Filter based on cellular ceramic material consisting of mullite and zirconia. Process of preparation and the application to the filtration of liquid metals or alloys of very high melting point.

Filter based on cellular ceramic material consisting of mullite and zirconia. Process of preparation and the application to the filtration of liquid metals or alloys of very high melting point.

The invention refers to an anatomic absorbent which contrary to similar products exhibits dynamic and anatomic action, accompanying the movement of the body of the user and providing increased protection against leakage. The absorbent of the invention comprises an absorbent substrate (3) sandwiched between a permeable and an impermeable layer (1, 2) which are sealed to each other at least at the e...

The invention refers to an anatomic absorbent which contrary to similar products exhibits dynamic and anatomic action, accompanying the movement of the body of the user and providing increased protection against leakage. The absorbent of the invention comprises an absorbent substrate (3) sandwiched between a permeable and an impermeable layer (1, 2) which are sealed to each other at least at the e...

A fluid flow regulator includes a resilient hollow sealing body which is fitted in the bottom part of a liquid housing adjacent to a tubular outlet end and which has a central through-hole to communicate to one another the chamber of the housing and the outlet end. An annular flange which extends from the top of the sealing body toward the through-hole forms a valve seat against which a float valv...

A fluid flow regulator includes a resilient hollow sealing body which is fitted in the bottom part of a liquid housing adjacent to a tubular outlet end and which has a central through-hole to communicate to one another the chamber of the housing and the outlet end. An annular flange which extends from the top of the sealing body toward the through-hole forms a valve seat against which a float valv...

A fluid flow regulator includes a resilient hollow sealing body which is fitted in the bottom part of a liquid housing adjacent to a tubular outlet end and which has a central through-hole to communicate to one another the chamber of the housing and the outlet end. An annular flange which extends from the top of the sealing body toward the through-hole forms a valve seat against which a float valv...

In the production of such articles on extrusion lines from thermoplastic materials containing blowing agent, it is difficult to achieve close dimensional tolerances of the extruded articles and a uniform foam structure. Instead of the previously customary manual variation of the take-off rate, it is proposed to use a - preferably electrically operating - force measuring device to measure the tensi...

A sub-miniature power amplifier for hearing aids configured to be completely self-contained and to fit within the user's ear wherein, in response to the absence of signals from the hearing aid microphone, a power amplifier provides a train of alternating positive and negative electrical pulses having substantially zero average value at an ultrasonic frequency. A class D amplifier stage may provide...

In an apparatus for the use of so-called water enamels or some other similarly conductive coating material, the electrical field for charging the sprayed particles is produced between the grounded spraying edge (6) of a bell-shaped atomizer (10) and a large number of external electrodes (10) inserted into an annular element (20) made of an insulating material.

At least one of the panel projections (3,4) is formed with an upper grip flange (5,6), and a bracket-shaped (12) with free passage is pushed over this flange. - Force is applied to the bracket-shaped so that it deforms plastically to locate firmly against the projections (3,4).

The signal processor (3-15) re-transmits data which is then received (16) and transmitted (17) to a receiver which evaluates them. The processor (3-15) only passes information to the transmitter (16) with aerial (17) concerning cardiac activity during the time that respiratory sound is be recorded by the specially adapted microphone (2), and correspondingly only transmits respiratory activity data...

An arrangement in the form of a rotary attachment which is intended to be arranged between a working machine and a working implement designed for the working machine, for example a levelling, excavating or loading bucket or other working implement, comprises a first part 2 and a second part 3 which are rotatably connected to each other about a first axis. Arranged between the first and second part...

A body part (1) of elastic material is used, and consists of two layers (2,3) of e.g. plastic foam which are joined to each other by adhesive. Between them is located an electrically conductive resistance wire (4). The resistance wire is laid in zig-zag formation so that it can heat e.g. a chair seat in which the body material is fitted. - In the one layer (2), a circulate hole (8) is made, pref. ...

The present invention relates to a pivotal hatch, mainly for sun protection for cars. According to the invention, the pivot joints of the hatch are formed by pairs of hinge flanges 6,7, which protrude from the inside of the hatch 1 and which between themselves form curved bearing surfaces, and at least one guide 2, which has/have circular-shaped portions to a number which is equal to the number of...

In the first cleaning stage (21) at least the main part of the paint particles are separated, from the ventilation air whilst in the following stage (2) the main part of all residual paint particles from the first stage are separated, together with any remaining fluid droplets. The thus cleaned ventilation air is mostly re-circulated to the spray booth (1) as the incoming air (17,18), and possibly...

A device to be used in a plant for materials in track form, in particular in thedescicating section of a paper machine, to facilitate the application of edge traction by deploying a belt positioned near the edge of the track and coated with an adhesive on the side facing the track. The cross section of the belt comprises two parts, a thicker one made from a rubber material with trapezoidal protrus...