baber/WOPTO huggingface dataset:
Patent EP-0436930-A2 (EP)
Title: Justiermarken für zwei aufeinander einzujustierende Objekte
Inventor: KAISER PAUL
IPC: G03F9/00
Filed: 1990-12-27
Abstract: Die Erfindung betrifft Justiermarken für ein Verfahren zur Ausrichtung von zwei aufeinander mittels eines Bilderkennungssystems einzujustierenden Objekten, bei denen gerade Linien optoelektronisch abgetastet und die dabei gewonnenen Helligkeitswerte zeilenweise integriert werden. Der Vorteil der erfindungsgemäßen Justiermarken besteht in der Vermeidung von Positionierungenauigkeiten infolge der gegenseitigen optischen Beeinflussung der Justiermarken bei der optoelektronischen Auswertung und in einer hohen Auswertegeschwindigkeit. <IMAGE>
Patent EP-0417851-A2 (EP)
Inventor: SHANNON JOHN MARTIN
IPC: H01L49/02
Filed: 1990-09-10
Abstract: A method of fabricating small sized, physically discrete, two-terminal non-linear devices in bulk comprising forming on the surface of a temporary support (10;24) a multiple layer formation consisting of a series of thin film layers (12,14,16; 25,26,27,28) of selected materials and uniform thicknesses constituting a diode structure, for example a MIM type or p-n-p punch-through type structure, scribing the multiple layer formation in a regular pattern to define portions, (20;30), and thereafter removing the support and separating the portions into physically discrete elements, each of which forms an individual non-linear device. Large numbers of devices, typically around 20µm across, are produced simultaneously each exhibiting substantially identical physical and electrical properties.
Patent EP-0380213-A2 (EP)
Inventor: NAPPIER THOMAS E
IPC: C07C53/124
Filed: 1990-01-11
Abstract: According to the disclosure, solutions of precious metal salts of organic carboxylic acids are prepared by reacting an organic carboxylic acid with a hydrated precious metal oxide in an organic solvent for both the acid and the carboxylate salt. The process results in high purity solutions which can be used as such as very effective precious metal catalysts. Alternative­ly, the precious metal carboxylates can be recovered and converted into oxides or elemental metal products by decomposition or reduction and giving rise to products having enhanced surface area and small particle clusters, and also useful as very effective precious metal catalysts.
Patent EP-0381464-A2 (EP)
Inventor: THACKER CHARLES P
IPC: H04L25/49
Filed: 1990-01-31
Abstract: A high bandwidth signal may be transmitted on a coaxial cable (6) and accurately decoded by providing at the receiving end a receiving circuit (4) which is not sensitive to the amplitude of the received signal, but is responsive only to the time at which transition of the signal occurs. In this decoding method, signals meeting the requirement are provided by differentiating the received signal which is transmitted in a code wherein zeros are indicated by a lack of transition, and ones are indicated by a transition, the differentiation providing an indication of the time at which the transition occurs. The signal which was origi­nally transmitted is reconstructed by comparing the signal which is received at the end of the coaxial cable, with a signal received at a time T+ΔT, in a standard differential comparator (32).
Patent EP-0396291-A2 (EP)
Inventor: PILLOUD FRANCIS
IPC: H03K3/57
Filed: 1990-04-23
Abstract: A spark generator suitable for use in an optical emission spectrometer, and capable of generating a spark in a spark gap formed between an electrode and a sample to be analysed, comprises means for generating a current of programmable amplitude in the spark gap in each of a series of discrete time intervals. 
     The spark generator according to the invention is advantageous when compared with conventional spark generators in that it enables a higher degree of choice and control in the form of the spark. In particular, it enables the amplitudes of various portions of the spark to be independently varied, thus permitting the shape of the spark to be tailored to the particular analysis being performed. 
     Also described are methods of optical emission spectroscopy which make use of the advantageous properties of the spark generator.
Patent EP-0412751-A2 (EP)
Title: Diffractive lens
Inventor: FUTHEY JOHN A C O MINNESOTA MI
IPC: G02B27/00
Filed: 1990-08-06
Abstract: A diffractive lens has a plurality of diffractive zones at least one of which has an optical step having an optical height equal to jλ and at least one of which has an optical step having an optical height equal to kλ where λ is a design wavelength of the lens and j and k are unequal nonzero integers. Alternatively stated at least one of the optical steps induces a relative phase shift of 2jπ at the back conjugate point between two light rays emerging from a point source at the front conjugate point and striking the lens immediately on opposite sides of the step and at least one of the steps induces a relative phase shift of 2kπ at the back conjugate point between two light rays emerging from a point source at the front conjugate point and striking the lens immediately on opposite sides of that step.
Patent EP-0421646-A2 (EP)
Inventor: VAN DER VEEN ALBERTUS CAREL
IPC: H01Q9/30
Filed: 1990-09-24
Abstract: The invention concerns a combination of a transmitter/receiver (12, 13) having a predetermined frequency/wavelength and an antenna (15), the antenna comprising a coiled wire portion (16) one end of which is connected to the output (14) of the transmitter/receiver and a straight wire portion (17) one end of which is connected in series to the other end of the coiled wire portion, the combined length of the portions being no more than one quarter wavelength, the inductive reactance of the coiled wire portion (16) being selected to both substantially tune out the capacitive reactance of the transmitter (12, 13) and the capacitive reactance of the straight wire portion so that the overall impedance of the system is predominantly resistive, and at least the majority of the coiled portion (16) being external to the conductive portion (12) of the transmitter so as to effectively add to the electrical length of at least the straight portion (17) and itself act as a radiator. The system is particularly designed to be used with no ground plane or only a partial ground plane and with the antenna length less than quarter wavelength. This is particularly useful in the sport of falconry. The system of the invention gives a higher output than a conventional quarter wavelength straight antenna with no ground plane.
Patent EP-0387118-A2 (EP)
Inventor: BAGREL VALERIE
IPC: C08G63/85
Filed: 1990-02-21
Abstract: Process for condensing at least one aliphatic epoxide containing at least 8 carbon atoms in its molecule with at least one cyclic anhydride of a dicarboxylic acid in the presence of a catalyst based on at least one titanium complex of general formula (I) Ti(OR)2(L)2 in which each of the groups R independently denotes a hydrocarbon group containing 1 to 10 carbon atoms and each of the groups L denotes a ligand of beta-diketone type or of beta-ketoester type. 
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Patent EP-0452610-A2 (EP)
Inventor: EICHINGER DIETER DR
IPC: D01F2/00
Filed: 1990-12-18
Abstract: In order to prepare a solution of cellulose in N-methylmorpholine N-oxide and water which, compared with known solutions, has a higher water content at the given cellulose content, a mixture of the three components is subjected to shear rates of 400-3000 s<-1>, preferably 500-800 s<-1>. This process allows solutions to be prepared which satisfy the following conditions (ccell = proportion by weight of cellulose; <IMAGE>  = proportion by weight of water): <IMAGE>
Patent EP-0442344-A2 (EP)
Inventor: SAUER MICHAEL DIPL-ING
IPC: E21C27/34
Filed: 1991-02-04
Abstract: A conveyed load monitoring device for an electrical conveyor system in mining, which has armature current control and speed control, and measurement equipment for the armature current and speed, in order to control the conveyor machine motor, the speed measurement equipment (21) being connected via a matching amplifier (24) to a speed differentiator (25) which is connected to limit value sensors (31, 32), and the output of the speed differentiator (25) being connected to the input of a differential amplifier (26) to which the output of a matching amplifier (23) for the armature current is also connected.   <IMAGE>
Patent EP-0445587-A2 (EP)
Inventor: BENTIVENGA SALVATORE
IPC: H01P7/10
Filed: 1991-02-21
Abstract: Modular resonant cavities (22) particularly for use in applications associated with high frequency electromagnetic energy each comprise a shell (24) defining an aperture (36) formed therethrough, and either end plates (26') and/or divider closure plates (26), each having stepped-down regions for interfitting at perimeter ends of adjacent shells so as to form a resonant cavity. The modular resonant cavities include support rods (42) passing through the corner regions (30) of each closure plate. Fastening means at each end of the rods mechanically secure the modular resonant cavities together. The modular resonant cavities are particularly suited for forming dielectric notch resonators and in particular, such dielectric notch resonators having a centrally positioned resonators within the aperture defined by each shell and a coupling reactance mechanism formed by an inductive coupling wire and a capacitive element connected in series thereto so as to form a dielectric notch resonator with a relatively narrow bandwidth and with a small imaginary component about its operating center frequency. 
     Dielectric notch filters using a plurality of such dielectric notch resonators further comprise a coupling transmission line which connects to each dielectric notch resonator resulting in an overall filter having a shorter overall length than comparable filters formed by prior art dielectric notch resonators. The resulting dielectric notch filter has a lower electrical loss than previous dielectric notch filters using longer coupling transmission lines.
Patent EP-0459491-A2 (EP)
Inventor: TERADA MITSUGU
IPC: H01S3/034
Filed: 1991-05-31
Abstract: A gas laser apparatus having transparent laser windows (2) provided on a laser chamber body (1), in which operating gases is sealed if necessary, comprising circulation means (32) connected to the laser chamber body (1) through an intake port (31) and a discharge port (30) for circulating gases within the laser chamber body (1) and filtration means (33) disposed in said circulation means (32), further comprising cutoff means (3) for preventing the laser windows (2) from being stained and open and closeably cutting off between the laser chamber body (2) and the laser windows (2), and having a construction wherein in replacing the laser window (2), the cutoff means (3) is once placed in a cutoff state, and the laser window (2) is separated from the laser chamber body (1) to place the laser window.
Patent EP-0474054-A2 (EP)
Inventor: KANAKARAJAN KUPPUSAMY
IPC: B32B27/34
Filed: 1991-08-23
Abstract: Flexible multilayer polyimide metal-clad laminates, and their preparation, having at least one layer of aromatic polyimide bonded to at least one layer of a metallic substrate using a heat-sealable copolyimide adhesive containing repeating imide units derived from 4,4'-oxydiphthalic dianhydride and an aromatic ether diamine. The laminates are used in flexible printed circuits and tape automated bonding applications. Additionally, the metallic substrate may be directly coated with the copolyimide adhesive and used as a single-clad laminate for flexible printed circuits.
Patent EP-0476505-A2 (EP)
Inventor: OLIVER MICHAEL S
IPC: E21B10/22
Filed: 1991-09-11
Abstract: Sealed bearing rotary cone drill bits are subject to seal wear from detritus or debris generated during operation of the drill bit in a borehole. The debris invades the seal gland area resulting in premature cone bearing failure. A shale burn plug (38) secured in the leg back face (17) and positioned between the base of the rotary cone (30) and the leg back face has a shale or detritus diverting ridge (41) formed in the face (40) of the plug. Additionally, the burn plug is energized to urge the ridged face of the burn plug against the base of the rotary cone; the ridge (41) being non-radially oriented to divert debris away from the seal gland (21).
Patent EP-0482371-A2 (EP)
Inventor: MATYAS STEPHEN M
IPC: H04L9/08
Filed: 1991-09-25
Abstract: A method and apparatus in a public cryptographic system, control the use of a public key, based on the level of integrity for the public key. The method and apparatus generate a control vector associated with the public key, having a first field. The public key and the control vector are transmitted from the location of generation over a communications link to a receiving location, using the selected one of a plurality of levels of integrity for the transmission. At the receiving location, the public key and the control vector are tested to determine the received level of integrity for the transmission. Then, a value is written into the first field of the control vector which characterizes the received level of integrity. Thereafter, cryptographic applications for the public key are limited by control vector checking, to only those applications which have a required level of integrity which is not greater than the received level of integrity characterized by the first field in the control vector.
Patent EP-0461736-A2 (EP)
Inventor: GOETTLING HELMUT
IPC: F16K1/44
Filed: 1991-05-13
Abstract: The invention relates to a valve device which contains two valve bodies (36, 2 and 37, 32) arranged one behind the other on a plunger (5). Together with a first valve seat (3), the first valve body (36, 2) forms a first valve (3, 36, 2), and, together with a second valve seat (33), the second valve body (37, 32) forms a second valve (33, 37, 32). 
<??>Since, in the case of two valve bodies which are rigidly connected to one another, it is not possible to prevent one of the two valve bodies (36, 2 or 37, 32) being seated, for example because of production tolerances, imprecisely on its associated valve seat (3 or 33) during a closing process of the two valves (3, 36, 2 or 33, 37, 32), so that leakages may occur, according to the invention, at least one of the two valve seats (3 or 33), or also at least one of the two valve bodies (36, 2 or 37, 32), can be displaced in the direction of the longitudinal axis of the plunger (5) with respect to either the respectively other valve seat (33 or 3) or also with respect to the respectively other valve body (37, 32 or 36, 2) in the sense of changing the distance between the two valve seats (3 and 33) or in the sense of changing the distance between the two valve bodies (36, 2 or 37, 32). 
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Patent EP-0441634-A2 (EP)
Inventor: HATANO YUJI
IPC: G06F7/38
Filed: 1991-02-07
Abstract: A DC-powered Josephson integrated circuit comprising: a first group of magnetic flux coupling type Josephson element (101, 102); a first load resistor (111) of which one terminal is connected to one terminal of the first magnetic flux coupling type Josephson element (101) at a first junction (121); a second group of magnetic flux coupling type Josephson element (103, 104); a second load resistor (112) of which one terminal is connected to one terminal of the second magnetic flux coupling type Josephson element (104) at a second junction (125), the other terminals of the first and second group of magnetic flux coupling type Josephson elements (101, 102; 103, 104) being connected together at a third junction (123), the other terminals of the first and second resistors (111, 112) being connected together at a fourth junction (126); an inductance (114) connected between the third junction (123) and the fourth junction (126); a third resistor (113) connected between the first and second junctions (121, 125); a DC current source (115) connected between the first and second junctions (121, 125); and means for supplying control signals to a plurality of control input lines of each of the Josephson elements (101-104); the first and second group of Josephson elements (101, 102; 103, 104), the first and second load resistors (111, 112), the inductance (114), the third resistor (113), the DC current source (115) and the control signal supplying means constituting a logic circuit, wherein the first and second group of magnetic flux coupling type Josephson elements (101, 102; 103, 104) are respectively first and second element series circuits each having a plurality of magnetic flux coupling type Josephson elements connected in series.
Patent EP-0458441-A2 (EP)
Inventor: WOOLF LAWRENCE D
IPC: C01G1/00
Filed: 1991-03-04
Abstract: A ceramic superconductor comprises a substantially nonmagnetic preannealed nickel-based alloy substrate which supports a ceramic superconductor. The substrate may include aluminum to strengthen the substrate, make it less magnetic and enhance its chemical compatibility with the ceramic superconductor. The ceramic is formed on the substrate by sintering superconductor grains at temperatures above 1000°C to enhance densification of the ceramic.
Patent EP-0460796-A2 (EP)
Inventor: DEAK GEDEON IMRE
IPC: B32B15/08
Filed: 1991-04-19
Abstract: Improvements to silicon oxide coatings on polymeric substrates are disclosed, which provide improved barrier properties. One improvement involves doping an SiO₂ coating with one or more of certain metals. Another improvement involves first, forming an SiO coating on the substrate, followed by an SiO₂ coating. Another improvement involves the combination of the SiO/SiO₂ coatings plus the incorporation of certain metal dopant into the SiO₂ layer.
Patent EP-0468806-A2 (EP)
Inventor: BACHMAN MICHAEL SCOTT
IPC: H02H7/085
Filed: 1991-07-26
Abstract: The present invention features a system and method for preventing overheating of a motor and/or power amplifier of a material handling vehicle by controlling the performance of the vehicle as a function of motor and/or power amplifier temperature. Temperature sensors are connected to the motor and power amplifier for determining their operating temperatures. A controller is connected to each temperature sensor and to the motor for controlling acceleration of the motor as a function of either or both temperatures, so that both the motor and the power amplifier will not overheat. In controlling acceleration of the motor, the invention provides a mechanism for changing acceleration by discrete steps or continuously according to a performance curve which may be linear or otherwise.
Patent EP-0473429-A2 (EP)
Inventor: OKAJIMA HISAKAZU
IPC: G01R31/00
Filed: 1991-08-29
Abstract: An optical magnetic-field sensor includes a base (8) fixed relative to distal ends of optical fibers (2) inserted in the sensor, and optical parts (5,7) for transmitting optical signals between the distal ends of the optical fibers (2) and the optical parts and between an optical element (6) and the optical parts. The optical signals are collimated between the optical parts and the distal ends of the optical fibers by spherical lenses (12) optically aligned with the distal ends of the optical fibers, with synthetic resin members (13) filled in clearances between the distal ends of the optical fibers and the respective spherical lenses. The arrangement facilitates the alignment of optical axes of the optical fibers and the spherical lenses.
Patent EP-0479609-A2 (EP)
Inventor: KOHARAGI HARUO
IPC: A47L9/28
Filed: 1991-10-04
Abstract: In a vacuum cleaner, both static pressure H data  and a variation width ΔH in the static pressure appearing when a suction port is operated are detected from a pressure sensor (8) provided at a rear side of a filter (7) within a main body (2) of the vacuum cleaner; a current variation width Δpbi appearing when the suction port is operated is detected from a current of a nozzel motor (26) for driving a rotary brush (10) stored in a power brush suction port; an air quantity at the suction port is calculated from the current, rotational speed of a fan motor (FM) and static pressure ; command values are newly obtained by performing a fuzzy calculation with the variation width Apbi, static-pressure command value Hcmd ; the variation width ΔH and the static-pressure command value Qcmd ; the variation width Δpbi and static-pressure command value Hcmd ; and also the variation width ΔH and static-pressure command value Qcmd as the input thereto ; the rotational speeds of the fan motor (FM) and nozzel motor (26) are controlled from the result of the command values ; and further optimum air suction force is automatically obtained, depending upon the suction port under use and cleaning floor plane.
Patent EP-0482878-A2 (EP)
Inventor: COLLINS CRAIG C
IPC: B01F23/10
Filed: 1991-10-22
Abstract: An improved bubbler has walls formed of thin stainless steel. A hollow cylindrical body member forms a cylindrical sidewall; (16) and has welded to it a top end cap (12) and a bottom end cap (14). A horizontally disposed sparger tube (26) is connected to the carrier-gas inlet tube (24) and is positioned within the bubbler chamber adjacent to the bottom end cap. The sparger tube has a plurality of horizontally spaced-apart exit holes (28) formed therein for providing a plurality of carrier-gas streams into the liquid chemical. The carrier gas bubbles up through the liquid chemical, causing the liquid chemical to vaporize and diffuse into the carrier gas. A substantially uniform temperature throughout the chemical liquid is provided with a heat-conductive enclosure formed of aluminum plates (31,32,34) which are thicker than the walls of the bubbler chamber and which contact and entirely surround the exterior surface of the stainless steel bubbler chamber. Heating and cooling means are also provided for controlling the temperature of the liquid chemical in the bubbler chamber at a predetermined temperature. The bubbler chamber includes additional features such as a dimple formed in the bottom end cap to prevent reflection of light from a laser liquid-level sensor unit. The liquid-chemical inlet tube terminates within a well formed in the botton end cap to facilitate back flushing of the bubbler chamber.
Patent EP-0461023-A2 (EP)
Inventor: ABE SHINTARO
IPC: H04N1/327
Filed: 1991-06-04
Abstract: A communication apparatus capable of transmission and reception simultaneously through a plurality of communication channels of an ISDN basic interface has a communication mode which leaves at least one of the plurality of communication channels free. If this mode has been set, transmission or reception is allowed when this one communication channel among the plurality thereof is made free for the transmission or reception.
Patent EP-0464001-A2 (EP)
Inventor: ARICI GIANCARLO
IPC: B41F17/00
Filed: 1991-04-09
Abstract: There is provided a rotary printing press (1) for overprinting, comprising at least one overprinting group (2) equipped with at least one overprinting cylinder (3) having printing zones on its surface, at least one first support element (6) of a first spool (5) of a flexible support (4) to be unwound, the flexible support (4) having zones intended to be overprinted, at least one second support element (9) for the winding of a second overprinted spool (8) of said flexible support (4), means (10) for commanding the advance of the flexible support (4) along a working path located between the first and second support elements (6, 9), and means (12) for controlling the advance, which are intended for ensuring that said zones to be overprinted successively match exactly said corresponding printing zones. <IMAGE>