An antithrombotic medical material comprises a high-molecular substrate (e.g. cellulose, chitosan, collagen or fibroin) to which heparin is bound by means of an epoxy compound which can react both with the amino groups of the heparin and with reactive groups on the substrate (e.g. amino, hydroxy, carboxy or mercapto). The epoxy compound is pref. a diglycidyl compound such as 1,4-butanediol diglyci...

PCT No. PCT/FI87/00165 Sec. 371 Date May 25, 1989 Sec. 102(e) Date May 25, 1989 PCT Filed Dec. 10, 1987 PCT Pub. No. WO88/04265 PCT Pub. Date Jun. 16, 1988.Package of preferably self-adhesive abrasive material (1), comprising circular disks or sheets, which are attached to each other to make a connected unit, which is folded together to make a bundle (3) so that all the abrasive material sheets or...

Pin retainer assembly having a keeper means for retaining earthworking tips on adapters. Positive retention of earthworking tips on their adapters by their retaining pins during its work cycle is extremely important from an operational as well as a cost standpoint. The loss of the tips materially affect productions in addition to the time consuming expense of replacement of repair of the component...

A conversion device is provided which permits an existing self-contained meat patty forming machine to be adapted for use with a separate, high capacity meat pump, so as to increase the output capacity of the patty former. The conversion structure includes an elongated, apertured meat delivery tube adapted to be used in lieu of an existing pivotal valving tube provided with the original machine, t...

A ski boot has a lower part and an upper articulated on the lower part at two opposite points which coincide with the joint of the foot. The rear part of the upper has a rounded cutaway portion which permits ample backward tilting. This cutaway portion is preferably covered by an articulated stirrup-shaped shroud connected to the upper by a rigid linking member.

To clean industrial and communal sewage with an adsorption agent and to recover the adsorbed material, the adsorption material is a mied combination of materials with different water cleaning functions to be spread in powder form over the moving water. After a given dwell time, the clear water and the hydroxide sludge are sepd. The sludge is then dried and/or compressed and passed to a recycling s...

The mechanical gripping and manipulating hand is particularly for surgical use in inaccessible areas. It has bars or tubes (2) for the individual fingers (6) of the surgeon, and of elastic material. These are under load, but movable individually in a guide tube (1), and expand into shape on being thrust out by the individual fingers. Where they are tubes, they can be filled with non-compressible l...

The invention concerns a therapeutic shoe for use in medical treatment by application of an undulating electromagnetic field (5). This shoe is characterised in that this undulating electromagnetic field is of the type having light waves generated by light sources such as electric lamps (9) supplied with energy by very low voltage electric batteries (18), these electric lamps (9) being disposed in ...

The hob (6) of the induction hob consists of plastic and can be part of a continuous work surface, of an oven (stove) trough or of the draining surface (5) of a kitchen sink (1).

The hydrolysis of carbonyl sulphide is efficiently catalytically intensified by sintered titanium dioxide particles (scrub solids) which are chiefly used for preventing wall encrustations in titanium dioxide preparation by the chloride process. It is particularly expedient when the sintered titanium dioxide particles are wetted with sodium hydroxide or sodium aluminate; such a treatment also makes...

A rail vehicle wheel comprises a wheel centre (1), a flanged tyre (2), a rubber ring (3) between the wheel centre and the tyre, and a pressure ring (4). The rubber ring consists of an annular, axial body (3') and at each side thereof a flange (3''), which forms an angle of for example 60 DEG with the wheel axis.

The hydrolysis of carbonyl sulphide is efficiently catalytically intensified by sintered titanium dioxide particles (scrub solids) which are chiefly used for preventing wall encrustations in titanium dioxide preparation by the chloride process. It is particularly expedient when the sintered titanium dioxide particles are wetted with sodium hydroxide or sodium aluminate; such a treatment also makes...

A planar reference electrode for chemical sensors which can be supplied with a test liquid and a calibration liquid, has the following components: a pick-up electrode located on a planar substrate, a layer which covers the substrate in the vicinity of the pick-up electrode and is made of a patterned polymer having at least one groove which acts as a diffusion channel and extends in a lateral d...

An improved method and apparatus for filtration includes an outer stationary body (10), an inner rotating body (12) defining a gap with the outer body for receiving a fluid sample (14), the surface of one of the bodies defining the gap being a filter. The rotation of the inner body creates Taylor vortice which continuously displace occluded solute on the filter surface. The filter can be a membran...

Liq. container (1) has a distortable body (2) and a closure (3) at the outlet with at least one valve and a filter (5) at the base (6) of the container (1). The longitudinal axis of the outlet (3) is parallel to the side sections (20) of the container body (2). The base (6) of the body (2) runs across and/or generally at right angles to the side sections (29) to the outlet connection (3). The outl...

Stacks of paper sheets (3) are transported from a sheeter into a wrapper by the upper reach of an endless infeed conveyor. The front end faces of successive stacks catch up with and are decelerated by successive flights (8) on an endless second conveyor (7) which is driven at a speed less than the speed of the corresponding section of the infeed conveyor. This ensures that the dimensions of so-cal...

The present invention relates to a wheel hub cap. This wheel hub cap can be fixed to the wheel rim of a vehicle through an intermediate elastically deformable ring (2) which is interrupted (5) to form two free ends (5a) joined by a wire forming a spring (6) permitting the radial deformation of the ring, while a bar (10), of the same substance or moulding, connects at both its ends (11) with t...

The method is for increasing the capacitance of the stacked capacitor. The capacitor comprises a tunnel type electrode for charge storage, a dielectric layer, 1st and 2nd electrodes for charge storage, and a plate electrode formed on the dielectric layer. The surface of the tunnel type electrode is surrounded by the dielectric layer and the plate electrode.

An improvement for a semiconductor device in which memory elements and logic elements are formed on the same substrate is disclosed. The semiconductor device is formed so that a concentration of the field inversion preventive layer (105b, 205b, 305b) below the field oxide film within the region where memory elements are formed is higher than a concentration of the field inversion preventive layer ...

A fluoroalcohol of the formula Rf(CH2CH2OH)n (1) is prepared by the following two kinds of processes : (a) by contacting a betaine compound and water in the presence of an organic solvent with a halide compound of the formula Rf(CH2CH2X)n (2), or (b) by contacting a betaine type surfactant and water with a halide compound of the formula Rf(CH2CH2X)n (2), wherein Rf is C2 SIMIL...