A dual sensing intrusion detection system comprising a passive infrared radiation detection sensor (12) which generates a first output signal (32) in response to the detection of an intruder in the volume of space, a second detection sensor (6) which is directed to the same volume of space and generates a second output signal (46) in response to detection of the intruder and a switch (38) which ac...

A multicomponent fluid separation and irradiation system is described containing a centrifuge drum and a source of radiant energy (2) located within the drum. In a first embodiment a disposable rigid separation/irradiation chamber (14) is provided with a cylindrical outer compartment located within the drum and opposing the radiant energy source (2). Whole blood is supplied to the chamber through ...

A split tire mold having a tread ring in which provision is made for venting air circumferentially across the inner surface of the tread ring so that the air escapes from the parting line of the mold halves, dispenses with widely used, conventional, radially protruding vent stubs. The air is vented through "butterfly-shaped" or "double-wedge-shaped" arch-vents which provide passage for trapped air...

In the case of simultaneous transmission and emission converging tomography a single photon-emission computer-tomography system contains three gamma-camera heads (22a, 22b, 22c) which are mounted on a frame (20) so that they can be rotated about an object (12). An emission radiation source is injected into the object, the emission radiation of which is received by the camera heads. Transmission ra...

The shredder has shredding teeth (17) on the drum (16) which work with a mating tool, tilting on a spindle (18) parallel to the drum axis. These teeth are at the gaps between the drum teeth. A drive mechanism rotates the drum. The tool working with the drum is comb-shaped, with teeth (19) curved and unable to turn on the pivot spindle (18). These protrude towards the drum so as to form a tapering ...

An electromagnetic valve assembly having upper and lower modules. A standardized lower module can be joined with one of several upper modules having a different axial length for varying the magnetic field strength of a coil arrangement in the upper module without changing the length or position of an armature tube in the lower module.

2134327 9420603 PCTABS00033 The invention provides dual-skinned membrane useful as one way or rectifying membranes which reduce back filtration of solute molecules in dialysis and which improve nutrient supply and product recovery in membrane bioreactors. The membranes are dual-skinned polymeric materials preferably in the form of hollow fibers. The membranes have skins of polymer on the opposite ...

The use of substances capable of preventing the binding of a receptor binding form of u-PA to a u-PA receptor (u-PAR) in a mammal and thereby preventing u-PA from converting plasminogen into plasmin thereby preventing cell surface plasminogen activation which is believed to play an important role in tissue remodelling, particularly during cancer invasion for preparing a composition for preventing ...

The invention relates to a sheet delivery system for a sheet-processing machine in which the sheets to be deposited are conveyed horizontally and are deposited on a sheet stack which is carried by a stacking table and lowered with increasing stacking height, said sheet delivery system comprising an auxiliary stacking table, the grate-like bars of which, can be inserted into the stacking area. Auxi...

To take off a yarn, ribbon or the like over the head of a wound bobbin, the yarn (4) is drawn alternately over one of the two end surfaces (1', 1'') of the bobbin (1). - A mounting (2) inhibits rotation by the bobbin (1). A take-off eyelet (3) is moved between the two take-off points (A,B) at the opposite ends of the mounting axis formed by the bobbin holder (2), where the bobbin (1) is held paral...

Device for the cutting or vaporising of various materials and tissues by using the laser effect, in particular for the treatment of dental caries and the cutting of the dentine, characterised in that it comprises a specific laser of the YAG type having in particular the following characteristics: - a capacity for emitting a pulsed energy of between 0 and 250 millijoules; - firing rate of 50 Hz; ...

A gripper bar fitted on drive chains and destined to grip and carry plate shaped sheets of material through printing, cutting and similar machines to produce a package characterized by the bar including a hollow profile on which the grippers are fastened. Every gripper consists of a flat spring attached at one end to a leading edge wall of the bar and having the other free end taking a rest positi...

The invention relates to a mammographic apparatus (1) making it possible to produce negatives of breasts of medium to large size and/or medium to high density with the aid of a receiver (86) of the intensifying screen/film pair type, without increasing the dose absorbed by the patient or degrading the quality of the negatives compared to the negatives produced for such breasts with the aid of X- r...

Method and composition for vaccination of a pig against swine dysentery caused by T. hyodysenteriae infection characterised by parenteral, preferably intramuscular, administration to the pigs of a live strain or of an oxygen-treated, non-viable strain of T. hyodysenteriae.

In a process for smelting steel from scrap and/or metal-containing, waste-like materials, the continuously or discontinuously introduced metal carriers are preheated and melted in a fixed bed, and oxygen-containing gases are injected via at least one secondary nozzle level in the region of the fixed bed and/or above the fixed bed. The waste gas from the fixed-bed reactor (1) is fed to a thermal re...