baber/WOPTO huggingface dataset:
Patent EP-0269954-A2 (EP)
Inventor: HABELER HEINZ D I
IPC: B23K9/10
Filed: 1987-11-19
Abstract: A stepping device working with a relay has hitherto been used in TIG welding methods for controlling the welding current in the search arc as well as in the arc for filling end craters. A large electrolytic capacitor which produced the change in current was connected in parallel with the field winding of the exciter. The object of the present invention is, inter alia, to provide a circuit working with low loss with regard to the power consumption. The essence of the invention lies in the fact that a pulse-width modulator is provided which switches the control current determining the welding current to the control device with a pulse duty factor which is variable automatically in time sequence. The control device in the case of welding generators is the field winding. It is advantageous with this invention that the circuit is constructed with electronic components, that action is taken directly in the control circuit of the power source and that linear current functions are thus realized.
Patent EP-0270063-A2 (EP)
Inventor: UCHIDE HITOSHI
IPC: G03G9/08
Filed: 1987-11-30
Abstract: A developer for developing electrostatic latent images comprises negatively chargeable toner particles and hydrophobic, negatively chargeable silica fine power, 
said silica fine powder being obtained by treating silica fine powder with a silane coupling agent represented by the following formula: 
RmSiYn or Y₃-Si-NH-Si-Y₃ 
and treating further said treated silica fine powder with a silicone oil having the structure:
        An image forming method comprises forming an electrostatic latent image on a photosensitive drum; developing said latent image with a developer to form toner images, said developer comprising negatively chargeable toner particles and, hydrophobic, negatively chargeable silica fine powder, 
said silica fine powder being obtained by treating silica fine powder with a silane coupling agent represented by the following formula: 
RmSiYn or Y₃-Si-NH-Si-Y₃ 
and treating further said treated silica fine powder with a silicone oil having the structure:
        electrostatically transferring the toner images formed to a transfer material; and cleaning the photosensitive drum after electrostatic transfer with a blade cleaning means.
Patent EP-0237259-A2 (EP)
Inventor: SYKA JOHN EDWARD PHILIP
IPC: H01J49/42
Filed: 1987-03-04
Abstract: A mass spectrometer includes an ion source (11) for projecting ions along a predetermined path, a detector (31, 32, 33) offset from said path, a quadrupole ion filter or analyzer (26) disposed adjacent said detector (31, 32, 33) to provide its output to the detector, and quadrupole means (36) for directing ions away from said path into said ion filter and analyzer (26). Such a spectrometer produces relatively low noise levels.
Patent EP-0250245-A2 (EP)
Inventor: MITSUBAYASHI YOSHIHIKO
IPC: A23L2/00
Filed: 1987-06-18
Abstract: An apparatus of making a soft ice-drink comprises a mixing mechanism including a container (57) containing a liquid material (B) such a syrup and into which shaved ice pieces (C) are discharged, rotary blades (53,54), rotatably supported within the container, for mixing together the liquid material and shaved ice pieces and breaking the shaved ice pieces into granules of ice, and a drive motor (50) for rotating the rotary blades at high speeds, and an ice shaving mechanism, disposed on an apparatus bed (1) and above the mixing mechanism, includ­ing a shaver casing (7) having a slit (17) to which a shaving blade (19) is exposed and a shaved ice discharge chute (18) open to above the container (57), and rotatable blades (25), provided within the shaver casing, for cooperating with the shaving blade to shave ice blocks charged into the shaver casing.
Patent EP-0263673-A2 (EP)
Inventor: SUZUKI MASAHIKO
IPC: B01J31/00
Filed: 1987-10-06
Abstract: A process having the characteristic that a silicon compound having at least one hydrogen atom directly bonded to silicon in each molecule is addition reacted with an organic compound having at least 1 aliphatic double bond in each molecule in the presence of a platinum catalyst and an amide compound with the formula, RCONR¹R². The presence of the amide maximizes the yield of the desired beta-adduct and minimizes the yield of the alpha-adduct.
Patent EP-0270300-A2 (EP)
Inventor: WOO ANN KING-KWAN
IPC: H03K19/177
Filed: 1987-11-25
Abstract: A static PLA or ROM circuit includes a logic gate portion, a precharge circuit portion and a feedback circuit portion. The feedback circuit portion is connected between the output of the logic gate portion and the input of the precharge circuit portion. The feedback circuit portion functions to delay the turn-on time of the precharge circuit portion when the output of the logic gate portion is making a high-to-low transition, thereby increasing the speed of the output transition.
Patent EP-0263756-A2 (EP)
Inventor: HOWELL PAUL F
IPC: H01L27/06
Filed: 1987-10-06
Abstract: A process for fabricating both bipolar and complementary field effect transistors in an integrated circuit is disclosed. The process begins with a structure having a P type substrate 10, an N type epitaxial layer 15, and an intervening N type buried layer 12. The process includes the steps of removing all of the epitaxial layer 15 and all of the buried layer 12 from regions of the substrate where NMOS devices are to be formed, to thereby leave second regions of the epitaxial layer 15 and buried layer 12 having sidewalls 21 protruding above the substrate 10. A layer of silicon dioxide 25 is formed at least over the sidewalls of the protruding regions, and then a further epitaxial deposition of silicon is employed to reform the epitaxial layer 28 over the first regions, which epitaxial layer 28 is separated from the previously formed epitaxial layer 15 by the silicon dioxide isolation 25. The process continues by fabricating bipolar and field effect transistors in separate ones of the first and second regions.
Patent EP-0263790-A2 (EP)
Inventor: SPREITER FRANZ
IPC: E01H1/12
Filed: 1987-10-01
Abstract: Die Vorrichtung zur Kotaufnahme hat einen nach Art einer Kehrrichtschaufel verwendbaren beutelförmigen Aufnahmebehälter (5) mit einem versteiften flachen Oeffnungsrand (15). Zur einfachen und hygienischen Handhabung sowie einfachen Herstellung ist ein Handschuhsack (1) in einem Stück an den Aufnahmebehälter (5) angeformt, indem beide aus einem gemeinsamen Folienschlauch hergestellt sind. Die Vorrichtung lässt sich zu einem flachen Päckchen zusammenfalten. Nach Füllen des Aufnahmebehälters (5) wird der Handschuhsack (1) über den Aufnahmebehälter (5) gestülpt, um diesen hygienisch zu verpacken.
Patent EP-0289741-A2 (EP)
Inventor: DZIOBEK FRANK
IPC: B01D47/00
Filed: 1988-03-10
Abstract: For discharging fine-grained hot solids from a pressurised space (1, 3, 4, 5, 9), the solids are continuously fed by means of a carrier gas to a washer (8), which is at a differential pressure relative to the space (1, 3, 4, 5, 9). In the washer (8), the solids are moistened with water, cooled and separated from the carrier gas. At the outlet from the washer (8) the resulting solids/water mixture is let down to atmospheric pressure and continuously discharged.
Patent EP-0290748-A2 (EP)
Inventor: MAZZUCCHELLI ATTILIO
IPC: H02K5/173
Filed: 1988-03-16
Abstract: A rotating electric machine with external rotor constituted for example by an asynchronous motor with cage rotor, in which the rotor structure (6′), instead of being mounted protrudingly on a stationary axial supporting element is supported thereon by means of two rotoric shields (8′c, 14) mounted by means of respective bearings (18, 19) on the axial supporting element (1′), which is conveniently monolithic with the stationary supporting shield (3′).
Patent EP-0290885-A2 (EP)
Inventor: CHIESI PAOLO
IPC: A61K31/34
Filed: 1988-04-29
Abstract: Isosorbide 2- and 5-mononitrate esters with aliphatic, aryl, or cynnamic acids or diacids, or with alkylcarbonyloxy substituents optionally containing an isosorbide 2- or 5-mononitrate group, are useful in human therapy.
Patent EP-0291819-A2 (EP)
Inventor: SAUER HEINZ
IPC: B01F25/74
Filed: 1988-05-10
Abstract: Um bei einem Verfahren zum Herstellen von Isocyanaten durch Kaltphosgenierung primärer Amine in Lösung oder Suspension eine Verbesserung hinsichtlich der Vermeidung von Klumpenbildung, Verstopfung und Anbackungen zu schaffen, bedient man sich einer Mischzone, in welcher Phosgenlösung axial gegen eine Rotorscheibe (11) geführt wird und das in Lösung oder Suspension befindliche Amin parallel zum, aber mit Abstand vom Strom der Phosgenlösung gegen die Rotorscheibe (11) verdüst wird, und wobei die beiden Stoffe durch mindestens eine Statorscheiben-Rotorscheiben-Einheit (12) geführt werden.
Patent EP-0295432-A2 (EP)
Inventor: PAQUES ERIC PAUL DR
IPC: C12N5/02
Filed: 1988-05-13
Abstract: The addition of animal sera to cell cultures has adverse effects on the activity of the cell proteins to be isolated. The invention thus relates to a process for the treatment of an animal serum in which the serum is treated with at least one nucleophilic agent. The invention also relates to a serum treated by the claimed process and to the use of this serum as additive to a culture medium for cell cultures. The negative proteolytic and inhibitory properties of the sera are selectively reduced so that the activity of the proteins to be isolated is retained to a high degree when the sera according to the invention are used.
Patent EP-0295616-A2 (EP)
Inventor: YOUNG LYDIA J
IPC: H01J37/301
Filed: 1988-06-13
Abstract: A differentially pumped seal apparatus (14) comprising a rough port nozzle (R), a medium port nozzle (M) and a high port nozzle (H), each with a centrally located sleeve (34,36,40) defining concentric apertures (44,48,52). Each nozzle is configured as a sector of a circular cylinder which provides for large channels (62,72,76) to be formed for connecting the sleeve apertures (44,48,52) of each nozzle directly to vacuum pumps (46,50,54) to thereby provide a graded seal with high conductance and increased pumping efficiencies, higher vacuum and a smaller gap between the sleeve (34,36,40) and a workpiece (12).
Patent EP-0321663-A2 (EP)
Inventor: KARL HEINZ-DIETMAR DIPL-ING
IPC: H02H9/04
Filed: 1988-10-01
Abstract: A circuit for protecting a switching transistor connected between a direct-current voltage source and an inductive load has a voltage-limiting element connected between the source and the transistor for switching the transistor when the voltage of the source exceeds a predetermined limit, elements for deriving from the voltage-limiting element a control signal when the source voltage exceeds the predetermined limit, and a variable pulse-width modulator connected to a control input of the transistor and receiving the signal from the means. The modulator decreases pulse width when the source voltage exceeds the limit.
Patent EP-0318672-A2 (EP)
Inventor: RENI MARIO
IPC: G01F23/04
Filed: 1988-10-05
Abstract: A device for the checking of the level and the movement of the mass under process inside a vibrating machine which consists of a metal bar (5), acting as a pendulum, the lower end (6) of which is periodically plunged into the said mass while the upper end (13) interacts with a detector (7) for the reading of the required technical data.
Patent EP-0313930-A2 (EP)
Inventor: SASAKI TAKESHI
IPC: B21B13/12
Filed: 1988-10-13
Abstract: A plurality of roll stands (3, 4, 5) are arranged along a planned passage line (A) of a roll material (W). Each of the roll stands is provided with a pair of rolls (25) each of which is formed, on the outer circumferential surface thereof, with a groove (28) for rolling. The bottom surface formed on each roll is a circular arc in cross section. Both side surfaces of the groove are, in cross section, circular arcs of a radius larger than that of the bottom surface or segments of line. 
     The roll material transferred along the planned passage line is passed between the grooves on the pair of rolls in each roll stand. Thus, the roll material is rolled. In this case, even if the thickness of the roll material deviates, it can be rolled into a finished material of a prescribed dimen­sion.
Patent EP-0312943-A2 (EP)
Inventor: MINHAS BHUPENDER SINGH
IPC: B01D53/22
Filed: 1988-10-15
Abstract: Cellulose acetate butyrate gas separation membranes are prepared from a casting solution containing from about 10 to 30 percent polymer, 35 to 70 percent solvent, and 15 to 30 percent pore-forming agents. A film casting solution is cast onto a substantially flat support surface and a dense layer is formed on the exposed film surface. The film is gelled, washed, and dried to produce a particularly useful gas separation membrane. The cellulose acetate polymers used in this preparation have molecular weights of at least about 20,000, and have about 10 to about 45% butyryl groups, about 2 to about 35% acetyl groups, and about 0.8 to about 2 percent hydroxyl groups, by weight. The membranes may be used for separating a feed gas into a permeate fraction and a residual fraction, and are particularly useful for separating gases in the purge gas stream of ammonia plants to recover a permeate which is relatively rich in hydrogen. Cellulose acetate butyrate membranes may be used to improve the separation of ammonia plant purge gases which contain ammonia as well as hydrogen and nitrogen, especially when there is no pretreatment of the purge gas to remove ammonia gas.
Patent EP-0281245-A2 (EP)
Inventor: MATSUOKA TATSUJI SANKYO COMPAN
IPC: C12P17/18
Filed: 1988-02-02
Abstract: Novel cytochrome P-450 sca-1 , P-450 sca-2  and P-450 sca-3  enzymes are produced by cultivation of  Streptomyces   carbophilus  SANK 62585, and are suitable for use in hydroxylation processes.
Patent EP-0278790-A2 (EP)
Inventor: PAN KEE-CHUAN C O EASTMAN KODA
IPC: G11B7/243
Filed: 1988-02-15
Abstract: Recording and record elements are disclosed. The elements have thin film optical recording layers of a SbSnGe alloy. The alloy has a composition within a polygon ABCDEF in a ternary SbSnGe composition diagram as shown in Figure 5 herein.
Patent EP-0289180-A2 (EP)
Inventor: GODDARD CARL J
IPC: C07D213/80
Filed: 1988-04-18
Abstract: A novel process for chlorinating 2-methoxy­nicotinic acid at the 5-position of the molecule is disclosed. The process involves the use of an alkali metal hypochlorite as the chlorinating agent in a homogeneous aqueous solvent system. The compound so produced, 5-chloro-2-methoxynicotinic acid, is known to be useful as an intermediate leading to various oral hypoglycemic agents of the benzenesulfonylurea class.
Patent EP-0299777-A2 (EP)
Inventor: CARLBERG BOBBIE L
IPC: C09K8/528
Filed: 1988-07-15
Abstract: Scaling of a production well in a non-carbonate subterranean reservoir is inhibited by injecting into the reservoir a mixture of a phosphonate inhibitor and a calcium chelate where the calcium chelate has a lower stability constant (Ke) than the phosphonate inhibitor.
Patent EP-0300722-A2 (EP)
Inventor: AKABANE HIDEMITSU
IPC: G05D23/13
Filed: 1988-07-18
Abstract: An automotive air conditioning system is disclosed whcih includes an air mix damper (1) which controls temperature of the air flown out, a motor (5) which drives the air mix damper. A motor actuator (4) includes a rotation control siwtch (6) which is provided with a regulating portion (7) for regulating upper and lower limitations of a rotational angle of the motor and a position detecting portion (8) which detects the rotational angle of the motor, and a control circuit (14) which drives the motor actuator (4) in accordance with a plurality of detected signal, e.g., an inside temperature signal or an outside temperature signal. The control circuit starts operation of position control of the motor actuator after inputting one of position signals corresponding to upper and lower limitations of the rotational angle of the motor. A determination means determines whether or not the motor is stopped within a range of the upper and lower limitations of its rotational angle. A control means uses a signal from the position detecting portion (8) at a position which the motor is stopped as the position signal of the regulating portion. Therefore, an automotive air conditioning system can suitably controls the temperature of the air which is flown out to a compartment.
Patent EP-0308090-A2 (EP)
Inventor: SU TIEN-KUEI
IPC: C08L23/00
Filed: 1988-08-24
Abstract: Heat pressure and extruder torque in the extrusion of linear ethylene polymers as linear low density polyethylene (LLDPE) are reduced by adding a small amount (less than 3 weight percent) of a thermoplastic polyamide polymer. Films extruded from the blend exhibit better surface appearance by reduction of melt fracture.
Patent EP-0317196-A2 (EP)
Inventor: EDDY RICHARD PAUL
IPC: G03B21/32
Filed: 1988-11-11
Abstract: An apparatus for continuously storing a strip of material in a coil 48, including a flat platter 46 and a drive for rotating the platter 46, the coil 48 lying edgewise on the platter 46 and the strip including an incoming strip portion leading to the coil periphery and an outgoing strip portion leading from the coil center, an arrangement for applying the incoming strip portion to the periphery of the coil 48 of the strip on the platter 46 as it rotates, in an even number of substantially straight strip sections joined at curved corners providing alternating even and odd strip sections and applying an inward pressure to the even strip sections to form the even strip sections into concave strip sections. A resistance pad 150 positioned on the platter 46 at the odd strip sections for engaging the strip edge and resisting movement of the strip toward the coil center, with the resistance pad 150 having a friction producing surface with a lower level and a higher level with an inclined surface 152 between the levels and with the outer edge of the higher level being substantially straight, and a skid pad 160 positioned on the platter at the even strip sections for engaging the strip edge and enhancing movement of the strip toward the coil center, with the skid pad 160 having a convex inner edge 161 with an upward turned lip.
Patent EP-0318320-A2 (EP)
Inventor: EMBREE DAVID M
IPC: H03B5/36
Filed: 1988-11-25
Abstract: Maximum frequency range in a VLSI voltage-controllable crystal oscillator is obtained with a two-stage amplifier with feedback across both stages. The first stage is implemented by an M0S transistor (12) connected in source-follower configuration to minimize input capacitance, and the second stage (16) provides the needed gain. 
     If the second stage is implemented by a CMOS transistor, its source electrode and body are connected together to eliminate body effect. A bidirectional voltage limiter (30) connected to a crystal node limits the oscillations to a symmetrical waveform. 
     The bias of an output buffer amplifier (50) may be selectively shifted to maintain optimum duty cycle with the different triggering levels of diverse logic driven by the oscillator, and the bias may be dynamically driven by an analog signal to provide a duty cycle-modulated output.
Patent EP-0346880-A2 (EP)
Inventor: SETO TSUNEO MIZUSHIMA WORKS KA
IPC: B21B27/02
Filed: 1989-06-14
Abstract: Adjustable width rolls are preferably used for rolling, for example, insides of H-beams (1) of various sizes without exchanging horizontal rolls of a rolling mill. Each of the adjustable width rolls includes a roll shaft (6) rotatably and axially movably supported relative to the rolling mill, and axially adjustable sleeve roll (5a) fixed to the roll shaft (6), and an axially stationary sleeve roll (5b) mounted on the roll shaft (6) to be axially slidable but against rotatable relatively to the roll shaft (6). The adjustable width roll further includes an axially adjustable roll (LR) fixedly supported by the axially adjustable sleeve roll (5a) to form substantially one half of a rolling barrel of the adjustable width roll, an axially stationary roll (RR) fixedly supported by the axially stationary sleeve roll (5b) to form substantially the remaining half of the rolling barrel of the adjustable width roll, and driving means (10-15) for driving the roll shaft (6) in axial directions of the roll shaft.
Patent EP-0360000-A2 (EP)
Inventor: JONNER WOLF-DIETER DIPL-ING FH
IPC: B60T8/48
Filed: 1989-08-16
Abstract: Zur Anfahrschlupfregelung (ASR) und als (Berg)Anfahrhilfe wird bei einem Antiblockiersystem (ABS) mit zwischen Radbremszylindern (13a,13b) und Hauptbremszylinder (10) geschalteten ABS-Mehrwege-Regelventilen (15a,15b), Speicherkammer (17) für die Aufnahme von Druckmittelvolumen und Rückförderpumpe (RFP) (21) vorgeschlagen, daß der Fahrer zunächst die Bremse betätigt, ferner durch Schalterbetätigung ein ASR-Umschaltventil (24) ansteuert und die Verbindung zum Hauptbremszylinder (10) unterbricht,worauf beim Anfahren die ABS-Regelventile (15a,15b) den Bremsdruck in die Speicherkammer (17) entlasten und anschließend bei Antriebsschlupf an einem Rad die Rückförderpumpe (21) zur Erzeugung von Bremsdruck sowie die mit diesem beaufschlagten ABS-Regelventile (15a,15b) zur ASR-Bremsdruckmodulation selektiv angesteuert werden. <IMAGE>
Patent EP-0355708-A2 (EP)
Inventor: TAKASU HIROSHI
IPC: B29C55/18
Filed: 1989-08-17
Abstract: The present invention provides a process for preparing rolled heat-treated films or sheets of a crystalline thermoplastic resin in which heat shrinkage is notably improved, formability is excellent and tensile strength in a transverse direction is increased. 
     The process of the present invention comprises the steps of rolling a crystalline thermoplastic resin material through between pair of rolls at a temperature which is lower than the melting point of the resin material but higher than room temperature, and then successively subjecting the resin material to a heat treatment at a temperture which is higher than the rolling temperature but lower than the melting point of the resin material, the aforesaid process comprising that the heat treatment is carried out for a time (t: seconds) satisfying the formula
      wherein d is a thickness (mm) of the rolled films or sheets, r is a thickness reduction rate of the rolled films or sheets, Tr is the rolling temperature   (°C),Ta is the heat treatment temperature (°C), and Tm is the melting point (°C) of the crystalline resin.
Patent EP-0358987-A2 (EP)
Inventor: HARTMANN UWE
IPC: H04N9/64
Filed: 1989-08-23
Abstract: Lines inserted at the top picture edge for measuring and automatically adjusting the cut-off points for the electron beams become disturbingly visible if the screen is not fully scanned as, for example, in the case of monitors. 
<??>During the period of generation of the test lines, the electron beams are defocused by reduction of the focus voltage so that they are no longer visible. 
<??>Monitors 
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Patent EP-0377124-A2 (EP)
Inventor: KOVACH JOSEPH ALLAN
IPC: B23P15/14
Filed: 1989-12-05
Abstract: An improved method is provided for finish machining forged and/or rough-cut teeth (8) of a ring gear (40) by which a rotary tool (24) such as a rotary carbide milling tool is rotated about a rotational axis "r" that project­ionally intersects a bottom surface (12) of tooth (8) as it tracks along a predetermined tool path enabling the rotary tool to be in close proximity to sidewalls (14,14′) of teeth (8) and thereby eliminating the practice of having to normalize the ring gear microstructure prior to machining teeth (8).
Patent EP-0374694-A2 (EP)
Inventor: MAEDA SHUNJI
IPC: G01N21/88
Filed: 1989-12-12
Abstract: A defect detection system and method for a pattern to be inspected wherein multiple-focus images of the pattern to be inspected are obtained and a defect on the pattern to be inspected is detected utilizing the multiple-focus images.
Patent EP-0323866-A2 (EP)
Inventor: DUGGAN MARK
IPC: A61K31/22
Filed: 1989-01-02
Abstract: Novel 3-hydroxy-3-methylglutarylcoenzyme A (HMG-CoA) reductase inhibitors are useful as antihypercholesterolemic agents and are represented by the following general structural formulae (I) and (II):