Patents Assigned to Aktiengesellschaft
  • Galvanic cell with solid fluoride ion-conductive electrolyte
    Patent number: 3973990
    Abstract: In a galvanic cell, there is provided a solid fluoride ion-conductive electrolyte which is a compound having the formula M.sub.n Pb.sub.1.sub.-n F.sub.2.sub.-n wherein M is at least one element selected from the group consisting of potassium and rubidium; Pb is usually all lead but part of the lead may be replaced by metal more electropositive than lead; F is fluorine; and n is a positive value.
    Type: Grant
    Filed: January 13, 1975
    Date of Patent: August 10, 1976
    Assignee: Varta Batterie Aktiengesellschaft
    Inventors: Waldemar Borger, Udo Hullmeine, Ernst Voss
  • Tubular electrode
    Patent number: 3973992
    Abstract: An electrode grid is formed of extruded spines onto whose ends a yoke is cast. The spines may be of lead or lead alloy, with a core of a more highly conductive material.
    Type: Grant
    Filed: May 28, 1974
    Date of Patent: August 10, 1976
    Assignee: Varta Batterie Aktiengesellschaft
    Inventors: Hans Krug, Hans Niklas, Rolf Thornblad
  • Hollow formwork elements for producing concrete structures
    Patent number: 3973749
    Abstract: The present invention relates to reusable hollow formwork elements of elastic material which may be used for the concreting of pipelines, and which by filling with a gaseous or liquid medium, can be given compressive resistance. The invention also relates to a method of operating such formwork elements.
    Type: Grant
    Filed: May 22, 1974
    Date of Patent: August 10, 1976
    Assignee: Semperit Aktiengesellschaft
    Inventors: Franz Friedl, Erich Kohler, Hans Holler, Franz Gebauer
  • Penicillins
    Patent number: 3974288
    Abstract: A compound of the formula: ##SPC1##Or a pharmaceutically acceptable nontoxic salt thereof whereinR.sub.1 is hydrogen, straight or branched chain alkyl of 1 to 5 carbon atoms, monoaralkyl of up to 8 carbon atoms, monoaryl, substituted monoaryl, or thienyl;A is moiety of the formula: ##EQU1## wherein R.sub.2, R.sub.3, R.sub.4, R.sub.5, R.sub.6 and R.sub.7 are the same or different and each is hydrogen, straight or branched chain alkyl of 1 to 5 carbon atoms, monoaralkyl of up to 8 carbon atoms, monoaryl, substituted monoaryl, or thienyl;B is a moiety of the formula: ##SPC2##WhereinR.sub.8, r.sub.9 and R.sub.10 are the same or different and each is hydrogen, fluorine, chlorine, bromine.
    Type: Grant
    Filed: January 28, 1975
    Date of Patent: August 10, 1976
    Assignee: Bayer Aktiengesellschaft
    Inventors: Wilfried Schrock, Karl-Georg Metzger, Hans-Bodo Konig
  • Use of equalizers in satellite communication transmission systems
    Patent number: 3974448
    Abstract: A satellite communication transmission system for assuring distortion free transmission of signals via satellites and wherein a single distortion compensator is utilized in an I.F. section rather than a plurality of distortion correctors in low frequency sections and wherein the distortion compensation is accomplished in the I.F. or R.F. stages.
    Type: Grant
    Filed: January 20, 1975
    Date of Patent: August 10, 1976
    Assignee: Siemens Aktiengesellschaft
    Inventor: Heinz Baum
  • Switching arrangement for telecommunications systems
    Patent number: 3974342
    Abstract: A circuit arrangement for identifying one of two or more subscriber sets connected to a common trunk over branch circuits is described. A parallel arrangement of a capacitor and a threshold diode is inserted in at least some of the branch circuits. An electronic switch is connected across the latter parallel circuit, and it can be switched to a conducting state at the voltage level normally applied to the common trunk. Prior to the electronic switch reaching its conducting state, a voltage builds up on the capacitor, the value of which voltage is dependent of the breakdown level of the diode. This voltage on the capacitor identifies the subscriber set associated therewith.
    Type: Grant
    Filed: September 25, 1974
    Date of Patent: August 10, 1976
    Assignee: Siemens Aktiengesellschaft
    Inventor: Karl Wagner
  • Circuit arrangement for an electric melting furnace
    Patent number: 3974436
    Abstract: The invention concerns a circuit arrangement for use with an electric melting furnace of a type which is fed by a converter, the latter converter being equipped with thyristors and controlled by a control unit and a series-connected current regulator. More specifically, in accord with the invention, the circuit arrangement is provided with monitoring circuits for monitoring the operation of the thyristors. These monitoring circuits, in turn, generate signals which control switches for selectively short-circuiting the feedback resistors of the regulator.
    Type: Grant
    Filed: May 15, 1975
    Date of Patent: August 10, 1976
    Assignee: Siemens Aktiengesellschaft
    Inventor: Wolfgang Timpe
  • Thionosalicylic acid anilides and salts thereof
    Patent number: 3974204
    Abstract: New thionosalicylic acid anilides and salts with bases are provided which have parasiticidal activity in sheep and cattle particularly against adult liver flukes in sheep and cattle and other domestic animals, especially against juvenile liver flukes. The new compounds are produced by the reaction of poly-substituted phenols with substituted aromatic isothiocyanates, the hydrolysis products of oxo-thiono- or dithiono-dihydrobenzoxazines or by the reaction of N-phenyl-salicyl-imide chlorides with thio-compounds. Typical compounds are 3,5-dichloro-4'-bromo-thionosalicylic acid anilide and 2-acetoxy-3,5-dichloro-N-(2'-methyl-4'-chlorophenyl)-thionobenzamide. Novel benzoxazines obtainable from the above anilides are also provided and have similar properties.
    Type: Grant
    Filed: February 13, 1975
    Date of Patent: August 10, 1976
    Assignee: Bayer Aktiengesellschaft
    Inventors: Jurgen Kurz, Heinrich Kolling, Manfred Federmann
  • X-ray diagnostic apparatus
    Patent number: 3974385
    Abstract: An X-ray diagnostic apparatus including an automatic exposure timer which measures the X-radiation dosage on a film during the exposure or X-raying of an object, and automatically interrupts the exposure when a predetermined dosage has been reached; including a programming arrangement in which the exposure data for example, the X-ray tube voltage, the initial emission current and the darkening of the film, are manually adjustable in an organ-programmed manner dependent upon the portion of a patient's body which is being X-rayed; and including a time control circuit by means of which the emission current is reduced during an exposure.
    Type: Grant
    Filed: June 2, 1975
    Date of Patent: August 10, 1976
    Assignee: Siemens Aktiengesellschaft
    Inventor: Stig Grim
  • Process for preparing aldehydes from oxirane compounds
    Patent number: 3974224
    Abstract: Aldehydes are prepared by reacting an oxirane compound with hydrogen peroxide in the presence of a boron compound.
    Type: Grant
    Filed: October 25, 1973
    Date of Patent: August 10, 1976
    Assignee: Bayer Aktiengesellschaft
    Inventors: Helmut Waldmann, Wulf Schwerdtel, Wolfgang Swodenk
  • 1,4-Dihydropyridine carboxylic acid esters useful as coronary vessel dilators and anti-hypertensives
    Patent number: 3974275
    Abstract: Certain 1,4-dihydropyridine carboxylic acid esters or their pharmaceutically acceptable non toxic salts are useful as coronary vessel dilators and antihypertensives.
    Type: Grant
    Filed: February 10, 1975
    Date of Patent: August 10, 1976
    Assignee: Bayer Aktiengesellschaft
    Inventors: Friedrich Bossert, Horst Meyer, Wulf Vater
  • Disc brake
    Patent number: 3973653
    Abstract: A disc brake with a friction disc having a pair of annular friction surfaces placed between brake shoes disposed about such friction surfaces for coming into frictional engagement therewith when the brake is actuated, the friction disc including a cast member located in the region of the surfaces which come into frictional contact with the brake shoes when the brake is actuated, the cast member including a separating joint running oblique with respect to the friction surfaces.
    Type: Grant
    Filed: February 12, 1973
    Date of Patent: August 10, 1976
    Assignee: Volkswagenwerk Aktiengesellschaft
    Inventors: Otto Weber, Horst Hartwig, Gunter Munchenberg
  • 1,4-Dihydropyridine esters
    Patent number: 3974278
    Abstract: A new class of 1,4-dihydropyridines which are characterized by the presence of ester substitutes at positions 3 and 5 of the nucleus and by the presence of an alkoxyalkyl at position 2. The products exhibit coronary activity and have particular application as coronary dilators, anti-fibrillators, anti-hypertensives, and as muscular and vascular spasmolytics.
    Type: Grant
    Filed: May 12, 1975
    Date of Patent: August 10, 1976
    Assignee: Bayer Aktiengesellschaft
    Inventors: Friedrich Bossert, Egbert Wehinger, Wulf Vater, Kurt Stoepel
  • Production of corrugated tubing
    Patent number: 3973424
    Abstract: Corrugated tubing is prepared by exerting axial pressure on the tubing being corrugated, without exerting any essential axial pressure, on the corrugating tool. Such pressure can be exerted by applying a braking force on the tubing exiting from the corrugator.
    Type: Grant
    Filed: January 9, 1975
    Date of Patent: August 10, 1976
    Assignee: Kabel-und Metallwerke Gutehoffnungshutte Aktiengesellschaft
    Inventors: Friedrich Albes, Werner Kleemann, Gerhard Ziemek
  • X-ray diagnostic apparatus for radioscopy and X-ray film exposures including an X-ray tube having a rotating anode
    Patent number: 3974384
    Abstract: An X-ray diagnostic apparatus employed in radioscopy and for X-ray film exposures, including an X-ray tube with a rotating anode, in which the transitional time during changes in operational mode is completely eliminated. A circuit arrangement is included in the X-ray diagnostic apparatus in which each exposure upon actuation of an exposure triggering element immediately follows the preceding radioscopic operation, and wherein a signal corresponding to the actual value of the anode rotational speed is transmitted to a power output adjusting element, the power adjusting element being programmed in conformance with the permissible cycle of the X-ray tube power output in dependence upon the anode rotational speed, and to thereby effect the setting of the X-ray tube power output associated with the respective anode rotational speed.
    Type: Grant
    Filed: October 22, 1974
    Date of Patent: August 10, 1976
    Assignee: Siemens Aktiengesellschaft
    Inventor: Hans-Werner Winkler
  • Making a stabilized superconductor
    Patent number: 3974043
    Abstract: Copper particles are brushed onto the surface of niobium or niobium alloy strip which is then wound helically on a roll for electroplating a thin copper layer onto the one strip surface. The coated strip is annealed above 900.degree. C for 30 minutes and electrolytic copper plating using again the roll as carrier is continued until the copper layer is sufficiently thick.
    Type: Grant
    Filed: April 25, 1975
    Date of Patent: August 10, 1976
    Assignee: Kabel-und Metallwerke Gutehoffnungshutte Aktiengesellschaft
    Inventors: Werner Sczepaniak, Werner Materne
  • Thermoplastic molding compositions
    Patent number: 3974234
    Abstract: The invention relates to molding compositions comprising at least one amorphous polyamide and at least one styrene homo- or copolymer with a derivative of acrylic acid, said styrene polymer being modified with an elastomer and showing impact strength. The blends according to the invention show high hardness and flexural modulus and, at the same time, excellent fluidity.
    Type: Grant
    Filed: January 27, 1975
    Date of Patent: August 10, 1976
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Ludwig Brinkmann, Harald Cherdron
  • Liquid ring compressor
    Patent number: 3973879
    Abstract: In a liquid ring compressor with a liquid separator which has a liquid take-off point in its housing which is fed by the liquid ring co-rotating with the impeller and connected through connecting lines outside the housing to internal auxiliary liquid circuits, a liquid jet pump is installed in the connecting line and supplied with operating fluid from the liquid take-off point and is used to return liquid which is separated from the compressed gas at least during the start up of the compressor.
    Type: Grant
    Filed: February 18, 1975
    Date of Patent: August 10, 1976
    Assignee: Siemens Aktiengesellschaft
    Inventor: Claus Ramm
  • Switching arrangement for the transformation of digital angles into analog sine-and/or cosine values
    Patent number: 3974498
    Abstract: A switching arrangement for generating sine and/or cosine function analog outputs in response to input digitally coded angle values where a correspondingly coded digital to analog converter is compensated by means of a correction circuit comprising a resistance network controlled by switches responsive to the input angle. Preferably the correction circuit is interposed between a constant voltage source and the converter so that the reference voltage supplied to the converter is precompensated to achieve sine and cosine output values of a desired precision.
    Type: Grant
    Filed: December 2, 1974
    Date of Patent: August 10, 1976
    Assignee: Siemens Aktiengesellschaft
    Inventor: Hans Josef Knier
  • Engine cylinder block and head connection
    Patent number: 3973547
    Abstract: A reciprocating piston engine with at least one working space that is radially delimited by a cylinder liner retained in a cylinder block, and with at least one cylinder head which is sealingly clamped to the top side of the cylinder block and which contains liquid-cooled control parts axially delimiting the working space on one side and channels for the working medium and the cooling medium that are sealed off with respect to each other; the cylinder head thereby includes a bottom plate and side walls and possibly partition walls and the like which act reinforcingly on the bottom plate, whereby the elastic yieldingness of the bottom plate is constructed as uniformly hard as possible within the area of the circumferential configuration of the cylinder liner by weakening the reinforcing action of these walls within certain areas.
    Type: Grant
    Filed: January 17, 1975
    Date of Patent: August 10, 1976
    Assignee: Daimler-Benz Aktiengesellschaft
    Inventor: Eckhard Weiss