The present invention relates to anticonvulsant compounds useful in the treatment of epilepsy and other central nervous system disorders. The compounds of this invention have the following general formula: wherein R and R1, independently, are lower alkyl, aryl lower alkyl or phenyl, unsubstituted or substituted with at least one substituent; R2 and R3, independently, are hydrogen, lower al...

A textile yarn creel having a circular supporting framework and plural yarn package supporting members mounted removably and circumferentially slidably thereabout and axially thereof, the supporting members having plural radially inwardly extending pins for mounting of yarn packages thereon for radially inward yarn withdrawal. Guide eyelet members are mounted in a circular arrangement on the circu...

A shock wave source, especially useful for a lithotriptor, has a pressure source for the generation of a pressure wave impulse, a focusing device for focusing the pressure wave pulse, and a seal diaphragm for coupling the pressure wave pulse into the body of a patient, perhaps via a coupling body placed between the seal diaphragm and the patient. The seal diaphragm and the focusing device of the p...

Low-temperature destroyer is provided with thermoelectric modules (5), whose cold junction is in thermal contact with core (2) of cryoprobe (1). Thermoelectric modules (5) are connected in multi-stage thermoelectric cascades (4), which are arranged around the core (2) of cryoprobe (1). The cold junction of the highest stage of every cascade (4) is structurally connected with the core (2) of the cr...

An extracorporeal lithotripter with a piezoceramic pressure source which emits focused pressure waves focussed at a point within a patient at which a calculus to be disintegrated is located. A number of discrete piezoceramic elements are arranged along a curve forming an ultrasound resonator having a diameter of at least about 10 cm and a radius of curvature up to about 20 cm, and operated at an u...

An air motor (21) driven device (10) adapted for driving tools (11, 12, 13, 14) used during orthopedic surgery by rotating a driven shaft (16, 17, 18, 19) on the tool. The device (10) has first and second spaced parallel output shafts (23, 24) driven at different speeds, at least one of which shafts (23, 24) can releasably engage the driven shaft (16, 17, 18, 19) of the tool (11, 12, 13, 14). The ...

The novel process serves for the treatment of the surface of polyurethane compositions containing free NCO groups during their curing. To this end, said surface is brought into contact with a medium containing either a compound containing, per molecule, at least two hydrogen atoms which are reactive towards isocyanate or containing a compound containing, per molecule, one such reactive hydrogen at...

Hospital mattresses are generally made of foam plastic having predominantly open cell cores and are in the form of a parallel-epipedic block (1) which is provided with a protective layer (12 and 13) consisting of a plastic film which is easy to clean so that injurious substances and bacteria can be removed. Such mattresses have the drawback, however, that when used they produce sounds which are di...

System for the remote control of the antitheft protection devices of a property in a semiautomatical way consisting of a transporttable remote control including a transmitter actuated through an encoder, partially programmed during assemblage and partially programmable with hand control during operation, to control the continuous transmission of encoded messages spaced one from the other for a tim...

A coating composition for glass fibres intended for use as reinforcement in cementitious products is disclosed, which contains at least one monocyclic or polycyclic aromatic compound having at least three hydroxyl groups on the aromatic ring or (in a polycyclic compound) on at least one of the aromatic rings, together with at least one partially-cured A-stage phenolformaldehyde resin of the water-...

Process for contacting particulate solids (e.g. cracking catalyst) with a fluid (e.g. a hydrocarbons-comprising mixture) by introducing said fluid as a, preferably single, annular stream into a stream comprising the particulate solids. The invention further relates to an apparatus for contacting particulate solids with a fluid comprising a solids container (e.g. a fluid catalytic cracking riser re...

The method comprises the steps of bringing polypropylene filling bodies in a vessel into contact with a gas containing from 0.5 to 10 volume per cent of sulphur trioxide and less than 5 volume per cent of free oxygen, at a filling body temperature between 10 and 50 DEG C, the gas temperature being not more than 10 DEG C higher and not more than 35 DEG C lower than the filling body temperature, and...

A small domestic appliance is driven by means of a single-phase synchronous motor (2) whose drive shaft (5) drives a load (9), the work function being independent of the direction of rotation of the motor and the operating noise and vibrations produced by the motor being dependent on the direction of rotation of the motor. In the transmisson system a unidirectional blocking device (41) forces the ...

PURPOSE:To obtain the titled spherical particle which has excellent pressure resistance and can widely change its exclusion limit MW, by suspending a soln. of an ester of konjak mannan in an aq. medium to form liquid droplets, evaporating a solvent from the liquid droplets, saponifying the resulting product and then crosslinking the resulting saponified product. CONSTITUTION:An ester of konjak man...

The invention relates to the cocurrent gasification of coal and to a gas generator. The gas generator (11) comprises a vertical sealed vessel, the lower third of which is divided into several identical vertical compartments (12). Coal is loaded at the top (17). The major part of the hot reactive gas under pressure is introduced at the top (18), and the remaining part at lower levels (21, 22). Gas ...

This device comprises a control ring 5 duplicating the steering wheel 1 to the rear, which can move axially with respect to the steering wheel 1, and which is connected via a kinematic chain 10, 13, 22, 25 to the accelerator mechanism. The kinematic chain 10, 13, 22, 25 comprises a sliding element 10 whose sliding is achieved by rolling. The ring 5 comprises a removable means 7 for fastening to th...

METODO PARA PRODUCIR SOBRE LA SUPERFICIE DE UNA PIEDRA UN ACABADO DE BRILLO ELEVADO. COMPRENDE LAS OPERACIONES DE APLICAR UNA COMPOSICION CONDICIONADORA ACIDA A LA SUPERFICIE DE PIEDRA, LA CUAL HA DE TENER UN PH COMPRENDIDO ENTRE 0,1 Y 2,0; DE DEJAR SECAR DICHA COMPOSICION ACONDICIONADORA ACIDA SOBRE LA SUPERFICIE DE PIEDRA; Y DE APLICAR A CONTINUACION, POR PULIDO, SOBRE LA COMPOSICION ACONDICIONA...