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Assignee: BBC Brown Boveri & Company, Limited


Location: Baden, CH
No. of patents: 237

1            
NumberTitleIssue Date
4637962Composite material in rod, tube, strip, sheet or plate shape with reversible thermomechanical properties and process for its production
An article in rod, tube, strip, sheet or plate shape with reversible thermomechanical properties is produced by joining of at least two parts consisting of a total of at least one shape memory alloy having a two-way effect, whereby each part has a memory ...
01/20/1987
4480193Switching system
In a switching system having n nodes (1,2 . . . 6) which are connected via interruptible current branches (11,12 . . . 16) in the form of a ring, in the case of non-availability of at least one of the nodes or at least one of the switching points provided...
10/30/1984
4468791Method and facility for decoding a biphase-code and application of the method
In a method for decoding a received biphase-coded signal, a signal edge (2) is detected and its polarity determined in intervals of two periods (2T) for reconstructing the transmitted data. This allows the transmission rate of the signals to be increased ...
08/28/1984
4404929Liquid distributor head actuated by fluid pressure
In order to improve upon the prior arrangement of a valve within a liquid distributor head for a mixing pre-heater degasifier it is proposed that a valve containing a valve plate, valve shaft, valve spring and spring plate, is arranged within the mixing p...
09/20/1983
4367418Combining thyristor circuits of various circuit configurations
Thyristors included in circuit configurations are, in turn, connected in series circuit fashion such that n circuit configurations are so interconnected, where n is a real integer equal to or greater than 2. The circuit configurations provide a combinatio...
01/04/1983
4361494Anisotropic cyclohexyl cyclohexylmethyl ethers
New anisotropic compounds suitable for use in LC-display devices are disclosed and claimed. The new compounds are cyclohexyl cyclohexylmethyl ethers of formula (1): ##STR1## in which X and Y are respectively hydrogen, alkyl group with 1 to 12 C-...
11/30/1982
4340277Liquid crystal display and method of making
A liquid crystal display including a cell which consists of two cell plates and a liquid crystal with positive dielectric anisotropy layered between the plates, where the molecules of the liquid crystal next to the plates exhibit preferred directions rota...
07/20/1982
4324526Apparatus for regulating a turbo-supercharger
An apparatus for improving the efficiency of a turbo-supercharger at low load levels is disclosed. The apparatus includes an annular gas inlet housing which encircles the turbine of the turbo-supercharger and which housing includes an inlet for gases flow...
04/13/1982
4311016Supporting device
The present invention relates to a supporting device for a condensation steam turbine. The turbine parts which are exposed to vacuum tension are attached to a foundation carrier. The foundation carrier is also integrated into a spring supported foundation...
01/19/1982
4308477Starting resistance for a rotating electrical machine
A rotating starting resistance for a rotating electrical machine is disclosed. The resistance includes a helicoidal resistance wire that is wound in the shape of a torus, and connected to the rotating shaft of the electrical machine. The resistance wire m...
12/29/1981
4282451Solid rotor for asynchronous electrical machines
A solid rotor made from steel for use in an asynchronous electrical machine wherein, for the purpose of increasing its otherwise poor electrical conductivity and thereby to reduce its electrical losses, the end faces of the rotor are provided with concent...
08/04/1981
4278522Apparatus for treating contaminated water
An electroflotation device for treating contaminated water includes cathode electrodes which are self-cleaning with respect to lime deposits. Each anode electrode of the device is associated with a pair of cathode electrodes. During operation of the devic...
07/14/1981
4274755Rigid coupling, especially for turbogenerators
A rigid coupling, suitable for turbomachines, includes friction flanges for transferring torque from one shaft to another, bolts for axially coupling the friction flanges together, and shearing bushings which encompass these bolts and which prevent relati...
06/23/1981
4275123Hot-cathode material and production thereof
A hot-cathode material in wire or sheet form, comprising a high-melting carrier metal, an oxide activator and a carbide reducing agent, and, optionally, a diffusion-promoting additive, the material comprising a core zone and at least one surface layer hav...
06/23/1981
4275392Method and apparatus for monitoring the gas volume of a hydropneumatic storage unit
A method and apparatus to monitor a compressible gas volume of one or more hydropneumatic storage tanks of an energy-storing system includes at least one pump to fill the individual storage tanks with hydraulic fluid. The fluid is isolated from the gas vo...
06/23/1981
4274256Turbine power plant with back pressure turbine
A combined gas/steam turbine power plant is disclosed including a gas turbine having a combustion chamber and a steam turbine driven by steam generated with heat from the combustion gases of the gas turbine. The steam is utilized in a technological proces...
06/23/1981
4274260Method and apparatus for regulating a steam turbine
A method and apparatus for regulating a steam turbine comprising at least one resuperheater arranged between a high pressure section and a low pressure section and in which a reference-actual value comparison of the rotational speed is performed to produc...
06/23/1981
4265594Turbine blade having heat localization segments
Turbine blades having heat localization segments, especially for use in gas turbines, are disclosed. The segments are provided with covering elements in the form of thin cover plates that are supported against the blade root. The segments are formed as on...
05/05/1981
4266258Current limiting device for high voltage switching mechanisms
A device for quickly reconnecting two portions of a current carrying line after separation of the line portions through actuation of a circuit breaker includes a second circuit breaker and a serially connected switch connected in parallel with a primary c...
05/05/1981
4261166Process for operating a combined gas turbine/steam turbine installation with an integrated partial fuel-combustion process
A process for operating a combined gas turbine/steam turbine power plant having an integrated partial fuel-combustion process is disclosed wherein a portion of a supply of compressed air is fed to a combustion reactor in which a fuel is gasified. The gasi...
04/14/1981
4261805Method for regenerating activated carbon
The present invention provides a method for the continuous regeneration of activated carbon which has become loaded and deactivated subsequent to an aqueous filtration process, wherein organic chemical substances adsorbed on the activated carbon are oxidi...
04/14/1981
4257233Fastening arrangement especially for a turbine and a condenser
A fastening arrangement for a turbine and a condenser is disclosed wherein the turbine and the condenser are fastened to a common foundation table in order to decrease the effect of dynamic loads on the machine parts of a turbine and its foundations. The ...
03/24/1981
4258280Supporting structure for slow speed large diameter electrical machines
A supporting structural component such as a bearing for the rotor of a slow speed large diameter electrical machine the rotor of which rotates about a vertical axis comprises concentric inner and outer rings joined by rigid rectilinear spoke-like connecti...
03/24/1981
4258364Display device having adjoining display elements, and a method of producing the display device
A display device including a plurality of adjoining display elements which comprise front and rear electrodes. The display elements are disposed geometrically in at least one row and are electrically grouped together to form at least one matrix. The displ...
03/24/1981
4257360Feed water preheater
A feed water preheater has an integral desuperheater and an integral supercooler through which passes the feed water tube bundle. To prevent the penetration of steam into the supercooler at the point where the feed water tube bundle passes from the superc...
03/24/1981
4255126Furnace tilting device
A method and apparatus for tilting a furnace supported by rolling rockers is disclosed. The apparatus includes at least one hydraulic cylinder connected to a spout side of the furnace, and at least one hydraulic cylinder connected to a back side of the fu...
03/10/1981
4254627Steam turbine plant
A steam turbine plant is disclosed having at least one intermediate superheater which is connected to an outlet side of a high-pressure turbine by way of a check valve. A discharge pipe line is connected at one end through a flow-regulating unit to an out...
03/10/1981
4254590Method for the production of a disk-shaped silicon semiconductor component with negative beveling
A method for the production of a disk-shaped silicon semiconductor component with at least two adjoining zones of opposite type conductivity and different doping strengths using a lapping disk which includes the steps of positioning and semi-conductor com...
03/10/1981
4255683Salient pole for an electric machine
A salient pole includes a flat coil made up of a multilayer winding of round wire. The wire includes an adhesive layer which is cured after winding to consolidate the winding. The winding is within a U-shaped channel which is impregnated with resin to fil...
03/10/1981
4250391Apparatus for sterilizing liquids
The invention relates to an apparatus for sterilizing liquids by means of ultraviolet rays, using as the radiation source a low pressure, high current, mercury vapor lamp (UV lamp) which is provided with an appendix-shaped piece of tube (appendix) located...
02/10/1981
4249485Feed water preheater
A feed water preheater is disclosed having warm and cold tube bundles. The warm tube bundle is divided into first and second warm tube bundles with the first warm tube bundle forming a desuperheater bundle and the second warm tube bundle forming a condens...
02/10/1981
4249371Method and apparatus for dissipating heat in gas turbines during shut-down
An accumulation of heat which takes place in gas turbines during deceleration of turbine components, such as during shut-down, may be dissipated by flowing a supply of cooling air through the turbine stages. The cooling air is selectively supplied after t...
02/10/1981
4242549Electrical gas-blast circuit breaker and method of manufacture
An electrical gas blast circuit breaker is disclosed including first and second compartments for a pressurized quenching gas. The first and second compartments are connectible with the connection actuating valve members of each compartment. The actuation ...
12/30/1980
4242388Sealing cement useful for producing liquid crystal display cells
A sealing cement which is useful for bonding together mutually aligned glass plates of a liquid crystal display cell, the improvement which comprises incorporating into said cement a particulate filler of variably sized particles, wherein the shortest dis...
12/30/1980
4242008Rigid coupling
A rigid coupling between two rotating machines wherein one half of the coupling is provided with a boss which is inserted into a recess provided in the other coupling half. In order to center the boss in the recess, a centering ring is applied to the boss...
12/30/1980
4241958Axial thrust bearing
An axial thrust bearing includes a plurality of circumferentially arranged segments. The segments are constrained in the circumferential direction by means of support plates disposed therebetween. The segments are elastically supported by means of individ...
12/30/1980
4228541Device for the electro-optical display of the tuning of a television and/or sound radio receiver
A device for the electro-optical display of the tuning of an electromagnetic wave receiver, such as a television or a radio, wherein the frequency of a received electromagnetic signal is measured and converted into a digital representation, which is appli...
10/14/1980
4227441Hydraulic servo-motor for a regulating valve having a hydraulic closing mechanism
A valve actuator is disclosed having a servo-motor which regulates the position of a main valve that controls steam supply to a turbine. A hydraulic input signal acts on a pilot valve within the valve actuator body to move a valve spool in response to the...
10/14/1980
4228029Liquid crystalline compositions
Liquid crystalline compositions, especially for displays with a twisted nematic phase, comprising at least one compound of the formula ##STR1## wherein X=H, --CHO or --CH3, R1 =C1 --C10 alkyl, R2...
10/14/1980
4228398Method of testing distance relays
A method of automatically plotting the loci curves of multi-stage distance relays. The comparison impedances, required for the measurement, are automatically provided for given impedance angle by adjustable currents and voltages. During the determination ...
10/14/1980
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