L'invention concerne un dispositif de découpage de perforations dans des bandes en mouvement continu.
Ce dispositif comporte un couteau de perforation tournant et un cylindre à rainures dans lesquelles plongent les parties de couteau. Pour éviter un déchirage des perforations, on a relié solidement à l'arbre de couteau (1) un support (2) qui est pourvu d'un axe (4) parallèle à l'arbre de co...

PCT No. PCT/FR95/01258 Sec. 371 Date Mar. 28, 1997 Sec. 102(e) Date Mar. 28, 1997 PCT Filed Sep. 28, 1995 PCT Pub. No. WO96/09799 PCT Pub. Date Apr. 4, 1996A method of ablating or cutting tissue with a laser depending upon whether the tissue is hard or soft, including the steps of aiming a laser favoring emission of light radiation at a wavelength of 1.34 mu m at the tissue, ablating the tissue w...

The present invention relates to a heel binding (10) for a skate (12) and comprises a heel lock mechanism with a vertically pivotable locking member (20), arranged, in an actuated position, to be in contact with an edge portion of the top of the heel (34) of a skater's boot, and in a non-actuated position to be pivoted backwards away from the heel. The locking mechanism (20) is bifurcated and has ...

The present invention relates to a heel binding (10) for a skate (12) and comprises a heel lock mechanism with a vertically pivotable locking member (20), arranged, in an actuated position, to be in contact with an edge portion of the top of the heel (34) of a skater's boot, and in a non-actuated position to be pivoted backwards away from the heel. The locking mechanism (20) is bifurcated and has ...

Materials for absorbing anhydrous substances are prepd. by condensation of methylol dihydroxydiphenylmethylene ether (MDDME) isomers in the presence of an alkali metal salt.

A laminar article comprising a blend of at least one olefin polymer and at least one ethylene-vinyl alcohol copolymer. If desired, a compatibilizer may also be included in the blend. The melting point of the ethylene-vinyl alcohol copolymer having the highest melting point in the blend is at least 5 DEG C. below the melting point of the olefin polymer having the lowest melting point in the blend....

High transmission and reception quality is achieved in a high definition television system, with minimum intra-channel interference, by digitally encoding the enhancement information and employing spread-spectrum modulation techniques.

Un appareillage électrique à haute tension est logé dans une enveloppe (38) métallique remplie de gaz isolant, et est équipé d'un dispositif court-circuiteur d'arc (28) destiné à shunter les conducteurs de phase de l'appareillage en cas d'amorçage interne faisant suite à une défaillance de l'isolation gazeuse. Le dispositif court-circuiteur (28) comporte un mécanisme (60) à accumulation d'énerg...

The invention relates to particulate contrast agents, especially contrast agents for MR imaging having a metal oxide core which is preferably superparamagnetic iron oxide. The particulate contrast agents are provided with a low coating density of a polyelectrolyte coating agent selected from structural polysaccharides and synthetic polymers, especially polyaminoacids. Unlike conventional coated pa...

This invention relates to an identification method and an identification apparatus for identifying an object that enters a certain zone, comprising transmitter means (1, 7, ANT) for generating a first electromagnetic field with a predetermined frequency in the zone, and measurement means (ANT, AMP, 2, 3, 6, 7) for measuring the first field in said zone. For accomplishing an apparatus reliable and ...

A surface acoustic wave (SAW) device (300) comprising interdigital transducers (302, 304, 306) combined on acoustic tracks (308, 310). Resonant interdigital transducers (302, 304) are electrically and acoustically coupled in series on a common acoustic track (308) while anti resonant transducer (306) is electrically coupled to the series connection and located on the second acoustic track (310).

The present invention concerns a waste water purification plant which, whilst having high throughputs of waste water, ensures increased degradation of the substances present in the waste water. By virtue of a pipe system according to the invention with a turbulence arrangement (3, 5) and a reactor (8) accommodating a pipe coil system (6), the entire plant can be constructed such that its geometric...

A multistage treatment system for treating nutrient-rich water containing nitrogen compounds, phosphorous compounds, and other minerals. Three or more vessels or stages typically constitute the multistage treatment system. Each stage of the system is a reaction vessel having a first zone containing a substantially insoluble salt for precipitating phosphorous compounds and other minerals, a second ...

The present invention relates to a self-leveling aqueous composition comprising 100 parts by weight of a base material which is a mixture of cement and natural type-II anhydrous gypsum which are mixed in a weight ratio from 40/60 to 80/20, 0.1 to 3 parts by weight of an acrylic dispersant or a dispersant mixture which contains 0.1 to 3 parts by weight of an acrylic dispersant and 0.1 to 2 parts by...

When scanning an optical record carrier with a diffraction-limited scanning spot (S), the size of the effective scanning spot (S min ) can be considerably reduced by utilising the energy distribution within the scanning spot (S) in combination with a non-linear optical layer (22) in the record carrier (1) so that the resolution is increased both during reading and during writing.

A simple forward viewing ultrasound catheter includes one or more transducers and an ultrasound mirror supported by a bearing in a sealed end of a catheter with a drive cable imparting relative motion to the transducer and mirror. The mirror directs ultrasound waves forward of the catheter. An optical fiber can be provided to direct a laser beam for ablation of atheroma while under guidance of sim...

A microwave food heating package (10) includes an inner construction including a susceptor (11) which heats in the presence of microwave energy, and a carton (400) positioned around and secured with the susceptor. The carton defines a rectangular shape with an open end. A paper overwrap (404) encloses the inner construction. An outer polymeric film overwrap may be bonded to the paper overwrap (406...

The selection circuits (15A,16A) compare (21,22) the replacement address element (Xi) from the rows and columns of the principle matrix with the current address. To reduce the number of non-volatile memory cells containing the address, the selection circuits have a comparison unit (23) to find the addresses which already exist from the total which is to be memorised.

The redundant memory addressing system is applied to a principal memory (ME) organised in rows and columns and having a circuit (DEC) to decode column (or row) addresses. The redundant memory zones (RL1,RL2) are addressable by addresses of defective memory elements (CAM). The defective address memory receives an address corresponding to a defective zone of principal memory, and has a number of ce...

Device for mixing a pulverulent material into a liq. comprises (a) a hopper for holding the pulverulent material; (b) a motor-driven screw in a lower portion of the hopper for advancing the pulverulent material; and (c) a mixing body consisting of (d) a first inlet for entrance of the pulverulent material received from the hopper; (e) a second inlet for entrance of liq; (f) at least two turbines f...