Technomed International

Institut National De La Sante Et De La Recherche Medicale

Seb S.a.

Iserm

Paul Dancer

Maurice Bourlion

Dominique Cathignol

Jean-Louis Mestas

Francois Lacoste

Fabien David

The invention concerns a device for separating and collecting waste driven by an air stream, comprising an intake duct () emerging along a tangential direction in a waste separating chamber () defining an internal volume having substantially the shape of a cylinder, in the central part of said chamber () is arranged at least an opening () emerging onto a duct connected to a suction unit, said chamber () having a channel () for evacuating waste along a radial direction, said channel () being connected to a sealed pan () collecting centrifuged waste, the air intake channel () and the waste evacuating channel () being arranged substantially at the same height in the waste separating chamber (). The invention is characterized in that the diametrical section of the chamber () ranges between twice and ten times the smallest cross-section of the channel carrying waste from the nozzle.

Waste separating device for vacuum cleaner

The invention relates to a method and to apparatus determining the exact position of a target relative to a reference of known co-ordinates. The apparatus comprises a source of radiation for forming an image of a target, which image is received by a receiver device situated beyond the target. A mask-forming device is interposed between the receiver device and the source of radiation, the mask-forming device including at least one localization means of known position relative to a reference point and suitable for forming an image in said image-forming radiation, means are also provided for displacing the radiation source in three dimensions, at least between two different angular positions, thereby displacing the co-ordinates of two different images of the target obtained from the two different angular positions of the source. The invention makes it possible to determine the exact position of a target with a very high degree of precision using a method which is simple and which limits the radiation dose. The target may be a cell or a stone or a bone to be treated.

Method and apparatus for determining the position of a target relative

The present invention relates to a method and a device for producing an electric discharge between two electrodes. This method characterized in that the resistance to the passage of the electric arc, at least between the electrodes, is considerably reduced so as to bring it to a resistance value near to or slightly higher than the critical resistance, by interposing at least between the electrodes, an electrically conductive electrolyte contained in an essentially closed reservoir surrounding the electrodes. The invention makes it possible to improve the rate of discharge of an electric current produced between the electrodes, by eliminating substantially completely the latency time.

Method and device interposing an electrically conductive liquid between

A process for degassing a coupling liquid is disclosed, comprising adding to said coupling liquid at least one chemical substance readily taking up gas in a sufficient quantity to absorb said gas substantially completely. This chemical substance is preferably a sulfite of alkaline- or alkaline-earth metal. The invention makes it possible to obtain pressure values of the pressure waves greater than those obtained by conventional physical degassing.

Process for degassing a coupling liquid of a pressure wave generator

The invention relates to an electrical discharge circuit between two electrodes. The circuit includes switch means connected in parallel between the electrodes and constituting a switch that is closed for low frequency currents and that is open for high frequency currents. The discharge circuit may be used to detect and correct the position of an electrode at will, in manner that is simple, reliable, cheap, and suitable for being automated.

Discharge circuit, and use thereof in a method and in apparatus for

The present invention relates to a method and device for discharging an electric current between two electrodes, comprising considerably reducing the resistance to the passage of electric current at least between the electrodes so as to bring it to a resistance value near to or slightly higher than the critical resistance by interposing a conductive electrolyte between electrodes. This improves the rate of discharge of an electric current produced between the electrodes, by eliminating substantially completely the latency time.

Growing community of inventors

Saint-Etienne, France

Paul Dancer