Abstract:
This invention relates to an elastic bandage for supporting a body extremity such as a leg. Such bandages are used to overcome problems with fluid retention and swelling in the legs, occurring as a consequence of varicose veins, vascular incompetence, pregnancy, etc. It is a task of this invention to supply an active support for a body extremity such as a leg, which can be used by a person underneath the clothes and will not reduce the mobility of the patient. This task is solved in that an elastic bandage comprises an elastic layer for surrounding a body extremity to exert compressive force on the extremity, the bandage being, at least partly, formed by elastomeric actuation elements, whereby electrical control of the compressive force is possible, and where the control is due to a signal from some sensing system.
Abstract:
Es wird ein Verfahren zum Entdecken von Änderungen in einem ersten Medienstrom eines Wärme-oder Kältetransportmediums in einer Kälteanlage angegeben, in der der erste Medienstrom durch einen Wärmetauscher geführt wird, in dem ein Wärmeübergang zwischen dem ersten Medienstrom und einem zweiten Medienstrom eines Wärmeoder Kälteträgers erfolgt. Man möchte Änderungen möglichst früh erkennen können. Hierzu ist vorgesehen, dass man zur Überwachung des durch en Änderung der Enthalpie des zweiten Medienstromes oder eine davon abgeleitete Größe ermittelt.
Abstract:
This invention discloses an improved process of distributing liquid physiological specimens over a surface, i.e. the filming process in a laboratory, during which a liquid sample is distributed over a specimen-display surface like a conventional laboratory slide. The invention relates to the utilisation of the centrifugal force in a rotating device. By placing the surface that is to be filmed by the sample, in such a way that it is pointed towards the axis of rotation, the influence of the centrifugal force will distribute the sample over the whole surface.
Abstract:
The invention is directed to a method for allocation of heat costs to rooms of a flat in which -for each room a difference between a first value depending of an internal room temperature and a second value relating to an external temperature is integrated over a predetermined period, -the integration result is multiplied with a weight factor indicating the percent by volume of the room to form a room consumption index, -the room consumption indices of all heated rooms in the flat are added to form a flat consumption index, and -the heat costs for each room are allocated according to the ratio between the room consumption index and the flat consumption index.
Abstract:
The present invention relates to sensors for determining the concentration of compounds, and to preventing contamination of the sensor, when the sensor is placed in areas where bacterium growth is an issue. Further it relates to sensors implantable in a living creature, for determination of compounds such as glucose. Covering the sensing means with a cover, which moves between a sensing position and a resting position, prevents the contamination of the sensor.
Abstract:
Es werden ein Thermostatventilaufsatz (1) und ein Verfahren zum Einstellen seines Sollwerts angegeben mit einem Thermostatelement (7), das einen Druckraum (8) aufweist, in dem innere volumenverändernde Mittel angeordnet sind, und mit einem Betätigungselement (12), das mit einer Dehnzone des Thermostatelements (7) in Wirkverbindung steht. Man möchte die Baugrösse des Thermostatventilaufsatzes klein halten. Hierzu sind äussere formverändernde Mittel (5, 20) vorgesehen, die von aussen die Form des Druckraums (8) ausserhalb der Dehnzone verändern.
Abstract:
Eine Zentralheizungsanlage hat in getrennten Räumen angeordnete Heizkörpern (9) in einem Heizkreis, der eine Wärmequelle mit regelbarer Wärmeleistung und eine Umwälzpumpe (12) aufweist. Die Heizkörper (9) haben jeweils ein Ventil (10), das in Abhängigkeit von der Raumtemperatur durch einen Temperaturregler (11) einstellbar ist, um die Raumtemperatur auf einem einstellbaren Sollwert zu halten. Üblicherweise wird die Vorlauftemperatur nach einer vorbestimmten Funktion in Abhängigkeit von der Aussentemperatur und der jeweiligen Einstellung der Temperaturregler geregelt. Dies erfordert das Messen der Temperaturen an zahlreichen Stellen mit entsprechend hohem Aufwand an Fühlern und Übertragungseinrichtungen. Um die Wärmeverluste mit geringerem Aufwand niedrig und dennoch die gewünschten Raumtemperaturen einzuhalten, ist erfindungsgemäss die Wärmeleistung der Wärmequelle so regelbar, dass der Arbeitspunkt der Umwälzpumpe (12) auf ihrer Betriebskennlinie eine Lage einnimmt, in der die Rücklauftemperatur (T 1 ; T 2 ) der Anlage unter Aufrechterhaltung der eingestellten Raumtemperaturen und unter Berücksichtigung der Wärmebelastung der Anlage minimal ist.
Abstract:
The invention concerns a method for speed control of a compressor, particularly a refrigeration compressor, and a control arrangement using this method. The speed control is effected in that a control arrangement varies the speed of an electric motor in dependence of simple ON/OFF signals from a thermostat placed in the surroundings to be cooled. The method according to the invention is characterised in that the starting speed of the compressor in a following ON period is reduced in relation to the final speed in the previous ON period. A continuous reduction of the starting speed of each ON period results in a self-regulating control giving long compressor operation times and an averagely low speed resulting in energy savings. A control arrangement using this method is also described.
Abstract:
A method for electrochemical phosphating of metal surfaces, particularly stainless steel, in connection with cold forming of metal workpieces, which method provides the cold formed work-piece with a lubricant after phosphating, involves an electrochemical phosphating through a cathodic process applying an aqueous phosphating solution containing: 0.5 to 100 g Ca /1, 0.5 to 100 g Zn /1, 5 to 100 g PO4 /1, 0 to 100 g NO3 /1, 0 to 100 g ClO3 /1 and 0 to 50 g F or Cl /1, by which the temperature of the solution is between 0 and 95 DEG C, the pH-value of the solution is between 0.5 and 5, and the current density is between 0.1 and 250 mA/cm . This gives a good lubrication effect, a good adhesion to the metal surface, particularly stainless steel, and a more expedient texture than ordinary phosphating.
Abstract translation:金属表面,特别是不锈钢的电化学磷酸化方法与金属工件的冷成型相结合,该方法在磷化之后提供具有润滑剂的冷成型工件,涉及通过施加磷酸盐水溶液的阴极工艺的电化学磷化 含有0.5〜100g Ca 2+,0.5〜100g Zn 2+,1〜5g / l PO 4 3 / 1,0〜100g NO 3 - / 1,0 至100克ClO 3 - / 1和0至50克F -1或Cl - / 1,溶液的温度在0至95℃之间,溶液的pH值介于 0.5和5,电流密度在0.1和250mA / cm 2之间。 这提供了良好的润滑效果,与金属表面,特别是不锈钢的良好粘附性,以及比普通磷化更方便的质地。
Abstract:
Method for commutation of a brushless motor (3) being supplied with electrical energy from a DC intermediary circuit via a multi-phase inverter, by which a first current and a second current value are determined and the length of a commutation interval is set in dependence of these current values. With motors being exposed to heavily varying load torques during one rotation, e.g. motors driving a compressor, a stable operation must be reached. For this purpose a correction value is added to the pre-set commutation interval determined by the speed of the motor (3), said correction value being the result of the difference of the actual value of the intermediary circuit current and a filtered and delayed value of the intermediary circuit current, multiplied by a weighting factor.