Ivoclar Vivadent Ag

Other

Asea Brown Boveri Inc.

Ipsen International, Gmbh

Eth Zuerich

Advanced Plastics Technologies Luxembourg S.a.

Vibro-meter Sa

Vsg Energie - Und Schmiedetechnik Gmbh

Digi Sens Ag Digitale Messtechnik

Heinrich K Feichtinger

Rudolf Jussel

Gerald A Hutchinson

Peter J Uggowitzer

Robert A Lee

Christian Wegmann

Minh Becker

Gottfried Rohner

Joerg Loeffler

Felix Schmid

Gerald Stein

Markus O Speidel

Jörg Löffler

Irina Hucklenbroich

Derek H Feichtinger

Martin P Lustenberger

A process for producing high-purity magnesium by means of distillation at reduced pressure, characterized in that, the high-purity magnesium condenses in the liquid state, whereby the starting material in the form of a magnesium-containing melt is present together with the upper region of a condensation vessel in the upper region of a retort, whereby the retort consist of a material that releases no volatile impurities into the magnesium steam, whereby the upper region of the retort is brought to a temperature above the boiling point of magnesium, within the limits of two level lines, and is then held constant, such that steam rises from the boiling magnesium-containing metal melt and fills the interior of the upper region of the retort, whereby the steam infiltrating the upper region of the condensation vessel condenses below the lower level line and collects as high-purity melt in the lower region of the condensation vessel, and whereby in order to prevent contaminated melt that drops from the region above the upper level line from reaching the opening of the condensation vessel, this is protected by a cover, which conveys the impure magnesium back again into the melt.

Process and apparatus for vacuum distillation of high-purity magnesium

A process for producing high-purity magnesium by distillation at reduced pressure, which includes providing an apparatus having a retort formed from a material inert with respect to magnesium and an upper region defined by two vertically spaced level lines, a condensation vessel having a lower region and an upper region extending into the upper region of the retort, wherein the retort and condensation vessel are coupled to one another by an opening arranged in the upper region of the condensation vessel; providing a magnesium-containing metal melt to the retort at a level below the gap; and heating and maintaining the upper region of the retort at a temperature above the boiling point of magnesium to fill the retort with steam, thereby delivering a high purity melt into the condensation vessel via the opening.

The invention relates to a method for optically monitoring the progression of a physical and/or chemical process taking place on a surface of a body in which the surface radiation which emanates from part of the surface during the physical and/or chemical process, is measured with the aid of a measuring device, in particular a sensor. In order to develop a method of this kind such that sintering processes can also be monitored in a firing furnace having thermal radiation equilibrium, the invention proposes to emit the radiation () having a radiation spectrum that differs from the surface radiation, to the surface () by means of a radiation source () and to measure the radiation with the aid of a measuring device ().

Method of optically monitoring the progression of a physical and/or chemical process taking place on a surface of a body

Disclosed is a preferred mold design for producing plastic, molded preforms, which may be blow-molded into a container of a final, desired shape. A preferred mold includes a temperature control system for maintaining the preform mold at a desired temperature. The temperature control system can pass fluid through channels within the preform mold to cool plastic that is injected into the preform mold. In some arrangements, a mold comprises a neck finish mold, the neck finish mold configured to transfer heat away from the molding surface toward a channel conveying a working fluid. A heat transfer member may be at least partially positioned within the channel to transfer heat to the working fluid. In some embodiments, the mold comprises a high heat transfer material.

Methods and systems for controlling mold temperatures

Disclosed is a preferred mold design for producing plastic, molded preforms, which may be blow-molded into a container of a final, desired shape. A preferred mold includes a temperature control system for maintaining the preform mold at a desired temperature. The temperature control system can pass fluid through channels within the preform mold to cool plastic that is injected into the preform mold. In some arrangements, a mold comprises a neck finish mold, the neck finish mold comprising high heat transfer material positioned to transfer heat away from melt within a mold cavity of the mold.

Mold assembly having a pressure reducing device

A burning oven, especially for dental materials, is provided and includes a temperature detection element and a calibrating device for calibrating the temperature detection element. The calibrating device has a temperature sensor that in turn can be calibrated at a given number of temperature points, especially one or two temperature points.

Burning oven

System for controlling mold temperatures

The invention concerns a process for the measurement of the amount of a component that is released from a gaseous atmosphere during the thermo-chemical treatment of metallic work pieces. In order to provide a measurement system that offers the opportunity even in the ongoing treatment process for supplying the most exact data on the amount of a component released from the gaseous atmosphere and absorbed by the work piece a process is suggested with the invention for the continuous measurement of the amount of a component that is released from the gaseous atmosphere surrounding the work pieces and absorbed by the work pieces during a thermo-chemical treatment of metallic work pieces where a probe whose longitudinal extension significantly exceeds its width is exposed to the effect of the gaseous atmosphere, the longitudinal change of the probe over time in the longitudinal direction caused by the absorption of the component released by the gaseous atmosphere is measured and the measured longitudinal change is used for the determination of the amount of the transferred component transferred from the gaseous atmosphere to the probe.

Process as well as device for measuring a component amount released during a thermo-chemical treatment of metallic work piece from the gaseous atmosphere

The invention relates to a method for producing a metal alloy, in which in a vessel at overpressure a certain desired content of an alloying constituent, which is gaseous in its normal state, is fed to said metal alloy. The method is designed such that precise addition by alloying of an alloying constituent which is gaseous per se, to a steel alloy subjected to overpressure in a pressure vessel, is made possible.

Method for controlling and adjusting the concentration of a gas component in a melt and a device for carrying out the same

A calibration device for performing a temperature calibration of the temperature in an oven, especially an oven adapted for thermal treatment of a dental product, includes at least one metallic

Calibration device for calibrating oven temperatures

The present invention relates to a process and a device for the prevention of skidding in vehicles with at least two wheels (1-4) of which at least one (1, 4) is steerable, wherein the actual rotary acceleration of the vehicle along its vertical axis is measured by a rotary accelerometer (8) and compared with the nominal rotary acceleration which is determined by a computer (9) from the turn angle of the steerable wheels (1, 4) and the vehicle speed. The turn angle is measured by an angle measuring device (6), for example, at a steering wheel (5). The speed is measured with a speed pick-up (7) on at least one of the wheels (1-4) of the vehicle. The calculated difference between nominal and actual rotary acceleration is reduced to zero by the real-time generation of a compensation-torque in a device (10). This device (10) might consist of an electric motor (11) driving two contra-rotating flywheels (12) that are selectively decelerated and will stop the skidding process.

Anti-skidding process and device for vehicles

Process and device for producing metal strip and laminates

Process for the production of a component, in which metal or ceramic powder (6) is applied under centrifugal force to the inner wall of a gas-permeable mold (13), which is under reduced pressure and is located in a reduced-pressure vessel (10), and precompacted, after which the mold (13) is removed from the vessel (10) and sintered. The mold (13) consists of a heap of ceramic grains with an organic binder having high strength between room temperature and a temperature just below the sintering temperature, in order to support the powder (6) to be sintered to give the component. When sintering starts, the binder evaporates or burns away, as a result of which the mold (13) substantially loses its supporting action for the component. Binder: aminolic, phenolic, furan resin.

Process for the production of a component by producing a molding using a

A method for manufacturing a device for contactless and digital measurement of a linear or angular condition of a first piece with respect to a second piece. A series of ferromagnetic encoding marks are provided onto a non-magnetic substrate of one of the pieces. The encoding marks are produced by a strongly local heating of the surface of a non-magnetic substrate of an austenitic steel stabilized by a metalloid in interstitial solution. Displacement, speed and acceleration of a linear or angular kind of one piece with respect to a second piece can thereby be measured with great accuracy.

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Hinteregg, Switzerland

Heinrich K Feichtinger