against anaerob...

A device for testing for the presence of an analyte in a liquid, which comprises an aperture 24 through which the liquid can be introduced; a filter including a viewable reaction zone 32 which receives 1iquid through the aperture 24, and which functions to separate the analyte (if present) from the liquid, and a peripheral zone 34; absorbent means 40 associated with the peripheral zone 34, but no...

A formulation suitable for spraying or for dilution with water to form a sprayable preparation, the formulation comprising an active ingredient, optionally a carrier or solvent for the active ingredient, an emulsifier and an evaporation retardant, characterised in that the formulation satisfied the following Formula: $where\; L\; is\; less\; than\; or\; equal\; to\; 15,\; A\; =\; 700376,\; B\; =\; -1.51,\; C\; =\; 0.8472,\; M...$

An automatic function from air to water entry occurs by means of a loop (9) on an extension part (10) of the float (1). This loop and extension part separate by reason of their wt. from a hook (12) at the rear end of the float. A guide link (8) hooks into on guide corner (7), and a side plane of the float has a plate (4) narrowing towards the float rear end.

The aim of this invention is to produce a design for a wind power installation which provides a sufficiently high speed for the electricity generators, without power- consuming and expensive transmission arrangements, to use low wind speeds, and moreover a rational construction method which allows service and repair and allows a low construction cost. To achieve this aim, the following design prin...

The needles placed in pairs on the limiting surfaces of an octagonal plate are at fixed increasing distances (2,3,4,5,6,7, mm).