L'invention concerne une batterie bipolaire plomb-acide.
Selon l'invention, elle a des plaques bipolaires comprenant un substrat métallique multicouche (12) défini par C/A/B/D, la couche C ayant une couche d'un matériau positif actif (20) qui lui adhère et la couche D ayant une couche d'un matériau négatif (22) qui lui adhère, C étant choisi par un plomb, un alliage de plomb et un oxyde c...

L'invention concerne une composition pour la fabrication d'un film essentiellement biodégradable.
Cette composition comprend au moins un hydrocolloïde, un solvant aqueux, un composé plastifiant liquide et miscible avec ledit solvant, une matière tannante et un composé apte à améliorer la gélification de l'hydrocolloïde.
L'invention se rapporte également au film obtenu à partir de ce...

The address generator with zig zag scan according to the invention comprises a line address generator (100) intended for generating a line address signal which stops, increases or decreases a state present in response to an enable signal (EN), and a column address generator (200) intended for generating a column address signal which stops, increases or decreases a state present with the enable sig...

A fluid composition suitable for use as an aircraft hydraulic fluid is disclosed. The fluid composition comprises a fire resistant phosphate ester base stock comprising between about 10% and about 100% by weight of a trialkyl phosphate, between about 0% and about 70% by weight of a dialkyl aryl phosphate, and from about 0% to about 25% by weight of an alkyl diaryl phosphate, with the proviso that ...

The dashboard cover is formed as a housing, which consists of a lower part, carrying the body (2) of the housing and an upper part, carrying a closing shell (1). The body of the housing and the closing shell, together,define an enclosure (20), which is designed to contain an air distributor (4), which is formed as a cylindrical body, with mounting lugs (31) on the longitudinal axis, around which i...

A fluid composition suitable for use as an aircraft hydraulic fluid is disclosed. The fluid composition comprises a fire resistant phosphate ester base stock comprising between about 10% and about 100% by weight of a trialkyl phosphate, between about 0% and about 70% by weight of a dialkyl aryl phosphate, and from about 0% to about 25% by weight of an alkyl diaryl phosphate, with the proviso that ...

There is provided a recording/reproducing apparatus, e.g., digital video tape recorder, etc., applicable to a transmission system sufficiently utilizing communication capacity. The recording/reproducing apparatus comprises a recording element (e.g., rotary head) for recording, onto a recording medium (e.g., magnetic tape), time base compression processing implemented digital data delivered from th...

PCT No. PCT/EP93/01487 Sec. 371 Date Oct. 20, 1994 Sec. 102(e) Date Oct. 20, 1994 PCT Filed Jun. 12, 1992 PCT Pub. No. WO93/25559 PCT Pub. Date Dec. 23, 1993.The present invention provides photoactive sulfonium salts which can be employed as photoinitiators for the polymerization of cationically polymerized organic substances and are soluble in these substances.

PCT No. PCT/EP93/01487 Sec. 371 Date Oct. 20, 1994 Sec. 102(e) Date Oct. 20, 1994 PCT Filed Jun. 12, 1992 PCT Pub. No. WO93/25559 PCT Pub. Date Dec. 23, 1993.The present invention provides photoactive sulfonium salts which can be employed as photoinitiators for the polymerization of cationically polymerized organic substances and are soluble in these substances.

A ball-and-socket coupling having a first coupling member (3) and a second coupling member (4) which comprises a coupling housing having a ball cup (6), the first coupling member (3) comprising a ball member (5) insertable in the ball cup (6); a locking device (8), preferably in the form of a spring, being arranged with two pins (9, 10) which are insertable into diametrically opposite holes (11,12...

This prosthesis comprises, in combination, a femoral element (1) receiving a transverse articulation shaft (3) mounted freely rotatably with respect to a cylindrical rod (5) engaged in a vertical sheath (6) of a tibial element (2) in order to permit movements of flexion and rotation; the femoral element bears via its condylar blocks (1c), (1d) on a tibial shoulder (2b) of the element (2) by way of...

The invention relates to a device for studying and/or influencing the anchorage of implants in living biological tissue, especially hard tissue, as a response to locally supplied substances. The device consists of a anchoring element (1) for fastening in the tissue and has a central recess (3) in the form of a depot for supplying a substance whose effect on the anchorage of the implant in the tiss...

Oppfinnelsen angår en fremgangsmåte forfremstilling av varmeoppdemmende materi-ale av silikatholdig materiale, kalkhyd-rat, vann, skum og en reaktiv hurtig-sement som inneholder aluminat, som enstøpeferdig råblanding blir fremstiltav, som blir støpt i former og slik atråemnene som dannes i formene etter atde er størknet tilstrekkelig blir tattut av formene og autoklavert. For åoppnå lav tetthet på...

Physical treatment of liq. media susceptible to scale formation is effected by application of an impulse electrical field which is transmitted to the flowing liquid by induction across air without contact between the treatment apparatus and the liquid.The electrical field is pref. generated in space between two conducting plates (2,3) with different potentials (U1,U2). A primary plate (2) has a ne...

Thermal- and/or sound-insulating board characterised in that it comprises a dried mixture: - of precipitated silica consisting of a filter cake originating from the precipitating reaction and crumbled, - a reinforcing agent, - optionally, an opacifying agent. Processes for obtaining the said board from a filter cake originating from the precipitation reaction of a silica.

The method involves inserting an ultrasound probe through the oesophagus of a patient for measuring the blood flow in the aorta. The probe is connected to a control unit which processes the signals transmitted to calculate the aorta diameter assuming that its section is circular. The echo generated by ultrasound reflections in the aorta is used to evaluate the average flowing rate (Vm) of the bloo...

Application-specific integrated circuit (ASIC), comprising a microprocessor (1), at least one functional input (16) of which is connected to a functional output (15) of an electronic circuit of the ASIC, and at least one functional output (11) of which is connected to a functional input of an electronic circuit of the said ASIC, the ASIC including means (9, 30) for porting at least one functional ...

The stopper consists of a central cylinder and a series of flat rings (6) of a supple material which are stacked on the central cylinder. The rings are between 3 and 5 times the dia. of the stopper's central core, and are in the form of pleated or corrugated collars with their folds formed by sections of different thicknesses. The rings are made from a biocompatible material which has a low limit ...

The invention relates to a method of making heat-insulating material from silicate-containing (siliceous) material, calcium hydroxide (hydrated lime, slaked lime), water, foam and a rapid-setting cement containing reactive aluminates, from which there is produced a castable raw mixture which is cast into moulds, with the green bodies formed in the moulds being removed from the moulds after suffici...

The invention relates to a process for producing heat-insulating material from silicate-containing material, hydrated lime, water, foam and a reactive aluminates-containing quick-setting cement, from which a pourable raw mixture is produced which is poured into moulds, the green mouldings formed in the moulds being demoulded and autoclaved after sufficient setting. To achieve very low bulk densiti...